Page 1

SCREWS FOR WOOD


Packaged quantities may vary. No liability is assumed for any errors in printing, technical data or translations. Illustrations do not show all the accessories. Images for illustration purposes only. This catalogue is the exclusive property of Rotho Blaas srl and may not be copied, reproduced or published, totally or in part, without prior written consent. All violations will be prosecuted according to law. The values provided must be verified by the designer in charge. No liability is assumed for any printing or typing errors. All rights reserved. Copyright Š 2014 by rothoblaas

3


MUNICH

INNSBRUCK BREGENZ

MILAN

4


SALISBURGO

BOLZANO

Rotho Blaas SRL

TRENTO

VENICE

VERONA

MANTUA

Rothoblaas is an Italian multinational from the alpine region, a leader in the development and supply of advanced technological solutions for the timber building sector.

5


HEADQUARTERS

Here, everything that involves the product is done internally. We take care of the entire process from the idea to its development, through to its entry on the market. We design, we test, we carry out checks on our products and we follow the entire certification process. We prepare the data sheets and the construction details, we develop the calculation and verification software, and we oer complete consulting. We are responsible for advertising, we create our catalogues, and we are directly involved in every aspect of packaging and labelling. And we do all this with the skills we have within our company.

Robert Blaas

We want to create products that distinguish us, even if only for one detail.

Peter Lang

6


7


HEADQUARTERS IN CORTACCIA

ROTHO BLAAS AROUND THE WORLD Rotho Blaas was founded in 1991 as a distributor

AFFILIATES IN EUROPE

of machine tools for woodworking. Over the years, it began to specialise in the timber building market, growing and developing an ever more complete structure. Today, the

Rotho Blaas France SARL France - Colmar

company is one of the main players in the sector

Rotho Blaas GMBH

at the international level, present in 25 countries,

Rotho Blaas Iberica SL

Austria - Innsbruck

with 7 logistics centres located throughout the

Spain - Manresa

world and over 250 employees, and it is still

Rotho Blaas RU

growing.

Russia - Saint Petersburg

Rotho Blaas Baltic SIA Latvia - Riga

A clear vision is at the heart of Rotho Blaas’s current international success: becoming the reference point for the timber building sector at the global level by 2020. Nevertheless, this global vision does not conflict with the

AFFILIATES IN SOUTH AMERICA

company’s strong connection with the local area, which has never wavered during its growth but has, instead, become stronger.

Rotho Blaas Argentina SRL Argentina - Buenos Aires

Today Rotho Blaas can be found all over the world, from South America to Asia. Italy continues to be its main market, but over the next few years it will move beyond these borders.

Rotho Blaas Brasil LTDA Brasil - Curitiba

Rotho Blaas Colombia SAS Colombia - Bogotà

Fastener Soluciones SA Ecuador - Quito

Rotho Blaas Chile SPA Chile - Santiago

8


We can reach you anywhere

every year ...

60000 35000 t 28 SHIPMENTS

OF MERCHANDISE HANDLED

mln

km

TRAVELLED BY THE MERCHANDISE 9


QUALITY & INNOVATION

more than

10000

PARTICIPANTS IN OUR COURSES/SEMINARS

more than

30000 VISITS PER YEAR TO OUR WEBSITE

more than

8000 CONSULTATIONS PER YEAR

10

school • training aimed at professionals and designers • courses for companies, sector associations, high schools and universities • large equipped instruction spaces, over 300 square meters • space for practical tests • Rothobar service for events such as presentations, company dinners, exhibits, conventions


web support • • • •

choose language browse and download our catalogues calculation software direct contact for information or consultations

www.rothoblaas.com

• technical assistance for professionals and customers in the sector • specialised consultations for designs and worksites • calculation reports • wide range of products

11


OUR STORY More than 20 years of serving those who design and build with wood. transfer to the new modern headquarters in Cortaccia (Bolzano) marketing fastening systems founded in Bolzano

1991

1996

only a few types of screws available on the market, with maximum

transfer of offices and

start of exports to

warehouse to Ora (Bolzano)

Slovenia and Spain

2001

2003

creation of the company’s internal technical department

dimensions of 5 x 100 mm

Rotho Blaas becomes a producer

screws produced reach lengths

geometric improvements: cutter and notch

of up to 200 mm with a maximum Ø of 6 mm

HBS

TBS

12

2004

2005


Rothoblaas is a leader in the

expansion of the headquarters in Cortaccia (BZ): a total of 57,000 cubic meters, with 4,250

opening of the affiliate,

building sector, strictly for

Rotho Blaas France SARL

constructions in wood...

square meters of warehouse opening of the affiliates and warehouses Rotho Blaas Baltic SIA in Latvia, Fastener Soluciones SA in Ecuador, Rotho Blaas Colombia SAS and Rotho Blaas Chile SPA

opening of the

opening of the affiliates and warehouses

affiliate Rotho Blaas

Rotho Blaas RU in Russia, Rotho Blaas

GMBH Austria

Argentina SRL and Rotho Blaas Brasil LTDA

opening of the

opening of the affiliate and

affiliate Rotho Blaas

warehouse in Australia

Iberica SL

2006

2007

2008

SKR

2009

2010

2011

2012

2013

DGZ

2014

2020

positioning among global leaders in the screw market product range that includes more than 40 types of screws and 700 item codes

SCI

VGS

VGZ

first CE producer in accordance with the EN standard in Europe CEEN14592 KKF

HTS

EWS

SHS

HBS +evo

entry into the world of external fastenings

KKT

among the largest CE producers in accordance with ETA in Europe ETA 11/0030

13


PRODUCTION Rothoblaas is a modern producer: it designs, manufactures, certifies and markets its products using its name and its brand. The production process is systematically controlled at every stage (FPC) and the entire procedure is closely supervised by third-party entities that approve and guarantee proper execution.

Raw materials Steel wire enters the plant after being inspected

geometric inspection according to regulated tolerances and calibration

4. Notching the tip Precise notches, set back from the self-perforating tip

Steel cleaning The wire coils are carefully washed

123456

HBS

3. Rolling Creation of the thread down to the tip, and of the cutter

TRACEABILITY Incoming raw material is registered to guarantee traceability

both

when

production is complete

1. Cutting to length The steel wire is inserted in the all-in-one machine

and when the product is sold

verification, inspection and registration of the incoming raw materials

2. Head moulding Multiple cold presses with name and length

MODERN PRODUCTION WITH

14


10. Sales and traceability With the lot number and sales order, all production stages registered by the associated checks can be traced: the customer is then sure to receive a certified quality product

QUALITY OF THE STEEL With the steel annealing and tempering process, Rothoblaas screws obtain the

9. Quality control at Rothoblaas The FPC procedure continues with a second stage of geometric and mechanical checks carried out at Rothoblaas

perfect balance between resistance (fyk = 1000 N/mm2) and ductility (excellent possibility of bending), thanks to high-level engineering know-how

8. Arrival at Rothoblaas Acceptance of incoming merchandise and receipt of merchandise by the Quality Control Lab

inspection of box and label 5. Heat treatment Tempering of the steel using special modern furnaces

7. Packaging and labelling Automated packing and labelling line 6. Galvanizing and waxing Zinc coating in an electrolytic tank followed by anti-friction waxing

1 2 3 4

mechanical check: ultimate resistance to torsion, traction and bending angle

Rotho Blaas ETA-11/0030 1034 DoP: www.rothoblaas.com

CE  ETA  DoP As the manufacturer, Rothoblaas is responsible for its products covered by an ETA. These products must include the accompanying CE marking, normally applied on the label, which has legal value and must include the following information: check on coating thickness and salt spray sample tests

1. IDENTIFICATION OF THE MANUFACTURER 2. ETA NUMBER

ALL-IN-ONE MACHINES

3. NUMBER OF THE INSPECTION AND SUPERVISION NOTIFIED BODY 4. DECLARATION OF PERFORMANCE DoP

15


ROTHO BLAAS ASSISTANCE Technical and application problems related to the design and execution of a task can be resolved by selecting the right products and solutions, thanks to assistance from a technical office composed of specialised consultants and technicians.

16 highly specialised technicians work at our office, developing new products, creating data sheets, preparing calculation models, and developing support tools for design and software. We can offer designers, technicians and installers a consulting

16

TECHNICIANS available

8000

CONSULTATIONS

11

SPECIALIST MULTILINGUAL courses

in 2013

service aimed at obtaining the utmost efficiency and performance from our products. We offer regulatory information, assistance with calculations, technical documentation, accompanying certification and assistance during the installation stage.

550 PARTICIPANTS in 2013

6 CATALOGUES 6900

ITEMS

96 SEMINARS in 2013

throughout the world

10000

16

PARTICIPANTS


FASTENINGS

WATERPROOFING

FALL PROTECTION

analysis and solutions for

positioning of safety lines

acoustic problems consulting and checks

resolution of design and execution

for personal protective

problems

equipment (PPE)

technical assistance

specific design of requested static calculation

details

for customers and sector technicians

direct consultations and technical training

Design tools are available on our website: catalogues, technical drawings, instruction papers, technical datasheets and specifications, calculation software and videos.

assistance with assembly

Ask for your consultation at

www.rothoblaas.com

17


ROTHO BLAAS SOFTWARE Thanks to the ease of use of our software, a wide array of design-node cases can be easily analysed and verified, making use of the vast selection of structural hardware.

MyProject: a simple intuitive interface that can be

installation instructions and explanatory illustrations,

used both for calculations and to check our systems.

all of which allow the designer to concentrate on

It automatically generates a calculation report, oers

their design choices, making comparisons and

online availability of product certificates and provides

selecting the best option.

MYPROJECT

HBS - TBS - HBS+evo slotted screws

VGS reinforcements

VGZ shear joints

DGZ WS insulating fastening moment-resisting joints

OTHER SOFTWARE

VB wood - cement floors

WT - WRT - UD joints and reinforcements

For the whole selection: www.rothoblaas.com

18

ALU bracket shear joints


Possibility to choose between calculation methods according to the Eurocode 5 (EN 1995:2008) and NTC 2008 (DM 14/01/2008), in compliance with the product certificates.

a4c a2 na1

dice 5

a3t a1

Euro co

F

α1=0

CALCULATION REGULATIONS

na2

α2

GRAPHIC INSTRUCTIONS Dedicated window for graphical representation of the data, for proper management of the calculation.

8

1 2 7

9 3 6

9 5 4 4

ATMOSPHERIC LOAD CALCULATION Computation of weathering of the structure, inserting the location and a description of the work.

CERTIFICATION Accompanying product documents available at a click, ready to be printed and attached to the report.

CALCULATION REPORT 100

0

Generates a personal report, ready to use, including the calculation with checks, product specifications, metric calculation and positioning instructions.

DATA ENTRY Step-by-step instructions for proper entry of data and immediate checks on the design congruence of the node.

19


PACKAGING Like all Rothoblaas products, the packaging has also been carefully designed. Innovation and environmental sustainability guide all aspects of the design, from the individual box through to pallets.

BOX

HOOD PACKAGING

Practical and robust

Protection and design

Rothoblaas packaging adapts perfectly to the

Palletising using special packaging made of recycled

needs of both carpenters and craftsmen. Its double

cardboard with a “hood� protects the boxes from

opening is convenient for use at both worksites and

humidity, damage and dirt, as well as guaranteeing

factories. In addition, the reinforced double structure

that the Rothoblaas style is recognisable.

makes it resistant to wear and weather. The bit and accompanying CE marking document are included in the box.

20


FULL RANGE The various combinations of geometric and technological screw characteristics mean a complete selection of solutions can be offered, where every application finds its best use.

HEAD The geometry of the head determines the degree of aesthetic finishing of the fastening and its resistance to penetration of the screw in the wood.

THREAD Thread technology determines the progress capacity of the screw in the wood (speed and performance) and the type of material that the screw is able to thread.

TIP The geometry of the tip determines the method used to insert the screw in the support, which may vary from soft wood to hardwood, to steel and to cement.

MATERIAL AND COATING The selection of the material for the screws is fundamental when the fastening is used in service class 3, or outside and in aggressive environments in which the screw may be subject to corrosion.

21


COUNTERSUNK WITH RIBS [HBS] [HZB] [SCH] [SCI] [SBS] [SPP] [VGS]

WIDE [TBS]

COUNTERSUNK SMOOTH [HTS] [DRS] [DRT] [WRT] [SKS] [SBN] [SCS]

COUNTERSUNK 60° [SHS] [SHS-AS]

ASYMMETRIC “UMBRELLA” [HBS] [HZB] [TBS] [SCH] [HBS+evo]

ROUND [LBS]

REGULAR FAST [VGZ] [VGS] [WT] [WRT] [DGZ] [UD] [EWS] [SCI]

HEXAGONAL [KOP] [SKR]

REGULAR SLOW [HTS] [SHS] [LBS] [DWS] [HZD] [VB] [KKF] [miniWT] [MCS]

CONE-SHAPED [KKT]

TRILOBULAR [KKT]

UNDERHEAD [HBS+evo] [KKF] [HZK]

QUADLOBULAR [EWS]

CONVEX [EWS] [MCS]

FINE, FOR STEEL [SBS] [SPP] [SCS] [SBN]

CYLINDRICAL [VGZ] [DGZ] [MBS]

CLASSIC WOOD [KOP] [WB]

SFS CYLINDRICAL [WT] [UD] [WS] [miniWT]

METRIC + WOOD [MWS] [SOL]

BUSH [VB]

DOUBLE SPACER [DRS] [DRT]

BUGLE [DWS] [HZD]

HI-LOW [MBS] [SKR] [SKS]

HEAD 22

THREAD


the ideal

FULL RANGE

combination

SHARP [HBS] [HZB] [HTS] [LBS] [DRT] [SCH] [DWS] [HZD] [MCS] SHARP 1 CUT [HBS] [HZB] [SHS] [DRS] [SCH] [KKT] [HBS+evo] [KKF] [VGZ] [VGS] [DGZ]

CARBON STEEL + GALVANIC ZINC COATING [HBS] [TBS] [HTS] [SHS] [LBS] [DRS] [DRT] [SCH] [KOP] [MBS] [VGZ] [DGZ] [VGS] [WB] [WS] [VB] [SKR] [SKS] [SBS] [SPP] [SBN] [MWS]

SHARP 2 CUT [KKT]

CARBON STEEL + DUROCOAT [WT] [WRT] [UD] [miniWT]

SHARP 4 CUT [EWS]

CARBON STEEL + ORGANIC ZINC COATING [KKT]

BLEEDER [DRS] [WT] [miniWT]

CARBON STEEL + REVODIP [HBS+evo]

DRILLING [WRT] [WT]

STAINLESS STEEL AISI 410 / MARTENSITIC [KKF] [HZK] [EWS] [SHS-AS]

HOOK [UD]

STAINLESS STEEL AISI 304/A2 [SCI] [miniWT] [MCS] [SOL] [WBAZ]

WOOD - STEEL [SBS] [SPP] [SCS] [SBN]

STAINLESS STEEL AISI 316/A4 [SCI] [KKT]

STEEL [WS]

BI-METAL STAINLESS STEEL + CARBON STEEL [SCS]

CLASSIC WOOD [MBS] [KOP] [MWS] [SOL]

PHOSPHATE STEEL [DWS] [HZD]

CEMENT [SKR] [SKS]

EPDM/PP ELEMENTS [WBAZ] [SOLBAZ] [MCS] [thermowasher] [isulfix]

TIP

MATERIAL AND

COATING 23


CARPENTRY

26

HBS

32

HZB

44

TBS

46

HTS

54

SHS

58

LBS

60

DRS

64

DRT

66

SCH

68

KOP

74

MBS

82

DWS

84

HZD

85

THERMOWASHER

86

ISULFIX

87

STRUCTURES

24

88

VGZ

98

WT

114

DGZ

126

UD

132

VGS

136

WRT

148

WB

160

WS

164

VB

172

SKR - SKS

180


SCREWS FOR WOOD

OUTDOOR

186

KKT

208

HBS+evo

216

KKF

222

HZK

229

SCI A2 - SCI A4

230

EWS

236

SHS AS

238

mini WT

240

WOOD/METAL

ACCESSORIES

242

SBS - SPP

244

SBN

247

SCS

248

WBAZ + TBS

250

MCS

252

MWS

254

SOL

256

260

25


26


27

1. CARPENTRY


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

GEOMETRY The tip, thread and head determine the geometry of a screw, consisting of a combination of parts in which the details make the difference in terms of performance.

THE ROTHOBLAAS SELFďšşTAPPING SCREW Technical and geometric details ensure quality and

4. CUTTER: the geometry of the cutter is carefully

performance.

studied to widen the wood grain and move away

1. SELF-PERFORATING TIP: features sharp, cutting

the shavings created as the screw progresses.

geometry with a corkscrew thread right to the end

The cutter creates the space for the passage of the

and guarantees fast and high-performing initial grip.

shank and limits screw overheating.

2. NOTCH: in screws with lengths over 50 mm,

5. SHANK: special surface waxing covers the smooth

the self-perforating tip includes a setback notch

shank and reduces friction by 30% during screwing.

that makes it easier to cut through the grain while

6. UNDERHEAD: the ribs are very sharp and able to

screwing and reduces the risk of the wood splitting.

cut through the shavings coming out of the hole,

The well-setback position of the notch is fundamental

following perforation of the wood.

for guaranteeing excellent grip and perforation of

7. HEAD: the name and length engraved on the head

the tip.

guarantee traceability and make it easy to recognise

3. THREAD: the spacing of the thread is calibrated

and verify the screws, including at the worksite.

according to the diameter and length of the screw: a coarse thread is ideal for long screws to reduce screwing time, while a fine thread is ideal for small screws, to guarantee precision once screwed in.

28


CARPENTRY

STRUCTURES

1

TIP

OUTDOOR

WOOD/METAL

5

self-perforating corkscrew

2

NOTCH

THREAD SPACING calibrated speed

4

WAXING reduces friction

6

cuts the grain

3

ACCESSORIES

RIBS excellent surface finish

7

NAME AND LENGTH recognisable and traceable

CUTTER opens the passage

the detail that makes

the dierence

29


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

TIPS - PERFORMANCE Rapid grip and easy progress are performance aspects that depend heavily on the geometric characteristics of the screw tip. The right balance is obtained during production, thanks to proper design.

EASE OF PROGRESS

penetration depth applying 1.0 Nm of twisting torque [mm]

EXPERIMENTAL SCREWING TESTS

medium

120

110

good

Additional reverse rolled thread

Rothoblaas prototype

Additional regular thread 100

Rothoblaas

Vertical ribbing and hi-low thread 90

Corkscrew tip with no notch Double parallel thread at the tip

80

Tip with coarse helix thread 70

Squared hollow mid tip

60

Notch at tip end 50

bad

40 26

medium

28

30

32

34

36

38

40

penetration depth after 1.0 s of screwing [mm]

GRIP SPEED WOOD DAMAGE high

low

none Complete figures and official report on file with the Rothoblaas technical office

30


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

RESEARCH & DEVELOPMENT

KNOWHOW

Various internal tests carried out in the Research &

Careful technological design makes it possible

Development department on various types of screws

to find the ideal balance between the initial grip,

available on the market show that:

the ease of advancement for the screw and the

• fast grip is obtained with a sharp tip, initial coarse

reduction of wood damage during screwing.

thread and a regular conical profile in the first

During production, it is possible to create a product

section;

that fully satisfies the user’s needs.

• ease of progress is the ability of the screw to penetrate the wood with reduced effort and is obtained with an initial slow thread (double or reverse) and irregular geometry that facilitates the removal of shavings; • to allow for fast insertion, the notch must be setback with respect to the end of the tip and is fundamental for screws longer than 50 mm, to avoid splitting during insertion and to maintain an acceptable level of wood damage.

31


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

HBS

ETA 11/0030

Countersunk screw Carbon steel with white galvanic zinc coating

PACKAGING Box + CE paper + BIT

SPECIAL STEEL Highly ductile (moves with the wood) and high-resistant steel (fy,k = 1000 N/mm2)

SPECIAL THREADING Asymmetric “umbrella” threading for better wood penetration

ECO-FRIENDLY Trivalent Cr3+ ichrome coating, replacing hexavalent chrome Cr6

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based panels. Service classes 1 and 2.

32

HBS

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

STATIC SAFETY The screws’ fast initial grip makes it possible to create secure structural connections in all assembly conditions

AESTHETICS The very sharp underhead ribs guarantee an excellent surface finish

STEEL – WOOD Can also be used with steel plates and hooks, and with turned washers for better performance

HBS

33


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Applications Securing X-Lam panels side by side: panel-panel joints

Securing platform beams to the framed panel

Securing roof rafters to platform beams

Screws with diameters between 3.0 and 5.0 mm and a length of less than or equal to 50 mm are provided with an unnotched self-perforating tip that increases the grip and hold of the screws. Ideal for using with single bits, it is easily interchanged in the bit holder to obtain the utmost screwing precision. Screws with diameters greater than 6.0 mm have a notched self-perforating tip that avoids the risk of the wood splitting. Ideal for use with double bits directly attached to the mandrel to obtain maximum screwing force and stability.

500

1

Range

600 2 3 4 5 6 7

200

ø3

ø3,5

TX10

TX10

unnotched selfperforating tip

34

HBS

ø4

TX20

ø4,5 TX20

ø5

TX25

ø6

TX30

ø8

TX40

notched selfperforating tip

ø10

TX40

ø12

TX50

42 43 44 45 46 47 48 49 5 0 51 52 53 54 55 56 57 58 59 6 0

100

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

300

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

400


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

3

TX10

L b

3,5

d1

TX10

4

TX20 A

4,5

TX20

5

TX25 TX20

D2

6

TX30

code HBS316 HBS320 HBS325 HBS330 HBS3520 HBS3525 HBS3530 HBS3535 HBS3540 HBS3545 HBS3550 HBS430 HBS435 HBS440 HBS445 HBS450 HBS460 HBS470 HBS480 HBS4540 HBS4545 HBS4550 HBS4560 HBS4570 HBS4580 HBS545 HBS550 HBS560 HBS570 HBS580 HBS590 HBS5100 HBS5110 HBS5120 HBS640 HBS660 HBS670 HBS680 HBS690 HBS6100 HBS6110 HBS6120 HBS6130 HBS6140 HBS6150 HBS6160 HBS6180 HBS6200 HBS6220 HBS6240 HBS6260 HBS6280 HBS6300

L [mm]

b [mm]

A [mm]

16 20 25 30 20 25 30 35 40 45 50 30 35 40 45 50 60 70 80 40 45 50 60 70 80 45 50 60 70 80 90 100 110 120 40 60 70 80 90 100 110 120 130 140 150 160 180 200 220 240 260 280 300

10 15 20 25 10 14 18 18 18 24 24 18 18 24 30 30 35 40 40 24 30 30 35 40 40 24 24 30 35 40 45 50 55 60 35 30 40 40 50 50 60 60 60 75 75 75 75 75 75 75 75 75 75

7 10 12 15 6 11 12 17 22 21 26 12 17 16 15 20 25 30 40 16 15 20 25 30 40 21 26 30 35 40 45 50 55 60 8 30 30 40 40 50 50 60 70 65 75 85 105 125 145 165 185 205 225

pcs/pckg

500

d1 [mm]

8

TX40

500

200 500

200

200

10

TX40

100 200

100

12

TX50

100

code HBS880 HBS8100 HBS8120 HBS8140 HBS8160 HBS8180 HBS8200 HBS8220 HBS8240 HBS8260 HBS8280 HBS8300 HBS8320 HBS8340 HBS8360 HBS8380 HBS8400 HBS8440 HBS8500 HBS1080 HBS10100 HBS10120 HBS10140 HBS10160 HBS10180 HBS10200 HBS10220 HBS10240 HBS10260 HBS10280 HBS10300 HBS10320 HBS10340 HBS10360 HBS10380 HBS10400 HBS12160 HBS12200 HBS12240 HBS12280 HBS12320 HBS12360 HBS12400 HBS12440 HBS12480 HBS12520 HBS12560 HBS12600

L [mm]

b [mm]

A [mm]

80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 440 500 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 160 200 240 280 320 360 400 440 480 520 560 600

52 52 60 60 80 80 80 80 80 80 80 100 100 100 100 100 100 100 100 52 52 60 60 80 80 80 80 80 80 80 100 100 100 100 100 100 80 80 80 80 120 120 120 120 120 120 120 120

28 48 60 80 80 100 120 140 160 180 200 200 220 240 260 280 300 340 400 28 48 60 80 80 100 120 140 160 180 200 200 220 240 260 280 300 80 120 160 200 200 240 280 320 360 400 440 480

pcs/pckg

100

50

25

TURNED WASHER code

d1 HBS

D2 [mm]

pcs/pckg

HUS6 HUS8 HUS10 HUS12

6 8 10 12

20 25 32 37

100 50 50 25

HBS

35


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD

STEEL-WOOD

d1 [mm]

L [mm]

Vadm

d1 [mm]

L [mm]

Vadm

3

≥ 30

15 kg

3

≥ 16

19 kg

3,5

≥ 35

21 kg

3,5

≥ 20

26 kg

4

≥ 45

24 kg

4

≥ 30

34 kg

4,5

≥ 50

34 kg

4,5

≥ 40

43 kg

5

≥ 50

43 kg

5

≥ 45

53 kg

6

≥ 60

61 kg

6

≥ 40

77 kg

8

≥ 100

109 kg

8

≥ 80

136 kg

10

≥ 100

170 kg

10

≥ 80

213 kg

12

≥ 160

245 kg

12

≥ 160

306 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

16

20

25

30

35

40

45

50

60

70

80

3

15 kg

23 kg

30 kg

38 kg

-

-

-

-

-

-

-

3,5

-

18 kg

25 kg

32 kg

32 kg

32 kg

42 kg

42 kg

-

-

-

4

-

-

-

36 kg

36 kg

48 kg

60 kg

60 kg

70 kg

80 kg

80 kg

4,5

-

-

-

-

-

54 kg

68 kg

68 kg

79 kg

90 kg

90 kg

5

-

-

-

-

-

-

60 kg

60 kg

75 kg

88 kg

100 kg

6

-

-

-

-

-

105 kg

-

135 kg

90 kg

120 kg

120 kg

Length L [mm] d1 [mm]

80

90

100

110

120-140

150

300

320-400

>400

5

100 kg

113 kg

125 kg

138 kg

150 kg

-

160-200 220-280

-

-

-

-

-

6

120 kg

150 kg

150 kg

180 kg

180 kg

225 kg

225 kg

225 kg

225 kg

-

-

8

208 kg

-

208 kg

-

240 kg

-

320 kg

320 kg

400 kg

400 kg

400 kg

10

260 kg

-

260 kg

-

300 kg

-

400 kg

400 kg

500 kg

500 kg

-

12

-

-

-

-

-

-

480 kg

480 kg

-

720 kg

720 kg

HEAD PENETRATION Nadm SCREW

100 kg = 1kN

SCREW WITH WASHER

d1 [mm]

Nadm

EXAMPLE WOOD-WOOD HBS 8 x 200 mm

36

HBS

Nadm

3

14 kg

3

-

3,5

20 kg

3,5

-

4

26 kg

4

-

4,5

41 kg

4,5

-

5

50 kg

5

-

6

72 kg

6

200 kg

8

105 kg

8

313 kg

10

150 kg

10

461 kg

12

172 kg

12

548 kg

CALCULATION FORMULAS - SHEAR WOOD-WOOD Vadm = min { 0,4 · A · d1; 1,7 · d1 2 }

d1 [mm]

d1 [mm] A [mm] Vadm [kg] d1 = 8 mm A = 120 mm

DIN 1052-2:1988

STEEL-WOOD Vadm = 1,25 · 1,7 · d1 2

NOTE d1 [mm] Vadm [kg]

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 120 · 8 ; 1,7 · 82 } = min { 384 ; 109 } = 109 kg

• Allowable values in accordance with DIN 1052:1988. • The allowable shear values are calculated considering a fixing length of 8 d1 • IThe allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS dk 90°

ds

dk 90°

ds L

L

HBS SCREWS Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter

t1

s

D1 D2

b t1

d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

d1

D1

s

d2

d1

3 6,00 2,00 2,16 2,10 2,0

3,5 7,00 2,25 2,45 2,20 2,0

4 8,00 2,55 2,75 2,80 2,5

4,5 9,00 2,80 3,15 2,80 3,0

5 10,00 3,40 3,65 3,10 3,0

6 12,00 3,95 4,30 4,50 4,0

8 14,50 5,40 5,80 4,50 5,0

10 18,25 6,40 7,00 5,80 6,0

12 20,75 6,80 8,00 7,20 7,0

My,k [Nmm] 1435,4 2143,0 3032,6 4119,1 5417,2 9493,7 20057,5 35829,6 47965,9 fax,k [N/mm2] 11,7 11,7 11,7 11,7 11,7 11,7 11,7 11,7 11,7 fhead,k [N/mm2] 10,5 10,5 10,5 10,5 10,5 10,5 10,5 10,5 10,5 ftens,k [kN] 2,8 3,8 5,0 6,4 7,9 11,3 20,1 31,4 33,9

HUS TURNED WASHER Washer Screw Internal diameter External diameter Thickness

D2

b

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

HUS6 HBS Ø6 7,5 20,0 4,0

D1 [mm] D2 [mm] S [mm]

HUS8 HBS Ø8 8,5 25,0 5,0

HUS10 HBS Ø10 11,0 32,0 6,0

HUS12 HBS Ø12 14,0 37,0 7,5

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

3 15 9 36 21 9 9

3,5 18 11 42 25 11 11

4 20 12 48 28 12 12

4,5 23 14 54 32 14 14

5 25 15 60 35 15 15

6 30 18 72 42 18 18

[mm] [mm] [mm] [mm] [mm] [mm]

3 30 15 45 30 15 15

3,5 35 18 53 35 18 18

4 40 20 60 40 20 20

4,5 45 23 68 45 23 23

5 60 25 75 50 25 25

6 72 30 90 60 30 30

8 40 24 96 56 24 24

10 50 30 120 70 30 30

12 60 36 144 84 36 36

3 12 12 21 21 15 9

3,5 14 14 25 25 18 11

4 16 16 28 28 20 12

4,5 18 18 32 32 23 14

5 20 20 35 35 35 15

6 24 24 42 42 42 18

8 32 32 56 56 56 24

10 40 40 70 70 70 30

12 48 48 84 84 84 36

4,5 23 23 45 45 32 23

5 25 25 50 50 50 25

6 30 30 60 60 60 30

8 40 40 80 80 80 40

10 50 50 100 100 100 50

12 60 60 120 120 120 60

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

Direction of the grain

Means of connection

a1

10 120 50 150 100 50 50

stressed end -90° < α < 90°

12 144 60 180 120 60 60

3 15 15 30 30 21 15

a1

a1

3,5 18 18 35 35 25 18

discharged end 90° < α < 270°

a2 a2

a2 a2 a1

8 96 40 120 80 40 40

4 20 20 40 40 28 20

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE • The minimum distances are in accordance with the EN 1995:2008 standard, according to ETA-11/0030, considering a mass density of the wood elements equal to ρk ≤ 420 kg/m3. • In the case of OSB-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.85..

• In the case of steel-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.7.

HBS

37


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

panel-wood (1)

thin steel-wood plate (2)

thick steel-wood plate (3)

RV,k [kN] 0,31 0,37 0,45 0,52 0,42 0,53 0,62 0,68 0,73 0,79 0,79 0,69 0,78 0,82 0,93 0,99 0,99 0,99 0,99 0,97 1,06 1,15 1,21 1,21 1,21 1,08 1,18 1,28 1,45 1,45 1,45 1,45 1,45 1,45 1,45

RV,k [kN]

RV,k [kN]

RV,k [kN]

thread withdrawal (4) head penetration (5)

A

L b

SPLATE ≥ 3 mm SPLATE ≥ 3,5 mm SPLATE ≥ 4 mm SPLATE ≥ 4,5 mm

SPLATE ≤ 1,5 mm SPLATE ≤ 1,8 mm SPLATE ≤ 2 mm SPLATE ≤ 2,3 mm

SPAN = 12 mm

0,39 0,50 0,63 0,74 0,55 0,70 0,85 0,85 0,85 0,91 0,91 0,92 1,01 1,11 1,11 1,11 1,19 1,25 1,31 1,32 1,32 1,32 1,41 1,48 1,55 1,44 1,55 1,55 1,64 1,72 1,80 1,88 1,95 2,03 1,95

SPLATE ≥ 5 mm

5

0,27 0,46 0,53 0,61 0,54 0,60 0,68 0,72 0,72 0,72 0,72 0,76 0,84 0,84 0,84 0,84 0,84 0,84 0,84 1,06 1,06 1,06 1,06 1,06 1,06 1,16 1,20 1,20 1,20 1,20 1,20 1,20 1,20 1,20 1,20

SPLATE ≤ 2,5 mm

4,5

SPAN = 12 mm

4

A [mm] 7 10 12 15 10 11 12 17 22 21 26 14 19 16 21 26 30 35 40 16 21 26 30 35 40 20 21 26 30 35 40 45 50 55 70

SPAN = 15 mm

3,5

b [mm] 10 15 20 25 10 14 18 18 18 24 24 16 16 24 24 24 30 35 40 24 24 24 30 35 40 20 24 24 30 35 40 45 50 55 50

SPAN = 15 mm

3

L [mm] 16 (6) 20 25 30 20 (6) 25 30 35 40 45 50 30 35 40 45 50 60 70 80 40 45 50 60 70 80 40 45 50 60 70 80 90 100 110 120

SPAN = 12 mm

d1

d1 [mm]

0,60 0,73 0,89 0,95 0,80 0,96 1,12 1,12 1,12 1,18 1,18 1,25 1,35 1,45 1,45 1,45 1,52 1,59 1,65 1,73 1,73 1,73 1,82 1,89 1,96 1,92 2,03 2,03 2,13 2,21 2,28 2,36 2,44 2,52 2,44

Rax,k [kN] 0,37 0,56 0,75 0,94 0,44 0,61 0,79 0,79 0,79 1,05 1,05 0,80 0,80 1,20 1,20 1,20 1,50 1,75 2,00 1,35 1,35 1,35 1,69 1,97 2,25 1,25 1,50 1,50 1,87 2,19 2,50 2,81 3,12 3,44 3,12

Rhead,k [kN] 0,40 0,40 0,40 0,40 0,55 0,55 0,55 0,55 0,55 0,55 0,55 0,72 0,72 0,72 0,72 0,72 0,72 0,72 0,72 0,91 0,91 0,91 0,91 0,91 0,91 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12

GENERAL PRINCIPLES • Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. • For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. • Values were calculated considering the threaded part as being completely inserted into the wood.

38

HBS

• Sizing and verification of the wooden elements, panels and steel plates must be done separately. • The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. • For different calculation methods, the myProject software is available free of charge. (www.rothoblaas.com) • The characteristic resistances were calculated using solid wood or glulam. In the case of joints with X-Lam elements, the resistance values may be different and should be calculated on the basis of the characteristics of the panel and the connection configuration.


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

panel-wood (1)

thin steel-wood plate (2)

thick steel-wood plate (3)

RV,k [kN] 0,87 1,52 1,76 1,86 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06

RV,k [kN]

RV,k [kN]

RV,k [kN]

thread withdrawal (4) head penetration (5)

A

L b

A [mm] 8 15 30 30 40 40 50 50 60 70 65 75 85 105 125 145 165 185 205 225

1,35 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55 1,55

1,62 2,05 2,22 2,41 2,41 2,59 2,59 2,78 2,78 2,78 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06

SPLATE ≥ 6 mm

b [mm] 35 45 30 40 40 50 50 60 60 60 75 75 75 75 75 75 75 75 75 75

SPLATE ≤ 3 mm

6

L [mm] 40 50 60 70 80 90 100 110 120 130 140 150 160 180 200 220 240 260 280 300

SPAN = 15 mm

d1

d1 [mm]

2,58 3,13 2,90 3,09 3,09 3,28 3,28 3,47 3,47 3,47 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75

Rax,k [kN] 2,62 3,37 2,25 3,00 3,00 3,75 3,75 4,50 4,50 4,50 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62

Rhead,k [kN] 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61

NOTE (1)

(2)

(3)

(4)

The shear characteristic resistances are calculated considering an OSB panel or particle board with a SPAN thickness. The shear characteristic resistances are calculated considering the case of a thin plate (SPLATE ≤ 0,5 d1). The shear characteristic resistances are calculated considering the case of a thick plate (SPLATE ≥ d1). The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b.

(5)

(6)

The axial resistance to head penetration was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration. This screw has not been granted the CE marking.

HBS

39


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

wood-wood with washer

thin steel-wood plate (1)

thick steel-wood plate (2)

RV,k [kN] 0,87 1,52 1,76 1,86 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,57 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25

RV,k [kN] 0,87 1,64 1,92 2,21 2,41 2,59 2,59 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 2,78 3,28 3,96 4,16 4,16 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41 4,41

RV,k [kN]

RV,k [kN]

thread (4) head penetration withdrawal (3) head penetration with washer (4)

A

L b

1,62 2,05 2,22 2,41 2,41 2,59 2,59 2,78 2,78 2,78 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,06 3,96 3,96 4,16 4,16 4,66 4,66 4,66 4,66 4,66 4,66 4,66 5,16 5,16 5,16 5,16 5,16 5,16 5,16 5,16

SPLATE ≥ 6 mm

A [mm] 8 15 30 30 40 40 50 50 60 70 65 75 85 105 125 145 165 185 205 225 28 48 60 80 80 100 120 140 160 180 200 200 220 240 260 280 300 340 400

SPLATE ≥ 8 mm

8

b [mm] 35 45 30 40 40 50 50 60 60 60 75 75 75 75 75 75 75 75 75 75 52 52 60 60 80 80 80 80 80 80 80 100 100 100 100 100 100 100 100

SPLATE ≤ 4 mm

6

L [mm] 40 50 60 70 80 90 100 110 120 130 140 150 160 180 200 220 240 260 280 300 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 440 500

SPLATE ≤ 3 mm

d1

d1 [mm]

2,58 3,13 2,90 3,09 3,09 3,28 3,28 3,47 3,47 3,47 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75 3,75 5,06 5,06 5,26 5,26 5,76 5,76 5,76 5,76 5,76 5,76 5,76 6,26 6,26 6,26 6,26 6,26 6,26 6,26 6,26

Rax,k [kN] 2,62 3,37 2,25 3,00 3,00 3,75 3,75 4,50 4,50 4,50 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,62 5,20 5,20 6,00 6,00 8,00 8,00 8,00 8,00 8,00 8,00 8,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00

Rhead,k [kN] 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36

Rhead,k [kN] 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 4,49 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01

GENERAL PRINCIPLES • Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

The coefficients γm and kmod should be taken based according to the current regulations used for the calculation. • For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. • Values were calculated considering the threaded part as being completely inserted into the wood.

40

HBS

• Sizing and verification of the wooden elements, panels and steel plates must be done separately. • The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. • For different calculation methods, the myProject software is available free of charge. (www.rothoblaas.com) • The characteristic resistances were calculated using solid wood or glulam. In the case of joints with X-Lam elements, the resistance values may be different and should be calculated on the basis of the characteristics of the panel and the connection configuration.


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

wood-wood with washer

thin steel-wood plate (1)

thick steel-wood plate (2)

RV,k [kN] 3,60 4,17 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 4,78 5,95 5,95 5,95 5,95 5,95 5,95 5,95 5,95 5,95 5,95 5,95 5,95

RV,k [kN] 4,29 4,86 5,72 5,72 6,35 6,35 6,35 6,35 6,35 6,35 6,35 6,72 6,72 6,72 6,72 6,72 6,72 7,74 7,74 7,74 7,74 8,58 8,58 8,58 8,58 8,58 8,58 8,58 8,58

RV,k [kN]

RV,k [kN]

thread (4) head penetration withdrawal (3) head penetration with washer (4)

A

L b

4,69 5,47 5,72 5,72 6,35 6,35 6,35 6,35 6,35 6,35 6,35 6,97 6,97 6,97 6,97 6,97 6,97 7,74 7,74 7,74 7,74 9,24 9,24 9,24 9,24 9,24 9,24 9,24 9,24

SPLATE ≥ 10 mm

A [mm] 28 48 60 80 80 100 120 140 160 180 200 200 220 240 260 280 300 80 120 160 200 200 240 280 320 360 400 440 480

SPLATE ≥ 12 mm

12

b [mm] 52 52 60 60 80 80 80 80 80 80 80 100 100 100 100 100 100 80 80 80 80 120 120 120 120 120 120 120 120

SPLATE ≤ 6 mm

10

L [mm] 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 160 200 240 280 320 360 400 440 480 520 560 600

SPLATE ≤ 5 mm

d1

d1 [mm]

6,86 7,07 7,31 7,31 7,94 7,94 7,94 7,94 7,94 7,94 7,94 8,56 8,56 8,56 8,56 8,56 8,56 9,71 9,71 9,71 9,71 11,21 11,21 11,21 11,21 11,21 11,21 11,21 11,21

Rax,k [kN] 6,50 6,50 7,50 7,50 10,00 10,00 10,00 10,00 10,00 10,00 10,00 12,50 12,50 12,50 12,50 12,50 12,50 12,00 12,00 12,00 12,00 17,99 17,99 17,99 17,99 17,99 17,99 17,99 17,99

Rhead,k [kN] 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 3,73 4,83 4,83 4,83 4,83 4,83 4,83 4,83 4,83 4,83 4,83 4,83 4,83

Rhead,k [kN] 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 11,48 15,35 15,35 15,35 15,35 15,35 15,35 15,35 15,35 15,35 15,35 15,35 15,35

NOTE (1)

(2)

(3)

The shear characteristics resistances are calculated considering the case of a thin plate (SPLATE ≤ 0,5 d1). The shear characteristic resistances are calculated considering the case of a thick plate (SPLATE ≥ d1). The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b.

(4)

The axial resistance to head penetration, with and without a washer, was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration.

HBS

41


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Calculation example: valley jack rafter joint CONNECTION WOOD-WOOD / SINGLE SHEAR ELEMENT 1

ELEMENT 2

1

B1 = 120 mm H1 = 160 mm Slope 30% (16,7°) Wood GL24h

1

2

2

B2 = 160 mm H2 = 240 mm Slope 21% (12,0°) Wood GL24h

PROJECT DATA

SCREW SELECTION

CONNECTION GEOMETRY

Fv,Rd = 7,17 kN Service class = 1 Load duration = short

HBS = 10 x 180 mm Pre-bored hole = no Washer = no

t1 = 60 mm α1 = 73,3° (90° - 16,7°) t2 = 120 mm (fixing length in element 2) α2 = 78,0° (90° - 12,0°)

SHEAR RESISTANCE CALCULATION (EN 1995:2008 e ETA-11/0030) d1 fh,1,k fh,2,k β

= 10,0 mm = 15,62 N/mm2 = 15,62 N/mm2 = 1,00

My,k

= 35829,7 Nmm

Rax,Rk = min {resistance to thread withdrawal; resistance to head penetration} = min {Rax,Rk ; Rhead,Rk} = 3,74 kN Rax,Rk /4 = 0,93 kN (cable effect) = 9,37 kN = 18,74 kN = 7,30 kN = 4,81 kN = 7,80 kN = 4,78 kN

Rv,Rk = 4,78 kN

EN 1995:2008

Italia - NTC 2008

Minimum number of screws Fv,Rd / Rv,Rd = 2,17

Minimum number of screws Fv,Rd / Rv,Rd = 2,50

kmod = 0,9 γm = 1,3 Rv,Rd = 3,31 kN

3 nef screws are usedi

nef,SHEAR nef,TRAZIONE

kmod = 0,9 γm = 1,5 Rv,Rd = 2,87 kN

3 (screws perpendicular to the grain) 3 0,9 = 2,69

Recalculating the shear resistance, for the cable effect, a tensile strength for the individual screws is assumed at: Rax,Rk = 3,74 · 2,69 / 3 = 3,35 kN (head penetration) Rax,Rk/ 4 = 0,84 kN (cable effect) Individual screw shear resistance: Rv,Rk = 4,68 kN

EN 1995:2008

Italia - NTC 2008

Connection shear resistance: Rv,Rd = 3,24 x 3 = 9,73 kN > 7,17 kN OK

Connection shear resistance:

Rv,Rd = 3,24 kN

42

HBS

Rv,Rd = 2,81 kN

Rv,Rd = 2,81 x 3 = 8,43 kN > 7,17 kN OK


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Calculation example: valley jack rafter joint with myProject CONNECTION WOOD-WOOD / SINGLE SHEAR ELEMENT 1 B1 = 120 mm H1 = 160 mm Slope 30% (16,7°) Wood GL24h

Download free at www.rothoblaas.com

ELEMENT 2

1

1

2

2

B2 = 160 mm H2 = 240 mm Slope 21% (12,0°) Wood GL24h

PROJECT DATA

SCREW SELECTION

CONNECTION GEOMETRY

Fv,Rd = 7,17 kN Service class = 1 Load duration = short

HBS = 10 x 180 mm Pre-bored hole = no Washer = no

t1 = 60 mm α1 = 73,3° (90° - 16,7°) t2 = 120 mm α2 = 78,0° (90° - 12,0°)

SHEAR RESISTANCE CALCULATION WITH myProject SOFTWARE (EN 1995:2008 e ETA-11/0030)

CALCULATION REPORT

HBS

43


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

HZB

ETA 11/0030

HBS bound screws Carbon steel with white galvanic zinc coating

FAST INSTALLATION Quick and precise installation

SERIAL ASSEMBLY Fast and safe execution thanks to the special binding

SPEED AND QUALITY The excellent mechanical and geometric performance of the HBS screw is ideal for fast, serial assembly in the bound version

HBS COLLATED Highly ductile and resistant steel with special asymmetric “umbrella” thread and very sharp underhead ribs

44

HZB

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

L

4

TX20

b d1

4,5

TX20

A

5,0

TX25

code HZB430 HZB435 HZB440 HZB445 HZB450 HZB4550 HZB4555 HZB540 HZB545 HZB550 HZB560 HZB565 HZB570 HZB580

L [mm]

b [mm]

A [mm]

pcs/pckg

30 35 40 45 50 50 55 40 45 50 60 65 70 80

16 16 24 24 24 24 30 20 24 24 30 35 35 40

14 21 16 21 26 26 25 20 21 26 30 30 35 40

3000 2000 2000 2000 1500 1500 1500 1500 1500 1250 1250 1250 625 625

dHZB [mm]

lengths

pcs/pckg

4 4,5 - 5 4 4,5 - 5

25-50 40-80 25-50 40-80

1 1 1 1

Tools code HH3360 HH3380 HH3352 HH3338

description automatic 18v cordless screwdriver powered screwdriver

HZB

45


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

TBS

ETA 11/0030

Large head screw

Carbon steel with white galvanic zinc coating

PACKAGING Box + CE paper + BIT

SPECIAL STEEL Highly ductile (moves with the wood) and resistant steel (fy,k = 1000 N/mm2)

SPECIAL THREADING Asymmetric “umbrella” threading for better wood penetration

ECO-FRIENDLY Trivalent Cr3+ chrome coating, replacing hexavalent chrome Cr6

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based panels. Service classes 1 and 2.

46

TBS

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

JOINT SEAL The large head guarantees excellent tensile strength which means the use of additional lateral fastening systems can be avoided

JOINT CLOSURE The large head oďŹ&#x20AC;ers tight joint closure. The diameter of the head is optimised based on the length of the thread

JOINT STABILITY The large head guarantees excellent penetration resistance and allows for stabilisation of joints subject to variations in the dimensions of the wood

TBS

47


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Applications Fastening walls at the corners of the structure in X-Lam with excellent joint closure Fastening walls at the corners of the frame structure with excellent joint closure

Fastening of plaster fibre panels

Range

600 1 2 3 4 5 6 7

500

400

200

100

ø6

TX3

ø8

TX40

ø10

TX40

48

TBS

42 43 44 45 46 47 48 49 5 0 51 52 53 54 55 56 57 58 59 6 0

ideal for plates

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

300

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

The large head offers excellent grip capacity and makes it possible to obtain greater thread length with respect to a screw with a classic head. The size of the head diameter (dk) is calculated according to the thread length to obtain the perfect proportion between head penetration resistance and the thread grip capacity. In this way, the risk of stripping the screw is avoided. 8mm screws with a length between 40 and 80mm are ideal for fastening to steel plates.


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

dk

dk [mm]

6

TX30

L b

15,5

d1

8

TX40 A

19

10

TX40

25

code TBS680 TBS6100 TBS6120 TBS6140 TBS6160 TBS6180 TBS6200 TBS6220 TBS6240 TBS6260 TBS6280 TBS6300 TBS840 TBS860 TBS880 TBS8100 TBS8120 TBS8140 TBS8160 TBS8180 TBS8200 TBS8220 TBS8240 TBS8260 TBS8280 TBS8300 TBS8320 TBS8340 TBS8360 TBS8380 TBS8400 TBS10160 TBS10180 TBS10200 TBS10220 TBS10240 TBS10260 TBS10280 TBS10300 TBS10320 TBS10340 TBS10360 TBS10380 TBS10400

L [mm]

b [mm]

A [mm]

80 100 120 140 160 180 200 220 240 260 280 300 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 160 180 200 220 240 260 280 300 320 340 360 380 400

50 60 75 75 75 75 75 100 100 100 100 100 32 52 52 80 80 80 100 100 100 100 100 100 100 100 100 100 100 100 100 80 80 100 100 100 100 100 100 100 100 100 100 100

30 40 45 65 85 105 125 120 140 160 180 200 8 10 28 20 40 60 60 80 100 120 140 160 180 200 220 240 260 280 300 80 100 100 120 140 160 180 200 220 240 260 280 300

pcs/pckg

50

50

50

TBS

49


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

6

≥ 80

61 kg

8

≥ 120

109 kg

10

≥ 160

170 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

40

60

80

100

120 - 140

160

180

200

220 - 300

320-400

6

-

-

150 kg

180 kg

225 kg

225 kg

225 kg

225 kg

300 kg

-

8

128 kg

208 kg

208 kg

320 kg

320 kg

400 kg

400 kg

400 kg

400 kg

400 kg

10

-

-

-

-

-

400 kg

400 kg

500 kg

500 kg

500 kg

HEAD PENETRATION Nadm d1 [mm]

Nadm

6

120 kg

8

181 kg

10

281 kg

CALCULATION FORMULAS - SHEAR WOOD-WOOD Vadm = min { 0,4 · A · d1; 1,7 · d1 2 }

EXAMPLE WOOD-WOOD TBS 6 x 160 mm

DIN 1052-2:1988

d1 [mm] A [mm] Vadm [kg]

d1 = 6 mm A = 85 mm

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 85 · 6 ; 1,7 · 62 } = min { 204 ; 61 } = 61 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable shear values are calculated considering a fixing length of 8 d1.

50

TBS

• The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS TBS SCREWS Nominal diameter Head diameter Tip diameter Shank diameter Pre-bored hole diameter

dk

L b

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

d1

d1 [mm] dK [mm] d2 [mm] dS [mm] dV [mm]

6 15,50 3,95 4,30 4,0

8 19,00 5,40 5,80 5,0

10 25,00 6,40 7,00 6,0

My,k [Nmm] fax,k [N/mm2] fhead,k [N/mm2] ftens,k [kN]

9493,7 11,7 10,5 11,3

20057,5 11,7 10,5 20,1

35829,6 11,7 10,5 31,4

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

6 30 18 72 42 18 18

[mm] [mm] [mm] [mm] [mm] [mm]

8 40 24 96 56 24 24

10 50 30 120 70 30 30

6 24 24 42 42 42 18

8 32 32 56 56 56 24

10 40 40 70 70 70 30

8 40 40 80 80 80 40

10 50 50 100 100 100 50

SCREWS INSERTED WITHOUT PRE-BORED HOLES [mm] [mm] [mm] [mm] [mm] [mm]

6 72 30 90 60 30 30

Direction of the grain

Means of connection

a1 a2 a3,t a3,c a4,t a4,c

8 96 40 120 80 40 40

stressed end -90° < α < 90°

a1

6 30 30 60 60 60 30 discharged end 90° < α < 270°

a2 a2

a2 a2 a1

10 120 50 150 100 50 50

a1

a1

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE • The minimum distances are in accordance with the EN 1995:2008 standard, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3.

• In the case of OSB-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.85.

TBS

51


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SHEAR dk

geometry

wood-wood

ACCESSORIES

TRACTION panel-wood

(1)

thread withdrawal

(2)

head penetration

A

L b d1

8

10

A [mm] 30 40 45 65 85 105 125 120 140 160 180 200 8 10 28 20 40 60 60 80 100 120 140 160 180 200 220 240 260 280 300 80 100 100 120 140 160 180 200 220 240 260 280 300

RV,k [kN] 2,13 2,33 2,33 2,33 2,33 2,33 2,33 2,33 2,33 2,33 2,33 2,33 1,07 1,34 2,99 2,67 3,38 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 3,67 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60 5,60

RV,k [kN]

S PAN = 50 mm

b [mm] 50 60 75 75 75 75 75 100 100 100 100 100 32 52 52 80 80 80 100 100 100 100 100 100 100 100 100 100 100 100 100 80 80 100 100 100 100 100 100 100 100 100 100 100

S PAN = 65 mm

6

L [mm] 80 100 120 140 160 180 200 220 240 260 280 300 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 160 180 200 220 240 260 280 300 320 340 360 380 400

S PAN = 80 mm

d1 [mm]

2,12 2,63 2,63 2,63 2,63 2,63 2,63 2,63 2,63 2,63 2,63 2,63 2,00 3,19 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 4,09 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19 6,19

Rax,k [kN] 3,75 4,50 5,62 5,62 5,62 5,62 5,62 7,50 7,50 7,50 7,50 7,50 3,20 5,20 5,20 8,00 8,00 8,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 12,50 12,50 12,50 12,50 12,50 12,50 12,50 12,50 12,50 12,50 12,50

Rhead,k [kN] 2,69 2,69 2,69 2,69 2,69 2,69 2,69 2,69 2,69 2,69 2,69 2,69 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 4,05 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01 7,01

GENERAL PRINCIPLES • Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values: The coefficients γm and kmod should be taken according to the current regulations used for the calculation. • For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030.. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. • Values were calculated considering the threaded part as being completely inserted into the wood. • Sizing and verification of the wooden elements and panels must be done separately. • The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. • For different calculation methods, the myProject software is available free of charge (www.rothoblaas.com) • The characteristic resistances were calculated using solid wood or glulam. In the case of joints with X-Lam elements, the resistance values may be different and should be calculated on the basis of the characteristics of the panel and the connection configuration.

NOTE (1) (2)

52

The shear characteristic resistances are calculated considering a particle board with a SPAN thickness. The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b.

TBS


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Calculation example: rafter - purlin joint with myProject CONNECTION WOOD-WOOD / SINGLE SHEAR ELEMENT 1

Download free at www.rothoblaas.com

ELEMENT 2

1 1

B1 = 120 mm H1 = 160 mm Slope 30% (16,7°) Wood GL24h

2

B2 = 200 mm H2 = 240 mm Slope 0% (0°) Wood GL24h 2

PROJECT DATA

SCREW SELECTION

CONNECTION GEOMETRY

Fv,Rd = 1,89 kN Service class = 1 Load duration = short

TBS = 8 x 260 mm Pre-bored hole = no

t1 = 160 mm α1 = 0° t2 = 100 mm (fixing length in element 2) α2 = 90°

SHEAR RESISTANCE CALCULATION WITH myProject SOFTWARE (EN 1995:2008 e ETA-11/0030) d1 = 8,0 mm fh,1,k = 16,70 N/mm2 fh,2,k = 16,70 N/mm2 β = 1,00 My,k = 20057,5 Nmm

Rax,Rk = min {resistance to thread withdrawal; resistance to head penetration} = min {Rax,Rk ; Rhead,Rk} = 4,05 kN Rax,Rk / 4 = 1,01 kN (cable effect)

Rv,Rk = 3,67 kN

EN 1995:2008

kmod = 0,9 γm = 1,3 Rv,Rd = 2,54 kN > 1,89 kN OK

Italia - NTC 2008

kmod = 0,9 γm = 1,5 Rv,Rd = 2,20 kN > 1,89 kN OK

TBS

53


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

HTS

Countersunk total thread screw Carbon steel with white galvanic zinc coating

PACKAGING Box + BIT

FINE THREAD Fine thread for the utmost screwing precision, also on particle board

TOTAL THREAD Total thread (85% of the length) with a smooth under head, for maximum coupling eďŹ&#x192;ciency

ECO-FRIENDLY Trivalent Cr3+ chrome coating, replacing hexavalent chrome Cr6

FIELDS OF USE Particle board, solid-wood, glulam, X-Lam, LVL, wood-based-panel joints. Service classes 1 and 2

54

HTS

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

METAL HINGES The total thread and special head geometry are ideal for fastening metal hinges when building furniture

PRECISE COUPLING The reduced length total thread (85%) and the fine thread are ideal for precise fastening of thin panels

Range Ideal for usage with single bit, easily exchanged in the bit holder (two TX measures for the entire range) to obtain the utmost precision and ease of screwing. The self-perforating unnotched tip increases the initial grip of the screw. The total thread with smooth under head allows for the closure of the pieces. 100

80

60

40

20

ø3

ø3,5 TX10

ø4

ø4,5

ø5

TX20

HTS

55


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

3

Lb

TX10

d1

3,5 TX10

4

TX20

4,5

TX20

5

TX20

code HTS312 HTS316 HTS320 HTS325 HTS330 HTS3516 HTS3520 HTS3525 HTS3530 HTS3535 HTS3540 HTS420 HTS425 HTS430 HTS435 HTS440 HTS445 HTS450 HTS4530 HTS4535 HTS4540 HTS4545 HTS4550 HTS530 HTS535 HTS540 HTS545 HTS550 HTS560 HTS570

L [mm]

b [mm]

12 16 20 25 30 16 20 25 30 35 40 20 25 30 35 40 45 50 30 35 40 45 50 30 35 40 45 50 60 70

10 13 16 21 26 13 16 21 25 30 34 16 21 25 30 34 39 43 25 30 34 38 43 25 30 34 38 43 51 60

pcs/pckg

500

500

200 500

200

200

200

100

Geometry dk

Lb d2

56

HTS

d1

HTS SCREWS Nominal diameter Head diameter Tip diameter Pre-bored hole diameter

d1 [mm] dK [mm] d2 [mm] dV [mm]

3 6,00 2,00 2,0

3,5 7,00 2,20 2,0

4 8,00 2,50 2,5

4,5 8,80 2,80 3,0

5 9,70 3,20 3,0


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD (1) d1 [mm]

L [mm]

Vadm

3

≥ 30

12 kg

3,5

≥ 35

17 kg

4

≥ 40

21 kg

4,5

≥ 45

27 kg

5

≥ 60

40 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

12

16

20

25

30

35

40

45

50

60

70

3

15 kg

20 kg

24 kg

32 kg

39 kg

-

-

-

-

-

-

3,5

-

23 kg

28 kg

37 kg

44 kg

53 kg

60 kg

-

-

-

-

4

-

-

32 kg

42 kg

50 kg

60 kg

68 kg

78 kg

86 kg

-

-

4,5

-

-

-

-

56 kg

68 kg

77 kg

86 kg

97 kg

-

-

5

-

-

-

-

63 kg

75 kg

85 kg

95 kg

108 kg

128 kg

150 kg

HEAD PENETRATION Nadm d1 [mm]

Nadm

3

14 kg

3,5

20 kg

4

26 kg

4,5

39 kg

5

47 kg

CALCULATION FORMULAS - SHEAR

DIN 1052-2:1988

WOOD-WOOD Vadm = min { 0,4 · A · d1 ; 1,7 · d1 2 } d1 [mm] A [mm] Vadm [kg]

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

(1)

The allowable wood-wood shear resistance values were calculated on the basis of a fastenable thickness of L/3.

HTS

57


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

SHS

Small head screw Carbon steel with white galvanic zinc coating

INVISIBLE HEAD Hidden 60째 head for easy insertion in small spaces without creating openings in the wood

FASTENING ON TONGUE AND GROOVE BOARDS Ideal for usage in the spaces to fasten beading.

OPTIMISED GEOMETRY The smaller head and high-performing thread guarantee perfect insertion of the screws in small thicknesses, avoiding splitting

Codes and dimensions d1 [mm]

3,5

TX10

SMALL THICKNESSES Ideal for fastening beading, glazing beads, or small wood elements

58

SHS

code SHS3530 SHS3540 SHS3550

L [mm]

b [mm]

A [mm]

pcs/pckg

30 40 50

20 26 34

10 14 16

500

Also available in stainless steel AISI410 (3.5 x 40 mm) see OUTDOOR chapter A = fastening thickness


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

Carpenter statics

ACCESSORIES ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

3,5

L [mm]

Vadm

30

14 kg

40

20 kg

50

21 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

30

40

50

3,5

35 kg

46 kg

60 kg

HEAD PENETRATION Nadm SCREW d1 [mm]

Nadm

3,5

17 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

Geometry dk 60°

L

SHS SCREWS Nominal diameter Head diameter

d1 [mm] dK [mm]

3,50 5,75

b d1

SHS

59


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

LBS

ETA 11/0030

Round-head screw with cylindrical under head Carbon steel with white galvanic zinc coating

SPECIAL HEAD Round head with cylindrical under head, ideal for fastening metal elements

TOTAL THREAD The total thread allows for versatile and effective fastening

AESTHETICS The rounded head provides visible fastenings that are pleasing to the eye, both on metal plates and directly on wood

Codes and dimensions d1 [mm]

5

TX20

METAL PLATES The geometry of the head was carefully designed for fastening to metal plates and corners. The cylindrical under head creates an interlocking effect that improves the static performance of the joint

60

LBS

code PF603525 PF603540 PF603550 PF603560 PF603570

L [mm]

b [mm]

25 40 50 60 70

21 36 46 56 66

L b d1

pcs/pckg 500 200


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm STEEL-WOOD d1 [mm]

L [mm]

Vadm

5

≥ 25

53 kg

d1 [mm]

L [mm]

Vadm

5

≥ 60

40 kg

WOOD-WOOD (1)

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

25

40

50

60

70

5

53 kg

90 kg

115 kg

140 kg

165 kg

CALCULATION FORMULAS - SHEAR DIN 1052-2:1988 WOOD-WOOD

STEEL-WOOD

Vadm = min { 0,4 · A · d1 ; 1,7 · d1 } 2

d1 [mm] A [mm] Vadm [kg]

Vadm = 1,25 · 1,7 · d1 2

d1 [mm] Vadm [kg]

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

(1)

The allowable wood-wood shear resistance values were calculated on the basis of an fastenable thickness of 20 mm.

LBS

61


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS LBS SCREWS Nominal diameter Head diameter Tip diameter Underhead diameter Head thickness Pre-bored hole diameter

dk t1

duk

L b d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

d1

d1 [mm] dK [mm] d2 [mm] dUK [mm] t1 [mm] dV [mm]

5 7,80 3,00 4,90 2,40 3,0

My,k [Nmm] fax,k [N/mm2] f head,k [N/mm2] f tens,k [kN]

5417,2 11,7 10,5 7,9

MINIMUM DISTANCES FOR SHEAR LOADS STEEL-WOOD

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

5 18 11 60 35 15 15

[mm] [mm] [mm] [mm] [mm] [mm]

5 42 18 75 50 25 25

5 14 14 35 35 35 15 SCREWS INSERTED WITHOUT PRE-BORED HOLES

a1 a2 a3,t a3,c a4,t a4,c

Direction of the grain

Means of connection

stressed end -90° < α < 90°

a1

a1

a1

a3,t

• The minimum distances are in accordance with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3. • In the case of wood-wood joints, the minimum spacings (a1, a2) must be multiplied by a coefficient of 1.5.

LBS

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t

NOTE

62

discharged end 90° < α < 270°

a2 a2

a2 a2 a1

5 18 18 50 50 50 25

a3,c

a4,c


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR STEEL - WOOD (1)

geometry sPLATE L b d1

d1 [mm]

5

L [mm] 25 40 50 60 70

b [mm] 21 36 46 56 66

SPLATE = 1,5 mm 0,90 1,48 1,86 2,05 2,20

SPLATE = 2 mm 0,88 1,46 1,85 2,05 2,20

RV,k [kN] SPLATE = 3 mm 0,98 1,58 1,92 2,15 2,30

SPLATE = 2,5 mm 0,87 1,44 1,83 2,05 2,20

SHEAR WOOD - WOOD

SPLATE = 4 mm 1,23 1,88 2,12 2,34 2,50

SPLATE = 5 mm 1,47 2,15 2,35 2,52 2,68

SPLATE = 6 mm 1,43 2,11 2,35 2,50 2,66

TRACTION

geometry

thread withdrawal (2) A

L b d1

d1 [mm]

5

L [mm] 25 40 50 60 70

b [mm] 21 36 46 56 66

A [mm] 15 20 25 30

RV,k [kN] 1,00 1,10 1,23 1,34

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

• • • •

Rax,k [kN] 1,31 2,25 2,87 3,50 4,12

The shear characteristic resistances are calculated for plates with thickness = SPLATE, considering the case of a thin plate (SPLATE ≤ 0,5 d1), intermediate plate (0,5 d1 < SPLATE < d1) or thick (SPLATE ≥ d1) . (2) The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b.

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Sizing and verification of the wooden elements and steel plates must be done separately. The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained.

LBS

63


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

DRS

Wood/wood spacer screw Carbon steel with white galvanic zinc coating

DOUBLE THREAD, DIFFERENTIATED Underhead thread with specially designed geometry to create and regulate a space between the fastenable thicknesses

SELF-PERFORATING TIP Self-perforating tip with special geometry to avoid splitting in the elements to be separated

VENTILATED FACADES The diďŹ&#x20AC;erentiated double thread is ideal for regulating the position of the battens on the facade and to create proper verticality. Ideal for levelling panelling, battens, ceilings and paving

Codes and dimensions d1 [mm]

6

TX30

SPEED AND PRECISION Thanks to the possibility to create a distance between pieces of wood, it is possible to create versatile fastenings quickly and safely, without the need for any interposed element

64

DRS

code DRS660S DRS680S DRS6100S DRS6120S DRS6145S

L [mm]

b [mm]

pcs/pckg

60 80 100 120 145

30 44 56 66 66

100

Long or intermediate lengths available upon request


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry dk b1

d3 ds

L b d2

DRS SCREWS Nominal diameter Head diameter Tip diameter Shank diameter Underhead thread diameter Length head + rings

d1 [mm] dK [mm] d2 [mm] ds [mm] d3 [mm] b1 [mm]

6 12,00 3,90 4,35 6,80 21,0

d1

Installation

Select the screw length so that the thread is completely inserted in the wood support.

Position the DRS screw.

Attach the batten, screwing in the screw so that the head is flush with the wood.

Loosen the screw based on the desired distance.

Adjust the other screws in a similar manner to level the structure.

DRS

65


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

DRT

Wood/brickwork spacer screw Carbon steel with white galvanic zinc coating

DOUBLE THREAD, DIFFERENTIATED Underhead thread with specially designed geometry to create and regulate a space between the fastenable thicknesses

FASTENING TO BRICKWORK Underhead thread with a greater diameter to allow fastening to brickwork through the addition of a plastic screw anchor

SPEED AND PRECISION Thanks to the possibility to create space between the wood pieces, versatile fastenings can be created quickly and precisely without the need for any intermediate element. When using with cement or brickwork, a plastic screw anchor must be used

LEVEL AND ADJUST The diďŹ&#x20AC;erentiated double thread is ideal for adjusting the position of wood elements on brickwork supports (using the plastic screw anchor) and to create the proper verticality. Ideal for levelling panels on walls, paving and ceilings

66

DRT

Codes and dimensions d1 [mm]

6

TX30

code DRT680 DRT6100 DRT6120 DRT6145

L [mm]

b [mm]

pcs/pckg

80 100 120 145

50 60 70 70

100

description

L [mm]

pcs/pckg

NDK nylon screw anchor

40

100

Long or intermediate lengths available upon request d0 [mm]

8

code FE210219

For fastening on cement or brickwork, use of the NDK nylon screw anchor is recommended


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry dk b1

d3 ds

L b d2

d1

DRT SCREWS Nominal diameter Head diameter Tip diameter Shank diameter Underhead thread diameter Diameter of concrete/brickwork opening Length head + rings

d1 [mm] dK [mm] d2 [mm] ds [mm] d3 [mm] dV [mm] b1 [mm]

6 12,50 3,90 4,35 9,90 8,0 22,0

Installation

Select the screw length so that the thread is completely inserted in the concrete/brickwork support.

Drill the elements with a dV= 8,0 mm diameter.

Place the NDK nylon screw anchor inside the support.

Position the DRT screw.

Attach the batten, screwing in the screw so that the head is flush with the wood.

Loosen the screw based on the desired distance.

Adjust the other screws in a similar manner to level the structure.

DRT

67


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SCH

ETA 11/0030

Countersunk screw Carbon steel with yellow galvanic zinc coating

LONGER THREAD Greater thread length (60%) for excellent joint closure and versatility

HIGH-PERFORMANCE STEEL Highly ductile and resistant steel (fy,k = 1000 N/mm2)

SPECIAL THREADING Asymmetric â&#x20AC;&#x153;umbrella threading for better wood penetration

YELLOW GALVANIC ZINC COATING Yellow coating to limit visibility on wood

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based panels. Service classes 1 and 2

68

SCH

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

VERSATILE FASTENING The greater length of the thread allows for smaller fastenable thicknesses, increasing the array of possible solutions

HIDDEN FASTENING The yellow coating allows for limited visibility, as the head blends in with the colour of the wood for visible applications

Range Screws with diameters between 4.0 and 5.0 mm and lengths of less than or equal to 50 mm have an unnotched self-perforating tip that increases the grip and hold of the screw. Screws with diameters over 6.0 mm have a self-perforating tip with a notch that avoids the risk of wood splitting

400 1 2 3 4 5 6 7

200

ø4

TX20

ø4,5 TX20

ø5

TX25

ø6

TX30

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

100

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

300

ø8

TX40

SCH

69


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

4

TX20 L b

4,5

TX20

d1

5

TX25 A

6

TX30

8

TX40

code

L [mm]

b [mm]

A [mm]

pcs /pckg.

40 50 60 70 45 50 60 70 50 60 70 80 90 100 120 80 90 100 120 140 150 160 180 200 220 240 260 280 300 140 160 180 200 220 240 260 280 300 320 340 360 380 400

24 30 35 40 30 30 35 40 30 35 40 50 55 60 60 50 55 60 75 80 80 90 100 100 100 100 100 100 100 80 90 90 100 100 100 100 100 100 100 100 100 100 100

16 20 25 30 15 20 25 30 20 25 30 30 10 40 60 30 35 40 45 60 70 70 80 100 120 140 160 180 200 60 70 90 100 120 140 160 180 200 220 240 260 280 300

500

SCH440 SCH450 SCH460 SCH470 SCH4545 SCH4550 SCH4560 SCH4570 SCH550 SCH560 SCH570 SCH580 SCH590 SCH5100 SCH5120 SCH680 SCH690 SCH6100 SCH6120 SCH6140 SCH6150 SCH6160 SCH6180 SCH6200 SCH6220 SCH6240 SCH6260 SCH6280 SCH6300 SCH8140 SCH8160 SCH8180 SCH8200 SCH8220 SCH8240 SCH8260 SCH8280 SCH8300 SCH8320 SCH8340 SCH8360 SCH8380 SCH8400

200

200

200

100

100

100

TURNED WASHER D2

70

SCH

code

d1 SCH

D2 [mm]

pcs /pckg.

SUS6 SUS8

6 8

20 25

100 50


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

4

≥ 40

27 kg

4,5

≥ 50

34 kg

5

≥ 60

43 kg

6

≥ 80

61 kg

8

≥ 140

109 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

40

45-50

60

70

80

90

100

120

140-150

160

180

200-300

320-400

4

48 kg

60 kg

70 kg

80 kg

-

-

-

-

-

-

-

-

-

4,5

-

68 kg

79 kg

90 kg

-

-

-

-

-

-

-

-

-

5

-

75 kg

88 kg

100 kg

125 kg

138 kg

150 kg

150 kg

-

-

-

-

-

6

-

-

-

-

150 kg

165 kg

180 kg

225 kg

240 kg

270 kg

300 kg

300 kg

-

8

-

-

-

-

-

-

-

-

320 kg

360 kg

360 kg

400 kg

400 kg

HEAD PENETRATION Nadm d1 [mm]

Nadm

4

26 kg

4,5

41 kg

5

50 kg

6

72 kg

8

105 kg

CALCULATION FORMULAS - SHEAR

DIN 1052-2:1988

WOOD-WOOD Vadm = min { 0,4 · A · d1 ; 1,7 · d1 2 } d1 [mm] A [mm] Vadm [kg] EXAMPLE WOOD-WOOD SCH 6 x 120 mm

d1 = 6 mm A = 45 mm

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 45 · 6 ; 1,7 · 62 } = min { 108 ; 61 } = 61 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

SCH

71


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS dk 90°

ds

dk 90°

ds

L

t1

s

D2

b t1

L

s

D1

d2

d1

D1

d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength SUS TURNED WASHER Washer Screw Internal diameter External diameter Thickness

D2

b

SCH SCREWS Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter

d1

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

4 8,00 2,55 2,75 2,80 2,5

4,5 9,00 2,80 3,15 2,80 3,0

5 10,00 3,40 3,65 3,10 3,0

6 12,00 3,95 4,30 4,50 4,0

8 14,50 5,40 5,80 4,50 5,0

My,k [Nmm] fax,k [N/mm2] fhead,k [N/mm2] ftens,k [kN]

3032,6 11,7 10,5 5,0

4119,1 11,7 10,5 6,4

5417,2 11,7 10,5 7,9

9493,7 11,7 10,5 11,3

20057,5 11,7 10,5 20,1

SUS6 SCH Ø6 7,5 20,0 4,0

D1 [mm] D2 [mm] S [mm]

SUS8 SCH Ø8 8,5 25,0 5,0

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

4 20 12 48 28 12 12

4,5 23 14 54 32 14 14

5 25 15 60 35 15 15

[mm] [mm] [mm] [mm] [mm] [mm]

4 40 20 60 40 20 20

4,5 45 23 68 45 23 23

5 60 25 75 50 25 25

6 30 18 72 42 18 18

8 40 24 96 56 24 24

4 16 16 28 28 20 12

4,5 18 18 32 32 23 14

5 20 20 35 35 35 15

6 24 24 42 42 42 18

8 32 32 56 56 56 24

5 25 25 50 50 50 25

6 30 30 60 60 60 30

8 40 40 80 80 80 40

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

Direction of the grain

Means of connection

a1

8 96 40 120 80 40 40 stressed end -90° < α < 90°

a2 a2 a1

6 72 30 90 60 30 30

4 20 20 40 40 28 20 discharged end 90° < α < 270°

a2 a2 a1

a1

4,5 23 23 45 45 32 23 stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a3,c

NOTE • The minimum distances are in accordance with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements equal to ρk ≤ 420 kg/m3. • In the case of OSB-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.85.

72

SCH

• In the case of steel-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.7.

a4,c


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

Designer statics

ACCESSORIES CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

thread withdrawal

(1)

head penetration (2)

A

L b d1

d1 [mm]

4 4,5 5

6

8

L [mm] 40 50 60 70 45 50 60 70 50 60 70 80 90 100 120 80 90 100 120 140 150 160 180 200 220 240 260 280 300 140 160 180 200 220 240 260 280 300 320 340 360 380 400

b [mm] 24 30 35 40 30 30 35 40 30 35 40 50 55 60 60 50 55 60 75 80 80 90 100 100 100 100 100 100 100 80 90 90 100 100 100 100 100 100 100 100 100 100 100

A [mm] 16 20 25 30 15 20 25 30 20 25 30 30 35 40 60 30 35 40 45 60 70 70 80 100 120 140 160 180 200 60 70 90 100 120 140 160 180 200 220 240 260 280 300

RV,k [kN] 0,82 0,90 0,99 0,99 0,95 1,05 1,17 1,21 1,21 1,34 1,45 1,45 1,45 1,45 1,45 1,86 2,01 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 2,06 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25 3,25

Rax,k [kN] 1,20 1,50 1,75 2,00 1,69 1,69 1,97 2,25 1,87 2,19 2,50 3,12 3,44 3,75 3,75 3,75 4,12 4,50 5,62 6,00 6,00 6,75 7,50 7,50 7,50 7,50 7,50 7,50 7,50 8,00 9,00 9,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00 10,00

Rhead,k [kN] 0,72 0,72 0,72 0,72 0,91 0,91 0,91 0,91 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 1,61 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36 2,36

GENERAL PRINCIPLES • Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. • For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Values were calculated considering the threaded part as being completely inserted into the wood.

• Sizing and verification of the wooden elements must be done separately. • The shear characteristic resistances are calculated for screws inserted without prebored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained.

NOTE The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. (2) The axial resistance to head penetration was calculated using wood elements. (1)

SCH

73


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

KOP

EN14592

Coach screw DIN571 Available in carbon steel with white galvanic zinc coating and in stainless steel A2

CE MARKING Screws with the CE mark, in accordance with EN14592

HEXAGONAL HEAD Appropriate for use on plates in steel-wood applications, thanks to its hexagonal head

ECO-FRIENDLY Trivalent Cr3+ chrome coating, replacing hexavalent chrome Cr6

VERSION FOR OUTDOOR USE Also available in stainless steel AISI304/A2 for outdoor use (service class 3)

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based panels. Service classes 1 and 2.

74

KOP

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

LARGE DIAMETERS The lag bolt is a wood screw available in diameters up to 16 mm for specific applications

VERSATILE FASTENING The wooden thread (which requires a pre-bored hole) is also appropriate for use in combination with plastic screw anchors for fastening to cement or brickwork supports

Range The carbon steel with zinc coating version is available with diameters from 6.0 to 16.0mm. The stainless steel A2 version is available with diameters from 8.0 to 12.0mm.

400 1 2 3 4 5 6 7

200

ø6

CH10

ø8

CH13

ø10

CH17

ø12

CH19

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

100

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

300

ø16

CH24

KOP

75


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions CARBON STEEL WITH WHITE GALVANIC ZINC COATING d1 [mm]

6

CH10

L b d1

8

CH13

10

CH17

12

CH19

code KOP650 KOP660 KOP670 KOP680 KOP6100 KOP850 KOP860 KOP870 KOP880 KOP8100 KOP8120 KOP8140 KOP8160 KOP8180 KOP8200 KOP1050 KOP1060 KOP1080 KOP10100 KOP10120 KOP10140 KOP10150 KOP10160 KOP10180 KOP10200 KOP10220 KOP10240 KOP10260 KOP10280 KOP10300 KOP1250 KOP1260 KOP1270 KOP1280 KOP1290 KOP12100 KOP12120 KOP12140 KOP12150 KOP12160 KOP12180 KOP12200 KOP12220 KOP12240 KOP12260 KOP12280 KOP12300 KOP12320 KOP12340 KOP12360 KOP12380 KOP12400

L [mm]

pcs/pckg

50 60 70 80 100 50 60 70 80 100 120 140 160 180 200 50 60 80 100 120 140 150 160 180 200 220 240 260 280 300 50 60 70 80 90 100 120 140 150 160 180 200 220 240 260 280 300 320 340 360 380 400

200

Diameter 6 screws have not been granted the CE mark

76

KOP

d1 [mm]

16

100

100

50

50

50

25

CH24

code KOP1680 KOP16100 KOP16120 KOP16140 KOP16150 KOP16160 KOP16180 KOP16200 KOP16220 KOP16240 KOP16260 KOP16280 KOP16300 KOP16320 KOP16340 KOP16360 KOP16380 KOP16400

L [mm]

pcs/pckg

80 100 120 140 150 160 180 200 220 240 260 280 300 320 340 360 380 400

25


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions STAINLESS STEEL AISI304/A2 VERSION d1 [mm]

8

CH13

L b d1

10

CH17

12

CH19

code AI571850 AI571860 AI571870 AI571880 AI5718100 AI5718120 AI5711050 AI5711060 AI5711080 AI57110100 AI57110120 AI57110140 AI57110150 AI57110160 AI57110180 AI57110200 AI57110220 AI57110240 AI57110260 AI5711260 AI5711270 AI5711280 AI5711290 AI57112100 AI57112120 AI57112140 AI57112150 AI571121560 AI57112180 AI57112200 AI57112220 AI57112240 AI57112260

L [mm] 50 60 70 80 100 120 50 60 80 100 120 140 150 160 180 200 220 240 260 60 70 80 90 100 120 140 150 160 180 200 220 240 260

pcs/pckg

100

50

50

25 50

25

The stainless steel screws have not been granted the CE mark

KOP

77


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD

STEEL-WOOD

d1 [mm]

L [mm]

Vadm

d1 [mm]

L [mm]

Vadm

8

≥ 100

109 kg

8

≥ 50

136 kg

10

≥ 120

170 kg

10

≥ 50

213 kg

12

≥ 140

245 kg

12

≥ 50

306 kg

16

≥ 180

435 kg

16

≥ 80

544 kg

150

160

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

50

60

70

80

90

100

120

140

8

72 kg

86 kg

101 kg

115 kg

-

144 kg

173 kg

202 kg

-

230 kg

10

90 kg

108 kg

-

144 kg

-

180 kg

216 kg

252 kg

270 kg

288 kg

12

108 kg

130 kg

151 kg

173 kg

194 kg

216 kg

259 kg

302 kg

324 kg

346 kg

16

-

-

-

230 kg

-

288 kg

346 kg

403 kg

432 kg

461 kg

Length L [mm] d1 [mm]

180

200

220

240

260

280

300

320

340

360 ÷ 400

8

259 kg

288 kg

-

-

-

-

-

-

-

-

10

324 kg

360 kg

396 kg

432 kg

468 kg

504 kg

540 kg

-

-

-

12

389 kg

432 kg

475 kg

518 kg

562 kg

605 kg

648 kg

691 kg

702 kg

702 kg

16

518 kg

576 kg

634 kg

691 kg

749 kg

806 kg

864 kg

922 kg

979 kg

984 kg

HEAD PENETRATION Nadm d1 [mm]

Nadm

8

29 kg

10

52 kg

12

60 kg

16

89 kg

CALCULATION FORMULAS - SHEAR DIN 1052-2:1988 WOOD-WOOD Vadm = min { 0,4 · A · d1 ; 1,7 · d1 2 } d1 [mm] A [mm] Vadm [kg] EXAMPLE WOOD-WOOD KOP 12 x 180 mm

d1 = 12 mm A = 72 mm

STEEL-WOOD Vadm = 1,25 · 1,7 · d1 2

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 72 · 12 ; 1,7 · 122 } = min { 346 ; 245 } = 245 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

78

KOP

d1 [mm] Vadm [kg]


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS LAG BOLT KOP Nominal diameter Wrench Head thickness Tip diameter Shank diameter Diameter pre-bored hole - smooth part Diameter pre-bored hole - threaded part Thread length

Ch k ds L b d2

Characteristic yield moment Characteristic extraction-resistance parameter Associated density Characteristic head-penetration parameter Associated density Characteristic tensile strength

d1

d1 [mm] Ch [mm] k [mm] d2 [mm] dS [mm] dV1 [mm] dV2 [mm] b [mm]

6* 10 4,00 4,20 6,00 6,0 4,0

8 13 5,50 5,60 8,00 8,0 5,5

10 17 7,00 7,00 10,00 10,0 7,0 ≥ 0,6 L

12 19 8,00 9,00 12,00 12,0 8,5

16 24 10,00 12,00 16,00 16,0 11,0

My,k [Nmm] fax,k [N/mm2] ρa [kg/m3] fhead,k [N/mm2] ρa [kg/m3] ftens,k [kN]

-

16900,0 12,9 400 22,8 440 15,7

32200,0 10,6 400 19,8 420 23,6

65700,0 10,2 440 16,4 430 37,3

138000,0 10,0 360 16,5 430 75,3

* This screw has not been granted the CE mark.

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

6 30 18 72 42 18 18

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

8 40 32 80 32 24 24

10 50 40 80 40 30 30

Means of connection

a1

16 80 64 112 64 48 48

stressed end -90° < α < 90°

a2 a2 a1

12 60 48 84 48 36 36

6 24 24 42 42 42 18

discharged end 90° < α < 270°

a2 a2 a1

a1

8 32 32 80 56 32 24

10 40 40 80 70 40 30

12 48 48 84 84 48 36

stressed edge 0° < α < 180°

16 64 64 112 112 64 48

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE • Minimum distances in accordance with EN 1995:2008. • For screws with diameters d > 6 mm, a pre-bored hole is required (EN 1995:2008).

KOP

79


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood α = 0° (1)

wood-wood α = 90° (2)

thin steel-wood plate (3)

thick steel-wood plate (4)

RV,k [kN] 2,96 3,28 3,55 3,78 3,96 3,96 3,96 3,96 3,96 3,96 3,48 4,18 5,01 5,78 6,05 6,05 6,05 6,05 6,05 6,05 6,05 6,05 6,05 6,05 6,05 4,01 4,81 5,61 6,42 6,92 7,20 7,82 8,50 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64 8,64

RV,k [kN] 2,23 2,68 2,87 3,01 3,32 3,42 3,42 3,42 3,42 3,42 2,56 3,07 4,01 4,56 4,92 5,19 5,19 5,19 5,19 5,19 5,19 5,19 5,19 5,19 5,19 2,89 3,46 4,04 4,62 5,19 5,63 6,02 6,41 6,62 6,84 7,25 7,25 7,25 7,25 7,25 7,25 7,25 7,25 7,25 7,25 7,25 7,25

RV,k [kN]

RV,k [kN]

thread withdrawal (5) head penetration (6)

A

L b

80

KOP

SPLATE ≥ 8 mm SPLATE ≥ 10 mm

2,64 3,22 3,51 3,65 3,93 4,20 4,48 4,76 5,04 5,07 3,10 3,79 4,97 5,26 5,54 5,83 5,97 6,12 6,40 6,69 6,97 7,26 7,54 7,66 7,66 3,49 4,28 5,07 5,86 6,66 7,40 7,70 8,01 8,16 8,31 8,62 8,92 9,23 9,54 9,84 10,15 10,45 10,76 10,84 10,84 10,84 10,84

SPLATE ≥ 12 mm

12

A [mm] 20 24 28 32 40 48 56 64 72 80 20 24 32 40 48 56 60 64 72 80 88 96 104 112 120 20 24 28 32 36 40 48 56 60 64 72 80 88 96 104 112 120 128 145 165 185 205

SPLATE ≤ 5 mm

10

b (7) [mm] 30 36 42 48 60 72 84 96 108 120 30 36 48 60 72 84 90 96 108 120 132 144 156 168 180 30 36 42 48 54 60 72 84 90 96 108 120 132 144 156 168 180 192 195 * 195 * 195 * 195 *

SPLATE ≤ 6 mm

8

L [mm] 50 60 70 80 100 120 140 160 180 200 50 60 80 100 120 140 150 160 180 200 220 240 260 280 300 50 60 70 80 90 100 120 140 150 160 180 200 220 240 260 280 300 320 340 360 380 400

SPLATE ≤ 4 mm

d1

d1 [mm]

3,75 4,38 4,56 4,70 4,98 5,25 5,53 5,81 6,09 6,37 4,65 5,30 6,56 6,84 7,13 7,42 7,56 7,70 7,99 8,27 8,56 8,85 9,13 9,42 9,70 6,10 6,67 7,36 8,12 8,94 9,78 10,13 10,44 10,59 10,74 11,05 11,36 11,66 11,97 12,27 12,58 12,88 13,19 13,27 13,27 13,27 13,27

Rax,k [kN] 2,78 3,34 3,90 4,45 5,56 6,68 7,79 8,90 10,02 11,13 2,86 3,43 4,57 5,72 6,86 8,00 8,57 9,14 10,29 11,43 12,57 13,72 14,86 16,00 17,15 3,06 3,67 4,28 4,89 5,50 6,12 7,34 8,56 9,17 9,78 11,01 12,23 13,45 14,68 15,90 17,12 18,35 19,57 19,88 19,88 19,88 19,88

Rhead,k [kN] 3,54 3,54 3,54 3,54 3,54 3,54 3,54 3,54 3,54 3,54 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,45 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54 5,54


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood α = 0° (1)

wood-wood α = 90° (2)

thin steel-wood plate (3)

thick steel-wood plate (4)

RV,k [kN] 8,49 10,48 11,43 12,18 12,58 12,99 13,86 14,09 14,09 14,09 14,09 14,09 14,09 14,09 14,09 14,09 14,09 14,09

RV,k [kN] 6,03 7,42 8,46 9,28 9,50 9,72 10,20 10,72 11,26 11,63 11,63 11,63 11,63 11,63 11,63 11,63 11,63 11,63

RV,k [kN]

RV,k [kN]

thread withdrawal (5) head penetration (6)

A

L b

b (7) [mm] 48 60 72 84 90 96 108 120 132 144 156 168 180 192 204 205 * 205 * 205 *

A [mm] 32 40 48 56 60 64 72 80 88 96 104 112 120 128 136 155 175 195

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with EN 1995:2008. • Design values are obtained from the following characteristic values:

(1)

(2)

• • • •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. In the calculations, the density of the wood elements was considered equal to ρk = 350 kg/m3. Values were calculated considering the minimum threaded part as being completely inserted into the wood. Sizing and verification of the wooden elements and steel plates must be done separately. The characteristic shear resistance values are calculated for screws inserted with pre-bored holes.

(3)

(4)

(5)

(6)

(7)

6,99 8,93 10,87 12,70 12,93 13,16 13,63 14,10 14,57 15,04 15,51 15,98 16,45 16,92 17,39 17,43 17,43 17,43

SPLATE ≥ 16 mm

16

L [mm] 80 100 120 140 150 160 180 200 220 240 260 280 300 320 340 360 380 400

SPLATE ≤ 8 mm

d1

d1 [mm]

11,17 13,02 15,10 16,59 16,83 17,06 17,53 18,00 18,47 18,94 19,41 19,88 20,35 20,82 21,29 21,33 21,33 21,33

Rax,k [kN] 7,51 9,39 11,26 13,14 14,08 15,02 16,89 18,77 20,65 22,53 24,40 26,28 28,16 30,04 31,91 32,07 32,07 32,07

Rhead,k [kN] 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89 8,89

The characteristic shear resistance values are calculated using an angle α between the strength and the grain of 0°. The characteristic shear resistance values are calculated using an angle α between the strength and the grain of 90°. The shear characteristic resistances are calculated considering the case of a thin plate (S PLATE ≤ 0,5 d1). The shear characteristic resistances are calculated considering the case of a thick plate (S PLATE ≥ d1). The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. The axial resistance to head penetration was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration. During calculation, a thread length of b = 0.6 L is used, with the exception of the measures (*).

KOP

81


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MBS

Cylindrical-head self-threading screw for brickwork Carbon steel with white galvanic zinc coating

HI-LOW THREADING Appropriate for direct fastening on compact and semi-solid materials: natural stone, concrete, solid bricks and hollow bricks

WOOD FRAMES Thanks to the cylindrical head, it is ideal for fastening wood frames directly to brickwork supports

DOOR AND WINDOW FASTENINGS The hi-low thread allows for safe fastening even near the edges of the support, thanks to the reduced tension induced on the material, ideal for frames

Codes and dimensions d1 [mm]

7,5

TX30

FAST INSTALLATION Once the support has been drilled (with a reduced drilling dimension), the screw finds its place directly in the frame, ensuring that the required distance from the brickwork is maintained

82

MBS

code FE210086 FE210087 FE210088 FE210089 FE210090 FE210091

L [mm]

pcs/pckg

72 92 112 132 152 182

100

Also available with a flat countersunk head: ideal for fastening to PVC and aluminium frames


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Geometry dk

L

MBS SELF-THREADING SCREW Nominal diameter Head diameter

d1 [mm] dk [mm]

7,5 8

INSTALLATION PARAMETERS Diameter pre-bored hole brickwork/concrete Diameter hole in the element to be fastened

d0 [mm] df [mm]

6,0 6,2

d1

EXTRACTION RESISTANCE - RECOMMENDED VALUES Support type concrete concrete block

h nom,min [mm] 30 40 40 80 60 80

solid brick hollow brick lightweight concrete

N [kN] 1,07 0,40 2,50 0,30 -

The recommended extraction values are obtained considering a safety coeďŹ&#x192;cient of 3.

Installation df

KEY

hnom

d0 = Diameter of pre-bored hole concrete/brickwork hnom = Nominal anchoring depth df = Diameter of hole in element to be fastened

do

MBS

83


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DWS

Drywall screws Phosphate-coated carbon steel

OPTIMISED GEOMETRY Bugle head and phosphate-coated steel; ideal for fastening sheets of drywall

TOTAL THREAD Fully threaded screw, ideal for fastening to wood supports

THERMAL AND NOISE INSULATION Ideal for quickly and safely creating thermal and noise insulation

Codes and dimensions d1 [mm]

3,5

PH2

WOOD SUBSTRUCTURE The total thread is ideal for fastening sheets of drywall to wood substructures

4,2

PH2

code

L [mm]

FE620001

25

FE620005

35

FE620010

45

FE620015

55

FE620020

65

L d1

84

DWS

description

pcs/pckg

wood substructure

1000

wood substructure

1000


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HZD

DWS collated drywall screw Phosphate-coated carbon steel

OPTIMISED GEOMETRY Fully threaded screw with bugle head and phosphate-coated steel; ideal for fastening sheets of drywall and plaster fibre

COLLATED VERSION Binding in plastic for quick and precise mass assembly

WOOD SUBSTRUCTURE The coarse thread is ideal for fastening sheets of drywall or plaster fibre to wood substructures

Codes and dimensions d1 [mm] code

3,9

PH2

SHEET METAL SUBSTRUCTURE The fine thread is ideal for fastening sheets of drywall or plaster fibre to sheet-metal substructures (maximum 0.75mm)

3,9

PH2

3,9

PH2

L [mm]

HH10600404

30

HH10600405

35

HH10600406

45

HH10600401

30

HH10600402

35

HH10600403

45

HH10600397

30

HH10600398

35

description

pcs/pckg

wood substructure

1000

sheet-metal substructure (max 0.75 mm)

1000

plaster fibre on wood or sheetmetal substructure (max. 0.75mm)

1000

HZD

85


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THERMOWASHER Washer to fasten insulation to wood Propylene system

ANTI-THERMAL BRIDGE Incorporated hole cover to avoid thermal bridges. Large cable spaces for proper plaster adhesion

SECURITY Includes a system that impedes the unthreading of the screw; used with HBS screws with the CE mark

CE FASTENING WITH HBS SCREWS The thermowasher is intended for use with screws with the CE mark in accordance with ETA; ideal for Ø 6 or Ø 8 HBS screws, with lengths based on the thickness of the insulation to be fastened; recommended measures range from HBS 6x140 to HBS 8x500 mm

UNIVERSAL FASTENING The propylene Ø 65 washer is compatible with Ø 6 and Ø 8 screws; it is appropriate for any type of insulation and any type of thickness that can be fastened, from a minimum of 30 mm up to a maximum of 420 mm. For proper setting, the insulation manufacturer’s instructions must be followed

86

THERMOWASHER

Codes and dimensions code D78202

dVITE [mm]

a x b x c [mm]

pcs/pckg

6/8

65 x 4 x 20

700


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ISULFIX

ETA 05/0267

Anchor for fastening insulation to brickwork PVC system with carbon steel nail

DOUBLE EXPANSION Ø8 PVC double expansion anchor with preassembled steel nails, for fastening to concrete and brickwork

CE MARKING Anchor with the CE mark in accordance with ETA, with certified resistance values

RAPID FASTENING Double expansion with preassembled steel nails allows for fast versatile fastening on concrete and brickwork

Codes and dimensions code D78404 D78406 D78408

VERSATILE FASTENING Anchor available in various measurements for different insulation thicknesses; can be used with an additional D78414 washer for use with soft insulation; method of use and certified laying possibilities indicated in the relative ETA document

code D78414

L [mm] 110 150 190

dFORO [mm] 8

dTESTA [mm]

A [mm]

pcs/pckg

60

80 120 160

250 150 100

dTESTA [mm]

description

pcs/pckg

90

additional washer for soft insulation

250

A= maximum fastening thickness

ISULFIX

87


88


89

2. STRUCTURES


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STRUCTURAL CONNECTORS A new approach for modern screws, conceived as connectors able to guarantee excellent static performance, taking advantage of the axial capacity.

RESISTANCE PARTIAL THREAD SCREWS

TOTAL THREAD CONNECTORS Concentration of stresses in the localised area in the direction of the load. Resistance connected to the bearing stress of the walls of the hole in the wood and the bending of the screw.

screws for shear loads

connectors stressed axially

resistance proportional to the diameter

resistance proportional to the threaded length

APPLICATION EXAMPLE

wood - wood coupling

CONNECTION WITH HBS PARTIAL THREAD SCREWS

more screws and more deformation

90

Stress distributed along the entire threaded surface. High resistance connected to the wood cylinder aďŹ&#x20AC;ected by tangential stresses.

CONNECTION WITH VGZ TOTAL THREAD CONNECTORS

fewer connectors and less deformation


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RIGIDITY PARTIAL THREAD SCREWS

TOTAL THREAD CONNECTORS

F

RIGIDITY

RIGIDITY

F

DUCTILITY

F • • • •

F

screws for shear loads high slip low rigidity high ductility

F

• connectors stressed axially • limited slip • high rigidity • reduced ductility

F s

The rigidity of the connection is conventionally identified by the slope of the elastic portions of the monotonic loadslip curve. The graph refers to shear tests to control displacement for HBS screws under lateral stress (shear) and crossed VGZ screws stressed axially.

F - load [kN]

s

EXPERIMENTAL BEHAVIOUR

DUCTILITY

kSER VGZ

kSER HBS

s - slip [mm]

91


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SCREWS STRESSED AXIALLY The resistance is proportional to the length of the thread and this makes it possible to achieve high performance with smaller diameters.

DETERMINING RESISTANCE To verify the resistance of screws stressed axially, the determining value is the lower between: THREAD extraction

STEEL traction / head separation, instability

resistance 30-100% function of thread L

HEAD penetration

resistance 100%

resistance 10%

For total thread connectors, the resistance to head penetration (binding in the case of partial thread screws) is considered unimportant and, instead, the high resistance to thread withdrawal is considered, which is expressed both for tensile and compression stress.

APPLICATION EXAMPLE

shear connection wood - wood

CONNECTION WITH VGZ TOTAL THREAD CONNECTORS Fc

Ft

Ft

Fc

CONNECTION WITH HBS PARTIAL THREAD SCREWS Fc=0

Ft

Ft

JOINTS WITH DIFFERENT TYPES OF CONNECTORS "When a connection includes different types of connectors or connector types with different rigidities, it is recommended that the compatibility of these types be verified [EN 1995:2008]." In practice, this means that it is not allowed to use diďŹ&#x20AC;erent fastening systems to transfer a single stress (e.g. F shear). The global resistance is not the sum of the individual resistances.

92


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APPLICATION EXAMPLE Transfer of shear force F through connectors stressed axially SOLUTION A 2 CROSSED CONNECTORS

SOLUTION B 2 PARALLEL CONNECTORS

F

F

BREAKDOWN OF THE FORCES 1 screw under traction

1 screw compressed

RESULT R = F

R

BREAKDOWN OF THE FORCES 2 screws under traction

direct contact: wood compressed

RESULT R = F

R/2 + R/2 = R*

* to be added to any contribution from friction

93


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STRUCTURAL REINFORCEMENTS Wood is an anisotropic material. Therefore, it has different mechanical characteristics depending on the direction of the grain and the stress.

The anisotropy of the material derives from its

In the context of reinforcements, the main mono-

cellular organisation: wood consists of layers of fibres

axial stresses to which wood may be subjected are:

welded to each other by lignin and can be compared

1. traction perpendicular to the grain

to extremely thin straws, known as tracheids.

2. traction perpendicular to the fibres

The physical structure determines the mechanical

3. compression perpendicular to the fibres

characteristics of the wood:

4. longitudinal shear

• great resistance and rigidity for stresses in the direction of the axis of the fibres; • reduced efficiency for stresses perpendicular to the direction of the fibres, in particular for tensile stresses. 1

94

2

3

4


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REINFORCEMENT FOR TRACTION PERPENDICULAR TO THE FIBRES - NOTCH FAILURE

REINFORCEMENT FOR TRACTION PERPENDICULAR TO THE FIBRES - HANGING LOAD FAILURE

3

REINFORCEMENT

Resistance influenced above all by cracks, knots, resin channels. Markedly fragile behaviour.

2

WOOD/METAL

REINFORCEMENT

Failure can occur in the case in which the load applied affects a height limited by the main beam (a/h ≤ 0.7). Markedly fragile behaviour.

ACCESSORIES

REINFORCEMENT FOR COMPRESSION PERPENDICULAR TO THE FIBRES - RESTING FAILURE

REINFORCEMENT

Crushing and severing of the fibres in the area where the forces are introduced (e.g. supports). Sufficiently ductile behaviour.

4

REINFORCEMENT FOR LONGITUDINAL SHEAR FAILURE

REINFORCEMENT

Collapse near the neutral axis, mutual sliding of the two parts of the section. Beam subject to flexion: tense area or support area. Markedly fragile behaviour.

95


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FASTENINGS FOR CONTINUOUS INSULATION Installation of a continuous layer of insulation guarantees excellent energy performance, eliminating thermal bridges. Efficacy is limited by the proper use of appropriate fastening systems, calculated correctly.

CRITICAL POINTS 1

CRUSHING OF THE INSULATION

Crushing of the insulation (for very heavy loads) leads to a reduction of the ventilation chamber and consequently reduces the aeration in the hollow space and, therefore, its efficacy. Additionally, it is possible that the insulating power of the package is

2

SLIP OF THE INSULATION AND THE COATING

The load which acts on the structure has a component parallel to the layer/façade which leads, if not impeded (for example through “type A” screws), to a possible shift in the external layers, causing probable damage to the cover surface and the insulating power. Clear thermal, aesthetic and waterproofing problems then result.

diminished, with the thickness being reduced after the crushing. To prevent this problem, it is necessary to verify that the compression resistance of the insulation σ(10%) is sufficient to resist the stresses in

F

F

question. Alternatively, it is possible to place screws tilted in the two directions so that the load is entirely transferred by the connectors and does not deform the layer of insulation in any way. 3

THERMAL BRIDGES

It is important that the insulation be continuous, without breaks or cracks, to optimise performance and minimise thermal bridges. Thermal bridges due to over frequent anchoring or those placed erroneously are also to be avoided.

96


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COVER: SOFT INSULATION

COVER: HARD INSULATION

Low compression resistance ( σ(10%) < 50 kPa - EN 826) • the insulation does not support the load component perpendicular to the layer (N) • screws are subject to tensile (A) and compression (B) stresses • for very high negative wind pressure loads, additional screws are inserted (C) • adequate board thickness makes it possible to optimise the number of fastenings

High compression resistance (σ(10%) ≥ 50 kPa - EN 826) • the insulation supports the load component perpendicular to the layer (N) • the screws are subject only to tensile stress (A) • for very high negative wind pressure loads, additional screws are inserted (C) • adequate batten thickness makes it possible to optimise the number of fastenings

N

N

F

F

A

A B

A

A

A B C

C

F

FAÇADE • the screws must support both positive and negative wind pressure loads (±N) and vertical forces (F) • laying: one screw in traction (A) and one perpendicular to the façade (C), tense or compressed as a function of N, or screws inclined in the 2 directions • the screws (C) must support both the positive and negative wind pressure loads (±N) and are alternatively subjected to compression and tensile stresses

A

C

±N

A

C

97


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VGZ

ETA 11/0030

Total thread connector with cylindrical head Carbon steel with white galvanic zinc coating

PACKAGING Box + CE paper + BIT

SPECIAL STEEL Deep thread and high resistance steel (fy,k = 1000 N/mm2) for excellent tensile performance

CYLINDRICAL HEAD Cylindrical head that is hidden in the wood

DIAMETERS Ø7 and Ø9 Optimise the minimum dimensions of the beams to be joined

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based-panel joints, reinforcements and couplings. Service classes 1 and 2

98

VGZ

ACCESSORIES


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CONCEALED JUNCTION The pair of connectors at a 45째 angle guarantees a highly resistant and rigid retractable junction, protected from fire and appropriate for earthquakes

COUPLING The total thread of the connector placed at an angle guarantees high rigidity for the joint, ideal for coupling beams and floors

REINFORCEMENT The total thread distributes the perpendicular tensile stress to the fibres along the height of the beam, guaranteeing reinforcement

VGZ

99


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Applications High performance fastening of X-Lam flooring placed side by side

Fastening of X-Lam flooring to X-Lam walls for major stresses

Inclined fastening of the secondary rafter on the main beam

Range The cylindrical head is ideal for invisible insertion of the screw in wood, using long bits. The d=7mm and d=9mm diameters allow for excellent assembly tolerances and a high safety factor in calculation and installation.

600 1 2 3

400

300 250 200

100 50

ø7

TX30

100

VGZ

ø9

TX40

42 43 44 45 46 47 48 49 5 0 51 52 53 54 55 56 57 58 59 6 0

150

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

350

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

450

5 6 7

500

4

550


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Codes and dimensions d1 [mm]

7

TX30

Lb

d1

9

TX40

code VGZ7100 VGZ7140 VGZ7180 VGZ7220 VGZ7260 VGZ7300 VGZ7340 VGZ9160 VGZ9200 VGZ9240 VGZ9280 VGZ9320 VGZ9360 VGZ9400 VGZ9450 VGZ9500

L [mm]

b [mm]

100 140 180 220 260 300 340 160 200 240 280 320 360 400 450 500

90 130 170 210 250 290 330 150 190 230 270 310 350 390 440 490

pcs/pckg

25

25

Template VGZ code

description

pcs/pckg

ATVGZXAMK

COMPLETE KIT

1

ATVGZXAM01 ATVGZXAM02 ATVGZXAM03 ATVGZXAM04 HBS680 ATINTX30200 ATINTX40200 MUT3156 ATVGZVITE

(1) template VGZ BASIC KIT (2) template VGZ CENTRAL KIT (3) template VGZ 7mm (4) template VGZ 9mm template fastening screws (5) bit TX 30 200mm (6) bit TX 40 200mm (7) wingnut DIN315 M6 (8) screws for assembly BASIC KIT

1 1 1 1 100 1 1 2 2

(3) ATVGZXAM03 (1) ATVGZXAM01

(2) ATVGZXAM02 (4) ATVGZXAM04

2x

100x

(5) ATINTX30200

(6) ATINTX40200

(7) MUT3156

(8) ATVGZVITE

ATVGZXAMK

VGZ

101


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

THREAD WITHDRAWAL Nadm TOTAL THREAD WITHDRAWAL Nadm d1 [mm]

b L A

7

L [mm]

b [mm]

Amin [mm]

Nadm

100

90

110

140

130

180

170

220

d1 [mm]

L [mm]

b [mm]

Amin [mm]

Nadm

315 kg

160

150

170

675 kg

150

455 kg

200

190

210

855 kg

190

595 kg

240

230

250

1035 kg

210

230

735 kg

280

270

290

1215 kg

260

250

270

776 kg

(1)

320

310

330

1277 kg (1)

300

290

310

776 kg

(1)

360

350

370

1277 kg (1)

340

330

350

776 kg (1)

400

390

410

1277 kg (1)

450

440

460

1277 kg (1)

500

490

510

1277 kg (1)

L [mm]

sg [mm]

Amin [mm]

Nadm

9

PARTIAL THREAD WITHDRAWAL Nadm d1 [mm]

Sg

A 7

Sg

A

L [mm]

sg [mm]

Amin [mm]

Nadm

d1 [mm]

100

35

55

123 kg

160

65

85

293 kg

140

55

75

193 kg

200

85

105

383

180

75

95

263 kg

240

105

125

473 kg

220

95

115

333 kg

280

125

145

563 kg

260

115

135

403 kg

320

145

165

653 kg

300

135

155

473 kg

360

165

185

743 kg

340

155

175

543 kg

400

185

205

833 kg

450

210

230

945 kg

500

235

255

1058 kg

9

1kN = 100 kg

CALCULATION FORMULAS WOOD-WOOD Nadm = 0,5 · sg · d1

102

VGZ

d1 [mm] sg [mm] Nadm [kg]

DIN 1052-2:1988

EXAMPLE WOOD-WOOD VGZ 9 x 240 mm

d1 = 9 mm sg = 105 mm

Nadm = 0,5 · sg · d1 Nadm = 0,5 · 105 · 9 = 473 kg

kg


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SLIDING Vadm WOOD - WOOD

A

45°

Sg

Sg

d1 [mm]

B

7

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

100

35

40

55

140

55

55

180

75

65

220

95

260 300 340

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

87 kg

160

65

60

75

207 kg

70

136 kg

200

85

75

90

270 kg

85

186 kg

240

105

90

105

334 kg

80

100

235 kg

280

125

105

120

398 kg

115

95

110

285 kg

320

145

115

135

461 kg

135

110

125

334 kg

360

165

130

145

525 kg

155

125

140

384 kg

400

185

145

160

589 kg

450

210

165

180

668 kg

500

235

180

195

748 kg

9

Vadm

SHEAR Vadm WOOD - WOOD d1 [mm]

A 7

L [mm]

sg [mm]

A [mm]

Vadm

100

35*

50

140

55

70

180

75

220

95

260

115

130

83 kg

300

135

150

340

155

170

d1 [mm]

L [mm]

sg [mm]

A [mm]

Vadm

83 kg

160

83 kg

200

65*

80

138 kg

85

100

138 kg

90

83 kg

110

83 kg

240

105

120

138 kg

280

125

140

138 kg

320

145

160

138 kg

83 kg

360

165

180

138 kg

83 kg

400

185

200

138 kg

450

210

225

138 kg

500

235

250

138 kg

9

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable shear values are calculated considering a fixing length of 8 d1 with the exception of (*). • The allowable extraction values are calculated considering the threaded part (b or sg) as being completely inserted into the wood.

(1)

Reaching tensile strength for steel failure.

VGZ

103


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM d1 [mm]

7

9

L [mm]

sg [mm]

BHT min [mm]

HHT min = hNT min [mm]

140

55

65

120

180

75

80

150

220

95

95

175

260

115

110

205

300

135

125

235

340

155

140

260

160

65

75

135

200

85

90

165

240

105

100

190

280

125

115

220

320

145

130

250

360

165

145

275

400

185

160

305

450

210

175

340

500

235

195

375

bNT min [mm]

without pre-bored hole

without pre-bored hole (3)

67 102 137 67 102 137 67 102 137 67 102 137 67 102 137 67 102 137 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176

53 88 123 53 88 123 53 88 123 53 88 123 53 88 123 53 88 123 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158

No. pairs

Vadm (1) [kg]

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

272 kg 544 kg 817 kg 371 kg 742 kg 1114 kg 470 kg 940 kg 1411 kg 569 kg 1138 kg 1708 kg 668 kg 1336 kg 2005 kg 767 kg 1534 kg 2302 kg 414 kg 827 kg 1241 kg 541 kg 1082 kg 1623 kg 668 kg 1336 kg 2005 kg 795 kg 1591 kg 2386 kg 923 kg 1846 kg 2768 kg 1050 kg 2100 kg 3150 kg 1177 kg 2355 kg 3532 kg 1336 kg 2673 kg 4009 kg 1496 kg 2991 kg 4487 kg

m (2) [mm]

53

67

81

95

109

124

61

75

89

103

117

131

145

163

181

NOTE (1)

(2)

104

The axial resistance of the thread to extraction was calculated considering an effective thread length equal to sg. The connectors must be inserted at 45° with respect to the shear plane. The centre of gravity of the connectors must be placed in correspondence with the shear plane. The assembly figure (m) is valid in the case of laying the connectors flush over the elements.

VGZ

(3)

In practice it is possible to reduce the minimum distances by inserting the connectors with a pre-bored hole.

• Allowable values in accordance with DIN 1052:1988.


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ALLOWABLE VALUES

DIN 1052:1988

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM d1 [mm]

11

L [mm]

sg [mm]

BHT min [mm]

HHT min = hNT min [mm]

200

85

90

165

250

110

105

200

300

135

125

235

350

160

140

270

400

185

160

305

450

210

175

340

500

235

195

380

550

260

210

415

600

285

230

450

bNT min [mm]

without pre-bored hole

without pre-bored hole (3)

105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215

83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193

No. pairs

Vadm (1) [kg]

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

661 kg 1322 kg 1983 kg 856 kg 1711 kg 2567 kg 1050 kg 2100 kg 3150 kg 1245 kg 2489 kg 3734 kg 1439 kg 2878 kg 4317 kg 1633 kg 3267 kg 4900 kg 1828 kg 3656 kg 5484 kg 2022 kg 4045 kg 6067 kg 2217 kg 4434 kg 6650 kg

m (2) [mm]

78

95

113

131

148

166

184

201

219

VGS connectors, countersunk head Ø9 and Ø11: see pg. 136

MINIMUM RECOMMENDED DISTANCES [mm] without prebored hole

7 9 11

a2,c

across

e

28 36 44

11 14 17

25 32 39

with pre-bored hole

7 9 11

a2,c

across

e

21 27 33

11 14 17

25 32 39

pre-bored hole dv [mm] 4,0 5,0 6,0

7 9 11

pre-bored hole required for connectors Ø11 ≥ 400 mm

Section:

Plan - 1 pair

m

Plan - 2 or more pairs

m 45°

90°

90°

hNT

a2,c across e bNT across a2,c

a2,c across bNT a2,c

HHT 90°

BHT

BHT

BHT

VGZ

105


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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS Z

X X

V

G

X

VGZ CONNECTOR

dk ds

Nominal diameter Head diameter Tip diameter Shank diameter Pre-bored hole diameter

Lb

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength Characteristic yield strength

d2 d1

d1 [mm] dK [mm] d2 [mm] dS [mm] dV [mm]

7 9,50 4,60 5,00 4,0

9 11,50 5,90 6,50 5,0

My,k [Nmm] fax,k [N/mm2] ftens,k [kN] fy,k [N/mm2]

14174,2 11,7 15,4 1000

27244,1 11,7 25,4 1000

EFFECTIVE THREAD USED IN CALCULATION b = L - 10 mm represents the entire length of the threaded part. sg = (L - 10 mm - 10 mm - Tol.) / 2 represents the partial length of the threaded part net of a laying tolerance (Tol.) di posa di 10 mm.

L 10 mm

Sg

Sg

Tol.

10 mm

The extraction, shear and sliding values were calculated placing the centre of gravity of the connector in correspondence with the shear plane and considering an effective thread of sg.

b

MINIMUM DISTANCES FOR SHEAR LOADS (1)

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

Angle between strength and grain α = 0°

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

7 84 35 105 70 35 35

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

9 108 45 135 90 45 45

7 35 35 70 70 70 35

a2 a2 a1

106

VGZ

a1

SCREWS INSERTED WITH PRE-BORED HOLES 9 45 45 90 90 90 45

stressed end -90° < α < 90°

Means of connection

7 35 21 84 49 21 21

discharged end 90° < α < 270°

a2 a2 a1

a1

Angle between strength and grain α = 90°

9 45 27 108 63 27 27

7 28 28 49 49 49 21

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a3,c

9 36 36 63 63 63 27

a4,c


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Geometry and minimum distances MINIMUM DISTANCES FOR AXIAL STRESSES (2)

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1

a2 a2,LIM (3) a1,C a2,C aCROSS

7 35 35 18 70 28 11

[mm] [mm] [mm] [mm] [mm] [mm]

SCREWS INSERTED WITH PRE-BORED HOLES

9 45 45 23 90 36 14

7 35 35 18 70 21 11

9 45 45 23 90 27 14

SCREWS UNDER TRACTION INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN Plan

Front

Plan

Front

a2,c a2,c a1,c a2,c a2 a2,c

a1

a2,c

a2,c

a2 a1

a2,c a1,c

a1,c

a2,c a1,c

SCREWS INSERTED WITH A 90° ANGLE WITH RESPECT TO THE GRAIN Plan

CROSS SCREWS INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN

Front

Plan

Front

a2,c

45°

a2

a2,c across a2,c

a2,c a1,c

a1

a1,c

a1

NOTE (1)

(2)

The minimum distances are in accordance with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3. The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-11/0030.

(3)

The axial distance a2 can be reduced down to 2.5 ∙ d1 if for each connector a ”joint surface“ a1 ∙ a2 = 25 ∙ d12 is maintained.

VGZ

107


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

TRACTION (1) geometry

total thread withdrawal (2)

L b

partial thread withdrawal (2) Sg

A

Sg

A

steel traction

A

d1

d1 [mm]

7

9

L [mm] 100 140 180 220 260 300 340 160 200 240 280 320 360 400 450 500

b [mm] 90 130 170 210 250 290 330 150 190 230 270 310 350 390 440 490

Amin [mm] 110 150 190 230 270 310 350 170 210 250 290 330 370 410 460 510

wood Rax,k [kN] 7,87 11,37 14,87 18,37 21,87 25,37 28,86 16,87 21,37 25,87 30,36 34,86 39,36 43,86 49,48 55,11

sg [mm] 35 55 75 95 115 135 155 65 85 105 125 145 165 185 210 235

wood Rax,k [kN] 3,06 4,81 6,56 8,31 10,06 11,81 13,56 7,31 9,56 11,81 14,06 16,31 18,56 20,81 23,62 26,43

Amin [mm] 55 75 95 115 135 155 175 85 105 125 145 165 185 205 230 255

steel Rtens,k [kN]

15,40

25,40

SLIDING wood - wood (3)

Sg

geometry

A

Sg

L b

45째

B

d1

d1 [mm]

7

9

108

VGZ

L [mm] 100 140 180 220 260 300 340 160 200 240 280 320 360 400 450 500

Sg [mm] 35 55 75 95 115 135 155 65 85 105 125 145 165 185 210 235

AMIN [mm] 40 55 65 80 95 110 125 60 75 90 105 115 130 145 165 180

BMIN [mm] 55 70 85 100 110 125 140 75 90 105 120 135 145 160 180 195

RV,k [kN] 1,97 3,09 4,22 5,34 6,47 7,59 8,72 4,70 6,14 7,59 9,04 10,48 11,93 13,37 15,18 16,99


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CHARACTERISTIC VALUES

EN 1995:2008

SHEAR geometry

wood-wood

Sg

A

L b Sg

d1

d1 [mm]

7

9

L [mm] 100 140 180 220 260 300 340 160 200 240 280 320 360 400 450 500

Sg [mm] 35 55 75 95 115 135 155 65 85 105 125 145 165 185 210 235

AMIN [mm] 50 70 90 110 130 150 170 80 100 120 140 160 180 200 225 250

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

RV,k [kN] 2,65 3,34 3,78 4,21 4,27 4,27 4,27 5,06 5,62 6,19 6,47 6,47 6,47 6,47 6,47 6,47

The design strength of the connector is the lower between the wood-side design strength (Rax,d) and the steel-side design strength (Rtens,d).

/ • •

• •

• •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. Sizing and verification of the wooden elements must be done separately. The shear characteristic resistances are calculated for screws inserted without a pre-bored hole. In the case of screws inserted with a pre-bored hole, greater resistance values can be obtained. The extraction, shear and sliding values were calculated considering the centre of gravity of the connector placed in correspondence with the shear plane. The characteristic resistances were calculated using solid wood or glulam. In the case of joints with X-Lam elements, the resistance values may be different and should be calculated on the basis of the characteristics of the panel and the connection configuration.

(2)

(3)

/

The axial resistance of the thread to extraction was calculated considering a 90° angle between the fibres and the connector and for a effective thread length of b or sg. For intermediate sg values it is possible to interpolate linearly. The axial resistance of the thread to extraction was calculated considering a 45° angle between the fibres and the connector and for an effective thread length of sg.

VGZ

109


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM

d1 [mm]

L [mm]

sg [mm]

BHT min [mm]

bNT min [mm]

HHT min = hNT min [mm]

No. pairs

without pre-bored hole with pre-bored hole

7

9

140

55

65

120

180

75

80

150

220

95

95

175

260

115

110

205

300

135

125

235

340

155

140

260

160

65

75

135

200

85

90

165

240

105

100

190

280

125

115

220

320

145

130

250

360

165

145

275

400

185

160

305

450

210

175

340

500

235

195

375

Section:

67 102 137 67 102 137 67 102 137 67 102 137 67 102 137 67 102 137 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176 86 131 176

53 88 123 53 88 123 53 88 123 53 88 123 53 88 123 53 88 123 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158 68 113 158

Plan - 1 pair

m

R1 V,k (1) [kN] extraction

(3)

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

R2 V,k (1) [kN] (4)

6,2 11,5 16,6 8,4 15,7 22,7 10,7 19,9 28,7 12,9 24,1 34,8 15,2 28,3 40,8 17,4 32,5 46,9 9,4 17,5 25,3 12,3 22,9 33,0 15,2 28,3 40,8 18,1 33,7 48,6 21,0 39,1 56,4 23,9 44,5 64,1 26,7 49,9 71,9 30,4 56,7 81,6 34,0 63,4 91,3

67 81 95 109 124 61 75 89 103 117 131 145 163 181

90째

90째

a2,c across e bNT across a2,c

a2,c across bNT a2,c

HHT 90째

VGZ

53

m

hNT

110

13,6 25,4 36,5 13,6 25,4 36,5 13,6 25,4 36,5 13,6 25,4 36,5 13,6 25,4 36,5 13,6 25,4 36,5 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3 22,8 42,6 61,3

Plan - 2 or more pairs

45째

BHT

instability

m (2) [mm]

BHT

BHT


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM

d1 [mm]

L [mm]

sg [mm]

BHT min [mm]

bNT min [mm]

HHT min = hNT min [mm]

without pre-bored hole with pre-bored hole

11

200

85

90

165

250

110

105

200

300

135

125

235

350

160

140

270

400

185

160

305

450

210

175

340

500

235

195

380

550

260

210

415

600

285

230

450

105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215 105 160 215

R1 V,k (1) [kN]

No. pairs

extraction

(3)

83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193 83 138 193

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

R2 V,k (1) [kN] (4)

instability

m (2) [mm]

15,0 29,1 28,0 54,2 78 40,4 78,1 19,4 29,1 36,3 54,2 95 52,2 78,1 23,9 29,1 44,5 54,2 113 64,1 78,1 28,3 29,1 52,8 54,2 131 76,0 78,1 32,7 29,1 61,0 54,2 148 87,9 78,1 37,1 29,1 69,2 54,2 166 99,7 78,1 41,5 29,1 77,5 54,2 184 111,6 78,1 45,9 29,1 85,7 54,2 201 123,5 78,1 50,4 29,1 219 94,0 54,2 135,4 78,1 VGS connectors, countersunk head Ø9 and Ø11: see pg. 136

MINIMUM RECOMMENDED DISTANCES [mm] without prebored hole

7 9 11

a2,c 28 36 44

across 11 14 17

e 25 32 39

with pre-bored hole

7 9 11

a2,c 21 27 33

across 11 14 17

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Sizing and verification of the wooden elements must be done separately.

(1)

e 25 32 39

pre-bored hole dv [mm]

7 4,0 9 5,0 11 6,0 pre-bored hole required for connectors Ø11 ≥ 400 mm

The design strength of the connector is the lower between the extraction-side design strength (R1 V,d) and the instability design strength (R2 V,d).

/ (2)

(3)

(4)

/

The assembly figure (m) is valid in the case of laying of the connectors flush over the elements. In practice it is possible to reduce the minimum distances by inserting the connectors with a pre-bored hole. The axial resistance of the thread to extraction was calculated considering an effective thread length equal to sg. The connectors must be inserted at 45° with respect to the shear plane. The centre of gravity of the connectors must be placed in correspondence with the shear plane.

• For different calculation methods, the myProject software is available (www. rothoblaas.com).

VGZ

111


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Calculation example: reinforcement of notched beam with traction perpendicular

PROJECT DATA

B-B

B = 200 mm H = 400 mm Hef = 200 mm H - Hef = 200 mm La = 150 mm ia = 0 notch slope

Wood GL24h (ρk = 380 kg/m3) Fv,Rd = 29,5 kN Service class = 1 Load duration = short

A-A a2,c a2 a2,c

B

B-B Hef

A-A

x

Sg sup

H Sg inf

H-Hef Fv,Rd La

a1,c

SHEAR STRESS VERIFICATION - BEAM WITHOUT REINFORCEMENT - Section A-A (EN 1995:2008): τd ≤ kv ·fv,d τd = 1,11 N/mm2 x = 75 mm α = 0,5 kn = 6,50 (GL24h) kv = 0,47 fv,k = 2,70 N/mm2

EN 1995:2008

Italia - NTC 2008

kmod = 0,9 γm = 1,25 fv,d = 1,94 N/mm2 kv · fv,d = 0,90 N/mm2 τd ≤ kv · fv,d

1,11 > 0,90 N/mm2

kmod = 0,9 γm = 1,45 fv,d = 1,68 N/mm2 kv · fv,d = 0,78 N/mm2 Verification not passed Requires reinforcement

τd ≤ kv · fv,d

1,11 > 0,78 N/mm2

Verification not passed Requires reinforcement

SHEAR STRESS VERIFICATION - Section B-B (EN 1995:2008): τd ≤ fv,d τd = 1,11 N/mm2

EN 1995:2008 τd ≤ fv,d

1,11 < 1,94 N/mm2

Verification passed

Italia - NTC 2008 τd ≤ fv,d

1,11 < 1,68 N/mm2

REINFORCEMENT Section A-A - CALCULATION OF TRACTION STRESS PERPENDICULAR TO THE FIBRES (DIN 1052:2008) Ft,90,d = 19,18 kN REINFORCEMENT CONNECTOR SELECTION VGZ 9 x 360 mm sg sup = 165 mm sg inf = 165 mm

112

VGZ

To optimise the resistance, the connector is placed with the centre of gravity in correspondence with the possible crack line.

Verification passed


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CONNECTOR TENSILE STRENGTH CALCULATION (EN 1995:2008 and ETA-11/0030)

The tensile strength of the connectors calculated here is shown in the table on pg. 108. The minimum distances for placement of the connectors are found in the table on pg. 107. Rax,90°,Rk = 18,56 kN Rtens,k = 25,40 kN

EN 1995:2008

Italia - NTC 2008

kmod = 0,9 γm = 1,3 γm2 = 1,25 Rax,90°,Rd = 12,85 kN R tens,d = 20,32 kN Rax,Rd = 12,85 kN

kmod = 0,9 γm = 1,5 γm2 = 1,25 Rax,90°,Rd = 11,13 kN Rtens,d = 20,32 kN Rax,Rd = 11,13 kN

MINIMUM NUMBER OF CONNECTORS Ft,90,d / Rax,Rd = 1,49

Ft,90,d / Rax,Rd = 1,72

2 connectors are hypothesized nef,ax 20,9 = 1,87

CONNECTION RESISTANCE TO TRACTION PERPENDICULAR TO THE FIBRES: Rax,Rd = 1,87 · 12,85 = 24,02 kN

>

19,18 kN

OK

Rax,Rd = 1,87 · 11,13 = 20,82 kN

>

19,18 kN

OK

For different calculation configurations, the myProject software is available (www.rothoblaas.com).

EXAMPLE OF JOINTS THAT REQUIRE VERIFICATION OF PERPENDICULAR TRACTION AND POSSIBLE REINFORCEMENT

ia = 0

ia > 0

VGZ

113


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WT

ETA 12/0063

Double thread connector Carbon steel with durocoat

TECHNICAL ASSISTANCE Complete documentation and software available online free of charge

APPROVAL PLUS Reduced minimum distances and use also allowed in directions parallel to the grain

OPTIMISED GEOMETRY Diameter and thread distances differentiated between the two threads, generating a pulling effect in the joint

DUROCOAT Surface durocoat treatment, for excellent corrosion resistance

APPLICATIONS Solid-wood, glulam, X-Lam, LVL, wood-based-panel joints, reinforcements and couplings. Service classes 1 and 2

114

WT

ACCESSORIES


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MINIMUM DISTANCES Special approval for use of the connector with reduced minimum distances and hence on smaller beam widths

HIGH SLOPES Special approval for use of the connector parallel to the grain and hence with any roof slope

STRUCTURAL RESTORATION The double thread with differentiated geometry creates a pulling and closing effect on the joint, ideal for use in structural restoration

WT

115


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Codes and dimensions d1 [mm]

Sg

6,5

TX30

L Sg d1

8,2

TX40

code CS100150 CS100145 CS100115 CS100155 CS100170 CS100175 CS100120 CS100125 CS100130 CS100135 CS100105 CS100140 CS100100

L [mm]

sg [mm]

65* 90* 130* 160 190 220 160 190 220 245 275 300 330

28 40 55 65 80 95 65 80 95 107 122 135 135

pcs/pckg

100

100

50

* Items in stainless steel available upon request (see also the OUTDOOR chapter)

Template WT code

description

ATWTXAMK

TEMPLATE FOR WT

ATCS003 ATINTX30200 ATINTX30350 ATINTX40152 ATINTX40200 ATINTX40350 ATINTX40520

universal tilting template with 2 guiding slots bit length 200, TX30 bit length 350, TX30 bit length 152, TX40 bit length 200, TX40 bit length 350, TX40 bit length 520, TX40

for WT Ă&#x2DC;

1 6,5/8,2 6,5 6,5 8,2 8,2 8,2 8,2

Application examples

116

Reinforcement of main beam for hanging load (ALU)

Lateral coupling

Wall / floor joint in frame structure

Beam reinforcement with openings

WT

pcs/pckg

1 1 1 1 1 1 1


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

THREAD WITHDRAWAL Nadm d1 [mm]

Sg

A 6,5

A

Sg

L [mm]

sg [mm]

Amin [mm]

Nadm

65

28

35

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Nadm

109 kg

160

65

85

320 kg

90

40

50

156 kg

190

80

100

394 kg

130

55

70

215 kg

220

95

115

467 kg

160

65

85

254 kg

245

107

125

526 kg

190

80

100

312 kg

275

122

140

600 kg

220

95

115

371 kg

300

135

155

664 kg

330

135

170

664 kg

8,2

A

A

SLIDING Vadm WOOD - WOOD d1 [mm]

45°

A

Sg

6,5

B

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

65

28

25

25

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

77 kg

160

65

60

60

226 kg

90

40

35

35

110 kg

190

80

70

70

278 kg

130

55

50

50

152 kg

220

95

80

80

331 kg

160

65

60

60

179 kg

245

107

90

90

372 kg

190

80

70

70

221 kg

275

122

100

100

424 kg

220

95

80

80

262 kg

300

135

110

110

470 kg

330

135

120

120

470 kg

8,2

SHEAR Vadm WOOD - WOOD d1 [mm]

A 6,5

A

L [mm]

sg [mm]

A [mm]

Vadm

65

28

35

90

40

50

130

55

70

72 kg

160

65

85

72 kg

190

80

100

220

95

115

d1 [mm]

L [mm]

sg [mm]

A [mm]

Vadm

45 kg

160

62 kg

190

65

85

114 kg

80

100

114 kg

220

95

115

114 kg

245

107

125

114 kg

72 kg

275

122

140

114 kg

72 kg

300

135

155

114 kg

330

135

170

114 kg

8,2

NOTE • Allowable values in accordance with DIN 1052:1988. • The values are valid for connections in which the connectors are inserted with half in each of the components.

• The allowable extraction values are calculated considering the threaded part (sg) as being completely inserted into the wood.

WT

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ALLOWABLE VALUES

DIN 1052:1988

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM d1 [mm]

6,5

8,2

L [mm]

sg [mm]

BHT min [mm]

HHT min [mm]

hNT min [mm]

130

55

60

110

110

160

65

70

130

130

190

80

80

150

150

220

95

90

170

170

160

65

70

130

130

190

80

80

150

150

220

95

90

170

170

245

107

100

190

190

275

122

110

210

210

300

135

120

230

230

330

135

130

250

250

Right-angle joint

m

Inclined joint

mHT

m 45° HHT

HHT

No. pairs

Vadm (1) [kg]

50 80 115 50 80 115 50 80 115 50 80 115 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

249 kg 497 kg 746 kg 294 kg 588 kg 882 kg 362 kg 724 kg 1085 kg 430 kg 859 kg 1289 kg 371 kg 742 kg 1113 kg 456 kg 913 kg 1369 kg 542 kg 1084 kg 1626 kg 610 kg 1221 kg 1831 kg 696 kg 1392 kg 2088 kg 770 kg 1540 kg 2311 kg 770 kg 1540 kg 2311 kg

Plan - 1 pair

118

WT

65

75

85

65

75

85

95

105

115

125

90°

90°

a2,c a90 bNT a2,c

hNT

BHT

55

Plan - 2 or more pairs

a1

a2

90°

BHT

m (2) [mm]

mNT 45°

hNT

bNT min [mm]

BHT

BHT

a2,c a90 a90 bNT a90 a2,c


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR CONNECTION WITH CROSSED CONNECTORS INCLINED JOINT - MAIN BEAM / SECONDARY BEAM BHT min [mm]

130

55

60

160

65

70

190

80

80

220

95

90

160

65

70

190

80

80

220

95

90

245

107

100

275

122

110

300

135

120

330

135

130

HHT min hNT min [mm] [mm]

Vadm (1) [kg]

bNT min [mm]

No. pairs

50 80 115 50 80 115 50 80 115 50 80 115 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

Inclination angle α for secondary beams (3) α = 10° α = 20° α = 30° α = 40° α = 45°

249 kg 497 kg 746 kg 294 kg 588 kg 882 kg 362 kg 724 kg 1085 kg 430 kg 859 kg 1289 kg 371 kg 742 kg 1113 kg 456 kg 913 kg 1369 kg 542 kg 1084 kg 1626 kg 610 kg 1221 kg 1831 kg 696 kg 1392 kg 2088 kg 770 kg 1540 kg 2311 kg 770 kg 1540 kg 2311 kg

198 kg 396 kg 593 kg 234 kg 467 kg 701 kg 288 kg 575 kg 863 kg 342 kg 683 kg 1025 kg 295 kg 590 kg 884 kg 363 kg 726 kg 1089 kg 431 kg 862 kg 1293 kg 485 kg 971 kg 1456 kg 553 kg 1107 kg 1660 kg 612 kg 1225 kg 1837 kg 612 kg 1225 kg 1837 kg

149 kg 299 kg 448 kg 177 kg 353 kg 530 kg 217 kg 435 kg 652 kg 258 kg 516 kg 775 kg 223 kg 446 kg 669 kg 274 kg 549 kg 823 kg 326 kg 652 kg 977 kg 367 kg 734 kg 1101 kg 418 kg 837 kg 1255 kg 463 kg 926 kg 1389 kg 463 kg 926 kg 1389 kg

105 kg 210 kg 316 kg 124 kg 249 kg 373 kg 153 kg 306 kg 459 kg 182 kg 363 kg 545 kg 157 kg 314 kg 471 kg 193 kg 386 kg 579 kg 229 kg 459 kg 688 kg 258 kg 516 kg 775 kg 294 kg 589 kg 883 kg 326 kg 652 kg 977 kg 326 kg 652 kg 977 kg

84 kg 169 kg 253 kg 100 kg 199 kg 299 kg 123 kg 245 kg 368 kg 146 kg 291 kg 437 kg 126 kg 251 kg 377 kg 155 kg 309 kg 464 kg 184 kg 367 kg 551 kg 207 kg 414 kg 621 kg 236 kg 472 kg 708 kg 261 kg 522 kg 783 kg 261 kg 522 kg 783 kg

mHT (2) [mm]

mNT (2) [mm]

55 / cos (α)

65 / cos (α)

75 / cos (α)

85 / cos (α)

65 / cos (α) mNT · [1 + tan (α)]

8,2

sg [mm]

(L + 20) · 0,707 · cos (α) + a2,c

6,5

L [mm]

(L + 20) · 0,707 + mNT · tan (α)

d1 [mm]

75 / cos (α)

85 / cos (α)

95 / cos (α)

105 / cos (α)

115 / cos (α)

125 / cos (α)

MINIMUM RECOMMENDED DISTANCES [mm] 6,5 8,2

a2,c

across = a90

a2

a1

15 24

10 12

33 40

33 40

NOTE (1)

The axial resistance of the thread to extraction was calculated considering an effective thread length equal to s g. The connectors must be inserted at 45° with respect to the shear plane. The centre of gravity of the connectors must be placed in correspondence with the shear plane.

The assembly figure (m) is valid in the case of laying of the connectors flush over the secondary beam. (3) In the case of intermediate values of the secondary beam inclination angle (α) it is possible to carry out a linear interpolation. • Allowable values in accordance with DIN 1052:1988. (2)

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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS dk

WT CONNECTOR

L

d1 [mm] d3 [mm] dK [mm] d2 [mm] dS [mm]

6,5 6,50 8,00 4,00 4,60

8,2 8,90 10,00 5,40 6,30

My,k [Nmm] fax,k [N/mm2] ftens,k [kN] fy,k [N/mm2]

12700 12,9 14,4 990

19500 13,35 28,6 870

Nominal diameter Locking thread diameter Head diameter Tip diameter Shank diameter

d3

Sg

ds

Sg

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength Characteristic yield strength

d2 d1

MINIMUM DISTANCES FOR AXIAL STRESSES (1) a1 a2 a2,LIM (2) a1,C a2,C aCROSS

6,5 33 33 16 33 15 10

[mm] [mm] [mm] [mm] [mm] [mm]

8,2 40 40 20 40 24 12

a2,c

a2,c a2,c a2 across a2

a2,c

a2,c a1,c

a2,c a2

a1

a2,c

a1,c

a1,c

MINIMUM DISTANCES FOR SHEAR LOADS (3)

Angle between strength and grain α = 0° a1 a2 a3,t a3,c a4,t a4,c

6,5 33 26 80 26 20 20

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

8,2 40 32 80 32 24 24

a1

6,5 26 26 80 46 26 20

stressed end -90° < α < 90°

Means of connection

a2 a2 a1

Angle between strength and grain α = 90°

discharged end 90° < α < 270°

a2 a2 a1

a1

8,2 32 32 80 56 32 24

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE (1)

(2)

120

The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-12/0063. The axial distance a2 can be reduced down to 2.5 ∙ d1 if for each connector a ”joint surface“ a1 ∙ a2 = 25 ∙ d12 is maintained.

WT

(3)

The minimum distances are in accordance with the EN 1995:2008 standard in accordance with ETA-12/0063.


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CHARACTERISTIC VALUES

EN 1995:2008

TRACTION (1) geometry

partial thread withdrawal (2)

steel traction A

Sg L A A

Sg d1

d1 [mm]

L [mm] 65 90 130 160 190 220 160 190 220 245 275 300 330

6,5

8,2

sg [mm] 28 40 55 65 80 95 65 80 95 107 122 135 135

wood Rax,k [kN] 2,51 3,58 4,93 5,82 7,16 8,51 7,60 9,35 11,11 12,51 14,26 15,78 15,78

Amin [mm] 35 50 70 85 100 115 85 100 115 125 140 155 170

SLIDING wood - wood (3)

Sg

45°

A

wood-wood A

Sg

Sg

L Sg

B

L [mm] 65 90 130 160 190 220 160 190 220 245 275 300 330

A

Sg

d1

8,2

28,60

geometry

L

6,5

14,40

SHEAR (4) geometry

d1 [mm]

steel Rtens,k [kN]

d1

Sg [mm] 28 40 55 65 80 95 65 80 95 107 122 135 135

AMIN [mm] 25 35 50 60 70 80 60 70 80 90 100 110 120

BMIN [mm] 25 35 50 60 70 80 60 70 80 90 100 110 120

RV,k [kN] 1,77 2,53 3,48 4,12 5,07 6,02 5,37 6,61 7,85 8,85 10,09 11,16 11,16

d1 [mm]

6,5

8,2

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-12/0063. • Design values are obtained from the following characteristic values:

(1)

L [mm] 65 90 130 160 190 220 160 190 220 245 275 300 330

sg [mm] 28 40 55 65 80 95 65 80 95 107 122 135 135

AMIN [mm] 35 50 70 85 100 115 85 100 115 125 140 155 170

The design strength of the connector is the lower between the wood-side design strength (Rax,d) and the steel-side design strength (Rtens,d).

/ • • • •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the connectors, reference was made to ETA-12/0063. In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Sizing and verification of the wooden elements must be done separately. The extraction, shear and sliding values were calculated considering the centre of gravity of the connector placed in correspondence with the shear plane.

(2)

(3)

(4)

RV,k [kN] 2,39 2,99 3,33 3,55 3,89 4,19 4,77 5,20 5,64 5,73 5,73 5,73 5,73

/

The axial resistance of the thread to extraction was calculated for an effective thread length of sg and is constant for an angle between the fibres and the connector of between 45° and 90°. The axial resistance of the thread to extraction was calculated considering a 45° angle between the fibres and the connector and for an effective thread length of sg. The characteristic shear resistance values were calculated using an angle α between the force and the grain of 90°.

WT

121


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SHEAR CONNECTION WITH CROSSED CONNECTORS RIGHT-ANGLE JOINT - MAIN BEAM / SECONDARY BEAM

d1 [mm]

6,5

8,2

L [mm]

sg [mm]

BHT min [mm]

HHT min [mm]

hNT min [mm]

130

55

60

110

110

160

65

70

130

130

190

80

80

150

150

220

95

90

170

170

160

65

70

130

130

190

80

80

150

150

220

95

90

170

170

245

107

100

190

190

275

122

110

210

210

300

135

120

230

230

330

135

130

250

250

Right-angle joint

m

Inclined joint

mHT

m 45°

No. pairs

50 80 115 50 80 115 50 80 115 50 80 115 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

Plan - 1 pair

HHT

R1 V,k (1) [kN] extraction (4) 6,3 11,8 17,0 7,6 14,1 20,4 9,5 17,7 25,5 11,4 21,2 30,6 9,9 18,5 26,6 12,4 23,1 33,2 14,8 27,7 39,9 16,8 31,4 45,2 19,3 36,0 51,9 21,5 40,0 57,7 21,5 40,0 57,7

122

WT

55 65 75 85 65 75 85 95 105 115 125

90°

90°

a2,c a90 bNT a2,c

hNT

BHT

m (2) [mm]

Plan - 2 or more pairs

a1

a2

90°

BHT

R2 V,k (1) [kN] instability 9,9 19,7 29,6 9,9 19,7 29,6 9,9 19,7 29,6 9,9 19,7 29,6 17,1 34,2 51,3 17,1 34,2 51,3 17,1 34,2 51,3 17,1 34,2 51,3 17,1 34,2 51,3 17,1 34,2 51,3 17,1 34,2 51,3

mNT 45°

hNT HHT

bNT min [mm]

BHT

BHT

a2,c a90 a90 bNT a90 a2,c


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CHARACTERISTIC VALUES

EN 1995:2008

SHEAR CONNECTION WITH CROSSED CONNECTORS INCLINED JOINT - MAIN BEAM / SECONDARY BEAM

BHT min HHT min hNT min [mm] [mm] [mm]

130

55

60

160

65

70

190

80

80

220

95

90

160

65

70

190

80

80

220

95

90

245

107

100

275

122

110

300

135

120

330

135

130

bNT min No. pairs [mm] 50 80 115 50 80 115 50 80 115 50 80 115 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150 70 110 150

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

α = 10° R1 V,k R2 V,k 5,3 9,7 9,9 19,4 14,2 29,1 6,4 9,7 11,9 19,4 17,2 29,1 8,0 9,7 14,9 19,4 21,5 29,1 9,6 9,7 17,9 19,4 25,8 29,1 8,3 16,8 15,5 33,6 22,3 50,4 10,4 16,8 19,4 33,6 28,0 50,4 12,5 16,8 23,3 33,6 33,6 50,4 14,2 16,8 26,5 33,6 38,2 50,4 16,3 16,8 30,4 33,6 43,8 50,4 18,1 16,8 33,8 33,6 48,7 50,4 18,1 16,8 33,8 33,6 48,7 50,4

R v,k (1) [kN] Inclination angle α for secondary beams (3) α = 20° α = 30° α = 40° R1 V,k R2 V,k R1 V,k R2 V,k R1 V,k R2 V,k 4,3 9,5 3,4 9,2 2,4 9,0 8,0 19,0 6,3 18,4 4,5 18,0 11,6 28,5 9,1 27,6 6,5 27,0 5,2 9,5 4,0 9,2 2,9 9,0 9,7 19,0 7,5 18,4 5,4 18,0 14,0 28,5 10,8 27,6 7,8 27,0 6,5 9,5 5,1 9,2 3,6 9,0 12,1 19,0 9,5 18,4 6,7 18,0 17,5 28,5 13,7 27,6 9,7 27,0 7,8 9,5 6,1 9,2 4,3 9,0 14,6 19,0 11,4 18,4 8,0 18,0 21,0 28,5 16,4 27,6 11,6 27,0 6,8 16,5 5,3 16,1 3,7 15,7 12,7 33,0 9,9 32,2 6,9 31,4 18,3 49,5 14,2 48,3 9,9 47,1 8,5 16,5 6,6 16,1 4,7 15,7 15,9 33,0 12,3 32,2 8,8 31,4 22,8 49,5 17,7 48,3 12,6 47,1 10,2 16,5 7,9 16,1 5,6 15,7 19,0 33,0 14,7 32,2 10,4 31,4 27,4 49,5 21,2 48,3 15,1 47,1 11,6 16,5 9,0 16,1 6,4 15,7 21,6 33,0 16,8 32,2 11,9 31,4 31,2 49,5 24,2 48,3 17,2 47,1 13,3 16,5 10,3 16,1 7,3 15,7 24,8 33,0 19,2 32,2 13,6 31,4 35,7 49,5 27,7 48,3 19,6 47,1 14,8 16,5 11,4 16,1 8,1 15,7 27,6 33,0 21,3 32,2 15,1 31,4 39,8 49,5 30,6 48,3 21,8 47,1 14,8 16,5 11,4 16,1 8,1 15,7 27,6 33,0 21,3 32,2 15,1 31,4 39,8 49,5 30,6 48,3 21,8 47,1

α = 45° R1 V,k R2 V,k 1,9 8,8 3,5 17,6 5,1 26,4 2,3 8,8 4,3 17,6 6,2 26,4 2,8 8,8 5,2 17,6 7,5 26,4 3,4 8,8 6,3 17,6 9,1 26,4 3,0 15,5 5,6 31,0 8,1 46,5 3,7 15,5 6,9 31,0 9,9 46,5 4,5 15,5 8,4 31,0 12,1 46,5 5,0 15,5 9,3 31,0 13,4 46,5 5,8 15,5 10,8 31,0 15,6 46,5 6,4 15,5 11,9 31,0 17,2 46,5 6,4 15,5 11,9 31,0 17,2 46,5

mHT (2) [mm]

mNT (2) [mm] 55 / cos (α) 65 / cos (α) 75 / cos (α) 85 / cos (α) 65 / cos (α)

mNT · [1 + tan (α)]

8,2

sg [mm]

(L + 20) · 0,707 · cos (α) + a2,c

6,5

L [mm]

(L + 20) · 0,707 + mNT · tan (α)

d1 [mm]

75 / cos (α) 85 / cos (α) 95 / cos (α) 105 / cos (α) 115 / cos (α) 125 / cos (α)

MINIMUM RECOMMENDED DISTANCES [mm]

6,5 8,2

a2,c 15 24

across = a90 10 12

a2 33 40

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-12/0063. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Sizing and verification of the wooden elements must be done separately.

(1)

The design strength of the connector is the lower between the extraction-side design strength (R1 V,d) and the instability design strength (R2 V,d).

/ (2)

(3)

(4)

a1 33 40

/

The assembly figure (m) is valid in the case of laying of the connectors flush over the secondary beam. In the case of intermediate values of the secondary beam inclination angle (α) it is possible to carry out a linear interpolation. The axial resistance of the thread to extraction was calculated considering an effective thread length equal to sg. The connectors must be inserted at 45° with respect to the shear plane. The centre of gravity of the connectors must be placed in correspondence with the shear plane.

• For different calculation methods, the online software is available (www.rothoblaas.com).

WT

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Calculation example: purlin joint / main beam PROJECT DATA

FD ; FZ

b = 160 mm h = 240 mm α = 20° Wood GL24h (ρk = 380 kg/m3)

FII

b l/2

l/2

45°

l/2

h

For the size of the purlin joints, stresses are projected to the components parallel (FII) and perpendicular to the covering (FD o FZ).

l/2

Fv,Rd = 8,43 kN FII , Rd = Fv,Rd · sen(α) = 2,88 kN FD , Rd = Fv,Rd · cos(α) = 7,92 kN FZ , Rd = 0 kN (es. vento) Service class = 1 Load duration = short

1) PARALLEL STRESS VERIFICATION: Rax,45,Rd > Z45,Rd b

FII

FII , Rd = 2,88 kN h

Z45 , Rd = 4,08 kN a45

45° Z45

CHOICE OF CONNECTOR INSERTED AT 45° a45 = 65 mm

WT 8,2 x 245 mm sg sup = 107 mm sg inf = 107 mm

The minimum distances for placement of the connectors are found in the table on pg. 120.

CONNECTOR TENSILE STRENGTH CALCULATION (EN 1995:2008 and ETA-12/0063) Rax,45,Rk = 12,51 kN The tensile strength of the connectors calculated here is shown in the table on pg. 121.

EN 1995:2008

Italia - NTC 2008

kmod = 0,9 γm = 1,3 Rax,45,Rd = 8,66 kN Rax,45,Rd > Z45,Rd

124

WT

kmod = 0,9 γm = 1,5 Rax,45,Rd = 7,51 kN 8,66 > 4,08 kN

Verification passed

Rax,45,Rd > Z45,Rd

7,51 > 4,08 kN

Verification passed


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2) PERPENDICULAR STRESS VERIFICATION: Rax,90,Rd > ZRd

FD b

Fz b

FII

h

Fz FII

h

b-a

a

b

FII

a = 40 mm

h

b-a

Z1

a

FII , Rd = 2,88 kN FD , Rd = 7,92 kN FZ , Rd (VENTO) = 0 kN

b-a

Z2

a Z3

Z1 , Rd = 4,69 kN Z2 , Rd = 8,65 kN Z3 , Rd = -25,95 kN ZRd = 8,65 kN CHOICE OF CONNECTOR INSERTED AT 90° WT 8,2 x 330 mm sg sup = 135 mm sg inf = 135 mm

CONNECTOR TENSILE STRENGTH CALCULATION (EN 1995:2008 and ETA-12/0063) Rax,90,Rk = 15,78 kN The tensile strength of the connectors calculated here is shown in the table on pg. 121.

EN 1995:2008

Italia - NTC 2008

kmod = 0,9 γm = 1,3 Rax,90,Rd = 10,92 kN Rax,90,Rd > ZRd

10,92 > 8,65 kN

kmod = 0,9 γm = 1,5 Rax,90,Rd = 9,47 kN Verification passed

Rax,90,Rd > ZRd

9,47 > 8,65 kN

Verification passed

WT

125


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DGZ

ETA 11/0030

Double thread connector for insulation Carbon steel with white galvanic zinc coating

PACKAGING Box + CE paper + BIT

CONSULTING Free myProject software and personalised consultations to optimise fastenings

CYLINDRICAL HEAD Cylindrical head hidden in the batten

DIAMETERS Ø7 and Ø9 Optimise the dimensions of the battens to be fastened

FIELDS OF USE Fastening of continuous insulation in the roof and façade; can be used for both soft and hard insulation. Service classes 1 and 2

126

DGZ

ACCESSORIES


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HARD INSULATION Fastening of hard insulation is done using screws placed in a single direction at a 60째 angle with respect to the layer

SOFT INSULATION Fastening of soft insulation is done using screws placed in two directions at a 60째 angle with respect to the layer

FACADE INSULATION The exterior insulation is connected to the structure through battens fastened with screws

DGZ

127


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Applications Fastening of hard insulation on a flat roof

Use with VENTILO batten and the ”Securotho“ system

Use with VENTILO batten and the ”Securotho“ system

Codes and dimensions d1 [mm]

80

7

TX30 L

9

100 d1

128

DGZ

TX40

code DGZ7220 DGZ7260 DGZ7300 DGZ7340 DGZ9240 DGZ9280 DGZ9320 DGZ9360 DGZ9400 DGZ9450 DGZ9500

L [mm] 220 260 300 340 240 280 320 360 400 450 500

pcs/pckg

50

50


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Connector selection MINIMUM CONNECTOR LENGTH DGZ Ø7 Insulation + wooden planking thickness [mm] 60 80 100 120 140 160 180 200 220 240 260 280 300

s = 30

A DGZ a 60° Lmin [mm] 220 220 220 220 260 260 300 340 340 -

B DGZ a 90° Lmin [mm] 220 220 220 220 220 260 260 300 300 340 340 -

Batten thickness [mm]* s = 50 B A B DGZ a 90° DGZ a 60° DGZ a 90° Lmin [mm] Lmin [mm] Lmin[mm] 220 220 220 220 220 220 220 220 220 220 260 220 220 260 260 260 300 260 260 340 300 300 340 300 300 340 340 340 340 -

s = 40

A DGZ a 60° Lmin [mm] 220 220 220 260 260 300 300 340 -

s = 60

A DGZ a 60° Lmin [mm] 220 220 260 260 300 300 340 -

B DGZ a 90° Lmin [mm] 220 220 220 220 260 260 300 300 340 340 -

VENTILO batten thickness [mm] s = 63 B A B DGZ a 90° DGZ a 60° DGZ a 90° Lmin [mm] Lmin [mm] Lmin [mm] 220 220 220 220 220 220 220 260 220 260 260 260 260 300 260 300 300 300 300 340 300 340 340 340 340 -

s = 80

A DGZ a 60° Lmin [mm] 220 260 260 300 300 340 -

* Minimum batten thicknesses: DGZ Ø7 mm: base/height = 50/30 mm

MINIMUM CONNECTOR LENGTH DGZ Ø9 Insulation + wooden planking thickness [mm] 60 80 100 120 140 160 180 200 220 240 260 280 300

s = 30

A DGZ a 60° Lmin [mm] -

B DGZ a 90° Lmin [mm] -

Batten thickness [mm]* s = 50 B A B DGZ a 90° DGZ a 60° DGZ a 90° Lmin [mm] Lmin [[mm] Lmin [mm] 240 240 240 240 240 240 240 240 240 240 240 240 240 280 240 240 320 280 280 320 280 280 360 320 320 360 320 320 400 360 360 400 360 360 450 400 400 450 400

s = 40

A DGZ a 60° Lmin [mm] 240 240 240 240 280 280 320 320 360 400 400 450 450

s = 60

A DGZ a 60° Lmin [mm] 240 240 240 280 280 320 320 360 400 400 450 450 500

B DGZ a 90° Lmin [mm] 240 240 240 240 240 280 280 320 320 360 360 400 400

* Minimum batten thicknesses: DGZ Ø9 mm: base/height = 60/40 mm

VENTILO batten thickness [mm] s = 63 B A B DGZ a 90° DGZ a 60° DGZ a 90° Lmin [mm] Lmin [mm] Lmin [mm] 240 240 240 240 240 240 240 240 240 240 280 240 280 280 280 280 320 280 320 360 320 320 360 320 360 400 360 360 400 360 400 450 400 400 450 400 450 500 450

s = 80

A DGZ a 60° Lmin [mm] 240 240 280 280 320 320 360 400 400 450 450 500 500

Check that the connector tip does not stick out from the rafter

POSSIBLE CONFIGURATIONS A

B A

60°

A

90°

60°

90°

A

60°

A A

A 90°

A A B

RIGID ROOF INSULATION σ(10%) ≥ 50 kPa (EN826)

B

SOFT ROOF INSULATION σ(10%) < 50 kPa (EN826)

60°

B

FACADE INSULATION

For sizing, see pg. 96 (intro). The number and placement of the fastenings depends on the geometry of the surfaces, the type of insulation and the loads acting on them.

DGZ

129


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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS dk

DGZ CONNECTOR Nominal diameter Head diameter Tip diameter Shank diameter

80 L 100

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength

d1

d1 [mm] dK [mm] d2 [mm] dS [mm]

7 9,50 4,60 5,00

9 11,50 5,90 6,50

My,k [Nmm] fax,k [N/mm2] ftens,k [kN]

14174,2 11,7 15,4

27244,1 11,7 25,4

MINIMUM DISTANCES FOR AXIAL STRESSES (1) a2,c a1

a2,c a1,c

a1 a2 a1,C a2,C

[mm] [mm] [mm] [mm]

a1,c

Plan

Front

SCREWS INSERTED WITHOUT PRE-BORED HOLES

SCREWS INSERTED WITH PRE-BORED HOLES

7 35 35 70 28

9 45 45 90 36

NOTE (1)

130

The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-11/0030

DGZ

7 35 35 70 21

9 45 45 90 27


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Calculation example: fastening of continuous insulation with DGZ Download free at www.rothoblaas.com

PROJECT DATA Roof loads Permanent load Snow load Positive wind pressure Negative wind pressure Ridge piece height

gk s we we z

0,45 kN/m2 1,70 kN/m2 0,30 kN/m2 -0,30 kN/m2 8,00 m

Building dimensions Building length Building width

L B

11,50 m 8,00 m

Roof geometry Layer slope Ridge piece position

α L1

30% = 16,7° 5,00 m

bT x hT S1 eb S2 bL x hL

120 x 160 mm 20,00 mm 0,33 m 160,00 mm 60 x 40 mm

Rev. 1.10

INSULATION PACKAGE FIGURES Rafters Wooden planking Tile support battens Insulation Battens

GL24h

Centre distance

Wood grain (soft) C24 Commercial length

i

0,70 m

σ(10%) LL

0,03 N/mm2 4,00 m

CONNECTOR SELECTION - OPTION 1 - DGZ Ø7 Screw under traction Compressed screw Perpendicular screw

DGZ DGZ DGZ

7 x 300 mm 7 x 300 mm 7 x 260 mm

Angle 60° Angle 60° Angle 90°

126 pcs 126 pcs 72 pcs

9 x 320 mm 9 x 320 mm 9 x 280 mm

Angle 60° Angle 60° Angle 90°

108 pcs 108 pcs 36 pcs

CONNECTOR SELECTION - OPTION 2 - DGZ Ø9 Screw under traction Compressed screw Perpendicular screw

Connector placement diagram

DGZ DGZ DGZ

Roof batten calculation

DGZ

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UD

ETA 12/0038

Double thread connector for insulation Carbon steel with durocoat

TEMPLATE Cardboard template in each box for proper placement of the fastenings

CONSULTING Free software and personalised consultations to optimise fastenings

OPTIMISED GEOMETRY Differentiated diameter between the two threads, longer shank and special tip for excellent static performance

DUROCOAT Surface ”durocoat” treatment, for excellent corrosion resistance

FIELDS OF USE Fastening of continuous insulation in the roof and façade; can be used for both soft and hard insulation. Service classes 1 and 2

132

UD

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VERSATILE FASTENING The two threads of the screw have diďŹ&#x20AC;erent diameters, guaranteeing excellent resistance, smaller minimum distances and closer positioning between the screws.

NO CRUSHING The central shank of the screw has a larger diameter and guarantees excellent resistance to compression, impeding crushing of the insulation, even with heavy loads

Codes and dimensions d1 [mm]

7,5

45

TX40 L 97 d1

code CS100005 CS1000010 CS1000015 CS1000020 CS1000025 CS1000030 CS1000035 CS1000040 CS1000045 CS1000050

L [mm]

pcs/pckg

210 230 250 270 300 330 360 400 440 480

100

50

UD

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Connector selection MINIMUM CONNECTOR LENGTH UD Ø7.5 Insulation + wooden planking thickness [mm]

A UD a 60° Lmin [mm] 210 210 210 230 250 300 300 330 360 400 400 440 440 480 480

60 80 100 120 140 160 180 200 220 240 260 280 300 320 340

s = 40

B UD a 90° Lmin [mm] 210 210 210 210 230 250 270 300 300 330 360 360 400 400 440

Batten thickness [mm]* s = 50 A B UD a 60° UD a 90° Lmin [mm] Lmin [mm] 210 210 210 210 230 210 250 210 270 230 300 250 330 270 330 300 360 330 400 330 400 360 440 400 480 400 480 440 -

A UD a 60° Lmin [mm] 210 210 230 250 300 300 330 360 400 400 440 440 480 480 -

s = 60

* Minimum batten thicknesses: UD Ø7.5 mm: base/height = 60/40 mm

B UD a 90° Lmin [mm] 210 210 210 230 250 270 300 300 330 360 360 400 400 440 -

A UD a 60° Lmin [mm] 210 230 250 300 300 330 360 400 400 440 440 480 480 -

s = 80

Check that the connector tip does not stick out from the rafter

POSSIBLE CONFIGURATIONS

A A

60°

A

90°

60°

90°

B

A

60°

A A A B

A 90°

B 60°

RIGID ROOF INSULATION σ(10%) ≥ 50 kPa (EN826)

SOFT ROOF INSULATION σ(10%) < 50 kPa (EN826)

For sizing, see pg. 96 (intro) The number and placement of the fastenings depends on the geometry of the surfaces, the type of insulation and the loads acting on them.

134

UD

B UD a 90° Lmin [mm] 210 210 230 250 270 300 300 330 360 360 400 400 440 -

FACADE INSULATION

B


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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS dk 45 37

d4 d3

Nominal diameter Head diameter Diameter lower-thread tip Shank diameter External diameter upper thread Diameter upper-thread tip

ds

L 97

d2

UD CONNECTOR

d1

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength

d1 [mm] dK [mm] d2 [mm] dS [mm] d3 [mm] d4 [mm]

7,5 12,00 5,30 7,05 8,80 6,40

My,k [Nmm] fax,k [N/mm2] ftens,k [kN]

13000,0 12,5 12,0

MINIMUM DISTANCES FOR AXIAL STRESSES (1) a2,c a1

a2,c a1,c

a1 a2 a1,C a2,C

[mm] [mm] [mm] [mm]

a1,c

7,5 53 38 75 30

NOTE (1)

The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-12/0038.

UD

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VGS

ETA 11/0030

Total thread connector with countersunk head Carbon steel with white galvanic zinc coating

PACKAGING Box + CE paper + BIT

SPECIAL STEEL Deep thread and high-resistance steel (fy,k = 1000 N/mm2) for excellent tensile performance

COUNTERSUNK HEAD Countersunk head for use on steel plates

DIAMETERS Ø9 and Ø11 Optimise the minimum dimensions of the beams to be joined

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based-panel joints, reinforcements and couplings. Service classes 1 and 2

136

VGS

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STEEL – WOOD The use of the connector inclined at 45° in combination with a steel plate guarantees high sliding resistance and rigidity of the joint

LIFTING The connector is ideal for lifting and transporting wood elements, thanks to the geometry of the head and the high-performance thread with excellent tensile strength

REINFORCEMENT The total thread and head geometry, in combination with a steel plate, make it possible to avoid crushing the wood grain due to perpendicular compression

VGS

137


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Applications Fastening of wood beams hanging from a steel beam

Fastening of LVL wood beams Retractable junction for large beams with 11 mm diameter connectors

Range The countersunk head allows for fastenings coupled with steel plates or hooks. The d=9mm and d=11mm diameters allow for excellent assembly tolerances and a high safety factor in calculation and installation.

600 1 2 3

400

300 250 200

100 50

ø9

TX40

138

VGS

ø11

TX50

42 43 44 45 46 47 48 49 5 0 51 52 53 54 55 56 57 58 59 6 0

150

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

350

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

450

5 6 7

500

4

550


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Codes and dimensions d1 [mm]

9

TX40 L

b

d1

11

TX50

code VGS9160 VGS9200 VGS9240 VGS9280 VGS9320 VGS9360 VGS11100 VGS11150 VGS11200 VGS11250 VGS11300 VGS11350 VGS11400 VGS11450 VGS11500 VGS11550 VGS11600

L [mm]

b [mm]

160 200 240 280 320 360 100 150 200 250 300 350 400 450 500 550 600

150 190 230 270 310 350 90 140 190 240 290 340 390 440 490 540 590

pcs/pckg

25

25

Upon request, the nanocoating version is also available for corrosion class C5.

d1 VGS 9

code HUS945

d1 [mm]

dK [mm]

D [mm]

L [mm]

H [mm]

h1 [mm]

pcs/pckg

9,5

18

25

35

20

3

25

VGS

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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

THREAD WITHDRAWAL Nadm TOTAL THREAD WITHDRAWAL Nadm d1 [mm]

b L A 9

L [mm]

b [mm]

Amin [mm]

Nadm

160

150

170

675 kg

200

190

210

855 kg

240

230

250

280

270

320

310

360

350

d1 [mm]

b [mm]

Amin [mm]

Nadm

100

90

110

495 kg

150

140

160

770 kg

1035 kg

200

190

210

1045 kg

290

1215 kg

250

240

260

1320 kg

330

1277 kg (1)

300

290

310

1595 kg

370

1277 kg

350

340

360

1598 kg (1)

400

390

410

1598 kg (1)

450

440

460

1598 kg (1)

500

490

510

1598 kg (1)

550

540

560

1598 kg (1)

600

590

610

1598 kg (1)

L [mm]

b [mm]

Amin [mm]

Nadm

55

193 kg

(1)

11

L [mm]

PARTIAL THREAD WITHDRAWAL Nadm

A

Sg

Sg

A

d1 [mm]

9

L [mm]

sg [mm]

Amin [mm]

Nadm

160

65

85

293 kg

100

35

200

85

105

383 kg

150

60

80

330 kg

240

105

125

473 kg

200

85

105

468 kg

280

125

145

563 kg

250

110

130

605 kg

320

145

165

653 kg

300

135

155

743 kg

360

165

185

743 kg

350

160

180

880 kg

400

185

205

1018 kg

450

210

230

1155 kg

500

235

255

1293 kg

550

260

280

1430 kg

600

285

305

1568 kg

CALCULATION FORMULAS - EXTRACTION WOOD-WOOD Nadm = 0,5 · sg · d1

d1 [mm] sg [mm] Nadm [kg]

d1 [mm]

11

DIN 1052-2:1988

EXAMPLE WOOD-WOOD VGS 11 x 400 mm

d1 = 11 mm sg = 185 mm

Nadm = 0,5 · sg · d1 Nadm = 0,5 · 185 ·11 = 1018 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable shear values are calculated considering a fixing length of 8 d1 with the exception of (*). • The allowable extraction values are calculated considering the threaded part (b or sg) as being completely inserted into the wood.

140

VGS

(1) (2)

Reaching tensile strength for steel failure. To properly create the joint, the head of the connector must be completely inserted in the steel plate.


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SLIDING Vadm

Sg

WOOD - WOOD d1 [mm]

Sg

45째

A

B

9

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

160

65

60

75

200

85

75

90

240

105

90

280

125

320

145

360

165

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

207 kg

100

35

40

55

136 kg

270 kg

150

60

60

75

233 kg

105

334 kg

200

85

80

90

331 kg

105

120

398 kg

250

110

95

110

428

120

135

461 kg

300

135

115

125

525 kg

135

145

525 kg

350

160

130

145

622 kg

400

185

150

160

719 kg

450

210

165

180

817 kg

500

235

185

195

914 kg

550

260

200

215

1011 kg

600

285

220

230

1108 kg

11

kg

STEEL - WOOD (2) d1 [mm] 45째

A

Sg 9

L [mm]

sg [mm]

Amin [mm]

Vadm

160

140

120

200

180

240

220

280

260

320

300

360

340

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Vadm

445 kg

100

80

75

311 kg

145

573 kg

150

130

110

506 kg

175

700 kg

200

180

145

700 kg

205

827 kg

250

230

185

894 kg

230

903 kg (1)

300

280

220

1089 kg

260

903 kg (1)

350

330

255

1130 kg (1)

400

380

290

1130 kg (1)

450

430

325

1130 kg (1)

500

480

360

1130 kg (1)

550

530

395

1130 kg (1)

600

580

430

1130 kg (1)

L [mm]

sg [mm]

A [mm]

Vadm

50

206 kg

11

SHEAR Vadm WOOD - WOOD

A

d1 [mm]

9

L [mm]

sg [mm]

A [mm]

160

65*

80

138 kg

100

35*

200

85

100

138 kg

150

60*

75

206 kg

240

105

120

138 kg

200

85*

100

206 kg

280

125

140

138 kg

250

110

125

206 kg

320

145

160

138 kg

300

135

150

206 kg

360

165

180

138 kg

350

160

175

206 kg

400

185

200

206 kg

450

210

225

206 kg

500

235

250

206 kg

550

260

275

206 kg

600

285

300

206 kg

Vadm

d1 [mm]

11

VGS

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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS 90°

ds

Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter *

d2 d1

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength Characteristic yield strength

X

X

V

G

VGS CONNECTOR

t1 dk

S

45°

X

L

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

9 16,00 5,90 6,50 6,50 5,0

11 19,30 6,60 7,70 8,20 6,0

My,k [Nmm] fax,k [N/mm2] ftens,k [kN] fy,k [N/mm2]

27244,1 11,7 25,4 1000

45905,4 11,7 38,0 1000

(*) Pre-bored hole required for connectors with Ø11 ≥ 400 mm

EFFECTIVE THREAD USED IN CALCULATION b = L - 10 mm represents the entire length of the threaded part. sg = (L - 10 mm - 10 mm - Tol.) / 2 represents the partial length of the threaded part net of a laying tolerance (Tol.) of 10 mm.

L 10 mm

Tol.

Sg

b

Sg

10 mm

The wood-wood extraction, shear and sliding values were calculated placing the centre of gravity of the connector in correspondence with the shear plane and considering an effective thread of sg.

MINIMUM DISTANCES FOR SHEAR LOADS (1)

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

Angle between strength and grain α = 0°

SCREWS INSERTED WITHOUT PRE-BORED HOLES [mm] [mm] [mm] [mm] [mm] [mm]

9 108 45 135 90 45 45

Direction of the grain

Means of connection

a1 a2 a3,t a3,c a4,t a4,c

11 132 55 165 110 55 55

9 45 45 90 90 90 45

a1

142

VGS

a1

SCREWS INSERTED WITH PRE-BORED HOLES 11 55 55 110 110 110 55

stressed end -90° < α < 90°

a2 a2

9 45 27 108 63 27 27

discharged end 90° < α < 270°

a2 a2 a1

a1

Angle between strength and grain α = 90°

11 55 33 132 77 33 33

9 36 36 63 63 63 27

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a3,c

11 44 44 77 77 77 33

a4,c


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Geometry and minimum distances MINIMUM DISTANCES FOR AXIAL STRESSES (2)

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a2,LIM (3) a1,C a2,C aCROSS

9 45 45 23 90 36 14

[mm] [mm] [mm] [mm] [mm] [mm]

SCREWS INSERTED WITH PRE-BORED HOLES

11 55 55 28 110 44 17

9 45 45 23 90 27 14

11 55 55 28 110 33 17

SCREWS UNDER TRACTION INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN Plan

Front

Front

a2,c

a2,c a1,c a2,c a2 a2,c

a1

Plan

a2,c a2

a2,c

a1

a2,c a1,c

a1,c

a2,c a1,c

SCREWS INSERTED WITH A 90° ANGLE WITH RESPECT TO THE GRAIN Plan

CROSS SCREWS INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN

Front

Plan

Front

a2,c

45°

a2

a2,c across a2,c

a2,c a1,c

a1

a1,c

a1

NOTE (1)

(2)

The minimum distances are in accordance with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3. The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-11/0030.

(3)

The axial distance a2 can be reduced down to 2.5 ∙ d1 if for each connector a ”joint surface“ a1 ∙ a2 = 25 ∙ d12 is maintained.

VGS

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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

TRACTION (1) / COMPRESSION (2) geometry

total thread withdrawal (3)

partial thread withdrawal (3) Sg

A

Sg

A

steel traction

instability

steel Rtens,k [kN]

steel Rki,k [kN]

25,40

17,20

38,00

21,88

A

L b

d1

d1 [mm]

L [mm] 160 200 240 280 320 360 100 150 200 250 300 350 400 450 500 550 600

9

11

b [mm] 150 190 230 270 310 350 90 140 190 240 290 340 390 440 490 540 590

wood Rax,k [kN] 16,87 21,37 25,87 30,36 34,86 39,36 12,37 19,24 26,12 32,99 39,86 46,73 53,61 60,48 67,35 74,22 81,10

Amin [mm] 170 210 250 290 330 370 110 160 210 260 310 360 410 460 510 560 610

sg [mm] 65 85 105 125 145 165 35 60 85 110 135 160 185 210 235 260 285

SHEAR

Amin [mm] 85 105 125 145 165 185 55 80 105 130 155 180 205 230 255 280 305

wood Rax,k [kN] 7,31 9,56 11,81 14,06 16,31 18,56 4,81 8,25 11,68 15,12 18,56 21,99 25,43 28,86 32,30 35,74 39,17

CROSSED CONNECTORS geometry

wood-wood

Sg

right-angle joint

45째

A

L b Sg

90째

d1

d1 [mm]

9

11

144

VGS

L [mm] 160 200 240 280 320 360 100 150 200 250 300 350 400 450 500 550 600

sg [mm] 65 85 105 125 145 165 35 60 85 110 135 160 185 210 235 260 285

AMIN [mm] 80 100 120 140 160 180 50 75 100 125 150 175 200 225 250 275 300

RV,k [kN] 5,06 5,62 6,19 6,47 6,47 6,47 4,22 6,33 7,42 8,28 9,00 9,00 9,00 9,00 9,00 9,00 9,00

The shear connection of the main/secondary beam with crossed VGS connectors is shown on page 110.


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SLIDING (4) wood - wood Sg

geometry

A 45°

Sg

L b

45°

steel - wood (5)

A

Sg

B d1

d1 [mm]

9

11

L [mm] 160 200 240 280 320 360 100 150 200 250 300 350 400 450 500 550 600

sg [mm] 65 85 105 125 145 165 35 60 85 110 135 160 185 210 235 260 285

AMIN [mm] 60 75 90 105 120 135 40 60 80 95 115 130 150 165 185 200 220

BMIN [mm] 75 90 105 120 135 145 55 75 90 110 125 145 160 180 195 215 230

RV,k [kN] 4,70 6,14 7,59 9,04 10,48 11,93 3,09 5,30 7,51 9,72 11,93 14,14 16,35 18,56 20,76 22,97 25,18

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

sg [mm] 140 180 220 260 300 340 80 130 180 230 280 330 380 430 480 530 580

AMIN [mm] 120 145 175 205 230 260 75 110 145 185 220 255 290 325 360 395 430

• •

• •

(2)

(4)

(5)

17,96

26,87

/

The compression design strength of the connector is the lower between the wood-side design strength (Rax,d) and the instability design strength (Rki,d).

i (3)

steel Rtens,k 45° (6) [kN]

The tensile design strength of the connector is the lower between the wood-side design strength (Rax,d) and the steel-side design strength (Rtens,d).

/ The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. Sizing and verification of the wooden elements and steel plates must be done separately. The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. The wood-wood extraction, shear and sliding values were calculated considering the centre of gravity of the connector placed in correspondence with the shear plane. The characteristic resistances were calculated using solid wood or glulam. In the case of joints with X-Lam elements, the resistance values may be different and should be calculated on the basis of the characteristics of the panel and the connection configuration.

wood RV,k [kN] 10,12 13,01 15,90 18,80 21,69 24,58 7,07 11,49 15,90 20,32 24,74 29,16 33,58 37,99 42,41 46,83 51,25

/

/

The axial resistance of the thread to extraction was calculated considering a 90° angle between the fibres and the connector and for a effective thread length of b or sg. For intermediate sg values it is possible to interpolate linearly. The axial thread extraction resistance was calculated considering a 45° angle between the fibres and the connector and for an effective thread length of sg. The sliding design strength of the connector is the lower between the wood-side design strength (RV,d) and the steel-side design strength (Rtens,d 45°).

/

/

To properly create the joint, the head of the connector must be completely inserted in the steel plate. (6) The connector tensile strength was calculated considering a 45° angle between the fibres and the connector.

VGS

145


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CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Calculation example: reinforcement of beam with compression perpendicular to the fibres

PROJECT DATA B = 200 mm H = 520 mm a = 25 mm La = 200 mm Wood GL24h (ρk = 380 kg/m3)

a2, c a2 a2, c

B

Fv,Rd = 98,3 kN Fc,90,Rd = 98,3 kN Service class = 1 Load duration = medium

a1, c

a1

Fv,Rd

H

Fc,90,Rd a

La

SHEAR VERIFICATION OF SUPPORT (EN 1995:2008): τ d ≤ f v,d τd = 1,42 N/mm2 fv,k = 2,70 N/mm2

EN 1995:2008

Italia - NTC 2008

kmod = 0,8 γm = 1,25 fv,d = 1,73 N/mm2 τd ≤ fv,d

kmod = 0,8 γm = 1,45 fv,d = 1,49 N/mm2

1,42 < 1,73 N/mm2

Verification passed

τd ≤ fv,d

1,42 < 1,49 N/mm2

Verification passed

PERPENDICULAR COMPRESSION VERIFICATION OF SUPPORT - BEAM WITHOUT REINFORCEMENT (EN 1995:2008): σc,90,d ≤ kc,90 ·fc,90,d lef,1 = 255 mm σc,90,d = 1,93 N/mm2 kc,90 = 1,00 fc,90,k = 2,70 N/mm2

EN 1995:2008

Italia - NTC 2008

kmod = 0,8 γm = 1,25 fc,90,d = 1,73 N/mm2 σc,90,d ≤ kc,90 · fc,90,d

146

VGS

kmod = 0,8 γm = 1,45 fc,90,d = 1,49 N/mm2 1,93 > 1,73 N/mm2

Verification not passed Requires reinforcement

σc,90,d ≤ kc,90 ·fc,90,d

1,93 > 1,49 N/mm2

Verification not passed Requires reinforcement


STRUCTURES

CARPENTRY

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WOOD/METAL

ACCESSORIES

PERPENDICULAR COMPRESSION VERIFICATION OF SUPPORT - BEAM WITH REINFORCEMENT (EN 1995:2008 and ETA-11/0030): Fc,90,Rd ≤ Rc,90,Rd

REINFORCEMENT CONNECTOR SELECTION n0 = 2 n90 = 2 n = n0 · n90 = 4

VGS 9 x 360 mm L = 360 mm b = 350 mm

lef,2 = 495 mm The minimum distances for placement of the connectors are found in the table on pg. 143. Rax,90°,Rk = 39,36 kN Rki,k = 17,20 kN

The compression resistance of the connectors calculated here is shown in the table on pg. 144.

EN 1995:2008

Italia - NTC 2008

Rc,90,Rd = 156,93 kN

Rc,90,Rd = 141,50 kN

kmod = 0,8 γm = 1,3 γm 1 = 1,00 Rax,90°,Rd = 24,22 kN Rki,d = 17,20 kN Rax,Rd = 17,20 kN

Fc,90,Rd ≤ Rc,90,Rd

kmod = 0,8 γm = 1,5 γm 1 = 1,05 Rax,90°,Rd = 20,99 kN Rki,d = 16,38 kN Rax,Rd = 16,38 kN

98,3 < 156,93 kN

Verification passed

Fc,90,Rd ≤ Rc,90,Rd

98,3 < 141,50 kN

Verification passed

For different calculation configurations, the myProject software is available (www.rothoblaas.com).

VGS

147


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

WRT

ETA 12/0062

Total thread connector with countersunk head Carbon steel with durocoat

LARGE SIZES Diameters up to 13 mm and lengths up to 1000 mm

APPROVAL PLUS Reduced minimum distances and use also allowed in directions parallel to the grain

SPECIAL TIP Special self-perforating tip approved for insertion without pre-bored holes for all sizes

DUROCOAT Surface ”durocoat“ treatment, for excellent corrosion resistance

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based-panel joints, reinforcements and couplings. Service classes 1 and 2

148

WRT

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

LARGE STRUCTURES The lengths of the connector allow for the creation of very large structural solutions, such as coupling of very high beams and joints on large structures

FAST INSTALLATION The connector is approved for insertion without a pre-bored hole (an 80mm directional guide hole is recommend and allows for fast execution of complex structural reinforcements)

PERPENDICULAR FORCE In large structures, the compression and tensile stresses perpendicular to the wood fibres are absorbed by the connector placed along the height of the elements to be reinforced

WRT

149


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WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

9

L

TX40

b

d1

13

TX50

code WRT9250 WRT9300 WRT9350 WRT9400 WRT9450 WRT9500 WRT13400 WRT13500 WRT13600 WRT13700 WRT13800 WRT13900 WRT131000

L [mm]

b [mm]

250 300 350 400 450 500 400 500 600 700 800 900 1000

230 280 330 380 430 480 380 480 580 680 780 880 980

pcs/pckg*

50

25

* also sold individually. Upon request, WRT 13x1200mm is available.

Tools code DUD38RLE ATRE2019 ATRE2014 DUD38SH DUVSKU

USE AS: WRT SCREWDRIVER Diameter Ø11 Ø 12 and Ø 13 Length up to 1.50 m Machine with accessories + +

150

WRT

description

pcs/pckg

drill mandrel adaptor mandrel 1.5 - 20 handle safety clutch

1 1 1 1 1


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Application examples

Tapered beams - apex reinforcement.

Beam notches - reinforcement.

Perpendicular compression - reinforcement.

Lattice beams - connection.

WRT

151


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

THREAD WITHDRAWAL Nadm TOTAL THREAD WITHDRAWAL Nadm d1 [mm]

A

Lb

9

d1

L [mm]

b [mm]

Amin [mm]

Nadm

250

230

260

300

280

310

350

330

400

d1 [mm]

L [mm]

b [mm]

Amin [mm]

1139 kg

400

380

410

2470 kg

1386 kg

500

480

510

2513 kg (1)

360

1634 kg

600

580

610

2513 kg (1)

380

410

1680 kg (1)

450

430

500

480

13

Nadm

700

680

710

2513 kg (1)

460

1680 kg

(1)

800

780

810

2513 kg (1)

510

1680 kg (1)

900

880

910

2513 kg (1)

1000

980

1010

2513 kg (1)

L [mm]

sg [mm]

Amin [mm]

Nadm

PARTIAL THREAD WITHDRAWAL Nadm d1 [mm]

A

Sg

9

Sg

A

L [mm]

sg [mm]

Amin [mm]

Nadm

d1 [mm]

250

125

130

619 kg

400

200

205

1300 kg

300

150

155

743 kg

500

250

255

1625 kg

350

175

180

866 kg

600

300

305

1950 kg

400

200

205

990 kg

700

350

355

2275 kg

450

225

230

1114 kg

800

400

405

2513 kg (1)

500

250

255

1238 kg

900

450

455

2513 kg (1)

1000

500

505

2513 kg (1)

13

SLIDING Vadm WOOD - WOOD

Sg

d1 [mm]

Sg

45째

A 9

B

152

WRT

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

250

125

95

95

300

150

113

350

175

131

400

200

450

225

500

250

d1 [mm]

L [mm]

sg [mm]

Amin [mm]

Bmin [mm]

Vadm

438 kg

400

200

152

152

919 kg

113

525 kg

500

250

188

188

1149 kg

131

613 kg

600

300

223

223

1379 kg

148

148

700 kg

700

350

258

258

1609 kg

166

166

788 kg

800

400

294

294

1777 kg (1)

184

184

875 kg

900

450

329

329

1777 kg (1)

1000

500

365

365

1777 kg (1)

13


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SLIDING Vadm STEEL - WOOD (2) d1 [mm]

45°

Sg

A 13

L [mm]

sg [mm]

Amin [mm]

400

380

280

1747 kg

500

480

350

1777 kg (1)

600

580

420

1777 kg (1)

700

680

490

1777 kg (1)

800

780

570

1777 kg (1)

900

880

640

1777 kg (1)

1000

980

710

1777 kg (1)

L [mm]

sg [mm]

A [mm]

Vadm

250

125

125

300

150

150

350

175

400 450 500

Vadm

SHEAR Vadm WOOD - WOOD d1 [mm]

A 9

d1 [mm]

L [mm]

sg [mm]

A [mm]

Vadm

138 kg

400

200

200

287 kg

138 kg

500

250

250

287 kg

175

138 kg

600

300

300

287 kg

200

200

138 kg

700

350

350

287 kg

225

225

138 kg

800

400

400

287 kg

250

250

138 kg

900

450

450

287 kg

1000

500

500

287 kg

13

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part (b or sg) as being completely inserted into the wood. (1) Reaching tensile strength for steel failure. (2) To properly create the joint, the head of the connector must be completely inserted in the steel plate.

WRT

153


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OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS 90°

45°

WRT CONNECTOR

t1 dk

Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter *

ds L

d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength Characteristic yield strength

d1

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dv [mm]

9 14,00 5,70 6,80 6,10 ≤ 5,70

13 22,00 8,50 10,00 7,25 ≤ 8,50

My,k [Nmm] fax,k [N/mm2] ftens,k [kN] fy,k [N/mm2]

19200,0 12,8 35,9 1010

84600,0 12,9 58,4 930

* Connector Ø9: guide hole recommended Ø5x80mm / Connector Ø13: guide hole recommended Ø8x80mm

MINIMUM DISTANCES FOR AXIAL STRESSES (1)

a1 a2 a1,C a2,C aCROSS

9 45 45 45 27 23

[mm] [mm] [mm] [mm] [mm]

13 65 65 65 39 33

SCREWS UNDER TRACTION INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN Plan

Front

Front

a2,c

a2,c a1,c a2,c a2 a2,c

a1

Plan

a2,c a2

a2,c

a1

a2,c a1,c

a1,c

a2,c a1,c

SCREWS INSERTED WITH A 90° ANGLE WITH RESPECT TO THE GRAIN Plan

Front

CROSS SCREWS INSERTED WITH AN ANGLE α WITH RESPECT TO THE GRAIN Plan

Front

a2,c

45°

a2 a2,c a1,c

154

WRT

a1

a1,c

a1

a2,c across a2,c


STRUCTURES

CARPENTRY

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WOOD/METAL

ACCESSORIES

Geometry and minimum distances MINIMUM DISTANCES FOR SHEAR LOADS (2)

Angle between strength and grain α = 0° a1 a2 a3,t a3,c a4,t a4,c

9 45 36 80 36 27 27

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

stressed end -90° < α < 90°

Means of connection

a2 a2 a1

a1

Angle between strength and grain α = 90°

13 65 52 91 52 39 39

9 36 36 80 63 36 27 discharged end 90° < α < 270°

a2 a2 a1

a1

13 52 52 91 91 52 39

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE (1)

(2)

The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-12/0062. The minimum distances are in accordance with the EN 1995:2008 standard in accordance with ETA-12/0062.

WRT

155


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OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

TRACTION (1) / COMPRESSION (2) geometry

total thread withdrawal (3)

partial thread withdrawal (3)

steel traction

instability

steel Rtens,k [kN]

steel Rki,k [kN]

35,9

15,7

58,4

34,1

A L

Sg

A

Sg

A

b A

A

d1

d1 [mm]

L [mm] 250 300 350 400 450 500 400 500 600 700 800 900 1000

9

13

b [mm] 230 280 330 380 430 480 380 480 580 680 780 880 980

Amin [mm] 260 310 360 410 460 510 410 510 610 710 810 910 1010

wood Rax,k [kN] 28,3 34,5 40,6 46,8 52,9 59,1 68,1 86,0 103,9 121,8 139,7 157,6 175,5

SHEAR (4) geometry

wood-wood A

Sg L

b Sg d1

d1 [mm]

9

13

156

WRT

L [mm] 250 300 350 400 450 500 400 500 600 700 800 900 1000

sg [mm] 125 150 175 200 225 250 200 250 300 350 400 450 500

AMIN [mm] 125 150 175 200 225 250 200 250 300 350 400 450 500

α = 90° RV,k [kN] 5,1 5,1 5,1 5,1 5,1 5,1 12,6 12,6 12,6 12,6 12,6 12,6 12,6

sg [mm] 125 150 175 200 225 250 200 250 300 350 400 450 500

Amin [mm] 130 155 180 205 230 255 205 255 305 355 405 455 505

wood Rax,k [kN] 15,4 18,5 21,6 24,6 27,7 30,8 35,8 44,9 53,7 62,8 71,6 80,7 89,6


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SLIDING (5) wood - wood (6) Sg

geometry

L

A

Sg

45°

steel - wood (6)

b

45°

B

Sg

A

d1

d1 [mm]

9

13

L [mm] 250 300 350 400 450 500 400 500 600 700 800 900 1000

sg [mm] 125 150 175 200 225 250 200 250 300 350 400 450 500

AMIN [mm] 95 113 131 148 166 184 152 188 223 258 294 329 365

BMIN [mm] 95 113 131 148 166 184 152 188 223 258 294 329 365

wood RV,k [kN] 10,9 13,0 15,2 17,4 19,6 21,7 25,3 31,7 38,0 44,3 50,7 57,0 63,3

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-12/0062. • Design values are obtained from the following characteristic values:

(1)

• • • •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-12/0062. In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. Sizing and verification of the wooden elements and steel plates must be done separately. The wood-wood extraction, shear and sliding values were calculated considering the centre of gravity of the connector placed in correspondence with the shear plane.

sg [mm] 380 480 580 680 780 880 980

wood RV,k [kN] 48,1 60,8 73,5 86,1 98,8 111,4 124,1

AMIN [mm] 280 350 420 490 570 640 710

(4)

(5)

/

/

/

The axial thread extraction resistance was calculated for an effective thread length of sg and is constant for an angle between the fibres and the connector between 45° and 90°. For intermediate sg values it is possible to interpolate linearly. The characteristic shear resistance values are calculated using an angle α between the force and the grain of 90°. The sliding design strength of the connector is the lower between the woodside design strength (RV,d) and the steel-side design strength (Rtens,d 45°).

/ (6)

(7)

41,30

The compression design strength of the connector is the lower between the wood-side design strength (Rax,d) and the instability design strength (Rki,d).

i (3)

-

The tensile design strength of the connector is the lower between the wood-side design strength (Rax,d) and the steel-side design strength (Rtens,d).

/ (2)

steel Rtens,k 45° (7) [kN]

/

The axial resistance of the thread to extraction was calculated considering a 45° angle between the fibres and the connector and for an effective thread length of sg. In the case of application with a steel plate, for proper execution of the joint, the connector head must be completely inserted in the plate. The connector tensile strength was calculated considering a 45° angle between the fibres and the connector.

WRT

157


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Calculation example: reinforcement for traction perpendicular to the fibres - tapered beam

PROJECT DATA B = 220 mm H0 = 650 mm Hap = 1175 mm α=5° Vb = 2,41 m3 Wood GL24h (ρk = 380 kg/m3)

Hap

H0

Map,Rd = 870,0 kNm Service class = 1 Load duration = short

Hap

VERIFICATION OF TRACTION PERPENDICULAR TO THE FIBRES - BEAM WITHOUT REINFORCEMENT - Apex area (EN 1995:2008): σt,90,d ≤ kdis · kvol · ft,90,d kp = 0,0175 σt,90,d = 0,30 N/mm2 V = 0,297 m3 ≤ 2/3 Vb V0 = 0,010 m3 kvol = 0,507 kdis = 1,40 (double tapered beams) ft,90,k = 0,40 N/mm2

EN 1995:2008

Italia - NTC 2008

kmod = 0,9 γm = 1,25 ft,90,d = 0,29 N/mm2 σt,90,d ≤ kdis · kvol · ft,90,d

kmod = 0,9 γm = 1,45 ft,90,d = 0,25 N/mm2 0,30 > 0,20 N/mm2

Verification not passed Requires reinforcement

σt,90,d ≤ kdis · kvol · ft,90,d

0,30 > 0,18 N/mm2

REINFORCEMENT CONNECTOR SELECTION WRT 13 x 1000 mm L = 1000 mm b = 980 mm To optimise resistance, the connector should be placed with the centre of gravity in correspondence with the possible crack line, near Hap / 2, Therefore take sg eff ≈ 400 mm.

158

WRT

Verification not passed Requires reinforcement


CARPENTRY

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WOOD/METAL

ACCESSORIES

CONNECTOR TENSILE STRENGTH CALCULATION (EN 1995:2008 and ETA-12/0062) The tensile strength of the connectors calculated here is shown in the table on pg. 156. The minimum distances for placement of the connectors are found in the table on pg. 154.

Rax,90°,Rk = 71,60 kN Rtens,k = 58,40 kN

EN 1995:2008

Italia - NTC 2008

Rax,Rd = 46,72 kN

Rax,Rd = 42,96 kN

kmod = 0,9 γm = 1,3 γm2 = 1,25 Rax,90°,Rd = 49,57 kN Rtens,d = 46,72 kN

kmod = 0,9 γm = 1,5 γm2 = 1,25 Rax,90°,Rd = 42,96 kN Rtens,d = 46,72 kN

REINFORCEMENT Central apex area - VERIFICATION OF TRACTION STRESS PERPENDICULAR TO THE FIBRES (DIN 1052:2008) 250 mm ≤ a1 ≤ 0,75 · Hap

a1 = 300 mm n=1 Ft,90,d = 19,85 kN Hap

Hap / 2

EN 1995:2008

Ft,90,d / Rax,Rd = 0,42

Verification passed

Italia - NTC 2008 Ft,90,d / Rax,Rd = 0,46

Verification passed

REINFORCEMENT Side apex area - VERIFICATION OF TRACTION STRESS PERPENDICULAR TO THE FIBRES (DIN 1052:2008) 250 mm ≤ a1 ≤ 0,75 · Hap

a1 = 350 mm n=1 Ft,90,d = 15,44 kN

Hap

Hap / 4

EN 1995:2008

Ft,90,d / Rax,Rd = 0,33

Verification passed

Italia - NTC 2008 Ft,90,d / Rax,Rd = 0,36

Hap / 2

Hap / 4

Verification passed

WRT

159


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

WB

Structural reinforcement system Carbon steel with white galvanic zinc coating

LARGE SIZES Diameters up to 20 mm and lengths up to 2200 mm

SPECIAL STEEL AND THREAD High tensile resistance steel (fy,k = 800 N/mm2) with wood thread

RAPID DRY SYSTEM Reinforcement bar with wood thread that does not require resin or adhesive

TECHNICAL ASSISTANCE Complete installation instructions and documentation online

FIELDS OF USE Solid-wood, glulam, X-Lam, LVL, wood-based panel reinforcements. Service classes 1 and 2

160

WB

ACCESSORIES


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

ANY SIZE The length of the bars allows for fast and secure reinforcements on any size beam

FAST USE The lack of adhesives or resins makes it possible to execute large reinforcements quickly while containing costs

Codes and dimensions d1 [mm] 16 20

L

code CS220016 CS220020

L [mm]

Ø hole [mm]

pcs/pckg

2200 2200

12 15

1 1

d1

Tools code

USE AS WB SCREWDRIVER

DUD38RLE DUD38SH ATCS2010 ATCS007 ATCS008 DUVSKU ATCS009 ATCS012 ATCS010 ATCS015

description

pcs/pckg

drill handle sleeve adaptor Ø16-20 sleeve Ø16 sleeve Ø20 safety clutch drill set Ø12 tip Ø12 x 400mm for ATCS009 drill set Ø15 tip Ø15 x 400mm for ATCS010

1 1 1 1 1 1 1 1 1 1

For 16 and 20 structural reinforcement bars

WB

161


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS WB CONNECTOR Nominal diameter Tip diameter Pre-bored hole diameter

L

d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength

d1

d1 [mm] d2 [mm] dV [mm]

16 12,0 12,0

My,k [Nmm]* f1,k [N/mm2]* ftens,k [kN]*

91204,4 91,5

20 15,0 15,0

70 · 10-6 · ρk 2

162922,8 145,0

* Comply with DIN 1052:2008 in accordance with Z-9.1-777

MINIMUM DISTANCES FOR AXIAL STRESSES (1) a2, CG a2 a2, CG a1, CG a1

a1 a2 a1,C a2,C

16 64 48 40 40

[mm] [mm] [mm] [mm]

20 80 60 50 50

MINIMUM DISTANCES FOR SHEAR LOADS (1)

Angle between strength and grain α = 0° a1 a2 a3,t a3,c a4,t a4,c

16 80 48 192 112 48 48

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

stressed end -90° < α < 90°

Means of connection

a2 a2 a1

a1

Angle between strength and grain α = 90°

20 100 60 240 140 60 60

16 48 48 112 112 112 48 discharged end 90° < α < 270°

a2 a2 a1

a1

162

a3,t

a3,c

The minimum distances are in accordance with the DIN 1052:2008 standard in accordance with Z-9.1-777.

WB

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t

NOTE (1)

20 60 60 140 140 140 60

a4,c


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

DIN 1052:2008

TRACTION (1) thread withdrawal (2)

steel traction

≥Sg

Sg

d1 [mm]

16

20

wood Rax,k [mm] 16,2 32,3 48,5 64,7 80,9 97,0 20,2 40,4 60,6 80,9 101,1 121,3 141,5 161,7

sg [mm] 100 200 300 400 500 600 100 200 300 400 500 600 700 800

steel Rtens,k [mm]

91,5

145,0

Corrective coefficient kF for different densities ρk ρk [kg/m3] kF

350 0,848

380 1,000

410 1,164

430 1,280

450 1,402

For different densities ρk the wood-side design resistance is calculated as: R‘ax,d = Rax,d · kF

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the DIN 1052:2008 standard in accordance with Z-9.1-777. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Sizing and verification of the wooden elements must be done separately.

(1)

The tensile design strength of the connector is the lower between the wood-side design strength (Rax,d) and the steel-side design strength (Rtens,d).

/ (2)

/

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For intermediate sg values it is possible to interpolate linearly.

WB

163


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

WS

EN 14592

Self-perforating dowel Carbon steel with white galvanic zinc coating

TECHNICAL ASSISTANCE Complete documentation and personalised consultation

SPEED AND PRECISION Quick fastening without pre-bored holes, with the possibility of simultaneous drilling of 1 to 3 steel plates

RIGIDITY AND DUCTILITY Very rigid joint system, thanks to the lack of play between the hole and dowel

OPTIMISED GEOMETRY Self-perforating wood-steel tip, cylindrical hidden head, underhead thread to make insertion easier and impede slippage

FIELDS OF USE Self-perforating system for wood-steel retractable junctions. Can be used with S235/St37/Fe360 steel with a maximum thickness of 10 mm (1 plate) or 5 mm (2 and 3 plates). Can be used with screwdrivers with 1500 rpm minimum. Service classes 1 and 2

164

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RIGID JOINTS The connectors allow for the creation of rigid joints able to transfer bending moment stresses (moment-resisting joints). The reduced diameter also guarantees excellent ductility, ideal for anti-earthquake designs

PROTECTED RETRACTABLE JUNCTIONS The connectors allow for the rapid and precise execution of retractable junctions on steel or aluminium alloy brackets (ALU brackets). The reduced dimensions allow for excellent fire protection

INTERLOCKING JOINTS The reduced diameter of the connector (7mm) and the rapid installation without pre-bored holes makes this system excellent for the creation of interlocking joints on one or more steel plates (e.g. X10 pillar bases)

WS

165


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Applications Rigid ”knee“ joint with double internal plate

ALU bracket fastening (without holes) for shear joint

Fastening of pillar base with internal plate for shear joints

Codes and dimensions d1 [mm]

d1 L

166

WS

7

TX40

code CS100165 CS100160 CS100240 CS100245 CS100215 CS100220 CS100225 CS100250 CS100255

L [mm]

pcs/pckg

73 93 113 133 153 173 193 213 233

100


CARPENTRY

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Application examples

Main-secondary joint with AluMIDI bracket.

Interlocking joint ”knee“ beam.

Interlocking joint straight beam.

Interlocking joint at the base with X10 pillar base.

WS

167


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Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR WOOD-STEEL-WOOD Vadm 1 INTERNAL PLATE (2 shear planes)

t

ta

ta

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

Beam width

b

[mm]

80

100

120

140

160

180

200

220

240

Exterior wood

ta

[mm]

37

47

57

67

77

87

97

107

117

Plate thickness

t

[mm]

5

5

5

5

5

5

5

5

5

2,65

3,37

3,85

4,04

4,04

4,04

4,04

4,04

4,04

30°

2,43

3,09

3,53

3,71

3,71

3,71

3,71

3,71

3,71

45°

2,32

2,95

3,37

3,54

3,54

3,54

3,54

3,54

3,54

60°

2,21

2,81

3,21

3,37

3,37

3,37

3,37

3,37

3,37

90°

1,99

2,53

2,89

3,03

3,03

3,03

3,03

3,03

3,03

Fastening

Vadm [kN]

Angle Force - Grain

b

2 INTERNAL PLATES (4 shear planes)

ta

t

ti

t

ta

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

Beam width

b

[mm]

80

100

120

140

160

180

200

220

240

Exterior wood

ta

[mm]

-

-

-

43

53

61

61

61

61

Interior wood

ti

[mm]

-

-

-

42

42

46

66

86

106

Plate thickness

t

[mm]

-

-

-

5

5

5

5

5

5

Fastening

Vadm [kN]

Angle Force - Grain

b

-

-

-

6,30

6,78

7,17

7,17

7,17

7,17

30°

-

-

-

5,78

6,22

6,57

6,57

6,57

6,57

45°

-

-

-

5,51

5,93

6,27

6,27

6,27

6,27

60°

-

-

-

5,25

5,65

5,97

5,97

5,97

5,97

90°

-

-

-

4,73

5,09

5,37

5,37

5,37

5,37

3 INTERNAL PLATES (6 shear planes)

ta

t t t ti ti ta

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

Beam width

b

[mm]

80

100

120

140

160

180

200

220

240

Exterior wood

ta

[mm]

-

-

-

-

-

39

49

59

61

Interior wood

ti

[mm]

-

-

-

-

-

42

42

42

50

Plate thickness

t

[mm]

-

-

-

-

-

5

5

5

5

-

-

-

-

-

9,09

9,71

10,19

10,29

30°

-

-

-

-

-

8,33

8,90

9,34

9,43

45°

-

-

-

-

-

7,95

8,50

8,92

9,00

60°

-

-

-

-

-

7,58

8,09

8,49

8,58

90°

-

-

-

-

-

6,82

7,28

7,64

7,72

Fastening

Vadm [kN]

b

Angle Force - Grain

NOTE • Allowable values in accordance with DIN 1052:1988. • The values provided are calculated using 5 mm thick plates and a 6 mm thick milled cut in the wood. • Maximum drill capacity for steel S235/St37/Fe360: - 3 plates, 5 mm thick - 1 plate, 10 mm thick

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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS WS CONNECTOR

dk

Nominal diameter Head diameter Tip length

d1

Characteristic yield moment

d1 [mm] dK [mm] Lp [mm]

7 11,00 12,00

My,k [Nmm]

31930

Lp

MINIMUM DISTANCES FOR CONNECTORS SUBJECTED TO SHEAR STRESS (1)

a1 a2 a3,t a3,c a4,t a4,c

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

7 35 21 80 21 21 21

7 21 21 80 21 28 21

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

stressed end -90° < α < 90°

Means of connection

a2 a2 a1

a1

discharged end 90° < α < 270°

a2 a2 a1

a1

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

NOTE (1)

Minimum distances in accordance with EN 1995:2008.

WS

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ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

SHEAR WOOD - STEEL -WOOD Rv,k INTERNAL PLATE (2 shear planes)

t

ta

ta

Fastening Beam width Exterior wood Plate thickness RV,k [kN]

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

b ta t

[mm] [mm] [mm] 0° 30° 45° 60° 90°

80 37 5 7,87 7,22 6,65 6,18 5,78

100 47 5 8,71 8,05 7,51 7,06 6,67

120 57 5 9,89 9,06 8,39 7,83 7,36

140 67 5 10,80 10,08 9,44 8,76 8,20

160 77 5 11,49 10,68 10,01 9,44 8,96

180 87 5 11,71 11,09 10,57 9,96 9,43

200 97 5 11,71 11,09 10,57 10,11 9,71

220 107 5 11,71 11,09 10,57 10,11 9,71

240 117 5 11,71 11,09 10,57 10,11 9,71

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

b ta ti t

[mm] [mm] [mm] [mm] 0° 30° 45° 60° 90°

80 -

100 -

120 -

140 40 48 5 17,80 16,26 14,99 13,94 12,99

160 40 68 5 19,77 18,61 17,62 16,79 15,78

180 55 58 5 21,34 19,41 17,78 16,43 15,29

200 65 58 5 22,37 20,52 18,80 17,34 16,11

220 65 78 5 22,37 21,05 19,78 18,68 17,73

240 75 78 5 23,05 21,65 20,47 19,45 18,57

WS

[mm]

7x73

7x93

7x113

7x133

7x153

7x173

7x193

7x213

7x233

b ta ti t

[mm] [mm] [mm] [mm] 0° 30° 45° 60° 90°

80 -

100 -

120 -

140 -

160 -

180 39 42 5 25,00 22,80 20,90 19,30 17,80

200 39 52 5 29,10 26,40 24,20 22,30 20,60

220 43 58 5 31,70 28,80 26,40 24,40 22,60

240 53 58 5 32,80 29,80 27,20 25,00 23,20

Angle Force - Grain

b

2 INTERNAL PLATES (4 shear planes)

ta

t

ti

t

ta

Fastening Beam width Exterior wood Interior wood Plate thickness RV,k [kN]

Angle Force - Grain

b

3 INTERNAL PLATES (6 shear planes)

ta

t t t ti ti ta

Fastening Beam width Exterior wood Interior wood Plate thickness RV,k [kN]

b

170

WS

Angle Force - Grain


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Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

Corrective coefficient kF for different densities ρk ρk [kg/m3]

350

380

410

430

450

kF

0,93

1,00

1,04

1,06

1,09

For different densities ρk the wood-side design resistance is calculated as: R V,d = RV,d · kF

Effective number of nef for a1 = 35 mm

Angle Force - Grain

n

1

2

3

4

5

0° 30° 45° 60° 90°

1,00 1,00 1,00 1,00 1,00

1,47 1,65 1,73 1,82 2,00

2,12 2,41 2,56 2,71 3,00

2,74 3,16 3,37 3,58 4,00

3,35 3,90 4,18 4,45 5,00

n

1

2

3

4

5

0° 30° 45° 60° 90°

1,00 1,00 1,00 1,00 1,00

1,61 1,74 1,80 1,87 2,00

2,31 2,54 2,66 2,77 3,00

3,00 3,33 3,50 3,67 4,00

3,66 4,11 4,33 4,55 5,00

Effective number of nef for a1 = 50 mm

Angle Force - Grain

In the case of multiple dowels placed parallel to the fibres, the effective number must be taken into account: R V,d = RV,d · nef

NOTE • Characteristic values comply with EN 1995:2008. • Design values are obtained from the following characteristic values:

• • • •

• In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Sizing and verification of the wooden elements and metal plates must be done separately.

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. The values provided are calculated with 5 mm thick plates and a 6 mm thick milled cut in the wood. Maximum drill capacity for steel S235/St37/Fe360: - 3 plates, 5 mm thick - 1 plate, 10 mm thick

WS

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VB

ETA 13/0699

Connector for wood-concrete floors Burnished carbon steel

CONSULTING Free software and personalised consultations to optimise fastenings

SPECIAL PERFORMANCE Optimum static and noise performance, both for new projects and structural restoration

RAPID DRY SYSTEM Approved system, self-perforating, reversible, extremely fast to install and minimally invasive

OPTIMISED GEOMETRY Self-perforating tip, hexagonal head and limiter ring to limit seepage

FIELDS OF USE Screw connection system for wood-concrete floors, approved for solid wood, glulam, X-Lam, LVL, and wood-based panels. Service classes 1 and 2

172

VB

ACCESSORIES


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ACCESSORIES

FLOOR SLAB The connectors placed at 45° in an “X” configuration make it possible to obtain perfect coupling and excellent static performance between the concrete slab and the wood beams

INSTALLATION The connectors are installed with a simple screwdriver, without any pre-bored holes and without interrupting the wooden planking. Installation is extremely fast (between 200 and 300 connectors an hour, on average)

STRUCTURAL RESTORATION The reduced diameter of the connector (7.5mm) and the dry installation (reversible) make the system minimally invasive and hence ideal for structural recovery and restoration

VB

173


STRUCTURES

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ACCESSORIES

Applications Rigid ”knee“ joint with double internal plate

Floor slab on X-Lam panel

Alternative placement near the walls for structural recovery

Codes and dimensions d1 [mm] 55

7,5

code CS100900 CS100905

Type

L [mm]

sg [mm]

7,5 x 100 7,5 x 165

155 220

95 135

s wooden planking [mm] 0 - 28 0 - 50

pcs/pckg 100

L

code

Sg

ATCS005 ATCS006 d1

174

VB

description

pcs/pckg

guiding slot E8 1/4 Torx Connector 6.35 (1/4)

1 1


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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS* dk L2

L2

ds

L1 Sg

d2 d1

L1

d3

Nominal diameter Head diameter Tip diameter Shank diameter Thread length Penetration length Upper length

d2 d1

Characteristic tensile strength

ds

dk

Sg

VB CONNECTOR

Sliding module

7,5 x 100

7,5 x 165

d1 [mm] dK [mm] d2 [mm] dS [mm] sg [mm] L1 [mm] L2 [mm]

7,5 12,00 4,30 6,10 95,0 100,0 45,0

7,5 12,00 4,60 6,00 135,0 165,0 45,0

ftens,k [kN] Kser 45°/135° [N/mm] Kser 45°/90° [N/mm]

16,0 240 · ℓ ef 100 · ℓ ef

17,0 240 · ℓ ef 100 · ℓ ef

* Values in accordance with ETA-13/0699

MINIMUM DISTANCES FOR AXIAL STRESSES (1) a2,c a2 a2,c a1,c

a1 a2 a1,C a2,C

a1

7,5 x 100 80 20 80 30

[mm] [mm] [mm] [mm]

7,5 x 165 80 20 80 30

RESISTANCE AS A FUNCTION OF THE PLANK THICKNESS* Plank thickness ts [mm] 0 10 20 28 40 50

Shear resistance (sliding) Tk for a pair of VB [kN] 7,5 x 100 7,5 x 165 16,6 18,1 14,6 18,1 12,6 18,1 11,0 18,1 17,1 15,1

Difference ΔTk 9% 24% 44% 61% -

* Values in accordance with Z-9.1-342.

NOTE (1)

The minimum distances for connectors stressed axially are independent of the insertion angle of the connector and the angle of the force with respect to the grain, in accordance with ETA-13/0699.

VB

175


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Preliminary sizing of VB connectors for wood - cement floors Calculation example: Distance between joists Concrete slab thickness C20/25 Strain limit Calculation standard

ACCORDING TO

EN 1995:2008

Loads: = 660 mm = 60 mm wist = ℓ/400 wnet,fin = ℓ/250 EN 1995:2008

own weight (gk1) permanent non-structural load (gk2) variable overload (qk)

= wood beam + wooden planking + cement slab = 2 kN/m2 = 2 kN/m2

CONNECTOR VB 7,5 x 100 - Glulam GL 24h (EN 1194) Plank thickness ts = 20 mm BEAM SECTION BxH [mm] 120 x 160 120 x 200 140 x 200 140 x 240

no. pairs per beam distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2

3,5 12 250/350 10,4 -

4 18 150/250 13,6 12 250/350 9,1 12 260/380 9,1

4,5 26 140/200 17,5 20 180/260 13,5 18 200/280 12,1

-

-

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

26 140/220 15,8 26 160/220 15,8 20 300/400 12,1

36 120/180 19,8 34 120/200 18,7 26 160/240 14,3

-

-

-

-

34 140/200 17,2

42 120/180 19,6

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

12 300/400 7,3 12 300/460 7,3 10 400/500* 6,1

20 200/400 11,0 16 240/340 8,8 12 300/500* 6,6

-

-

-

-

18 250/350 9,1

24 200/300 11,2

CONNECTOR VB 7,5 x 165 - Glulam GL 24h (EN 1194) Plank thickness ts = 40 mm BEAM SECTION BxH [mm]

3,5 7 500/500* 6,1

no. pairs per beam distance[mm] 120 x 160 no. connectors/m2 no. pairs 120 x 200 distance[mm] no. connectors/m2 no. pairs 140 x 200 distance[mm] no. connectors/m2 no. pairs 140 x 240 distance[mm] no. connectors/m2 * For safety, a maximum distance of 500 mm is used.

176

VB

4 10 300/500* 7,6 8 500/500* 6,1 8 500/500* 6,1

4,5 12 260/360 8,1 10 400/500* 6,7 10 400/500* 6,7

-

-


STRUCTURES

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ACCESSORIES

CONNECTOR VB 7,5 x 100 - Solid wood C24 (EN 338) Plank thickness ts = 20 mm BEAM SECTION BxH [mm]

3,5 8 300/400 6,9

no. pairs per beam distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2

130 x 130 140 x 160 160 x 200 180 x 180

-

4 14 180/280 10,6 10 260/380 7,6 9 400/400 6,8 10 350/400 7,6

4,5 22 140/200 14,8 16 180/260 10,8 12 300/400 8,1 12 250/350 8,1

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

24 140/200 14,5 18 200/300 10,9 20 180/260 12,1

32 120/180 17,6 26 160/220 14,3 28 140/200 15,4

-

-

34 120/200 17,2 36 120/180 18,2

46 100/150 21,4

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

12 280/400 7,3 10 450/500 6,1 10 400/500 6,1

20 180/260 11,0 12 340/460 6,6 12 280/400 6,6

-

-

-

CONNECTOR VB 7,5 x 165 - Solid wood C24 (EN 338) Plank thickness ts = 40 mm BEAM SECTION BxH [mm]

3,5 6 500/500 5,2

no. pairs per beam distance[mm] 130 x 130 no. connectors/m2 no. pairs 140 x 160 distance[mm] no. connectors/m2 no. pairs 160 x 200 distance[mm] no. connectors/m2 no. pairs 180 x 180 distance[mm] no. connectors/m2 * Strain limit w ist = ℓ/350

-

4 8 400/500 6,1 7 500/500 5,3 7 500/500 5,3 7 500/500 5,3

4,5 10 280/400 6,7 8 400/500 5,4 8 500/500 5,4 8 500/500 5,4

16 250/350 8,1 20 200/320 10,1

26 * 180/260 12,1

660 60 ts H

20 B

L/4 passo min

L/2 passo max

L/4 passo min

NOTE • Values obtained using HBV calculation software - Version 5.1.8 in accordance with Z-9.1-342 approval

VB

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ACCESSORIES

Preliminary sizing of VB connectors for wood - cement floors Calculation example: Distance between joists Concrete slab thickness C20/25 Strain limit Calculation standard

ACCORDING TO

NTC 2008

Loads: = 660 mm = 60 mm wist = ℓ/400 wnet,fin = ℓ/250 NTC 2008

own weight (gk1) permanent non-structural load (gk2) variable overload (qk)

= wood beam + wooden planking + cement slab = 2 kN/m2 = 2 kN/m2

CONNECTOR VB 7,5 x 100 - Glulam GL 24h (EN 1194) Plank thickness ts = 20 mm BEAM SECTION BxH [mm] 120 x 160 120 x 200 140 x 200 140 x 240

no. pairs per beam distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2

3,5 14 200/300 12,1 -

4 22 150/200 16,7 16 200/300 12,1 14 220/320 10,6

4,5 28 120/180 18,9 24 160/220 16,2 22 160/240 14,8

-

-

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

32 120/180 19,4 30 120/200 18,2 22 180/260 13,3

42 100/160 23,1 42 100/160 23,1 30 140/200 16,5

-

-

-

-

38 120/180 19,2

48 100/160 22,4

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

16 240/340 9,7 12 280/400 7,3 10 400/500* 6,1

24 180/260 13,2 20 200/300 11,0 14 280/400 7,7

-

-

-

-

20 220/320 10,1

28 180/260 13,1

CONNECTOR VB 7,5 x 165 - Glulam GL 24h (EN 1194) Plank thickness ts = 40 mm BEAM SECTION BxH [mm]

3,5 8 400/500* 6,9

no. pairs per beam distance[mm] 120 X 160 no. connectors/m2 no. pairs 120 X 200 distance[mm] no. connectors/m2 no. pairs 140 X 200 distance[mm] no. connectors/m2 no. pairs 140 X 240 distance[mm] no. connectors/m2 * For safety, a maximum distance of 500 mm is used.

178

VB

4 10 300/400 7,6 8 450/500* 6,1 8 500/500* 6,1

4,5 16 200/300 10,8 10 300/500* 6,7 10 400/500* 6,7

-

-


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

CONNECTOR VB 7,5 x 100 - Solid wood C24 (EN 338) Plank thickness ts = 20 mm BEAM SECTION BxH [mm]

3,5 10 250/350 10,1

no. pairs per beam distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2

130 x 130 140 x 160 160 x 200 180 x 180

-

4 18 150/200 15,6 14 200/300 12,1 9 400/400 7,8 10 300/400 8,7

4,5 26 120/180 19,7 22 150/200 16,7 12 240/340 9,1 16 200/300 12,1

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

28 120/180 18,9 22 160/240 14,8 24 140/220 16,2

44 100/120 26,7 28 140/200 17,0 32 120/180 19,4

-

-

42 100/160 23,1 42 100/150 23,1

54 80/140 27,3

Beam length L [m] 5

5,5

6

6,5

-

-

-

-

14 220/340 9,4 10 400/500 6,7 10 350/500 6,7

26 150/200 15,8 14 250/400 8,5 16 240/340 9,7

-

-

-

CONNECTOR VB 7,5 x 100 - Solid wood C24 (EN 338) Plank thickness ts = 40 mm BEAM SECTION BxH [mm]

3,5 6 500/500 6,1

no. pairs per beam distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2 no. pairs distance[mm] no. connectors/m2

130 x 130 140 x 160 160 x 200 180 x 180

-

4 8 360/500 6,9 7 500/500 6,1 7 500/500 6,1 7 500/500 6,1

4,5 14 200/300 10,6 10 300/400 7,6 8 500/500 6,1 8 400/500 6,1

20 200/300 11,0 24 180/260 13,2

32 140/200 16,2

660 60 ts H

20 B

L/4 passo min

L/2 passo max

L/4 passo min

NOTE â&#x20AC;˘ Values obtained using HBV calculation software - Version 5.1.8 in accordance with Z-9.1-342 approval

VB

179


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SKR ď&#x161;ş SKS Screw anchor for concrete

Carbon steel with white galvanic zinc coating

FAST INSTALLATION Cement screws for simple and fast assembly

SPECIAL THREADING Special thread for dry fastening without creating expansion stresses in the concrete

LARGER HEAD Larger head for stronger and safer fastening of the wood

ECO-FRIENDLY Trivalent Cr3+ chrome coating, replacing hexavalent chrome Cr6

FIELDS OF USE Fastening of wood or steel elements to concrete supports Service classes 1 and 2

180

SKR - SKS

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

DRY FASTENING The special thread allows for fast installation of wood or steel elements on concrete supports with a simple screwdriver and a small pre-bored hole

FAST AND STRONG FASTENING Versions with countersunk and hexagonal heads: the larger size of the head guarantees better shear resistance in fastening wood elements

REDUCED MINIMUM DISTANCES Fastening on reinforced concrete occurs without the creation of any expansion stresses in the concrete and allows for reduced minimum distances

SKR - SKS

181


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Applications Shear angular TITAN fastening on concrete

Fastening of insulation on a cement support using a counter batten Fastening of pillar base to the ground

600

The hexagonal-head version (SKR) is ideal for fastening plates or very thick wood. The countersunk head (SKS) is ideal for fastening wood elements and to guarantee an excellent visual finish.

500

1

Range

2 3 4 5 6 7

200

ø7,5 CH13

ø10

ø12

CH16

CH18

SKR

182

SKR - SKS

ø7,5 TX40

SKS

42 43 44 45 46 47 48 49 5 0 51 52 53 54 55 56 57 58 59 6 0

100

22 23 24 25 26 27 28 29 3 0 31 32 33 34 35 36 37 38 39 4 0 41

300

8 9 1 0 11 12 13 14 15 16 17 18 19 2 0 21

400


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Codes and dimensions SKR d1 [mm]

tfix

7,5

L

CH13 b d1

10

CH16

12

CH18

code SKR7560 SKR7580 SKR75100 SKR1080 SKR10100 SKR10120 SKR10140 SKR10160 SKR12100 SKR12120 SKR12140 SKR12160 SKR12200 SKR12240 SKR12280 SKR12320 SKR12400

L [mm]

b [mm]

t fix [mm]

pcs/pckg

60 80 100 80 100 120 140 160 100 120 140 160 200 240 280 320 400

50 50 80 50 80 80 80 80 80 80 80 80 80 80 80 80 80

10 30 20 30 20 40 60 80 20 40 60 80 120 160 200 240 320

100

L [mm]

b [mm]

t fix [mm]

pcs/pckg

60 80 100 120 140 160

50 50 80 80 80 80

10 30 20 40 60 80

50 50 25

25

NOTE: An alternative product with the CE mark is available upon request

Codes and dimensions SKS d1 [mm]

tfix L

7,5

b

TX40 d1

code SKS7560 SKS7580 SKS75100 SKS75120 SKS75140 SKS75160

100

50

Installation tfix

SKR - SKS

183


STRUCTURES

CARPENTRY

OUTDOOR

WOOD/METAL

ACCESSORIES

Geometry Ch

dk

k ds

ds L

L b

b

ANCHORS

Type

Nominal diameter Wrench Head thickness Head diameter Shank diameter Characteristic tensile strength *

SKR

d1 [mm] Ch [mm] k [mm] dK [mm] dS [mm] fu,k [N/mm2]

7,5 13 5,5 5,7 988

SKS

10 16 7,0 7,7 1068

12 18 8,0 9,4 1069

7,5 13,4 5,7 988

12 10,0 12,0 12,0 - 14,0 50,0

7,5 6,0 -

* Values in accordance with the certificate issued by Politecnico di Milano no. 2006/5205/1)

d1

d1

Installation ANCHORS

Type

Nominal diameter Diameter of pre-bored hole in concrete Diameter of hole in element to be fastened - wood Diameter of hole in element to be fastened - steel Tightening torque

Type

7,5 6,0 8,0 8,0 - 10,0 15,0

df [mm] T inst [mm]

d1 [mm]

L [mm] 60 80 100 80 100 120 140 160 100 120 140 160 200 240 280 320 400 60 80 100 120 140 160

7,5

10

SKR

12

SKS

SKR

d1 [mm] d0 [mm]

7,5

SKS

10 8,0 10,0 10,0 - 12,0 25,0 tfix [mm] 10 30 20 30 20 40 60 80 20 40 60 80 120 160 200 240 320 10 30 20 40 60 80

hnom [mm] 50 50 80 50 80 80 80 80 80 80 80 80 80 80 80 80 80 50 50 80 80 80 80

Tinst

L

h1

hnom d1 do

184

KEY

SKR - SKS

d0 = Diameter of pre-bored hole in concrete h1 = Hole depth hnom = Nominal anchoring depth df = Diameter of hole in element to be fastened tfix = Maximum fastening thickness Tinst = Tightening torque

c

s

KEY

s

df

c

tfix

h

h = Thickness of concrete support c = Distance from edge s = Centre Distance

h1 [mm] 60 60 90 65 95 95 95 95 100 100 100 100 100 100 100 100 100 60 60 90 90 90 90


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Carpenter statics

STATIC VALUES

RECOMMENDED

SHEAR RESISTANCE V - NON-CRACKED CONCRETE (1) Anchor Nominal diameter

SKS

d1 [mm]

7,5

10

12

7,5

V [kN]

2,50

6,65

8,18

2,50

Critical distance from edge

ccr,V [mm]

70

110

130

70

Minimum distance from edge

cmin,V [mm]

50

60

70

50

Critical centre distance

scr,V [mm]

140

200

240

140

Minimum centre distance

smin,V [mm]

50

60

70

50

Recommended resistance

(1)

SKR

Type

In evaluating the total resistance of the anchor, the shear resistance of the element to be fastened (e.g. wood, steel, etc.) should be evaluated according to the material used.

EXTRACTION RESISTANCE N - NON-CRACKED CONCRETE (2) Anchor Nominal diameter

(2)

SKR

Type

SKS

d1 [mm]

7,5

10

12

7,5

Recommended resistance

N [kN]

2,13

6,64

8,40

2,13

Critical distance from edge

c cr,N [mm]

50

70

80

50

Minimum distance from edge

c min,N [mm]

50

60

65

50

Critical centre distance

s cr,N [mm]

100

150

180

100

Minimum centre distance

s min,N [mm]

50

60

65

50

Minimum centre distance

smin,V [mm]

50

60

70

50

In evaluating the total resistance of the anchor, the axial resistance of the element to be fastened (e.g. wood, steel, etc.) should be evaluated according to the material used.

RESISTANCE TO HEAD PENETRATION N - WOOD ELEMENT TO BE FASTENED Anchor Nominal diameter

Type

SKR WITH WASHER DIN 9021

d1 [mm]

7,5

10

12

Recommended resistance

N [kN]

1,19

1,86

2,83

Anchor

Type

Nominal diameter

SKR WITH WASHER DIN 440

d1 [mm]

7,5

10

12

Recommended resistance

N [kN]

1,66

2,44

4,13

Anchor

Type

SKS

Nominal diameter Recommended resistance

d1 [mm]

7,5

N [kN]

0,72

NOTE • The recommended extraction and shear values are in accordance with Certificate no. 2006/5205/1 issued by Politecnico di Milano. • The recommended extraction and shear values derive from tests on C20/25 non-cracked concrete, without the influence of edge and/or centre-distance effects • The recommended values for extraction and shear are obtained considering a safety coefficient of 4 on the ultimate load at failure.

SKR - SKS

185


186


187

3. OUTDOOR


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

WOOD SPECIES Timber cladding is appropriate for any environment: the variety of wood species makes it possible to perfectly meet the design and aesthetic requirements. rch La Larix

Sib

e

2

O

Iroko

p Entandro

Fagus sylvatica

2

ylindricum

Oak

us uerc

aea

petr

Q

Ash

lsior Fraxinus exce

k Tea dis

a ton e c T

n gra

ga i lin ichi i B r r

de

cle

u Na

Dic

M

LI MA R E TH

ory

D ATE e Pin s

GN PRE

ri

st ylve us s

Pin

D

osit e

NA TE D ic C WP om C p

TE LA Y T

Pla st Wo od

TH

ER MA L

IM

PR

EG

E AC

188

B

i ad

nia asra gu loc ian us en sis Rob B l a ck l inia o pse udo cust acac ia

hragma c

Beech

5

Sapele

6

petraea

5

Milicia excelsa

3

Ocot cotea ea ru bra

/m 3 ]

4

105 0

[Kg

115 0

950

850

750

650

ITY

Oak

Quercus

750 800

1

550

NS

650 700

3

P sylve ine stris

DE

6

4

ATE D

4

5

PRO XIM ATE

IGIN TE DENSITY 55 OR XIMA O R P AP 00

6

AP

HEA T-TR E Pinu s

r La ian rix la sib rch iric Mo nte a Pin rey p us rad ine iata


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

6 4

400 450 500 550

r da us e C dr 5

ORI GIN ITY 300 - 5 S N E D 5 E 0 4 [Kg AT 350 IM /m OX

2

5

Ce

3

3

6

]

AP PR

1

4

ce Spru bies a Pice

7

a

5

Okoumé Aucoumea klaineana

1

50 - 8 00 [ K

g/m 3 ]

Dou

Pseu glas fir dots uga m

enzi

EN IMATE D SITY 800 ROX -1

u rba ga Me ia biju ts

6

3

m g/ [K

In

7

]

85 0 90 0 95 10 0 00

O 00 RI 0

N GI

P AP

esii

ptus Eucaly tus

3

p Eucaly

7 3

Garapa

Apuleia leiocarpa 5

Wen gé

Mille 6

ttia la

Ba

6

Bam

uren

mb

bu

tii

oo e

S

ai is kir ev ng a la Ba ore h

sea

3

ra n sa bide s a a

M lkar ni

Ma

[K g/ m3 ]

a ub nd tata

2

3

ia Tabebu

2

Ipe

6

1

2

3

C

um ryx od aru orata

Dipte

50 10 100 1 150 1 200 1 250 1 300 1 350 1

AP 0 PR 00 OXI 1 > OR MATE DENSITY IGI N

NOTE This list is not intended to be exhaustive, but merely to provide some indications regarding the most common types of wood.

189


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

WOOD: NATURAL MATERIAL Wood is a living material and due to its nature is subject to change over time: Movement and shrinkage Colour changes Biological degradation

1

MOVEMENT, SHRINKAGE

Proper selection of a wood species and wooden-plank quality on the basis of the design needs can avoid shrinkage, swelling, various deformations between elements and warping. These problems can compromise the proper functioning of the fastening system.

190

TIME OF CONSTRUCTION

3 YEARS LATER

ACCESSORIES


CARPENTRY

2

OUTDOOR

STRUCTURES

COLOUR CHANGE OVER TIME

3

Wood is a living material that changes over time. When choosing a wood species and fastening, it is also important to consider colour changes. NEW

WOOD/METAL

12 MONTHS LATER

ACCESSORIES

BIOLOGICAL DEGRADATION

Wood is a natural material and as such it can be attached by xylophage insects or fungi. It is important to choose a material with a durability class appropriate for the environment in which it will be used and that avoids localised increases in humidity.

191


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

CONSTRUCTION DETAILS Attention to detail guarantees the durability, appearance and stability of the cladding and also allows for the prevention of problems related to rot, cracks or deformation.

1

2

5

3 4

6

192


CARPENTRY

1

DISTANCE BETWEEN PLANKS ≥7 ≥7 ≥7 mm mm mm ≥7 mm

mm

≥20 mm

≥7 mm

3

LATERAL DISTANCE

WOOD/METAL

UNDERBOARD VENTILATION

5

ACCESSORIES

SELECTION OF FASTENINGS

≥20 ≥20 ≥20 mm mm mm

≥7 ≥7 ≥7 mm mm mm ≥20 mm

• allow for the wood to move • avoid the accumulation of water or rot at the head of the planks • avoid accumulation of dirt

2

OUTDOOR

STRUCTURES

• avoid the accumulation of water and humidity • allow for the wood to move • avoid direct contact between the elements

4

• guarantee aesthetics • visible or hidden fastening

6

STATIC RESISTANCE OF THE CLADDING

POSITIONING OF FASTENINGS a

≥20 mm

a a

• allow for the wood to move • avoid standing water • avoid the localised accumulation of humidity in the wood • avoid accumulation of dirt

• avoid cracking of the planks • guarantee static hold

• guarantee safety and stability • plan for an appropriate centre distance between the substructure elements (40÷60 cm) • verify that the substructure is appropriately level • use the same material for the cladding and substructure

193


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

SELECTION OF THE FASTENING - THE RANGE The wide selection of connectors makes it possible to meet varying design and aesthetic requirements. The diverse combination of mechanical and geometric characteristics makes it possible to offer a complete array of solutions.

Ø 3,5 Ø 4,0 Ø 4,5 Ø 5,0 Ø 5,5 Ø 6,0 Ø 6,5 Ø 8,0

194

KKT A4

KKT A4 color

KKTX

SCI A4

mini WT

SCI A2

KKF

austenitic stainless steel A4

austenitic stainless steel A4

austenitic stainless steel A4

austenitic stainless steel A4

austenitic stainless steel A2

austenitic stainless steel A2

martensitic stainless steel AISI 410


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

HZK

EWS

HBS+evo

KKT color

SHS AS

SCS

mini WT

martensitic stainless steel AISI 410

martensitic stainless steel AISI 410

carbon steel with revodip coating

carbon steel with organic coating

martensitic stainless steel AISI 410

bimetal (A2 steel and carbon steel)

carbon steel with durocoat

Ø 3,5 Ø 4,0 Ø 4,5 Ø 5,0 Ø 5,5 Ø 6,0 Ø 6,5 Ø 8,0

195


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

SELECTION OF THE FASTENING WOOD SPECIES The complete array of screws makes it possible to find the appropriate solution for various combinations of materials and densities, according to the wood species. A pre-bored hole during screwing is necessary when the density of the material could compromise the functionality of the connector.

DENSITY ď&#x161;°Kg/m3]

WOOD SPECIES

KKT A4 color

KKTX

KKT A4

SCI A4

austenitic stainless steel A4

austenitic stainless steel A4

austenitic stainless steel A4

austenitic stainless steel A4

300 - 550

Continental wood 4

1 2

1

6

4

6

800 - 1000 > 1000

5 3

550 - 800

300 - 550 7

550 - 800

Tropical wood 2

3

5

7

800 - 1000 > 1000

Heat-treated wood

550 - 800

Thermal impregnated wood

550 - 800

Acetylated wood

550 - 800

Wood plastic composite (WPC)

196

300 - 550

800 - 1000 > 1000

use allowed

use allowed with pre-bored hole

use not allowed but possible with special precautions

use not recommended


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

mini WT

SCI A2

KKF

EWS

SHS AS

HBS+evo

KKT color

mini WT

HBS

austenitic stainless steel A2

austenitic stainless steel A2

martensitic stainless steel AISI 410

martensitic stainless steel AISI 410

martensitic stainless steel AISI 410

martensitic stainless steel AISI 410

carbon steel with organic coating

carbon steel with durocoat

carbon steel with galvanic zinc coating

197


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

SELECTION OF THE FASTENING ENVIRONMENT

EWS

stainless steel A2

stainless steel A2

stainless steel AISI 410

stainless steel AISI 410

SHS AS

HBS+ evo

KKT color

mini WT

HBS

galvanized carbon steel

KKF

carbon steel with durocoat

SCI A2

painted carbon steel

mini WT

carbon steel with revodip

SCI A4

stainless steel AISI 410

KKTX

stainless steel A4

stainless steel A4

APPLICATION

stainless steel A4

A4 KKT A4 KKT color

stainless steel A4

The work is inserted in a context which cannot be ignored and with which it interacts: understanding the location and use of the timber cladding is fundamental for selecting appropriate fastenings that guarantee performance over time.

HORIZONTAL CLADDING (e.g. patio) VERTICAL CLADDING (e.g. façade)

CORROSION CLASS ENVIRONMENTAL EN 12944 C1 indoor environments C2 rural areas C3 urban and industrial environments C4 industrial and coastal areas C5 areas with aggressive atmospheres

use allowed use not allowed but possible with special precautions

198

use not recommended


CARPENTRY

SERVICE CLASS

OUTDOOR

STRUCTURES

A4 KKT A4 KKT color

KKTX

SCI A4

mini WT

SCI A2

WOOD/METAL

KKF

EWS

SHS AS

ACCESSORIES

HBS+ evo

KKT color

*

*

mini WT

HBS

Service class 1 Service class 2 Service class 3

* Coating equivalent to Fe/Zn 25c

USE CLASS Use class 1 Use class 2 Use class 3 Use class 4 Use class 5

EN 1995-1-1 ENVIRONMENT SERVICE CLASSES

EN 335 WOOD USE CLASSES

1

temperature 20° / 65% humidity u ≈ 12% all internal rooms

1

wher the wood is inside a building, not exposed to weather

2

temperature 20° / 55% humidity u ≈ 18% elements protected from direct exposure to weather

2

where the wood is protected and not exposed to weather, but where high ambient humidity may occur

3

where the wood-based material is not in direct contact with the ground and is exposed to weather

4

where the wood is in direct contact with the ground and fresh water

5

where the wood is permanently or regularly immersed in salt water

3

climate more humid than class 2 humidity u > 20% “wet” elements

199


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

MATERIALS AND COATINGS The vast and diverse array of materials and coatings means an appropriate fastening for the desired application can always be found.

KKT A4 KKT A4 color KKTX

AISI 316 (A4) SCI (A4)

SCI (A2)

AUSTENITIC AISI 304 (A2)

MINI WT (A2)

AISI 304 (A2) and carbon steel (tip)

STAINLESS

SCS bimetal

KKF HZK

MARTENSITIC

AISI 410

STAINLESS

EWS

SHS AS

APPROPRIATE SURFACE COATING (for service class 3) KKT color

CARBON

200

DUROCOAT

MINI WT

GALVANIC ZINC COATING

HBS

CORROSION RESISTANCE

HBSP EVO


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

CONNECTOR RESISTANCE

corrosion resistance

The selection of the material of the connector and its coating is based on the static requirements and the aggressiveness of the environment. The best compromise between mechanical resistance and corrosion resistance must be found.

10

KKT A4 / KKTX KKT A4 color

SCI A4

9

8

high

7

SCI A2

mini WT A2

6

KKF

EWS

5

KKT color

medium

4

HBSP evo

3

mini WT 2

low

1

0 0

1

HBS

medium high 2

3

4

5

6

7

8

9

10

mechanical resistance

201


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

GUARANTEED RESULTS AT THE RIGHT PRICE The fastening has a marginal impact on the total cost of the coating, but has a notable impact on its durability and the quality of the work over time.

IMPACT OF FASTENINGS

cladding

high cost cladding

medium cost cladding

low cost 0

0,5

wood

202

installation

1

fastening

1,5

2

2,5


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

How much does timber cladding cost? What is the

influence (almost 75% for ”high-cost” cladding).

impact of the various factors on the final price? How

Installation is related to the wood species used, the

much is the right amount to spend for satisfactory

complexity of the cladding and the type of fastening,

results?

and affects the final cost in a variable manner (up to a maximum of 35% for ”low-cost” cladding).

The cost of timber cladding is connected to the

On the other hand, the connectors have a marginal

material chosen for the planks and the substructure,

impact on the final price. For example, for ”medium-

the connectors used for fastening and the installation.

cost” cladding, the impact of the connectors ranges

For ”low cost” cladding, the supply and installation are

from 4-6%, according to the type of screws selected.

assigned a unit price.

This means the most appropriate connector for the

”Medium cost” cladding involves a greater expense

application can be selected freely, in the knowledge

(around 1.5 times more), while ”high cost” cladding is

that the final cost of the cladding will not change in

the most expensive (over double).

a substantial manner.

Comparing the factors that impact on the final cost, it is clear that the choice of material has the greatest

TYPE OF CLADDING ANALYSED: • 118 x 25 mm wooden planks, placed with 7 mm spaces • substructure of 60 x 40 mm wooden battens, placed at a distance of 0.5 m • plank material = substructure material

7 mm 118 mm 40 mm

25 mm 60 mm 0,5 m

203


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

CORROSION Corrosion is a chemical interaction between a material and the surrounding environment that leads to degradation of the material and its properties, so far as to compromise its functionality.

Good corrosion resistance is an indispensable

SALT SPRAY TESTS

requirement for elements used in service class 3 (exterior environments) to last over time. This is

To monitor the behaviour of connectors and

optimised through appropriate techniques that

compare the various claddings, they were exposed

make it possible to avoid static and/or aesthetic

to salt spray for long periods (ISO 9227). These tests

problems and the consequent maintenance.

do not reproduce the true behaviour of the screw, in that they accelerate the degradation aggressively, in an amplified and unnatural way, but they make it possible to compare the corrosion resistance of various materials and metal coatings under given experimental conditions. Degradation of the connector occurs in:

204

DAYS/HOURS

YEARS

SALT SPRAY

REAL CONDITION


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

SCREW TESTED: KKTM Ø5 carbon steel with organic coating HOURS EXPOSED: 1440 h COMMENTS AT CONCLUSION OF TEST: No red rust appeared after 1440 hours. This coating guarantees high durability performance appropriate for a C5 class environment in accordance with the UNI EN ISO 12944 standard.

SCREW TESTED:

End of test

1

ROTHOBLAAS SCREW

2

OTHER SCREW

1. HBS+ evo Ø5 carbon steel with revodip coating HOURS EXPOSED: 1440 h 2. Connector with zinc coating Fe/Zn 25 μ HOURS EXPOSED: 520 h COMMENTS AT CONCLUSION OF TEST: Comparing the behaviour of the two connectors, it is clear that the HBS+ evo screws guarantee better corrosion resistance with

End of test

End of test

respect to that of the connector with theFe/Zn 25*

* Minimum coating envisaged for connectors in service class 3 (EN 1995-1-1:2008)

205


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

RESEARCH PROJECTS To evaluate the real behaviour of connectors, research projects are in course based on experimental campaigns that examine the connectors in various configurations.

206


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Research project at Centro de Innovación e Servizos

The experimental campaign is carried out on

Tecnolóxicos da Madeira de Galicia

samples of a natural size, placed both horizontally

(CIS-Madeira) (www.cismadeira.es) begun in March

and vertically and exposed to weather.

2012 and still under way.

Patio and façade elements are created with different

Mechanical behaviour is studied and the change

wood species (including acetylated wood and heat-

of various connectors used on wood cladding is

treated wood).

observed (mainly KKF, KKT color, KKT A4).

FAÇADE - fastening with KKT screws

PATIO - fastening with KKT screws

207


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

KKT

ETA 11/0030

Exterior screws, conical head Available in carbon steel with organic coating and in A4 stainless steel

UNDERHEAD COUNTER-THREAD Inverse underhead thread (left-handed) for excellent grip

TRIANGULAR THREAD Front triangular thread for excellent grip and wood penetration

CONICAL HEAD Small conical head to ensure it is hidden in the wood

COLOURS AND MATERIALS Available in carbon steel with special coating and in A4 stainless steel

FIELDS OF USE Exterior use; appropriate for service classes 1-2-3

208

KKT - KKTX

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

INVISIBLE HEAD Aesthetically pleasing and longlasting fastening, thanks to the extremely small conical head that becomes ever less visible in the wood as time goes on

TIGHTENING FORCE The inverse underhead thread generates excellent grip capacity for the screw, which allows for perfect closure of the joint as well as stable fastening. The doublenotched tip increases this eďŹ&#x20AC;ect.

AGGRESSIVE ENVIRONMENTS A4 stainless steel screws guarantee excellent resistance to corrosion even in very aggressive environments. The A4 version with a coloured head is ideal for invisible fastening.

KKT - KKTX

209


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Applications Façade fastening with the stainless steel version

Patio fastening with the carbon steel version Façade with horizontal battens fastening with the stainless steel version

Range The carbon steel version with organic coating is available in five different colours and includes a self-perforating tip with a double notch that increases the capacity to cut the fibres during tightening. The A4 stainless steel version includes a self-perforating tip with a single notch and is also available with a brown or grey coloured head. The total thread version is recommended for fastenings coupled with connectors for patios and façades. For all versions, the bit is included in each box. 120 100 80 60 40 20

ø5

TX20

ø6

TX25

ø5

TX20

ø5

TX20

Galvanized carbon steel with coloured organic coating

210

KKT - KKTX

ø5

TX20

ø5

TX20

ø5

TX20

ø5

TX20

ø6

TX25

Stainless steel A4

ø5

TX20

ø5

TX20


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Codes and dimensions KKT GALVANIZED COLOURED CARBON STEEL d1 [mm]

5

L

TX20

b d1 6

TX25

5

A

TX20

5

TX20

5

TX20

5

TX20

code KKTM540 KKTM545 KKTM550 KKTM555 KKTM560 KKTM565 KKTM570 KKTM580 KKTM660 KKTM680 KKTM6100 KKTM6120 KKTG540 KKTG545 KKTG550 KKTG555 KKTG560 KKTG565 KKTG570 KKTG580 KKTV540 KKTV550 KKTV560 KKTV570 KKTV580 KKTS540 KKTS550 KKTS560 KKTS570 KKTS580 KKTN540* KKTN550 KKTN560

L [mm]

colour

40 45 50 55 60 65 70 80 60 80 100 120 40 45 50 55 60 65 70 80 40 50 60 70 80 40 50 60 70 80 40 50 60

material

b [mm]

T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T

24 27 30 33 35 37 40 45 42 50 50 60 24 27 30 33 35 37 40 45 24 30 35 40 45 24 30 35 40 45 36 30 35

material

b [mm]

S S S S S S S S S S S S S S S S

16 21 26 36 24 27 30 33 35 37 40 45 42 50 50 60

material

b [mm]

A [mm]

S S S S S S S S

24 30 35 40 30 35 40 45

16 20 25 30 20 25 30 35

A [mm]

pcs/pckg

16 18 20 200 22 25 28 30 100 35 18 30 100 50 60 16 18 20 200 22 25 28 30 100 35 16 20 200 25 30 100 35 16 20 200 25 30 100 35 4 200 20 25 * Screw with total thread (KKTX type)

KKT STAINLESS STEEL A4 d1 [mm]

5

TX20

5

TX20

6

TX25

code KKTX520A4* KKTX525A4* KKTX530A4* KKTX540A4* KKT540A4 KKT545A4 KKT550A4 KKT555A4 KKT560A4 KKT565A4 KKT570A4 KKT580A4 KKT660A4 KKT680A4 KKT6100A4 KKT6120A4

L [mm]

colour

20 25 30 40 40 45 50 55 60 65 70 80 60 80 100 120

A [mm]

pcs/pckg

4 100 4 250 4 100 4 100 16 18 20 200 22 25 28 30 100 35 18 30 100 50 60 * Screw with total thread (KKTX type)

KKT STAINLESS STEEL A4 WITH COLOURED HEAD d1 [mm]

5

T = Galvanized carbon steel with coloured organic coating S = Stainless steel A4 The 5x45, 5x55 and 5x65 measures are available while stock lasts

TX20

5

TX20

code KKT540A4M KKT550A4M KKT560A4M KKT570A4M KKT550A4G KKT560A4G KKT570A4G KKT580A4G

L [mm] 40 50 60 70 50 60 70 80

colour

pcs/pckg 200 100 200 100

KKT - KKTX

211


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OUTDOOR

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WOOD/METAL

ACCESSORIES

Applications Fastening, FLAT connector with KKTN screws

Fastening, TVM connectors with KKTX screws Fastening, TERRALOCK and VERTILOCK connectors with KKTX, KKT A4 and KKTN screws

Hidden connectors for patios and faรงades connector

FLAT TVM1 TVM2

TERRALOCK

VERTILOCK

212

KKT - KKTX

code FLT6427N FE010405 FE010400 TER60A2 TER180A2 TER60ALU TER180ALU TER60ALUN TER180ALUN VRT60A2 VRT60ALU VRT60ALUN

L x B x H [mm] description 64 x 27 x 4 32 x 22 x 3 34 x 23 x 2,5 60 x 20 x 8 180 x 20 x 8 60 x 20 x 8 180 x 20 x 8 60 x 20 x 8 180 x 20 x 8 60 x 20 x 8 60 x 20 x 8 60 x 20 x 8

pcs /pckg.

black aluminium metal connector for grooved wooden planks

100

A2 stainless steel connector for asymmetrically grooved wooden planks

250

metal connector in stainless steel A2 for wooden patios (short version) metal connector in stainless steel A2 for wooden patios (long version) aluminium connector for wooden patios (short version) aluminium connector for wooden patios (long version) black aluminium connector for wooden patios (short version) black aluminium connector for wooden patios (long version) A2 stainless steel connector for wooden faรงades aluminium connector for wooden faรงades black aluminium connector for wooden faรงades

100 50 100 50 100 50 100 50 100


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD

STEEL-WOOD

d1 [mm]

L [mm]

Vadm

d1 [mm]

L [mm]

Vadm

KKT 5

≥ 50

43 kg

KKTX 5

≥ 40

53 kg

KKT 6

≥ 80

61 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

25

30

40

50

60

70

80

100

120

KKT 5

-

-

60 kg

75 kg

88 kg

100 kg

113 kg

-

-

KKT 6

-

-

-

-

126 kg

-

150 kg

150 kg

180 kg

KKTX 5

53 kg

65 kg

90 kg

-

-

-

-

-

-

HEAD PENETRATION including UPPER THREAD WITHDRAWAL Nadm d1 [mm]

Nadm

KKT 5

36 kg

KKT 6

47 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The KKT screws with twin thread are mainly used for wood-wood joints. • The KKTX total thread screws are mainly used for steel plates (e.g. Terralock patio system). • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

• The allowable penetration values are calculated also considering the underhead thread, in accordance with ”Prüfbericht Nr.116108“ of Karlsruher Institut für Technologie (KIT).

KKT - KKTX

213


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WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS d dkk

LL

KKT/KKTX SCREWS Material Screw diameter Nominal diameter Head diameter Tip diameter Shank diameter Pre-bored hole diameter * Notched tip

d dss b b d d22 d1 d1

KKT

Ø [mm] d1 [mm] dK [mm] d2 [mm] dS [mm] dV [mm]

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

dkk dss Lb

My,k [Nmm] fax,k [N/mm2] fhead,k [N/mm2] ftens,k [kN]

Carbon steel 5 6 5,25 6,00 6,75 7,75 3,40 3,90 4,05 4,50 3,0 - 4,0 4,0 - 5,0 double

Stainless steel 5 6 5,25 6,00 6,75 7,75 3,40 3,90 4,05 4,50 3,0 - 4,0 4,0 - 5,0 single

5417,2 11,7 16,5 7,9

5417,2 11,7 16,5 7,9

9493,7 11,7 16,5 11,3

9493,7 11,7 16,5 11,3

* For high density materials, pre-bored holes are recommended based on the wood species.

d22 d 11

KKTX

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES (1) a1 a2 a3,t a3,c a4,t a4,c

5 25 15 60 35 15 15

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

6 30 18 72 42 18 18 stressed end -90° < α < 90°

Means of connection

a2 a2 a1

5 20 20 35 35 35 15 discharged end 90° < α < 270°

a2 a2

a1

a1

a1

6 24 24 42 42 42 18

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a4,c

a3,c

SCREWS INSERTED WITHOUT PRE-BORED HOLES (2) a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

5 40 20 60 25 25 20

6 48 24 72 30 30 24

NOTE (1)

(2)

214

The minimum distances comply with the EN 1995:2008 standard in accordance with ETA-11/0030. The minimum distances are in accordance with ETA-11/0030 considering wood elements with a minimum width of 12 ·d and a minimum thickness of 4 · d. In the case in which these conditions are not respected, please see the KKF screw (pg 227) for the minimum distances.

KKT - KKTX

• In the case of Douglas fir elements (Pseudotsuga menziesii), the minimum distances parallel to the grain (a1, a3,t, a3,c) must be multiplied by a coefficient of 1.5.


CARPENTRY

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ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008

KKT

SHEAR geometry

TRACTION

wood-wood without pre-bored hole

wood-wood with pre-bored hole

thread withdrawal (1)

head penetration including upper thread withdrawal (2)

RV,k [kN] 1,13 1,17 1,22 1,28 1,36 1,45 1,45 1,45 1,53 1,87 2,03 2,03

RV,k [kN] 1,46 1,54 1,63 1,72 1,75 1,75 1,75 1,75 2,01 2,50 2,50 2,50

Rax,k [kN] 1,62 1,83 2,03 2,23 2,37 2,50 2,71 3,05 3,41 4,06 4,06 4,87

Rhead,k [kN] 0,87 0,87 0,87 0,87 0,87 0,87 0,87 0,87 1,15 1,15 1,15 1,15

A

L

b

d1

d1 [mm]

5

6

L [mm] 40 45 50 55 60 65 70 80 60 80 100 120

b [mm] 24 27 30 33 35 37 40 45 42 50 50 60

A [mm] 16 18 20 22 25 28 30 35 18 30 50 60

KKTX geometry

SHEAR

TRACTION

intermediate steel-wood plate (3)

thread withdrawal (1)

RV,k [kN]

Rax,k [kN] 1,08 1,42 1,76 2,44

Lb

d1 [mm]

5

L [mm] 20 (4) 25 (4) 30 (4) 40

b [mm] 16 21 26 36

SPLATE = 3,0 mm

d1

0,87 1,08 1,30 1,73

PRINCIPI GENERALI

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

• • • • • •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 420 kg/m3. Values were calculated considering the threaded part as being completely inserted into the wood. Sizing and verification of the wooden elements and steel plates must be done separately. The KKT screws with twin thread are mainly used for wood-wood joints. The KKTX total thread screws are mainly used for steel plates (e.g. Terralock patio system).

(2)

(3)

(4)

The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. The axial resistance to head penetration was assessed for the wood element also considering the underhead thread, in accordance with ”Prüfbericht Nr.116108“ of Karlsruher Institut für Technologie (KIT) and ETA-11/0030. The shear resistance characteristics are calculated considering the case of an intermediate plate (0.5 d1 ≤ SPLATE ≤ d1). This screw has not been granted the CE marking.

KKT - KKTX

215


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WOOD/METAL

HBS + evo Exterior screws, pan head Carbon steel with revodip coating

SPECIAL THREADING Longer length (60%) asymmetric ”umbrella“ thread

SPECIAL STEEL Highly ductile (moves with the wood) and resistant steel (fy,k = 1000 N/mm2)

PAN HEAD Guarantees an excellent surface finish and the possibility of usage on steel plates with circular holes

REVODIP COATING Surface treatment with high corrosion resistance, comparable to class C5

FIELDS OF USE Exterior use; appropriate for service classes 1-2-3

216

HBS+ evo

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

AESTHETICS The pan head with flat under head compresses the fibres at the end of the joint, guaranteeing a perfect aesthetic finish

STATIC SAFETY The special high resistance steel guarantees the possibility of safe joints with high static performance under all service conditions (service classes 1-2-3)

STEEL â&#x20AC;&#x201C; WOOD Ideal for use on steel plates with circular holes and hence for exterior fastening systems in service class 3 (pillar bases)

HBS+ evo

217


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Applications Sleeve pillar-base fastening in stainless steel Adjustable pillar-base fastening in stainless steel with dacromet coating Fastening of diagonal element to an exterior pergola

Codes and dimensions d1 [mm]

L b d1

A

218

HBS+ evo

code HBSP4540C HBSP4545C HBSP4550C HBSP4560C HBSP4570C HBSP550C HBSP560C HBSP570C HBSP580C HBSP590C HBSP5100C HBSP680C HBSP690C HBSP6100C HBSP6120C HBSP6140C HBSP6160C HBSP6180C HBSP6200C HBSP840C HBSP860C HBSP880C

L [mm]

b [mm]

40 24 45 30 4,5 50 30 TX20 60 35 70 40 50 30 60 35 70 40 5 80 50 TX25 90 55 100 60 80 50 90 55 100 60 120 75 6 140 80 T30 160 90 180 100 200 100 40 32 8 60 52 TX40 80 52 Black galvanic zinc coating version available in 8x40mm (NOHBSP840) and 8x60mm (NOHBSP860)

A [mm]

pcs/pckg

16 15 20 25 30 20 25 30 30 35 40 30 35 40 45 60 70 80 100 10 20 30

500 250 200 200

100

100

100


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD

STEEL-WOOD

d1 [mm]

L [mm]

Vadm

d1 [mm]

L [mm]

Vadm

4,5

≥ 50

34 kg

4,5

≥ 40

43 kg

5

≥ 60

43 kg

5

≥ 50

53 kg

6

≥ 80

61 kg

6

≥ 80

77 kg

8

≥ 80

90 kg

8

≥ 40

136 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

40

45

50

60

70

80

4,5

54 kg

68 kg

68 kg

79 kg

90 kg

-

5

-

-

75 kg

88 kg

100 kg

125 kg

6

-

-

-

-

-

150 kg

8

128 kg

-

-

208 kg

-

208 kg

90

100

120

140

160

180-200

-

-

-

-

-

-

138 kg

150 kg

-

-

-

-

165 kg

180 kg

225 kg

240 kg

270 kg

300 kg

-

-

-

-

-

-

HEAD PENETRATION Nadm d1 [mm]

Nadm

4,5

38 kg

5

47 kg

6

72 kg

8

105 kg

CALCULATION FORMULAS - SHEAR WOOD-WOOD Vadm = min { 0,4 · A · d1; 1,7 · d1 2 }

STEEL-WOOD EXAMPLE HBS+ evo 8 x 60 mm

d1 [mm] A [mm] Vadm [kg]

d1 = 8 mm

DIN 1052-2:1988

STEEL-WOOD Vadm = 1,25 ·1,7 d1 2

Vadm = 1,25 · 1,7 · d12 Vadm = 1,25 · 1,7 · 82 = 136 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

HBS+ evo

219


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ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS

t1 duk ds

SCREW HBS+ evo Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Underhead diameter Pre-bored hole diameter

d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

dk

L b d1

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dUK [mm] dV [mm]

4,5 8,70 2,80 3,15 5,05 5,70 3,0

5 9,65 3,40 3,65 5,60 6,00 3,0

6 12,00 3,95 4,30 6,50 8,00 4,0

8 14,50 5,40 5,80 6,80 10,00 5,0

My,k [Nmm] fax,k [N/mm2] fhead,k [N/mm2] ftens,k [kN]

4119,1 11,7 10,5 6,4

5417,2 11,7 10,5 7,9

9493,7 11,7 10,5 11,3

20057,5 11,7 10,5 20,1

MINIMUM DISTANCES FOR SHEAR LOADS α = 0°

α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES (1) a1 a2 a3,t a3,c a4,t a4,c

4,5 23 14 54 32 14 14

[mm] [mm] [mm] [mm] [mm] [mm]

5 25 15 60 35 15 15

6 30 18 72 42 18 18

8 40 24 96 56 24 24

4,5 18 18 32 32 23 14

5 20 20 35 35 35 15

6 24 24 42 42 42 18

8 32 32 56 56 56 24

Angle between strength and grain α = 0° Angle between strength and grain α = 90°

CHARACTERISTIC DENSITY: ρk ≤ 420 kg/m3 α = 0°

α = 90°

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

4,5 45 23 68 45 23 23

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

5 60 25 75 50 25 25

6 72 30 90 60 30 30

8 96 40 120 80 40 40

4,5 23 23 45 45 32 23

5 25 25 50 50 50 25

a1

α = 0° 8 40 40 80 80 80 40 stressed end -90° < α < 90°

a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

a1

4,5 68 32 90 68 32 32

discharged end 90° < α < 270°

a2 a2 a1

α = 90°

SCREWS INSERTED WITHOUT PRE-BORED HOLES (3)

(2)

6 30 30 60 60 60 30

Means of connection

a2 a2 a1

CHARACTERISTIC DENSITY: 420 ≤ ρk ≤ 500 kg/m3

5 75 35 100 75 35 35

6 90 42 120 90 42 42

8 120 56 160 120 56 56

4,5 32 32 68 68 41 32

stressed edge 0° < α < 180°

5 35 35 75 75 60 35

6 42 42 90 90 72 42

8 56 56 120 120 96 56

unload edge 180° < α < 360°

a4,t a3,t

a3,c

NOTE (1)

(2)

(3)

220

The minimum distances comply with the EN 1995:2008 standard, in accordance with ETA-11/0030. The minimum distances comply with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3. The minimum distances comply with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of 420 ≤ ρk ≤ 500 kg/m3.

HBS+ evo

• In the case of OSB-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.85. • In the case of steel-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.7. • In the case of Douglas fir elements (Pseudotsuga menziesii), the minimum distances parallel to the grain (a1 , a3,t, a3,c) must be multiplied by a coefficient of 1.5.

a4,c


CARPENTRY

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WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

panel-wood (1)

thin steel-wood plate (2)

thick steel-wood plate (3)

RV,k [kN] 1,03 1,00 1,12 1,26 1,27 1,29 1,43 1,52 1,52 1,52 1,52 2,02 2,18 2,18 2,18 2,18 2,18 2,18 2,18 1,48 2,54 2,83

RV,k [kN]

RV,k [kN]

RV,k [kN]

thread withdrawal (4) head penetration (5)

A

L b

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

(2)

(3)

• • • • •

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 420 kg/m3. Values were calculated considering the threaded part as being completely inserted into the wood. Sizing and verification of the wooden elements, panels and steel plates must be done separately. The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. For different calculation methods, the myProject software is available free of charge (www.rothoblaas.com).

(4)

(5)

SPLATE ≥ 4,5 mm SPLATE ≥ 5,0 mm SPLATE ≥ 6,0 mm

SPLATE ≤ 2,3 mm SPLATE ≤ 2,5 mm SPLATE ≤ 3,0 mm

SPAN = 15 mm

GENERAL PRINCIPLES

1,40 1,49 1,49 1,57 1,65 1,74 1,83 1,91 2,08 2,16 2,25 2,76 2,86 2,96 3,26 3,37 3,48 3,48 3,48 2,13 3,31 4,21

SPLATE = 8,0 mm

8

1,07 1,07 1,07 1,07 1,07 1,21 1,21 1,21 1,21 1,21 1,21 1,57 1,57 1,57 1,57 1,57 1,57 1,57 1,57 1,77 2,32 2,32

SPLATE ≤ 4,0 mm

6

A [mm] 16 15 20 25 30 20 25 30 30 35 40 30 35 40 45 60 70 80 100 10 20 30

SPAN = 15 mm

5

b [mm] 24 30 30 35 40 30 35 40 50 55 60 50 55 60 75 80 90 100 100 32 52 52

SPAN = 15 mm

4,5

L [mm] 40 45 50 60 70 50 60 70 80 90 100 80 90 100 120 140 160 180 200 40 60 80

SPAN = 15 mm

d1

d1 [mm]

1,83 1,92 1,92 2,00 2,08 2,25 2,34 2,42 2,59 2,68 2,76 3,48 3,58 3,68 3,99 4,09 4,29 4,49 4,49 3,66 5,12 5,37

Rax,k [kN] 1,46 1,83 1,83 2,13 2,44 2,03 2,37 2,71 3,38 3,72 4,06 4,06 4,47 4,87 6,09 6,50 7,31 8,12 8,12 3,47 5,63 5,63

Rhead,k [kN] 0,92 0,92 0,92 0,92 0,92 1,13 1,13 1,13 1,13 1,13 1,13 1,75 1,75 1,75 1,75 1,75 1,75 1,75 1,75 2,55 2,55 2,55

The shear characteristic resistances are calculated considering an OSB panel or particle board with a SPAN thickness. The shear resistance characteristics are calculated considering the case of a thin plate (SPLATE ≤ 0.5 d1). The shear resistance characteristics are calculated considering the case of a thick plate (SPLATE ≥ d1). The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. The axial resistance to head penetration was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration.

HBS+ evo

221


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

KKF

ETA 11/0030

Exterior screws, pan head Stainless steel AISI410

SPECIAL THREADING Longer length (60%) asymmetric ”umbrella“ thread

FINE THREAD Fine thread for the utmost precision when tightening is complete

PAN HEAD Guarantees an excellent surface finish and the possibility of usage on steel plates with circular holes

STAINLESS STEEL AISI410 Martensitic stainless steel with an excellent balance between mechanical resistance and corrosion resistance

FIELDS OF USE Exterior use; appropriate for service classes 1-2-3

222

KKF

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

AESTHETICS AND PRECISION The pan head with the flat under head compresses the fibres when tightening is complete and guarantees a perfect aesthetic finish. The fine thread guarantees the utmost precision during tightening

TORSIONAL STRENGTH The AISI410 martensitic stainless steel has good torsional strength (magnetic steel like carbon steel), which means pre-bored holes can be avoided in many situations

WIDE RANGE Lengths available from 20mm to 200mm for a vast range of diďŹ&#x20AC;erent applications

KKF

223


CARPENTRY

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STRUCTURES

WOOD/METAL

ACCESSORIES

Applications Fastening of exterior fences

Fastening of TERRALOCK PP connector (long version) with KKF screws Fastening of TERRALOCK PP connector (short version) with KKF screws

Hidden connectors for patios and faรงades

224

KKF

connector

code

TERRALOCK PP

TER60PPM TER180PPM

L x B x H [mm] 60 x 20 x 8 180 x 20 x 8

description plastic RAL8017 connector for wooden patios (short version) plastic RAL8017 connector for wooden patios (long version)

pcs /pckg. 100 50


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Codes and dimensions d1 [mm]

L

4

TX20

b d1

4,5

TX20 A

5

TX25

6

TX30

code KKF430 KKF435 KKF440 KKF445 KKF450 KKF4520 KKF4525 KKF4530 KKF4540 KKF4545 KKF4550 KKF4560 KKF4570 KKF540 KKF545 KKF550 KKF560 KKF570 KKF580 KKF590 KKF5100 KKF670 KKF680 KKF690 KKF6100 KKF6120 KKF6140 KKF6160 KKF6180 KKF6200

L [mm]

b [mm]

A [mm]

30 35 40 45 50 20 25 30 40 45 50 60 70 40 45 50 60 70 80 90 100 70 80 90 100 120 140 160 180 200

18 20 24 30 30 15 20 25 24 30 30 35 40 24 30 30 35 40 50 55 60 40 50 55 60 75 80 90 100 100

12 15 16 15 20 5 5 5 16 15 20 25 30 16 15 20 25 30 30 35 40 30 30 35 40 45 60 70 80 100

pcs/pckg 500 200 100

250 200

200

100

100

KKF

225


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

4

≥ 40

26 kg

4,5

≥ 50

34 kg

5

≥ 60

43 kg

6

≥ 70

61 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

30

35

40

45-50

60

70

80

90

100

120

140

160

180-200

4

36 kg

40 kg

48 kg

60 kg

-

-

-

-

-

-

-

-

-

4,5

56 kg

-

54 kg

68 kg

79 kg

90 kg

-

-

-

-

-

-

-

5

-

-

60 kg

75 kg

88 kg

100 kg 125 kg 138 kg 150 kg

-

-

-

-

6

-

-

-

-

-

120 kg 150 kg

HEAD PENETRATION Nadm d1 [mm]

Nadm

4

30 kg

4,5

39 kg

5

48 kg

6

70 kg

CALCULATION FORMULAS - SHEAR DIN 1052-2:1988 WOOD-WOOD Vadm = min { 0,4 · A · d1; 1,7 · d1 2 }

EXAMPLE WOOD-WOOD KKF 5 x 80 mm

d1 [mm] A [mm] Vadm [kg]

d1 = 5 mm A = 30 mm

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 30 · 5 ; 1,7 · 52 } = min { 60 ; 43 } = 43 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

226

KKF

-

180 kg 225 kg 240 kg 270 kg 300 kg


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS KKF SCREW Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter

dk t1 ds L b d2

Characteristic yield moment Characteristic extraction-resistance parameter Characteristic head-penetration parameter Characteristic tensile strength

d1

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

4 7,80 2,60 2,90 5,00 2,5

4,5 8,8 3,05 3,35 5,00 3,0

5 9,8 3,25 3,60 6,00 3,0

6 11,8 4,05 4,30 7,00 4,0

My,k [Nmm] fax,k [N/mm2] fhead,k [N/mm2] ftens,k [kN]

3032,6 11,7 16,5 5,0

4119,1 11,7 16,5 6,4

5417,2 11,7 16,5 7,9

9493,7 11,7 16,5 11,3

MINIMUM DISTANCES FOR SHEAR LOADS α = 0°

α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES (1) a1 a2 a3,t a3,c a4,t a4,c

4 20 12 48 28 12 12

[mm] [mm] [mm] [mm] [mm] [mm]

4,5 23 14 54 32 14 14

5 25 15 60 35 15 15

6 30 18 72 42 18 18

4 16 16 28 28 20 12

4,5 18 18 32 32 23 14

5 20 20 35 35 35 15

6 24 24 42 42 42 18

Angle between strength and grain α = 0° Angle between strength and grain α = 90°

CHARACTERISTIC DENSITY: ρk ≤ 420 kg/m3 α = 0°

α = 90°

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

4 40 20 60 40 20 20

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

4,5 45 23 68 45 23 23

5 60 25 75 50 25 25

6 72 30 90 60 30 30

4 20 20 40 40 28 20

4,5 23 23 45 45 32 23

a1

α = 0° 6 30 30 60 60 60 30 stressed end -90° < α < 90°

a1 a2 a3,t a3,c a4,t a4,c

[mm] [mm] [mm] [mm] [mm] [mm]

a1

4 60 28 80 60 28 28

discharged end 90° < α < 270°

a2 a2 a1

α = 90°

SCREWS INSERTED WITHOUT PRE-BORED HOLES (3)

(2)

5 25 25 50 50 50 25

Means of connection

a2 a2 a1

CHARACTERISTIC DENSITY: 420 ≤ ρk ≤ 500 kg/m3

4,5 68 32 90 68 32 32

5 75 35 100 75 35 35

6 90 42 120 90 42 42

4 28 28 60 60 36 28

stressed edge 0° < α < 180°

4,5 32 32 68 68 41 32

5 35 35 75 75 60 35

unload edge 180° < α < 360°

a4,t a3,t

6 42 42 90 90 72 42

a4,c

a3,c

NOTE (1)

(2)

(3)

The minimum distances comply with the EN 1995:2008 standard, in accordance with ETA-11/0030. The minimum distances are in accordance with EN 1995:2008, according to ETA-11/0030, considering a mass density of the wood elements of ρk ≤ 420 kg/m3. The minimum distances comply with EN 1995:2008, according to ETA -11/0030, considering a mass density of the wood elements of 420 ≤ ρk ≤ 500 kg/m3.

• In the case of OSB-wood joints, the minimum spacings (a1, a2) can be multiplied by a coefficient of 0.85. • In the case of Douglas fir elements (Pseudotsuga menziesii), the minimum distances parallel to the grain (a1 , a3,t, a3,) must be multiplied by a coefficient of 1.5.

KKF

227


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

TRACTION

wood-wood

panel-wood (1)

thread withdrawal (2)

head penetration (3)

RV,k [kN] 0,83 0,94 0,98 0,96 1,08 0,49 0,49 0,49 1,16 1,14 1,26 1,40 1,41 1,32 1,35 1,46 1,60 1,69 1,69 1,69 1,69 2,25 2,25 2,41 2,41 2,41 2,41 2,41 2,41 2,41

RV,k [kN]

Rax,k [kN] 0,97 1,08 1,30 1,62 1,62 0,91 1,22 1,52 1,46 1,83 1,83 2,13 2,44 1,62 2,03 2,03 2,37 2,71 3,38 3,72 4,06 3,25 4,06 4,47 4,87 6,09 6,50 7,31 8,12 8,12

Rhead,k [kN] 1,16 1,16 1,16 1,16 1,16 1,48 1,48 1,48 1,48 1,48 1,48 1,48 1,48 1,83 1,83 1,83 1,83 1,83 1,83 1,83 1,83 2,66 2,66 2,66 2,66 2,66 2,66 2,66 2,66 2,66

A

L b d1

5

6

0,81 0,90 0,94 0,94 0,94 0,49 0,80 0,89 1,07 1,07 1,07 1,07 1,07 1,21 1,21 1,21 1,21 1,21 1,21 1,21 1,21 1,57 1,57 1,57 1,57 1,57 1,57 1,57 1,57 1,57

SPAN = 15 mm

A [mm] 12 15 16 15 20 5 5 5 16 15 20 25 30 16 15 20 25 30 30 35 40 30 30 35 40 45 60 70 80 100

SPAN = 15 mm

4,5

b [mm] 18 20 24 30 30 15 20 25 24 30 30 35 40 24 30 30 35 40 50 55 60 40 50 55 60 75 80 90 100 100

SPAN = 15 mm

4

L [mm] 30 35 40 45 50 20 (4) 25 (4) 30 (4) 40 45 50 60 70 40 45 50 60 70 80 90 100 70 80 90 100 120 140 160 180 200

SPAN = 15 mm

d1 [mm]

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with EN 1995:2008, in accordance with • ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

(2)

(3)

• • • • • •

228

The coefficients γm and kmod should be taken according to the current regulations used for the calculation. For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. In the calculations, the density of the wood elements was considered equal to ρk = 420 kg/m3. Values were calculated considering the threaded part as being completely inserted into the wood. Sizing and verification of the wooden elements and panels must be done separately. The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained.

KKF

(4)

The shear characteristic resistances are calculated considering an OSB panel or particle board with a SPAN thickness. The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. The axial resistance to head penetration was calculated using wooden elements. This screw has not been granted the CE mark.


CARPENTRY

OUTDOOR

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ACCESSORIES

HZK

ETA 11/0030

KKF bound screws Stainless steel AISI410

FAST INSTALLATION Quick and precise installation

SERIAL ASSEMBLY Fast and safe execution thanks to the special binding

Codes and dimensions d1 [mm]

5

L

TX25 b d1

code HZK550 HZK560 HZK570 HZK580

L [mm]

b [mm]

A [mm]

pcs/pckg

50 60 70 80

30 35 40 50

20 25 30 30

1250 1250 625 625

A: fastening thickness

Tools AUTOMATIC SCREWDRIVER HH3380/HH3338

HZK

229


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SCI

Exterior screws, countersunk head A2 and A4 stainless steel versions

SPECIAL GEOMETRY Self-perforating tip with setback notch, asymmetric ”umbrella“ thread, elongated cutter, underhead ribs

FULL RANGE Wide selection of diameters and lengths

HIGH TECH Special geometries and treatments provide mechanical resistance that is greater than stainless steel in the same class

STAINLESS STEEL A2 AND A4 AISI304 (A2) and AISI316 (A4) stainless steel for high corrosion resistance

FIELDS OF USE Exterior use; appropriate for service classes 1-2-3

230

SCI A2/A4

ACCESSORIES


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

AGGRESSIVE ENVIRONMENTS The high corrosion resistance stainless steel allows efficient fastening even in very aggressive environments

FULL RANGE Extensive range of stainless steel options with high performing geometry (self-perforating tip, notch, cutter, underhead ribs) and mechanical resistance better than common stainless steel in the same class

Range The A2 stainless steel version is available with diameters ranging from 3.5mm to 8mm, up to a length of 280mm. The A4 stainless steel version is available with a 5mm diameter. For both versions, the bit is included in each box.

300 280 260 240 220 200 180 160 140 120 100 80 60 40 20

ø3,5 TX15

ø4

TX20

ø4,5

ø5

TX20

TX25

A2

ø6

TX30

ø8

TX40

ø5

TX25

A4

SCI A2/A4

231


CARPENTRY

STRUCTURES

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Codes and dimensions SCI A2 d1 [mm]

3,5

TX10

L b

4

d1

TX20

A

4,5

TX20

5

TX25

6

TX30

8

TX40

code SCI3525* SCI3530* SCI3535* SCI3540* SCI4030* SCI4035* SCI4040 SCI4045 SCI4050 SCI4060 SCI4520* SCI4535* SCI4540* SCI4545 SCI4550 SCI4560 SCI4570 SCI4580 SCI5040* SCI5045* SCI5050* SCI5060 SCI5070 SCI5080 SCI5090 SCI50100 SCI6050* SCI6060* SCI6080 SCI60100 SCI60120 SCI60140 SCI80160 SCI80200 SCI80240 SCI80280

L [mm]

b [mm]

A [mm]

25 30 35 40 30 35 40 45 50 60 20 35 40 45 50 60 70 80 40 45 50 60 70 80 90 100 50 60 80 100 120 140 160 200 240 280

18 18 18 18 18 18 24 30 30 35 15 24 24 30 30 35 40 40 20 24 24 30 35 40 45 50 30 30 40 50 60 75 80 80 80 80

7 12 17 22 12 17 16 15 20 25 5 11 16 15 20 25 30 40 20 21 26 30 35 40 45 50 20 30 40 50 60 65 80 120 160 200

L [mm]

b [mm]

A [mm]

50 60 70 80 90 100

24 30 35 40 45 50

26 30 35 40 45 50

dv** pre-bored hole [mm] 2

pcs/pckg 500 200

2,5

200

3

200

200 3,5 100

4

100

5

100

dv** pre-bored hole [mm]

pcs/pckg

SCI A4 d1 [mm]

5

TX20

code SCI5050A4* SCI5060A4* SCI5070A4* SCI5080A4* SCI5090A4* SCI50100A4*

200 3,5

100

* screws have not been granted the CE mark. ** for medium or high density materials, pre-bored holes are recommended based on the wood species.

D2

232

SCI A2/A4

TURNED WASHER A2 code

d1 SCI

D2 [mm]

pcs/pckg

SCB6 SCB8

6 8

20 25

100


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

ALLOWABLE VALUES Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

3,5

≥ 35

21 kg

4

≥ 35

27 kg

4,5

≥ 50

34 kg

5

≥ 50

43 kg

6

≥ 60

61 kg

8

≥ 160

109 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

25

30-35

40

45-50

60

70

80

90

100

120

140

160-280

3,5

32 kg

32 kg

32 kg

-

-

-

-

-

-

-

-

-

4

-

36 kg

48 kg

60 kg

70 kg

-

-

-

-

-

-

-

4,5

-

-

54 kg

68 kg

79 kg

90 kg

90 kg

-

-

-

-

-

5

-

-

50 kg

60 kg

75 kg

88 kg

100 kg

113 kg

125 kg

-

-

-

6

-

-

-

90 kg

90 kg

-

120 kg

-

150 kg

180 kg

225 kg

-

8

-

-

-

-

-

-

-

-

-

-

-

320 kg

HEAD PENETRATION Nadm SCREW

SCREW WITH WASHER

d1 [mm]

Nadm

d1 [mm]

Nadm

3,5

20 kg

3,5

-

4

26 kg

4

-

4,5

41 kg

4,5

-

5

50 kg

5

-

6

72 kg

6

200 kg

8

105 kg

8

313 kg

CALCULATION FORMULAS - SHEAR WOOD-WOOD Vadm = min { 0,4 · A · d1; 1,7 · d1 2 }

EXAMPLE WOOD-WOOD SCI 6 x 100 mm

DIN 1052-2:1988

d1 [mm] A [mm] Vadm [kg]

d1 = 6 mm A = 50 mm

Vadm = min { 0,4 · A · d1; 1,7 · d1 2 } Vadm = min { 0,4 · 50 · 6 ; 1,7 · 62 } = min { 120 ; 61 } = 61 kg

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

SCI A2/A4

233


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Geometry and minimum distances GEOMETRY AND MECHANICAL CHARACTERISTICS SCI SCREW Material Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter

dk 90°

ds

t1

L b d2

Characteristic yield moment Characteristic extraction-resistance parameter Associated density Characteristic head-penetration parameter Associated density Characteristic tensile strength

d1

Stainless steel d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

A2* 3,5 7,00 2,25 2,55 3,50 2,0

A2* 4 8,00 2,55 2,80 3,80 2,5

A2* 4,5 9,00 2,80 3,25 4,25 3,0

A2* 5 10,00 3,40 3,70 4,65 3,0

A2* 6 12,00 3,95 4,45 5,30 4,0

A2* 8 14,50 5,40 5,85 6,00 5,0

A4** 5 10,00 3,40 3,70 4,65 3,0

My,k [Nmm] fax,k [N/mm2] ρa [kg/m3] fhead,k [N/mm2] ρa [kg/m3] ftens,k [kN]

1260,0 19,1 440 16,0 380 2,21

1960,0 17,1 410 13,4 390 3,23

2770,0 17,2 410 18,0 440 4,40

4370,0 17,9 440 17,6 440 5,01

8220,0 11,6 420 12,0 440 6,81

17600,0 14,8 410 12,5 440 14,10

3939,8 17,9 440 17,6 440 4,30

* Mechanical parameters comply with CE marking, according to EN 14592 ** Mechanical parameters from experimental tests

s

SCB TURNED WASHER Material Washer Screw Internal diameter External diameter Thickness

D1 D2

Stainless steel

A2 SCB6 SCI Ø6 7,5 20,0 4,0

D1 [mm] D2 [mm] S [mm]

A2 SCB8 SCI Ø8 8,5 25,0 5,0

MINIMUM DISTANCES FOR SHEAR LOADS

Angle between strength and grain α = 0°

Angle between strength and grain α = 90°

SCREWS INSERTED WITH PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

3,5 18 11 42 25 11 11

[mm] [mm] [mm] [mm] [mm] [mm]

4 20 12 48 28 12 12

4,5 23 14 54 32 14 14

5 25 15 60 35 15 15

6 30 18 72 42 18 18

8 40 24 96 56 24 24

3,5 14 14 25 25 18 11

4 16 16 28 28 20 12

4,5 18 18 32 32 23 14

5 20 20 35 35 35 15

6 24 24 42 42 42 18

8 32 32 56 56 56 24

4,5 23 23 45 45 32 23

5 25 25 50 50 50 25

6 30 30 60 60 60 30

8 40 40 80 80 80 40

SCREWS INSERTED WITHOUT PRE-BORED HOLES a1 a2 a3,t a3,c a4,t a4,c

3,5 35 18 53 35 18 18

[mm] [mm] [mm] [mm] [mm] [mm]

Direction of the grain

4 40 20 60 40 20 20

4,5 45 23 68 45 23 23

5 60 25 75 50 25 25

stressed end -90° < α < 90°

Means of connection

a2 a2 a1

6 72 30 90 60 30 30

a1

8 96 40 120 80 40 40

3,5 18 18 35 35 25 18 discharged end 90° < α < 270°

a2 a2 a1

a1

4 20 20 40 40 28 20

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

a4,t a3,t

a3,c

NOTE • The minimum distances are in accordance with EN 1995:2008 considering a mass density of the wooden elements of ρk ≤ 420 kg/m3.

234

SCI A2/A4

a4,c


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

Designer statics

CHARACTERISTIC VALUES

EN 1995:2008 SHEAR

geometry

ACCESSORIES

TRACTION

wood-wood

wood-wood with washer

thread withdrawal (1)

head penetration (2)

head penetration with washer (2)

RV,k [kN] 0,43 0,52 0,55 0,55 0,62 0,69 0,69 0,69 0,69 0,69 0,45 0,71 0,83 0,80 0,85 0,85 0,85 0,85 1,02 1,02 1,02 1,02 1,02 1,02 1,02 1,02 1,34 1,41 1,41 1,41 1,41 1,41 2,20 2,20 2,20 2,20

RV,k [kN] 1,50 1,57 1,75 1,94 2,01 2,01 3,22 3,22 3,22 3,22

Rax,k [kN] 0,79 0,79 0,79 0,79 0,90 0,90 1,20 1,50 1,50 1,75 0,84 1,35 1,35 1,69 1,69 1,97 2,25 2,25 1,25 1,50 1,50 1,87 2,19 2,50 2,81 3,12 2,25 2,25 3,00 3,75 4,50 5,62 8,00 8,00 8,00 8,00

Rhead,k [kN] 0,55 0,55 0,55 0,55 0,72 0,72 0,72 0,72 0,72 0,72 0,91 0,91 0,91 0,91 0,91 0,91 0,91 0,91 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,61 1,61 1,61 1,61 1,61 1,61 2,36 2,36 2,36 2,36

Rhead,k [kN] 4,49 4,49 4,49 4,49 4,49 4,49 7,01 7,01 7,01 7,01

A

L b d1

d1 [mm]

3,5

4

4,5

5

6

8

L [mm] 25 30 35 40 30 35 40 45 50 60 20 35 40 45 50 60 70 80 40 45 50 (3) 60 (3) 70 (3) 80 (3) 90 (3) 100 (3) 50 60 80 100 120 140 160 200 240 280

b [mm] 18 18 18 18 18 18 24 30 30 35 15 24 24 30 30 35 40 40 20 24 24 30 35 40 45 50 30 30 40 50 60 75 80 80 80 80

A [mm] 7 12 17 22 12 17 16 15 20 25 5 11 16 15 20 25 30 40 20 21 26 30 35 40 45 50 20 30 40 50 60 65 80 120 160 200

GENERAL PRINCIPLES

NOTE

• Characteristic values comply with the EN 1995:2008 standard in accordance with ETA-11/0030. • Design values are obtained from the following characteristic values:

(1)

The coefficients γm and kmod should be taken according to the current • regulations used for the calculation. • The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. • In the calculations, the density of the wood elements was considered equal to ρk = 380 kg/m3. • Values were calculated considering the threaded part as being completely inserted into the wood. • Sizing and verification of the wooden elements must be done separately. • The shear characteristic resistances are calculated for screws inserted without pre-bored holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained.

(2)

(3)

The axial thread-extraction resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. The axial resistance to head penetration, with and without a washer, was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration. Screw available in both A2 and A4 versions.

SCI A2/A4

235


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

EWS

Screw for hardwoods Stainless steel AISI410

SPECIAL ”4 CUT“ TIP Special tip with four notches, ideal for use on hardwoods and a shank with a larger diameter for strong fastening

STAINLESS STEEL AISI410 Martensitic stainless steel with an excellent balance between mechanical resistance and corrosion resistance

DRILLING CAPACITY The larger diameter shank, “4 cut” tip and the convex head allow for secure and resistant fastenings, even on hard surfaces

Codes and dimensions d1 [mm]

5

TX25

HARD WOODS The special four-notch tip allows the screws to be used even on hardwoods without the need for pre-bored holes

236

EWS

code EWS550 EWS560 EWS570 EWS580

A: fastening thickness

L [mm]

b [mm]

A [mm]

50 60 70 80

30 36 42 48

20 24 28 32

pcs/pckg 200 100


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

Carpenter statics

ACCESSORIES ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

5

≥ 50

43 kg

THREAD WITHDRAWAL Nadm Length L [mm] d1 [mm]

50

60

70

80

5

75 kg

90 kg

105 kg

120 kg

d1 [mm]

Nadm

5

32 kg

HEAD PENETRATION Nadm

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

Geometry dk t1 ds L

EWS SCREW Nominal diameter Head diameter Tip diameter Shank diameter Head thickness Pre-bored hole diameter

d1 [mm] dK [mm] d2 [mm] dS [mm] t1 [mm] dV [mm]

5,30 8,00 3,75 4,05 3,65 3,5

b d2

d1

EWS

237


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

SHSAS Small head screw Stainless steel AISI410

INVISIBLE HEAD Hidden 60° head for easy insertion in small spaces without creating openings in the wood

STAINLESS STEEL AISI410 Martensitic stainless steel with an excellent balance between mechanical resistance and corrosion resistance

EXTERIOR FASTENING The smaller head and high performing thread guarantee perfect insertion of the screw in small thicknesses, avoiding splits. Ideal for exterior use, thanks to the stainless steel

Codes and dimensions d1 [mm]

3,5

code SHS3540AS

L [mm]

b [mm]

A [mm]

TX

pcs/pckg

40

26

14

10

500

Also available in carbon steel (3.5 x 30, 40, 50) - see CARPENTRY chapter A: fastening thickness

VERSATILE FASTENING Ideal for exterior fastening of mixed wood and plastic materials (patio frames)

238

SHS-AS


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

Carpenter statics

ACCESSORIES ALLOWABLE VALUES

DIN 1052:1988

SHEAR Vadm WOOD-WOOD d1 [mm]

L [mm]

Vadm

3,5

40

20 kg

d1 [mm]

L [mm]

Vadm

3,5

40

46 kg

d1 [mm]

Nadm

3,5

17 kg

THREAD WITHDRAWAL Nadm

HEAD PENETRATION Nadm

NOTE • Allowable values in accordance with DIN 1052:1988. • The allowable extraction values are calculated considering the threaded part as being completely inserted into the wood.

Geometry dk 60°

L

SHS-AS SCREW Nominal diameter Head diameter

d1 [mm] dK [mm]

3,50 5,75

b d1

SHS-AS

239


CARPENTRY

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OUTDOOR

WOOD/METAL

ACCESSORIES

MINI WT

Small-size twin-thread screw Carbon steel with durocoat

OPTIMISED SIZE Small size hidden head and high-performance twin thread for stable and secure fastening of smaller thicknesses

DUROCOAT AND STAINLESS A2 Available in carbon steel with durocoat surface treatment and in stainless steel A2

Codes and dimensions SAFE FASTENING OF SMALLER THICKNESSES The special features of the high-performance twin thread and cylindrical hidden head allow for secure and stable fastening of smaller sized wood

d1 [mm] code

4,5

TX20

5

TX20

6,5

TX30

EXTERIOR APPLICATIONS Also ideal for exterior applications, thanks to the durocoat treatment or the stainless steel A2 version

CS100930 CS100935 CS100950 CS100955 CS100970* CS100980* CS100990*

L [mm]

Material

sg [mm]

sS [mm]

40 60 45 60 65 90 130

T T S S S S S

20 23 23 23 28 40 55

15 17 17 17 28 40 55

40 60 45 60

T T S S

20 23 23 23

15 17 17 17

pcs/pckg 200 200 100

MINI WT COLLATED

4,5

TX20

5

TX20

CS100940 CS100945 CS100960 CS100965

750 750

* Stainless steel A2 items available upon request; carbon steel items can be found in the STRUCTURES chapter T = Carbon steel with Durocoat treatment / S = Stainless steel A2

240

MINI WT


CARPENTRY

OUTDOOR

STRUCTURES

WOOD/METAL

ACCESSORIES

Carpenter statics

ALLOWABLE VALUES

DIN 1052:1988

PARTIAL THREAD WITHDRAWAL Nadm d1 [mm]

6,5

L [mm]

sS [mm]

Nadm

65

28

109 kg

90

40

156 kg

130

55

215 kg

L [mm]

A [mm]

Vadm

65

35

45 kg

90

50

62 kg

130

70

72 kg

SHEAR Vadm WOOD-WOOD

A

d1 [mm]

6,5

NOTE â&#x20AC;˘ Allowable values in accordance with DIN 1052:1988.

Geometry dk Ss L Sg d1

MINI WT CONNECTOR Nominal diameter Head diameter Characteristic yield moment Characteristic extraction-resistance parameter Characteristic tensile strength Characteristic yield strength

d1 [mm] dK [mm]

4,5 6,50

5,0 7,00

6,5 * 8,00

My,k [Nmm] fax,k [N/mm2] ftens,k [kN] fy,k [N/mm2]

-

-

7000 12,9 9,1 545

* CE marking according to ETA-12/0063

MINI WT

241


242


243

4. WOOD/METAL


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SBS  SPP

Self-tapping wood/metal screws Carbon steel with white galvanic zinc coating

WOOD/METAL Specially studied geometry to guarantee perfect adhesion between the upper wood piece and the metal

SELF-PERFORATING TIP Special wood/metal self-perforating tip with bleeder geometry for excellent drilling capacity

CUTTING FINS Special protective fins at the tip to guarantee the utmost efficiency of the thread in metal

UNDERHEAD RIBS Very sharp underhead ribs, for a perfect surface finish on the wood element

FIELDS OF USE Fastening of wood elements to metal surfaces. Service classes 1 and 2

244

SBS - SPP

ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Applications RAPID FASTENING The special self-tapping point in carbon steel with bleeding geometry and cutting fins allow for perfectly adhering fastenings of wood elements to metal supports.

SANDWICH PANELS The self-tapping wood/metal SPP screw is ideal for fastening sandwich panels to steel supports.

Codes and dimensions SBS d1 [mm]

L

4,2

TX20 d1

4,8

TX25

5,5

TX30

6,3

TX30

L [mm]

pcs/pckg

SBS4238

38

500

SBS4845

45

200

SBS5550

50

200

SBS6360 SBS6370 SBS6385

60 70 85

200

L [mm]

pcs/pckg

125 145 165

100

code

SPP d1 [mm]

6,3

TX30

L

code SPP63125 SPP63145 SPP63165

d1

SBS - SPP

245


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Geometry and installation dk

L d1

SBS SCREW Nominal diameter Head diameter

d1 [mm] dK [mm]

4,20 8,00

4,80 9,25

5,50 10,50

DRILLING CAPACITY Nominal diameter Length Total package thickness Thickness, steel plate S235 / St37 Thickness, aluminium plate Screwdriver

d1 [mm] L [mm] A [mm] s [mm] s [mm] [rpm]

4,20 38 23 1÷3 2÷4 max 2000

4,80 45 28 2÷4 3÷5 max 2000

5,50 50 31 3÷5 4÷6 max 1500

6,30 12,00

60 36

6,30 70 46 4÷6 6÷8 max 1500

A s

dk

L

b d1

SPP SCREW Nominal diameter Head diameter Thread length

d1 [mm] dK [mm] b [mm]

DRILLING CAPACITY Nominal diameter Length Total package thickness Thickness, steel plate S235 / St37 Thickness, aluminium plate Screwdriver

d1 [mm] L [mm] A [mm] s [mm] s [mm] [rpm]

A s

246

SBS - SPP

6,30 12,50 60,00

125 96 4 ÷6 6 ÷8 max 1500

6,30 145 116 4 ÷6 6 ÷8 max 1500

165 136 4 ÷6 6 ÷8 max 1500

85 61


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

SBN

Self-tapping metal screw Carbon steel with white galvanic zinc coating

TIP FOR METAL Self-perforating tip for iron and steel for thicknesses from 0.7 mm to 5.25 mm

FINE THREAD Fine thread for fastening to sheet-metal substructures

LIGHT CARPENTRY The screw allows for very quick fastening to sheet metal and permits coupling of wood/metal in non-structural applications.

RAPID INSTALLATION The reduced screw size allows it to be used in small holes when coupled with other systems such as TERRALOCK for generic fastening to sheet metal or metal. Very quick fastening.

Codes and dimensions d1 [mm]

3,9 4,2 4,8 5,5

SBN3932

L [mm] 32

dK [mm] 7,5

s [mm] 0,7 - 2,4

TX15

SBN4238

38

8,1

1,75 - 3,0

TX20

max 2000

200

SBN4845

45

9,5

1,75 - 4,0

TX25

max 2000

200

SBN5550

50

10,8

1,75 - 5,25

TX25

max 1500

200

code

TX

screwdriver pcs/pckg [rpm] max 2000 200

Available in other lengths for the same diameters upon request

L d1

dk

s

SBN

247


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SCS

Self-tapping wood/metal screw for exterior use Stainless steel A2

BIMETAL SCREW Head and body in A2 stainless steel with a special wood/metal tip in carbon steel

SELF-PERFORATING TIP Special wood/metal self-perforating tip with bleeder geometry for excellent drilling capacity

CUTTING FINS Special protective fins at the tip to guarantee the utmost eďŹ&#x192;ciency of the thread in metal

STAINLESS STEEL A2 Body and head in A2 stainless steel for high corrosion resistance; ideal for exterior applications

FIELDS OF USE Fastening of wood elements to metal surfaces outdoors; appropriate for service classes 1-2-3

248

SCS

ACCESSORIES


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Applications RAPID FASTENING The special self-perforating tip in carbon steel with bleeding geometry and cutting fins allow for perfectly adhering fastenings of wood elements to metal supports

IDEAL FOR OUTDOOR USE Bi-metal screw with self-perforating tip in carbon steel to create the maximum force during drilling. Body and head in A2 stainless steel for exterior use

Codes and dimensions dk d1 [mm] code

dk

SCS4842

42

PH2

SCS4872

72

5,5

SCS5555

55

SCS5575

75

4,8

L

L [mm]

TX30

pcs/pckg 250 250

d1

Geometry and installation

A s

SCS SCREW Nominal diameter Head diameter

d1 [mm] dK [mm]

DRILLING CAPACITY Nominal diameter Length Total package thickness Thickness, steel plate S235 / St37 Thickness, aluminium plate

d1 [mm] L [mm] A [mm] s [mm] s [mm]

4,80 10,00

42 25

4,80 1รท3 2รท3

5,50 10,00

72 55

55 34

5,50 2 รท5 3 รท5

75 54

SCS

249


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

WBAZ

Stainless washer with sealing gasket A2 stainless steel with EPDM gasket

WATERPROOF Perfect watertight closure and excellent sealing thanks to the EPDM sealing gasket

RESISTANT TO UV RAYS Excellent resistance to UV rays

DIRECT FASTENING ON SHEET METAL Direct fastening on sheet metal when paired with hexagonal head Ø6.3-6.5 screws in galvanized or stainless steel. Ideal for use with TBS type Ø6 screws, which can be installed on sheet metal up to 0.7mm thick without pre-bored holes

TBS Ø6 AND VERSATILITY Compatible with TBS type Ø6 screws, also overlapping on sheet metal caps. Ideal for various applications thanks to the adaptability of the EPDM gasket and the force of the stainless steel A2 washer

250

WBAZ

ACCESSORIES


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Codes and dimensions WBAZ

d H

screw [mm]

code

6,3 - 6,5

WBAZ25A2

D [mm]

H [mm]

d [mm]

pcs/pckg

25

15

6,5

100

WBAZ available in other colours upon request Range of sheet-metal caps available upon request

D Large-head carbon-steel TBS screw with white zinc coating for WBAZ

dk

screw [mm] code

TBS 6 TX30

L b d1

TBS680 TBS6100 TBS6120 TBS6140 TBS6160 TBS6180 TBS6200 TBS6220 TBS6240 TBS6260 TBS6280 TBS6300

L [mm]

b [mm]

dk [mm]

pcs/pckg

80 100 120 140 160 180 200 220 240 260 280 300

50 60 75 75 75 75 75 100 100 100 100 100

15,5

50

Installation

Correct tightening

Excessive tightening

Insufficient tightening

Tightening off axis

The thickness of the washer after installation is approximately 8 ÷ 9mm.

WBAZ

251


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

MCS

Screw with washer for sheet metal A2 stainless steel with A2/EPDM washer

INTEGRATED WASHER A2 stainless steel washer with integrated A2/EPDM washer for sheet-metal fastening

TORX BIT Convex head with torx slot for secure fastening of sheet metal on wood

SHEET METAL Ideal for fastening gutters to wood, corrugated sheet metal and general sheet-metal works

STAINLESS STEEL Available in stainless steel A2 and copper-plated stainless steel A2 (CU). Available in painted stainless steel on request (RAL8017, 9002, 3009)

252

MCS

ACCESSORIES


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Codes and dimensions dk

d1 [mm]

4,5

TX20 L

4,5

TX20 d1

dk [mm] 20

20

L [mm]

code MCS4525A2 MCS4535A2 MCS4545A2 MCS4560A2 MCS4525CU MCS4535CU MCS4545CU

25 35 45 60 25 35 45

colour

material

pcs/pckg

A2

200

A2

200

Available in a painted stainless version upon request: - RAL8017 (dark brown) - RAL9002 (white-grey) - RAL3009 (sienna red)

Range 60

40

20

ø4,5 TX20

MCS

253


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

MWS

Metric + wood connector screw Carbon steel with white galvanic zinc coating

METRIC-WOOD THREAD Mixed thread: wood thread at the tip and metric thread at the top for versatile fastening of metal elements to wood

DUAL INSTALLATION Can be installed using a Torx bit (head) or a hex wrench (centre)

EASE OF USE Thanks to the torx stamp on the head and the hexagonal section in the centre it is possible to fasten the screw both with a torx bit and with a wrench. Installation is easy and versatile

FASTENING VERSATILITY Ideal for fastening any type of metal element to a wood substructure, thanks to the initial wood thread and subsequent metric thread for steel

254

MWS

ACCESSORIES


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Codes and dimensions MWS

LM L b d1

d1 / M [mm]

code

8,9 / M10

L [mm]

LM [mm]

b [mm]

MWS10100

100

30

57

TX25

MWS10140

140

40

57

11 / M12

MWS12120

120

40

57

MWS12160

160

50

62

TX30

pcs/pckg 50 50

NUT DIN 934 M [mm]

M10 M12

H [mm]

Ch [mm]

pcs/pckg

M [mm]

MUT93410

8

17

500

MUT93412

10

19

500

M10 M12

code

H [mm] MUT98510

10

17

1

MUT98512

12

19

1

WASHER DIN 125 M [mm]

M10 M12

D2 [mm]

code

s [mm]

pcs/pckg

ULS10202

20

2

500

ULS13242

24

2,5

500

Items in stainless steel available upon request.

Geometry MWS SCREW Nominal screw diameter Nominal metric diameter Hexagonal section - Wrench Hexagonal section - Length Diameter pre-bored hole on wood

M L

LCh

Ch

b

d1 [mm] M [mm] Ch [mm] LCh [mm] dV [mm]

8,9 M10 8 10 6,0

11 M12 10 20 8,0

d1

Installation

dv Create a pre-bored hole in the wood support with a diameter of dV.

Screw the system using a hex wrench or a Torx bit.

Install the desired system using appropriate fastening elements (e.g. nuts, clamps...).

MWS

255


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

SOL

Screws for fastening photovoltaics on wood A2 stainless steel with EPDM gaskets

EXCELLENT WATERTIGHT SEAL Integrated limiter nut for an excellent seal when coupled with the gaskets

DUAL INSTALLATION AND SELF-LOCKING NUT Can be installed with a 5mm hexagon socket (head) or with an integrated limiter nut (Ch 13); upper self-locking nut

DUAL GASKET Integrated Ă&#x2DC;19mm gasket, can be coupled with EPDM umbrella gasket for fastening directly to sheet metal, ideal when corrugated. Can also be coupled with sheet-metal caps on corrugated sheet metal. Preassembled system including 2 hexagonal nuts (1 selflocking) and two flat washers

CERTIFIED SYSTEM The fastening system was designed specifically to guarantee perfect watertight seals thanks to the integrated limiter nut. The geometry has been specifically approved with certified resistance figures. The upper self-locking nut guarantees additional security.

256

SOL

ACCESSORIES


CARPENTRY

STRUCTURES

WOOD/METAL

OUTDOOR

ACCESSORIES

Codes and dimensions

L L1

d1 / M [mm]

code

8,4/M10

SOL10156 SOL10186 SOL10206 SOL10236 SOL10256

L [mm]

L1 [mm]

A [mm]

pcs/pckg

156 186 206 236 256

100 130 150 180 200

20 - 60 55 - 90 75 - 110 105 - 140 125 - 160

20

Version with metric thread LM = 70mm available upon request A: fastening thickness d1

EPDM umbrella gasket code

H

SOLBAZ24

D

d1 SOL [mm]

D [mm]

H [mm]

pcs/pckg

8,4

24

12

20

Sheet-metal caps for corrugated sheet metal or sandwich panels available upon request

Geometry E

SOL SCREW Nominal screw diameter Nominal metric diameter Diameter washer A2/EPDM 1. Welded nut A2 - Wrench 2. Nut (DIN 934) A2 - Wrench 3. Self-locking nut (DIN 985) A2 -Wrench Hexagonal socket Screw thread length Metric thread length Diameter pre-bored hole on wood

3 M 2 1

LM

dR

L

b d1

d1 [mm] M [mm] dR [mm] Ch1 [mm] Ch2 [mm] Ch3 [mm] E [mm] b [mm] LM [mm] dV [mm]

8,4 M10 19,0 13 17 17 5 70 50 6,0

Installation

A

Lef dv

Choose the screw length according to the thickness A to be fastened and so that the thread is inserted at least 34 mm in the wood support (minimum Lef )

Create a pre-bored hole in the elements with a dV= 6,0 mm diameter.

If necessary, position the EPDM gasket.

Screw in the system using the lower nut or the upper hexagonal socket.

Attach the panelsupport plate (not included), tightening the upper nuts.

SOL

257


258


259

5. ACCESSORIES


CARPENTRY

STRUCTURES

OUTDOOR

ACCESSORIES

WOOD/METAL

Bits TX Single TX

TX10 TX15 TX20 TX25 TX30 TX40 TX50

L [mm]

pcs/pckg

25

10 10 10 10 10 10 7

L [mm]

pcs/pckg

50

5 5 5 5 5 10

L [mm]

pcs/pckg

75

5 5 5

description

L [mm]

pcs/pckg

ATINTX25150 ATINTX30200 ATINTX30350 ATINTX40152 ATINTX40200 ATINTX40350 ATINTX40520 ATINTX50150

Long bit TX25 Long bit TX30 Long bit TX30 Long bit TX40 Long bit TX40 Long bit TX40 Long bit TX40 Long bit TX50

150 200 350 152 200 350 520 150

1 1 1 1 1 1 1 1

code

description

ATINTXBOX

6xTX15 - 6xTX20 - 6xTX25 - 15xTX30 - 15xTX40

codice

description

L [mm]

pcs/pckg

ATINPH2

Single bit PH2

25

10

code

description

L [mm]

pcs/pckg

ATINPZD2 ATINPZD3

Single bit PZD2 Single bit PZD3

25

10 10

code

description

ATINTX10C ATINTX15C ATINTX20C ATINTX25C ATINTX30C ATINTX40C ATINTX50C

Single bit TX10 (white) Single bit TX15 (yellow) Single bit TX20 (red) Single bit TX25 (green) Single bit TX30 (blue) Single bit TX40 (purple) Single bit TX50 (black)

code

description

ATINTX15DC ATINTX20DC ATINTX25DC ATINTX30DC ATINTX40DC ATINTX4050

Double bit TX15 (yellow) Double bit TX20 (red) Double bit TX25 (green) Double bit TX30 (blue) Double bit TX40 (purple) Double bit TX40 STANDARD

code

description

ATINTX1575 ATINTX2075 ATINTX2575

Bit TX15 Bit TX20 Bit TX20

code

TX Double TX

TX15 TX20 TX25 TX30 TX40 TX40 TX 75mm TX

TX15 TX20 TX25 TX Long TX

TX25 TX30 TX40 TX50 TX BOX TX

Various

pcs/pckg 48

PH Single PH

PH2 PZ Single PZ

PZ2 PZ3

260


CARPENTRY

STRUCTURES

OUTDOOR

ACCESSORIES

WOOD/METAL

Bit holder code

description

ATPI0010

Magnetic bit holder 60mm

pcs/pckg 5

Bit holder with limiter code

description

AT4030

Screwing system with adjustable depth

code

description

F3577212

Depth stop with bearing

pcs/pckg 5

Depth stop pcs/pckg 1

Bit holder socket code

description

ATRE0005

Bit holder socket

code

description

ATRE6000 ATRE6005 ATRE6010 ATRE6015 ATRE6020 ATRE6025 ATRE6030 ATRE6040

Socket 10 Socket 12 Socket 13 Socket 16 Socket 17 Socket 18 Socket 19 Socket 24

connection

pcs/pckg

1/2”

1

Ch

connection

pcs/pckg

10 12 13 16 17 18 19 24

1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2”

1 1 1 1 1 1 1 1

Socket

261


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Tips Tips HSS-G for hardwoods Ø hole

2 2,5 3 4 5 6 7

code F1594020 F1594025 F1594030 F1594040 F1599404 F1594050 F1599205 F1599405 F1594060 F1599206 F1599406 F1599407

useful length

length

pcs/pckg

22 25 33 43 300 52 180 300 57 180 300 300

49 57 60 75 400 85 250 400 92 250 400 400

1 1 1 1 1 1 1 1 1 1 1 1

useful length

length

pcs/pckg

160 255 160 255 255 400 160 255 400 900 400 900

235 320 235 320 320 460 235 320 460 1000 460 1000

1 1 1 1 1 1 1 1 1 1 1 1

ø ribs

total length

pcs/pckg

16

60 70 75 80 85 92 92 108

1 1 1 1 1 1 1 1

Helical tip for wood Ø hole

5 6 8 10 12 15

code F1410205 F1410305 F1410206 F1410306 F1410308 F1410408 F1410210 F1410310 F1410412 F1410112 F1410415 F1410115

complete list available in the equipment catalogue

Bit with ribs and limiter ø hole

3 3,5 4 4,5 5 5,5 6 7

262

code F3576030 F3576035 F3576040 F3576045 F3576050 F3576055 F3576060 F3576070


CARPENTRY

STRUCTURES

OUTDOOR

WOOD/METAL

ACCESSORIES

Display cases code

description

LOSTART3

9-shelf display case: 245x106x64cm

pcs/pckg 1

263


PRODUCT LIST

CODES  CHAPTER ORDER CHAPTER 1 CARPENTRY HBS pg. 35 HBS316 HBS320 HBS325 HBS330 HBS3520 HBS3525 HBS3530 HBS3535 HBS3540 HBS3545 HBS3550 HBS430 HBS435 HBS440 HBS445 HBS450 HBS460 HBS470 HBS480 HBS4540 HBS4545 HBS4550 HBS4560 HBS4570 HBS4580 HBS545 HBS550 HBS560 HBS570 HBS580 HBS590 HBS5100 HBS5110 HBS5120 HBS640 HBS660 HBS670 HBS680 HBS690 HBS6100 HBS6110 HBS6120 HBS6130 HBS6140 HBS6150 HBS6160 HBS6180 HBS6200 HBS6220 HBS6240 HBS6260 HBS6280 HBS6300 HBS880 HBS8100 HBS8120 HBS8140 HBS8160 HBS8180 HBS8200 HBS8220 HBS8240 HBS8260 HBS8280 HBS8300 HBS8320 HBS8340 HBS8360

HBS8380 HBS8400 HBS8440 HBS8500 HBS1080 HBS10100 HBS10120 HBS10140 HBS10160 HBS10180 HBS10200 HBS10220 HBS10240 HBS10260 HBS10280 HBS10300 HBS10320 HBS10340 HBS10360 HBS10380 HBS10400 HBS12160 HBS12200 HBS12240 HBS12280 HBS12320 HBS12360 HBS12400 HBS12440 HBS12480 HBS12520 HBS12560 HBS12600

TBS6300 TBS840 TBS860 TBS880 TBS8100 TBS8120 TBS8140 TBS8160 TBS8180 TBS8200 TBS8220 TBS8240 TBS8260 TBS8280 TBS8300 TBS8320 TBS8340 TBS8360 TBS8380 TBS8400 TBS10160 TBS10180 TBS10200 TBS10220 TBS10240 TBS10260 TBS10280 TBS10300 TBS10320 TBS10340 TBS10360 TBS10380 TBS10400

HUS pg. 35

HTS pg. 56

HUS6 HUS8 HUS10 HUS12

HTS312 HTS316 HTS320 HTS325 HTS330 HTS3516 HTS3520 HTS3525 HTS3530 HTS3535 HTS3540 HTS420 HTS425 HTS430 HTS435 HTS440 HTS445 HTS450 HTS4530 HTS4535 HTS4540 HTS4545 HTS4550 HTS530 HTS535 HTS540 HTS545 HTS550 HTS560 HTS570

HZB pg. 45 HZB430 HZB435 HZB440 HZB445 HZB450 HZB4550 HZB4555 HZB540 HZB545 HZB550 HZB560 HZB565 HZB570 HZB580

TBS pg. 49 TBS680 TBS6100 TBS6120 TBS6140 TBS6160 TBS6180 TBS6200 TBS6220 TBS6240 TBS6260 TBS6280

SHS pg. 58 SHS3530 SHS3540 SHS3550

LBS pg. 60 PF603525 PF603540 PF603550 PF603560 PF603570

DRS pg. 64 DRS660S DRS680S DRS6100S DRS6120S DRS6145S

DRT pg. 66 DRT680 DRT6100 DRT6120 DRT6145

nylon ND pg. 66 FE210219

SCH pg. 70 SCH440 SCH450 SCH460 SCH470 SCH4545 SCH4550 SCH4560 SCH4570 SCH550 SCH560 SCH570 SCH580 SCH590 SCH5100 SCH5120 SCH680 SCH690 SCH6100 SCH6120 SCH6140 SCH6150 SCH6160 SCH6180 SCH6200 SCH6220 SCH6240 SCH6260 SCH6280 SCH6300 SCH8140 SCH8160 SCH8180 SCH8200 SCH8220 SCH8240 SCH8260 SCH8280 SCH8300 SCH8320

265


PRODUCT LIST

CODES  CHAPTER ORDER SCH8340 SCH8360 SCH8380 SCH8400

SUS6 SUS8

KOP16220 KOP16240 KOP16260 KOP16280 KOP16300 KOP16320 KOP16340 KOP16360 KOP16380 KOP16400

KOP pg. 76

MBS pg. 82

KOP650 KOP660 KOP670 KOP680 KOP6100 KOP850 KOP860 KOP870 KOP880 KOP8100 KOP8120 KOP8140 KOP8160 KOP8180 KOP8200 KOP1050 KOP1060 KOP1080 KOP10100 KOP10120 KOP10140 KOP10150 KOP10160 KOP10180 KOP10200 KOP10220 KOP10240 KOP10260 KOP10280 KOP10300 KOP1250 KOP1260 KOP1270 KOP1280 KOP1290 KOP12100 KOP12120 KOP12140 KOP12150 KOP12160 KOP12180 KOP12200 KOP12220 KOP12240 KOP12260 KOP12280 KOP12300 KOP12320 KOP12340 KOP12360 KOP12380 KOP12400 KOP1680 KOP16100 KOP16120 KOP16140 KOP16150 KOP16160 KOP16180 KOP16200

FE210086 FE210087 FE210088 FE210089 FE210090 FE210091

SUS pg. 70

266

DWS pg. 84 FE620001 FE620005 FE620010 FE620015 FE620020

HZD pg. 85 HH10600404 HH10600405 HH10600406 HH10600401 HH10600402 HH10600403 HH10600397 HH10600398

THERMOWASHER pg. 86 D78202

ISULFIX pg. 87 D78404 D78406 D78408 D78414

CHAPTER 2 STRUCTURES VGZ pg. 101 VGZ7100 VGZ7140 VGZ7180 VGZ7220 VGZ7260 VGZ7300 VGZ7340 VGZ9160 VGZ9200 VGZ9240 VGZ9280 VGZ9320

VGZ9360 VGZ9400 VGZ9450 VGZ9500

washer 45° pg. 139

WT pg. 116

WRT pg. 150

CS100150 CS100145 CS100115 CS100155 CS100170 CS100175 CS100120 CS100125 CS100130 CS100135 CS100105 CS100140 CS100100

WRT9250 WRT9300 WRTT9350 WRT9400 WRT9450 WRT9500 WRT13400 WRT13500 WRT13600 WRT13700 WRT13800 WRT13900 WRT131000

DGZ pg. 128

WB pg. 161

DGZ7220 DGZ7260 DGZ7300 DGZ7340 DGZ9240 DGZ9280 DGZ9320 DGZ9360 DGZ9400 DGZ9450 DGZ9500

CS220016 CS220020

UD pg. 133 CS100005 CS1000010 CS1000015 CS1000020 CS1000025 CS1000030 CS1000035 CS1000040 CS1000045 CS1000050

VGS pg. 139 VGS9160 VGS9200 VGS9240 VGS9280 VGS9320 VGS9360 VGS11100 VGS11150 VGS11200 VGS11250 VGS11300 VGS11350 VGS11400 VGS11450 VGS11500 VGS11550 VGS11600

HUS945

WS pg. 166 CS100165 CS100160 CS100240 CS100245 CS100215 CS100220 CS100225 CS100250 CS100255

VB pg. 174 CS100900 CS100905

SKR - SKS pg. 183 SKR7560 SKR7580 SKR75100 SKR1080 SKR10100 SKR10120 SKR10140 SKR10160 SKR12100 SKR12120 SKR12140 SKR12160 SKR12200 SKR12240 SKR12280 SKR12320 SKR12400 SKS7560 SKS7580 SKS75100 SKS75120 SKS75140 SKS75160


PRODUCT LIST

CHAPTER 3 OUTDOOR

HBSP860C HBSP880C

KKT pg. 211

KKF pg. 225

KKTM540 KKTM545 KKTM550 KKTM555 KKTM560 KKTM565 KKTM570 KKTM580 KKTM660 KKTM680 KKTM6100 KKTM6120 KKTG540 KKTG545 KKTG550 KKTG555 KKTG560 KKTG565 KKTG570 KKTG580 KKTX520A4 KKTX525A4 KKTX530A4 KKTX540A4 KKT540A4 KKT545A4 KKT550A4 KKT555A4 KKT560A4 KKT565A4 KKT570A4 KKT580A4 KKT660A4 KKT680A4 KKT6100A4 KKT6120A4 KKT540A4M KKT550A4M KKT560A4M KKT570A4M KKT550A4G KKT560A4G KKT570A4G KKT580A4G

KKF430 KKF435 KKF440 KKF445 KKF450 KKF4520 KKF4525 KKF4530 KKF4540 KKF4545 KKF4550 KKF4560 KKF4570 KKF540 KKF545 KKF550 KKF560 KKF570 KKF580 KKF590 KKF5100 KKF670 KKF680 KKF690 KKF6100 KKF6120 KKF6140 KKF6160 KKF6180 KKF6200

HBS+ evo pg. 218 HBSP4540C HBSP4545C HBSP4550C HBSP4560C HBSP4570C HBSP550C HBSP560C HBSP570C HBSP580C HBSP590C HBSP5100C HBSP680C HBSP690C HBSP6100C HBSP6120C HBSP6140C HBSP6160C HBSP6180C HBSP6200C HBSP840C

HZK pg. 229 HZK550 HZK560 HZK570 HZK580

SCI pg. 232 SCI3525 SCI3530 SCI3535 SCI3540 SCI4030 SCI4035 SCI4040 SCI4045 SCI4050 SCI4060 SCI4520 SCI4535 SCI4540 SCI4545 SCI4550 SCI4560 SCI4570 SCI4580 SCI5040 SCI5045 SCI5050 SCI5060 SCI5070 SCI5080 SCI5090 SCI50100

SCI6050 SCI6060 SCI6080 SCI60100 SCI60120 SCI60140 SCI80160 SCI80200 SCI80240 SCI80280 SCI5050A4 SCI5060A4 SCI5070A4 SCI5080A4 SCI5090A4 SCI50100A4 SCB6 SCB8

EWS pg. 236 EWS550 EWS560 EWS570 EWS580

SCS pg. 248 SCS4842 SCS4872 SCS5555 SCS5575

WBAZ pg. 251 WBAZ25A2

MCS pg. 253 MCS4525A2 MCS4535A2 MCS4545A2 MCS4560A2 MCS4525CU MCS4535CU MCS4545CU

MWS pg. 255

SHS3540AS

MWS10100 MWS10140 MWS12120 MWS12160

miniWT pg. 240

SOL pg. 257

CS100930 CS100935 CS100950 CS100955 CS100970 CS100980 CS100990 CS100940 CS100945 CS100960 CS100965

SOL10156 SOL10186 SOL10206 SOL10236 SOL10256 SOLBAZ24

SHS-AS pg. 238

CHAPTER 5 ACCESSORIES

CHAPTER 4 WOOD/METAL SBS - SPP pg. 245 SBS4238 SBS4845 SBS5550 SBS6360 SBS6370 SBS6385 SPP63125 SPP63145 SPP63165

SBN pg. 247 SBN3932 SBN4238 SBN4845 SBN5550

267


PRODUCT LIST

CODES  ALPHABETICAL ORDER UD

133

CS1000010 CS1000015 CS1000020 CS1000025 CS1000030 CS1000035 CS1000040 CS1000045 CS100005 CS1000050 CS100100 CS100105 CS100115 CS100120 CS100125 CS100130 CS100135 CS100140 CS100145

WT

DRS

116

166

174

240

82

nylon ND

66

FE210219

84

FE620001 FE620005 FE620010 FE620015 FE620020

HBS 161

D78202

268

236

FE210086 FE210087 FE210088 FE210089 FE210090 FE210091

DWS

THERMOWASHER 86

D78404 D78406 D78408 D78414

EWS

MBS

CS220016 CS220020

ISULFIX

66

EWS550 EWS560 EWS570 EWS580

CS100930 CS100935 CS100940 CS100945 CS100950 CS100955 CS100960 CS100965 CS100970 CS100980 CS100990

WB

DRT DRT6100 DRT6120 DRT6145 DRT680

CS100900 CS100905

miniWT

64

DRS6100S DRS6120S DRS6145S DRS660S DRS680S

CS100165 CS100170 CS100175 CS100215 CS100220 CS100225 CS100240 CS100245 CS100250 CS100255

VB

128

DGZ7220 DGZ7260 DGZ7300 DGZ7340 DGZ9240 DGZ9280 DGZ9320 DGZ9360 DGZ9400 DGZ9450 DGZ9500

CS100150 CS100155 CS100160

WS

DGZ

87

HBS10100 HBS10120 HBS10140 HBS10160 HBS10180 HBS10200 HBS10220 HBS10240 HBS10260 HBS10280 HBS10300 HBS10320 HBS10340 HBS10360 HBS10380 HBS10400

35

HBS1080 HBS12160 HBS12200 HBS12240 HBS12280 HBS12320 HBS12360 HBS12400 HBS12440 HBS12480 HBS12520 HBS12560 HBS12600 HBS316 HBS320 HBS325 HBS330 HBS3520 HBS3525 HBS3530 HBS3535 HBS3540 HBS3545 HBS3550 HBS430 HBS435 HBS440 HBS445 HBS450 HBS4540 HBS4545 HBS4550 HBS4560 HBS4570 HBS4580 HBS460 HBS470 HBS480 HBS5100 HBS5110 HBS5120 HBS545 HBS550 HBS560 HBS570 HBS580 HBS590 HBS6100 HBS6110 HBS6120 HBS6130 HBS6140 HBS6150 HBS6160 HBS6180 HBS6200 HBS6220 HBS6240 HBS6260 HBS6280 HBS6300 HBS640 HBS660 HBS670 HBS680 HBS690 HBS8100 HBS8120 HBS8140 HBS8160 HBS8180 HBS8200 HBS8220 HBS8240 HBS8260

HBS8280 HBS8300 HBS8320 HBS8340 HBS8360 HBS8380 HBS8400 HBS8440 HBS8500 HBS880

HBS+ evo

HTS545 HTS550 HTS560 HTS570

WASHER 45°

218

HBSP4540C HBSP4545C HBSP4550C HBSP4560C HBSP4570C HBSP5100C HBSP550C HBSP560C HBSP570C HBSP580C HBSP590C HBSP6100C HBSP6120C HBSP6140C HBSP6160C HBSP6180C HBSP6200C HBSP680C HBSP690C HBSP840C HBSP860C HBSP880C

HZD

HTS312 HTS316 HTS320 HTS325 HTS330 HTS3516 HTS3520 HTS3525 HTS3530 HTS3535 HTS3540 HTS420 HTS425 HTS430 HTS435 HTS440 HTS445 HTS450 HTS4530 HTS4535 HTS4540 HTS4545 HTS4550 HTS530 HTS535 HTS540

HUS10 HUS12 HUS6 HUS8 HUS945

HZB

45

HZB430 HZB435 HZB440 HZB445 HZB450 HZB4550 HZB4555 HZB540 HZB545 HZB550 HZB560 HZB565 HZB570 HZB580

HZK

229

HZK550 HZK560 HZK570 HZK580

85

HH10600404 HH10600405 HH10600406 HH10600401 HH10600402 HH10600403 HH10600397 HH10600398

HTS

139

56

KKF

225

KKF430 KKF435 KKF440 KKF445 KKF450 KKF4520 KKF4525 KKF4530 KKF4540 KKF4545 KKF4550 KKF4560 KKF4570 KKF5100 KKF540 KKF545 KKF550 KKF560 KKF570 KKF580 KKF590 KKF6100 KKF6120 KKF6140 KKF6160 KKF6180 KKF6200 KKF670 KKF680 KKF690

KKT KKT540A4 KKT540A4M KKT545A4

KKT550A4 KKT550A4G KKT550A4M KKT555A4 KKT560A4 KKT560A4G KKT560A4M KKT565A4 KKT570A4 KKT570A4G KKT570A4M KKT580A4 KKT580A4G KKT6100A4 KKT6120A4 KKT660A4 KKT680A4 KKTG540 KKTG545 KKTG550 KKTG555 KKTG560 KKTG565 KKTG570 KKTG580 KKTM540 KKTM545 KKTM550 KKTM555 KKTM560 KKTM565 KKTM570 KKTM580 KKTM6100 KKTM6120 KKTM660 KKTM680 KKTX520A4 KKTX525A4 KKTX530A4 KKTX540A4

KOP

211

KOP10100 KOP10120 KOP10140 KOP10150 KOP10160 KOP10180 KOP10200 KOP10220 KOP10240 KOP10260 KOP10280 KOP10300 KOP1050 KOP1060 KOP1080 KOP12100 KOP12120 KOP12140 KOP12150 KOP12160 KOP12180 KOP12200 KOP12220 KOP12240 KOP12260 KOP12280 KOP12300 KOP12320 KOP12340 KOP12360 KOP12380

76


PRODUCT LIST

KOP12400 KOP1250 KOP1260 KOP1270 KOP1280 KOP1290 KOP16100 KOP16120 KOP16140 KOP16150 KOP16160 KOP16180 KOP16200 KOP16220 KOP16240 KOP16260 KOP16280 KOP16300 KOP16320 KOP16340 KOP16360 KOP16380 KOP16400 KOP1680 KOP6100 KOP650 KOP660 KOP670 KOP680 KOP8100 KOP8120 KOP8140 KOP8160 KOP8180 KOP8200 KOP850 KOP860 KOP870 KOP880

MCS

SBS SBS4238 SBS4845 SBS5550 SBS6360 SBS6370 SBS6385

SCB

SCH

253

257

MWS10100 MWS10140 MWS12120 MWS12160

LBS

60

PF603525 PF603540 PF603550 PF603560 PF603570

SBN SBN3932 SBN4238 SBN4845 SBN5550

232

SCB6 SCB8

MCS4525A2 MCS4525CU MCS4535A2 MCS4535CU MCS4545A2 MCS4545CU MCS4560A2

MWS

245

SCI

247

70

SCH440 SCH450 SCH4545 SCH4550 SCH4560 SCH4570 SCH460 SCH470 SCH5100 SCH5120 SCH550 SCH560 SCH570 SCH580 SCH590 SCH6100 SCH6120 SCH6140 SCH6150 SCH6160 SCH6180 SCH6200 SCH6220 SCH6240 SCH6260 SCH6280 SCH6300 SCH680 SCH690 SCH8140 SCH8160 SCH8180 SCH8200 SCH8220 SCH8240 SCH8260 SCH8280 SCH8300 SCH8320 SCH8340 SCH8360 SCH8380 SCH8400

SCI3525 SCI3530 SCI3535 SCI3540 SCI4030 SCI4035 SCI4040 SCI4045 SCI4050 SCI4060 SCI4520 SCI4535 SCI4540

SCI4545 SCI4550 SCI4560 SCI4570 SCI4580 SCI50100 SCI50100A4 SCI5040 SCI5045 SCI5050 SCI5050A4 SCI5060 SCI5060A4 SCI5070 SCI5070A4 SCI5080 SCI5080A4 SCI5090 SCI5090A4 SCI60100 SCI60120 SCI60140 SCI6050 SCI6060 SCI6080 SCI80160 SCI80200 SCI80240 SCI80280

SCS

SOL10236 SOL10256 SOLBAZ24

SPP

SUS

TBS

248

238

SHS3530 SHS3540 SHS3540AS SHS3550

SKR-SKS

232

183

SKR10100 SKR10120 SKR10140 SKR10160 SKR1080 SKR12100 SKR12120 SKR12140 SKR12160 SKR12200 SKR12240 SKR12280 SKR12320 SKR12400 SKR75100 SKR7560 SKR7580 SKS75100 SKS75120 SKS75140 SKS75160 SKS7560 SKS7580

SOL SOL10156 SOL10186 SOL10206

VGZ 70

SUS6 SUS8

SCS4842 SCS4872 SCS5555 SCS5575

SHS-AS

245

SPP63125 SPP63145 SPP63165

257

49

TBS10160 TBS10180 TBS10200 TBS10220 TBS10240 TBS10260 TBS10280 TBS10300 TBS10320 TBS10340 TBS10360 TBS10380 TBS10400 TBS6100 TBS6120 TBS6140 TBS6160 TBS6180 TBS6200 TBS6220 TBS6240 TBS6260 TBS6280 TBS6300 TBS680 TBS8100 TBS8120 TBS8140 TBS8160 TBS8180 TBS8200 TBS8220 TBS8240 TBS8260 TBS8280 TBS8300 TBS8320 TBS8340 TBS8360 TBS8380 TBS840 TBS8400 TBS860 TBS880

VGS

VGS9160 VGS9200 VGS9240 VGS9280 VGS9320 VGS9360

101

VGZ7100 VGZ7140 VGZ7180 VGZ7220 VGZ7260 VGZ7300 VGZ7340 VGZ9160 VGZ9200 VGZ9240 VGZ9280 VGZ9320 VGZ9360 VGZ9400 VGZ9450 VGZ9500

WBAZ

251

WBAZ25A2

WRT

150

WRT131000 WRT13400 WRT13500 WRT13600 WRT13700 WRT13800 WRT13900 WRT9250 WRT9300 WRT9400 WRT9450 WRT9500 WRTT9350

139

VGS11100 VGS11150 VGS11200 VGS11250 VGS11300 VGS11350 VGS11400 VGS11450 VGS11500 VGS11550 VGS11600

269


PRODUCT LIST

SCREWS ď&#x161;ş ALPHABETICAL ORDER

270

screw name

description

material and coating

pg.

DGZ DRS DRT DWS EWS HBS HBS+evo HTS HZB HZD HZK ISULFIX KKF KKT KOP LBS MBS MCS mini WT MWS SBN SBS SCH SCI A2 SCI A4 SCS SHS SHS AS SKR SKS SOL SPP TBS THERMOWASHER UD VGS VGZ VB WB WBAZ WRT WS WT

double thread fastener for insulation wood/wood spacer screw wood/brickwork spacer screw drywall screw hardwood screw countersunk screw exterior screw, pan head countersunk total thread screw HBS bound screws DWS collated drywall screw KKF bound screws anchor for fastening insulation to brickwork exterior screw, pan head exterior screw, conical head lag bolt DIN571 round-head screw with cylindrical under head cylindrical head self-threading screw for brickwork screw with washer for sheet metal small-size twin-thread screw metric + wood connector screw self-tapping metal screw self-tapping wood/metal screw countersunk screw exterior screws, countersunk head exterior screws, countersunk head self-tapping wood/metal screw for exterior use small-head screw small-head screw screw anchor for concrete screw anchor for concrete screws for fastening photovoltaics on wood self-tapping wood/metal screw large-head screw washer to fasten insulation to wood double thread fastener for insulation full thread connector with countersunk head full thread connector with cylindrical head connector for wood-concrete floors structural reinforcement system stainless washer with sealing gasket full thread connector with countersunk head self-perforating dowel double thread connector

carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating phosphate-coated carbon steel stainless steel AISI410 carbon steel with white galvanic zinc coating carbon steel with revodip coating carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating phosphate-coated carbon steel stainless steel AISI410 PVC system with carbon steel nail stainless steel AISI410 available in carbon steel with organic coating and A4 stainless steel available in carbon steel with white galvanic zinc coating and in stainless steel A2 carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating A2 stainless steel with A2/EPDM washer carbon steel with durocoat carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating carbon steel with yellow galvanic zinc coating stainless steel A2 stainless steel A4 stainless steel A2 carbon steel with white galvanic zinc coating stainless steel AISI410 carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating A2 stainless steel with EPDM gaskets carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating propylene system carbon steel with durocoat carbon steel with white galvanic zinc coating carbon steel with white galvanic zinc coating carbon steel with black galvanic zinc coating carbon steel with white galvanic zinc coating A2 stainless steel with EPDM gasket carbon steel with durocoat carbon steel with white galvanic zinc coating carbon steel with durocoat

126 64 66 84 236 32 216 54 44 85 229 87 222 208 74 60 82 252 240 254 247 244 68 230 230 248 58 238 180 180 256 244 46 86 132 136 98 172 160 250 148 164 114


NOTES

271


NOTES

272


NOTES

273


274


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Screws for wood - EN  

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Screws for wood - EN  

With 42 types of screws. The widest range in this sector.