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Solar-field DP325 Technical manual for photovoltaic free-fields with double pile foundations


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1. Double pile support system for free-fields 1.1 GENERAL The double pile support system for free-fields is made from galvanized steel. The quality of the steel finish has a minimum coating of hot dip galvanization 45 microns. The purlins can be either from aluminium or galvanized steel. All of the steel accessories (bolts, nuts, etc...) are made from stainless steel A2. The system is available in 2 versions, 2 portrait & 3 landscape with angles of 25°,30°,35°. The foundation of the system can be made with steel driven piles or with concrete piles.

Typology

Double Pile 25°

Double Pile 30°

Double Pile 35°

Purlin

PV panel layout

Code

Aluminium

Portrait

DAP-25

Aluminium

Landscape

DAL-25

Galv. Steel

Portrait

DGP-25

Galv. Steel

Landscape

DGL-25

Aluminium

Portrait

DAP-30

Aluminium

Landscape

DAL-30

Galv. Steel

Portrait

DGP-30

Galv. Steel

Landscape

DGL-30

Aluminium

Portrait

DAP-35

Aluminium

Landscape

DAL-35

Galv. Steel

Portrait

DGP-35

Galv. Steel

Landscape

DGL-35


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2. Assembly of support system

The individual parts for assembling the support system are provided with the necessary machining for easier and faster installation.

2.1 PILE FOUNDATION Pile driving should be performed by specialist, and should be according to the installation specifications and drawings. The piles should be placed with the large surface area parallel to the North-South axis.

S

Pile Foundation

Concrete Foundation

The depth of the foundation is determined by the soil conditions and may vary for reinforced concrete.

Depth of foundation

Depth of foundation


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2.2 INSTALLING THE GIRDER CONNECTOR The girder connector is fastened inside the web of the pile with stainless steel fasteners M10x25 on each side and safety nuts M10.

Girder Connector

Safety nut M10

Fastener Μ 10x25 Pile

2.3 INSTALLING THE GIRDER The girder beam is fastened over the top of the girder connector with two fasteners M10x25 and safety nuts M10.

Girder Beam

Fastener Μ 10x25 Girder Connector

Safety nuts M10

Pile


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3. Installing and aligning the support structure The piles are placed in rows and are spaced at a maximum distance of 3,25 meters. If needed the girders can be adjusted in order to insure the correct alignment.

5m 2 , 3 5m 3,2 3.1 ADJUSTMENTS The following adjustments can be made: The girder connector can be adjusted in the vertical direction +/- 2cm The girder beam can be adjusted in the horizontal direction +/- 2cm

Steel fastener for girder beam

Girder beam

Girder connector

Screw fastener for girder connector

3.3 TABLE FOR FASTENER TORQUE Drawing

Description

Torque

Fastener Μ 10x25

56 Nm


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4. Installing purlins Two types of purlins are available: 타 Aluminium purlin ( SolarPrime) 타 Steel purlin ( FUS62 )

4.1 ALUMINIUM PURLIN ( SolarPrime ) The aluminium purlin (Solar Prime) is fastened to the steel girder beam with the corner clamp connector that is inserted into the channel on the side of the purlin and then it is fastened with an allen screw and a safety nut M8 to the girder beam.

Aluminium purlin Allen screw M8x30

Safety nut M8

Corner clamp connector Girder beam

4.1.1 PURLIN CONNECTOR When the purlin is used continuously to span over several girders, then a special purlin connector is used to fasten the two purlins together. The purlin connector is inserted into the chamber of the purlin and fastened with self-tapping stainless steel screws. Screw St4,2x13 Purlin Aluminium purlin connector


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4.2 STEEL PURLIN ( FUS62 ) For connecting the steel purlin (FUS62) to the girder beam, use an allen screw M12x30 and M12 washer with safety nut M12.

Allen screw M12x30 Washer M12

Steel purlin

Safety nut M12

Girder beam

4.2.1 PURLIN CONNECTOR When the purlin is used continuously to span over several girders, then a special purlin connector is used to fasten the two purlins together. The purlin connector is fastened to the under side of the purlin with four allen screws M12x30 and washers M12. Safety nuts are not required as the connector has been threaded to directly receive the M12 bolts.

Allen screw M12x30 Washer M12 Steel purlin

Steel purlin connector


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5. Installing the panels The panels are fixed to the purlins with special clamps. There are end clamps that are used to fix the panels at the beginning and the end of a series, and there are middle clamps that are used between two panels. The clamps are available preassembled (with allen screw, spring, plastic grip, hammer-head nut) and are availble for every panel thickness.

The hammer head nut is inserted into the channel of the purlin and turned to lock into the desired position. Then the clamp is fastened into place with the allen screw.

Allen screw Clamp

Hammer head nut


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6. Technical data sheets 1- point load F

SolarFine 150

L/2

Height

150 mm

Width

41 mm

Perimeter

522,34 mm

Ix

229,10 cm4

L 2- point load F L/3

25,71

Iy

cm4

Wx

29,68 cm3

Wy

cm3

12,54

F L/3 L

2 supports - Uniformly load q

Radii(x)

5,06 cm

Radii(y)

1,70 cm

L

Area

894,02 mm2

3 supports - Uniformly load

Weight

2413,85 gr/m

F (N) 20000

qL

qL

L

L

SolarFine 150

19000 18000 17000 16000 15000 14000 13000 12000

3-supports

11000

2-supports

10000 1 point load

9000 8000

2 point load

7000 6000 5000 4000 3000 2000 1000 0 0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

5,5

6 L (m)


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1- point load F

SolarFine 100 L/2

Height

100 mm

Width

41 mm

Perimeter

422,34 mm

L 2- point load F

F

cm4

Ix

78,53

Iy

18,79 cm4

L/3

L/3 L

Wx

14,87

cm3

Wy

9,17 cm3

Radii(x)

3,32 cm

Radii(y)

1,62 cm

Area

714,02 mm2

Weight

1927,85 gr/m

2 supports - Uniformly load q

L 3 supports - Uniformly load qL

qL

L

L

SolarFine 100

F (N) 15000 14000 13000 12000 11000 10000

3-supports 9000

2-supports

8000

1 point load

7000

2 point load

6000 5000 4000 3000 2000 1000 0 0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

5,5

6

L (m)


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SolarPrime 105

1- point load

F

105 mm

Width

77,8 mm

Perimeter

490,32 mm

Ix

107,81 cm4

Iy

39,11 cm4

Wx

18,24 cm3

Wy

10,05 cm3

Radii(x)

3,75 cm

Radii(y)

2,26 cm

Area

768,05 mm2

Weight

2073,72 gr/m

2 supports Uniformly load q

2- point load

F

Height

F

3 supports Uniformly load qL qL

L/3 L/3

L/2

L

L

L F (N)

L

SolarPrime 105

15000 14000 13000 12000 11000 10000

3-supports

9000

2-supports 8000 1 point load 7000 2 point load 6000 5000 4000 3000 2000 1000 0 0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

5,5

6 L (m)

L


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SolarPrime 80

1- point load

F L/3

L/2

F

Width

77,8 mm

Perimeter

440,32 mm

Ix

53,90 cm4

Iy

34,43 cm4

Wx

12,00 cm3

Wy

8,85 cm3

Radii(x)

2,80 cm

Radii(y)

2,24 cm

Area

688,05 mm2

Weight

1857,72 gr/m 3 supports Uniformly load qL qL

L/3 L

L

L

80 mm

2 supports Uniformly load q

2- point load

F

Height

L

SolarPrime 80

F (N) 15000 14000 13000 12000 11000 10000

2-supports 9000 3-supports 8000

1 point load

7000

2 point load

6000 5000 4000 3000 2000 1000 0 0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

5,5

6 L (m)

L


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1- point load

FUS 62

F

Height

62 mm

Width

41 mm

Perimeter

365,19 mm

Ix

17,70 cm4

Iy

12,90 cm4

Wx

5,62 cm3

Wy

6,29

cm3

Area

405 mm2

L/2 L 2- point load F L/3

F L/3 L

2 supports - Uniformly load q

Weight

3270 gr/m L 3 supports - Uniformly load

F (N) 10000

qL

qL

L

L

FUS 62

9500 9000 8500 8000 7500 7000 6500 6000

3-supports

5500

2-supports

5000 1 point load

4500 4000

2 point load

3500 3000 2500 2000 1500 1000 500 0 0,5

1

1,5

2

2,5

3

3,5

4

4,5

5

5,5

6 L (m)


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7. Structural design loads of brackets Load 1: Vertical compression (10kN) Load 2: Horizontal forces

(10kN)

Load 3: Vertical tensile forces (10kN)

10kN 10kN

10kN


Founded in 1958, the fischer brand is synonymous for safe, innovative and sophisticated technical solutions which set new standards in fixing engineering. The products and applications are unique fixing systems that are invented and produced by fischer. That is the reason that there exist unlimited solutions and a large range of applications, and today is recognised as the leader in the market of fixing systems.

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Screws

Foams, Sealants

E.W.I. / ETICS

fischer Hellas Emporiki EPE National Road Athens-Lamia (17th) & 6 Roupel str. GR - 14564 Kifissia, Athens Greece Tel.: +30 210 28 38 167, Fax: +30 210 28 38 169 info@fischer.gr

www.fischer.gr

The contents of this manual are subject to change without prior notice. Fischer Hellas Emporiki EPE is not responsible for typographical errors. PLS012 05/2012

1958, the beginning. 2012, world-wide.


Fischer Solar Field DP325