The Formwork Magazine
2/2009 · www.doka.com
Original Doka parts – top quality and top performance
Superior product quality
Maximum crane independence
Building on innovation
Speedy on-site progress
Original Doka parts … Page 3
Interview with Rainer Spitzer … Page 6
Ocean Financial Center … Page 12
Obel Tower Belfast … Page 15
Doka News Catwalks reduce hoists Italy – As part of the modernisation of a cement plant, four 90 m high towers were built using automatic climbing formwork SKE 50. To make access to the workplaces as efficient as possible, the towers were linked to one another by catwalks. This made it possible to use three fewer building-site hoists.
Dear readers; The slide in construction demand triggered by the global economic crisis now appears to be slowing. By taking swift and decisive action, and with its sound corporate structure, Doka has coped well with this phase of drastic market shifts. Analysis of the latest construction data shows construction volumes shifting towards the civil engineering segment, which is expected to experience significant growth in many countries once again in 2010. This is a field where Doka is very much at home, as it was civil engineering projects that launched us on our success story more than 50 years ago. Since then, Doka has supplied countless infrastructure, power-station and other civil engineering projects, continually developing and improving the formwork technology used. Some recent examples of this include the new Cantilever Forming Traveller, the Composite Forming Carriage and the Forming Wagon TU. And with climbing systems like SKE 50 plus and Xclimb 60, of course, Doka also caters ideally to the needs of the civil engineering segment. What is more, Doka bundles its expert know-how in special Competence Centres, so as to deliver the very best customer-benefit for all fields of construction.
Huge pylons climbed
Israel – Doka Israel supplied framed formwork Frami, large-area formwork Top 50, Dokaflex tables and Staxo for two new pharmaceutical factories in Israel. The floor area is 45,000 m2. The 9.00 m height of the halls presented a special construction challenge.
Ukraine – The industrial metropolis of Zaporozhye is being given a new cable-stayed bridge whose 150 m tall, H-shaped twin pylons are being raised by automatic climbing formwork SKE 50, in 40 casting sections. The massively sized cross-beam is being shored by Staxo 100 load-bearing towers.
Doka – superior product quality Building on innovation Interview with Rainer Spitzer Frami Xlife
Massive savings in labour costs
Flexible climbing saves crane time
Severn Trent Water, UK
Maximum independence from crane
Speedy on-site progress In brief
Optimal solution for tight site
400 5th Avenue, USA
Cantilevering within budget and on time
Wishing you continued success! Yours, Josef Kurzmann Executive Director, Doka Group
Doka – superior product quality
p The Doka “classic” – its premium three-ply sheet.
Doka strives to meet, and even exceed, its customers’ high expectations by offering solutions that are both technically and economically superior. A key contribution is made here by the outstanding product quality of its system components. Doka formwork systems stand out for the extremely high quality of the system components they use – such as sheets, beams, props, etc. So when it comes to reconditioning and replacing your equipment, why settle for anything less? The only way to ensure the long service life, superior performance and safety of the overall system is with original Doka parts. But even if all you need is to have a few components rushed to your
site – Doka is a “one-stop supplier” for the whole spectrum of your formwork needs. The best 3-ply-sheets Doka has over 50 years’ experience of manufacturing 3-ply-sheets. Doka has been continually refining and improving this product for decades. All 3-plyContinued on Page 4 >>
p Doka floor props are fully loadable over their entire extension length.
q Doka manufactures its formties and suspension cones in uncompromisingly high quality.
sheets are available in thicknesses of 21 mm and 27 mm. Doka’s 3-SO is a 3-ply-sheet that stands out for its extrahigh dimensional stability and durability. A special production technique drastically reduces cracking in the face layers. In certain markets, the lower priced quality sheet 3-S eco is also available for purchase. The 3-S plus formwork sheet has the same excellent properties as the 3-SO. For extra-long durability, one side of
the sheet is sealed with PU varnish and covered with corundum particles, which also have “anti-slip” properties. These top-quality sheets are the standard decking for Dokamatic tables. As well as 3-ply formwork sheets, Doka also offers the Dokaplex multi-layer board made of phenolic-resin-coated Finnish birch. Dimensional stability, smooth, clean concrete finishes and high numbers of re-use cycles are a natural result of its high-quality design and manufacture. Where an even longer lifespan is required, the Xlife sheet is the Number 1 choice. Timber-plastic composites make this the ideal form-facing for very high numbers of re-use cycles, e.g. for tunnel formwork travellers on civil-engineering projects. It can also be nailed, and easily cleaned by high-pressure washer. Formwork beams with integral shock absorbers Doka pioneered the development of modern timber formwork beams and today supplies one of the best products on the market. The Doka beam H20 top is made of 100% strength-tested timbers from ecologically sustainable forests – for the very highest safety and
load-bearing capacity. Polyurethane shock absorbers give the ends of the beams highly effective protection against being dropped onto concrete floors. The “H20 top” is available in lengths of up to 5.90 m. The H20 eco formwork beam offers high quality at low costs and is offered by Doka for sale in certain markets. The lightest floor props Alongside formwork beams, floor props are especially safety-critical components. Eurex top is as tough as they come, yet is still the lightest floor prop in its class. Its high load capacity of either 20 kN or 30 kN is guaranteed across its entire extension length, of course. An integral profiled impact protector also safeguards the outer tube against being damaged while floor-slab formwork is being lined-and-levelled. The result is a drastic reduction in the number of jammed floor props. In certain markets, Doka also offers the lower-cost Eco 20 floor prop for sale. Maximum safety Other highly safety-critical components are form-ties and suspension cones. For Doka, only uncompromising quality is good enough here. After all, when you’re working with a climbing formwork
system several hundred metres above the ground, you can’t afford to risk any experiments. All these components are forged and galvanised. Another advantage: Together with the rugged Doka wall formwork, the high load-bearing capacities of the Doka tie-rod systems save you very many form-tie points – which cuts your labour and materials costs.
p Long service life - the new hand-set formwork Frami Xlife.
Doka has a complete program for ensuring workplace safety for the site crew and for safeguarding slab-edges. Ladder systems, working and pouring platforms, handrail posts & clamps, stair towers – Doka delivers all these safety products right to your site, with system solutions to match.
q Doka offers a complete program for ensuring workplace safety.
The lightweight framed formwork for walls, columns and foundations Doka’s Frami Xlife framed formwork system can either be manhandled or lifted by crane. Its galvanised steel frames are so strong that only a small number of form-ties are needed. In this way, foundations, columns and walls can all be formed cost-effectively, with only one system needed on the site. The various panel sizes, with heights of between 1.20 m and 3.00 m, are easy to combine here in a 15 cm grid.
„Our customers can select the individual services they need from our extensive portfolio, identifying precisely what is necessary for each successful build.“
Building on innovation In this interview with Doka Xpress, Rainer Spitzer, Engineering Director of the Doka Group, gives us a flash preview of the big new developments in formwork that Doka will debut at the bauma 2010 trade fair. Doka came to bauma 2007 with the TLS Table Lifting System, Xclimb 60 universal climbing formwork and Staxo 100 load bearing towers – a whole raft of innovations to present to the trade public. What new products will Doka have on show as attention-grabbers at bauma 2010? The bauma trade fair has always been Doka’s most important platform for showcasing the new products that underpin our standing as the innovation leader in the formwork sector and
a competent partner for the international construction industry. So once again this will be our venue for unveiling groundbreaking innovations and product evolutions for every aspect of formwork engineering. Could you be more specific – what does Doka have in store for us in the field of construction engineering and high-rise projects, for example? Rising cost pressure and increasingly short times to completion are always
November 2009 the big challenges in the carcass-work phase. Our innovative formwork solutions are there to help our customers meet precisely these challenges. Our approach is process-oriented. In other words, our systems have to be matched to each other, they have to be integrative and they have to combine well on site. New system-variable safety systems, moreover, will bring about a definitive improvement in safety on construction sites. At bauma 2010 we will also be presenting a new load-bearing tower that sets new standards for cost efficiency, versatility and ergonomics. A significant saving on weight by comparison with other scaffolding solutions was one of the key design features we wanted built into this new system. In beam formwork we will be launching some major developments geared toward faster forming and minimised material deployment on site. Frami framed formwork and our KS column formwork will be debuting with Xlife panels, because this extremely wear-resistant sheeting ups the number of use cycles. Automatic climbing formwork is one of Dokaâ€™s key areas of expertise. What new Doka developments will be drawing all eyes in this branch of construction engineering? One of the things we will be showing is a logical evolution of our TLS Table Lifting System. That combines with another new development, a transporter for
tableforms, and makes forming for floor slabs one hundred percent independent of crane availability. SKE 50 plus automatic climbing formwork was in the prototype phase when we showed it at the last bauma; now it is fully operational and is supplemented by highly efficient shaft formwork designed specifically for working in tight spaces â€“ for example a single climbing unit, positioned centrally, is all it needs to climb the shaft. You also mentioned services. What new developments can the bauma public expect to see here? We are a supplier of complete solutions: throughout the carcass-work phase we provide the backup professional services that construction companies need â€“ that is how we establish the preconditions for speedy, economical forming. Doka's service offerings have been designed accordingly; they are modular, structured to match the various phases in the construction process, and subdivided into clearly defined one-by-one services. Our customers can select the individual services they need from our extensive portfolio, identifying precisely what is necessary for each successful build and benefitting directly from what amounts to a services package tailored precisely to the specifics of the individual project. Many thanks for talking to us today.
New from Doka
Column formwork KS Xlife and framed formwork Frami From now on, all new panels of the Column formwork KS and Frami framed formwork systems will come fitted with the premium Xlife sheet as standard. Its unique plastic coating delivers very high numbers of re-use cycles and a superior concrete finish. The special surface structure prevents flaking and swelling caused by nail-holes. The Frami framed formwork Xlife is now even more versatile, as it is available in panel heights ranging from 1.20 m to 3.00 m.
u The 133 m tall “Orix Tower” is rising at an extremely cramped downtown site in the heart of the bustling Japanese megacity of Osaka.
Practical tip from Doka
Automatic climbing formwork SKE 50 plus On both cores and facades, SKE 50 plus is the ideal system for completing tall structures in short times. A big advantage of the system is that it lets you operate as many as 20 automatic climbers from just one hydraulic unit. This means that several platform units can be climbed up to the next casting section “in sync”. Because the platforms all stay at the same level, this enhances on-site safety as no drop-off edges open up between the platforms. Another advantage is that the crane is left available for other tasks, like lifting rebar into place. This reduces the times spent waiting for the crane, and can even make it possible for the site to dispense with one crane altogether. SKE 50 plus also helps to ensure uninterrupted construction operations when windspeeds rise, as the climbing scaffold is anchored to the structure at all times. Thanks to the high load capacity of 50 kN per bracket, all service loads can be left on the platforms while these are being climbed.
With SKE 50 plus, it is possible to operate up to 20 hydraulic cylinders simultaneously. q
Massive savings in labour costs The 133 m tall “Orix Tower” office building is rising at an extremely cramped downtown site in the Japanese megacity of Osaka. Doka was chosen as the JIT supplier of the self-climbing formwork solution for the 3-cell structure core. Contractors Takenaka Corporation have only 10 months in which to finish the structure shell for this 31-storey high-rise. This is the first time in Japan that a CIP concrete core has ever been combined with a steel construction.
In Japan, cast-in-place concreting is generally performed with traditional formwork. For the CIP concrete core of the Orix Tower, however, Takenaka opted for modern formwork technology from Doka. And for obvious reasons:
The facts JOBSITE
Orix Tower Osaka, Japan
Takenaka Corporation NUMBER OF FLOORS 31 HEIGHT 133 m PURPOSE Office Space FORMWORK CONSULTING
The Solution Doka provided the self-climbing formwork solution SKE 50 plus for the walls of the CIP concrete cores. This formwork solution is completely enclosed on the outside with trapezoidal sheeting, to protect the people working on the core.
The forming operations can be carried out by only a third of the workforce needed for traditional formwork, leading to dramatic savings in labour costs.
cylinders, only a few millimetres’ leveldifference occurs between the platforms while the 30 m long platform gang is being climbed.
Smooth climbing with SKE 50 plus For the walls of the CIP concrete cores, 26 automatic climbers SKE 50 plus are in action on the outside, and 28 on the inside. The great advantage: Groups of 20 cylinders can be served from just one hydraulic unit. In this way, the entire 720 m² area of the formwork takes less than four hours to shift up to the next storey every week.
Safety at all levels Owing to the stringent safety regulations in force in Japan, the formwork solution is completely enclosed on the outside with trapezoidal sheeting, from the working platform upwards. A middle intermediate platform, which can be tilted inward to facilitate formwork removal, provides safe access to the waling level of the 4.10 m high timberbeam formwork elements.
Another advantage is that the precisely synchronised motion of all the cylinders ensures smooth, jerk-free climbing. On the Orix Tower, the individual platforms are all linked together, for safety reasons, and are only opened at two points for the climbing operation. Thanks to the precise synchronisation of all the
The follow-up platforms are also completely enclosed, in this case with scaffolding tubes and safety netting. The generously dimensioned top platform level is used for setting down reinforcing steel and for installing the site infrastructure.
Takenaka Corp. Deputy Project Superintendent Katsuyuki Hirao
The Professional We are really pleased with the automatic climbing formwork SKE 50 plus. Using traditional timber formwork, we could never achieve a weekly cycle like we are doing here. Now we only need around a third as much labour.”
u Tailored for economy and flexibility, the Doka climbing formwork Xclimb 60 system is making its UK debut on the two central cores of the new HQ building for Severn Trent Water.
Flexible climbing saves crane time The Facts Severn Trent Water HQ building Location Coventry; UK Customers BAM Construction and Concentral Ltd. Jobsite
Systems in use
Climbing formwork Xclimb 60, Dokamatic tables, Table Lifting System TLS Requirement
The forming operations have to be carried out with extremely limited craneage.
The Solution The structure cores are being formed by automatic climbing formwork Xclimb 60. When sufficient crane time is available, this system can also be repositioned by crane. The floor-slab formwork is moved up to the next storey independently of the crane, by the Table Lifting System.
Climbing formwork Xclimb 60 and the Table Lifting System TLS are taking a lot of pressure off the limited craneage available at the site of Severn Trent Water’s new HQ building. Space constraints at this inner-city location have necessitated very tight scheduling of both operations and materials. By pre-assembling the formwork systems at its Sheffield Branch and assuring JIT deliveries, Doka is playing a key role in simplifying the logistics. Another constraint here is limited craneage – which is why contractors Concentral Ltd. decided to field Doka automatic climbing formwork Xclimb 60 and the Table Lifting System TLS. Flexible climbing of in-situ concrete cores Tailored for economy and flexibility, the Climbing formwork Xclimb 60 is making its UK debut on the two central cores. “A huge advantage of the system for us is that we can choose between raising the climbing formwork with a crane-lift or independently of the crane using hydraulic cylinders”, explains project manager Martin Swift. To ensure
smooth climbing operations, an experienced Doka Site Demonstrator gave the site crew thorough instruction in how to handle the formwork. Table Lifting System for fast formwork operations The site crew are forming 16,000 m² of slabs with high-speed Dokamatic tables. “With the Dokamatic tables we can form the floor slabs much more economically than if we were using an ordinary strike-and-erect formwork system”, says Martin Swift. To be able to move the tables up the next floor independently of the crane, the site engineers decided to use the Doka Table Lifting System TLS, so as to completely separate the slabforming work from all other construction operations. The result is a continuous, troublefree workflow in every phase of the forming assignment.
Cantilevering within budget and on time The 320 m long “Ponte do Paiva” across the Rio Jaboatão in the northeast of Brazil has a clear span of 135 m. As its formwork supplier, Via Parque S.A. opted for Doka Brasil, which for over 30 years has been a strong partner to construction firms in Brazil.
The facts JOBSITE
Ponte do Paiva Pernambuco
Via Parque S.A./Odebrecht CONSTRUCTION METHOD
Balanced cantilever forming LeNgth
320 m with a span of 135 m FORMWORK CONSULTING
The four cantilevered forming carriages were fitted with a total of 1000 m² of Large-area formwork Top 50. The formwork solution called for particular flexibility in the seventh casting section, which at 5 m in length is twice as long as a typical section. Using stacking plates and 1.80 m long formwork beams, it was possible to lengthen the formwork to the desired dimensions swiftly and safely. To ensure the very highest workplace safety, all the working platforms were equipped with guard rails. A Doka field service technician was on hand to assist the site
team with advice and practical help throughout the start-up phase. Pier-head formed with high-speed framed formwork The forming operations on the foundations of the pier had to be started even though the crane had not yet been erected. Doka Brasil thus supplied the site with the lightweight but very rugged framed formwork Frami, whose low weight means that it can be shifted by hand. Even without crane assistance, some very good forming-times were achieved with it on the site.
The Solution Doka Brasil delivered 1.000 m² of Top 50 large-area formwork for the forming travellers, and the framed formwork system Frami for the foundations.
p The bridge will have 2 traffic lanes, and a pedestrian and cycle lane.
t The 320 m long bridge across the Rio Jaboatão is being formed using four forming carriages and Doka timber-beam formwork.
p 84 Doka Xclimb 60 automatic climbers are dealing with the 55 concreting sections of the Ocean Financial Centre's concrete core.
Maximum independence from crane Used here as automatic climbing formwork for the core walls, as shaft formwork and as a protection screen, versatile Xclimb 60 scores every time for easy handling and excellent cost efficiency.
November 2009 the World Financial Centre in Peking, the Two International Finance Centre in Hong Kong and the impressive Petronas Twin Towers in Kuala Lumpur. The contracting JV of Obayashi and Woh Hup opted for a single-source comprehensive solution from Doka. Climbed with absolutely no crane assistance Craneage on site was always going to be extremely limited, so the formwork for the central core was designed for maximum independence from the crane. 84 Doka Xclimb 60 automatic climbers are dealing with the 55 concreting sections of the central concrete core, which is further subdivided into six main shafts. The versatility of this highly cost-effective system was the crunch factor in the project owner’s decision in favour of Doka’s Xclimb 60 automatic climbing formwork. The manually controlled hydraulic cylinders enable the various working platforms to be climbed perfectly in step with progress on the build. The formwork for the six shafts is also climbing automatically on Xclimb 60 brackets, and here again no craneage is involved.
The Facts The Jobsite
Ocean Financial Centre Location Singapore Requirements Completely crane-independent forming solution for the 240 m tall concrete core and maximum workplace safety during the slab forming operations Products in use Automatic climbing formwork Xclimb 60, Shaft platforms Xclimb 60, Large area formwork Top 50, Protection screen Xclimb 60
The Solution With Xclimb 60, the formwork for the central CIP concrete core is climbed 100% hydraulically. Automatic climbing formwork Xclimb 60 is also being used in the shafts. Work on the top four storey levels is safeguarded by the Protection screen Xclimb 60.
The site crew from the Obayashi and Woh Hup JV knows exactly how to step through the routine and is maintaining a five-day cycle for the concreting sections. It was important to decouple the entire concreting process on the central building core as effectively as possible from crane availability, so a concrete pump distributor weighing over 13 tonnes was climbed alongside the formwork on a powerful Doka SKE 100 automatic climbing rig.
The 240 m Ocean Financial Centre will be Singapore’s first green-build office high-rise. A very large solar-panel array and the first hybrid chilled water system in SE Asia’s financial metropolis will contribute to the eco-friendly lifecycle of the tower with its 850,000 m² of office floorspace. The architecture has the dynamic appeal of a shorefront facade inclined toward the marina and was designed by world-renowned architects Pelli Clark Pelli, the firm whose portfolio includes
Xclimb 60 protection screen for maximum safety A top priority on the Ocean Financial Centre project was to maintain a very high safety standard throughout the shell construction phase, combined with short work cycles and speedy progress. In order to ensure a safe working environment for everyone engaged in forming the floor slabs, the top four floors are constantly enclosed by a large Xclimb 60 protection screen made of trapezoidal metal sheeting. Like the formwork for the building’s central core, the protection screen is climbed hydraulically from one section to the next.
Project Manager Kato San
The Professional Crane capacity was very restricted, so by opting for this singlesource automatic climbing solution for the central core and the shafts we cost-effectively sectioned off this part of the build and were able to adhere to the very tight schedule.”
Optimal solution for tight site A 57-storey hotel and residential tower is being built a few blocks from the Empire State Building in New York. In order to meet time and space constraints, contractor Navillus chose Doka to supply the formwork solutions.
The facts JOBSITE
400 5th Avenue LOCATION
New York, United States CUSTOMER Navillus NUMBER OF FLOORS 57 HEIGHT 193 m PURPOSE
Hotel & condominiums FORMWORK CONSULTING
The Solution Doka USA provided the guided Protection Screen Xclimb 60 for full perimeter protection of the working floor and three floors below. Five Xclimb 60 loading platforms were delivered to transport materials from one level to the next. u Just a few blocks from the Empire State Building, contractor Navillus is using Doka formwork to build this 57-storey hotel- and residential tower.
The project is using 22 Xclimb 60 protection screens and five loading platforms, in order to ensure a safe working environment, reduce workers fears related to falling as well as save on insurance premiums. The room-high enclosure provides complete protection around the perimeter edges of the floor slabs where edge falsework and column-forming operations are performed. The protective screen sheeting is available in a perforated sheet for warm weather conditions and as a solid sheet for colder climates. Construction started in December 2008
and the screen was installed in June 2009. Doka pre-assembled the formwork with two crews in Little Ferry, N.J. Easy transport of materials Five Xclimb 60 loading platforms were used at the site to transport materials from one level to the next. These loading platforms, which climb on the buildingâ€™s exterior, allow for easy cycling of slab formwork, and safe climbing, even in bad weather. Working conditions on the high-rise were as safe as those on the ground.
t The central CIP core of the Obel Tower is being climbed with 22 Doka SKE 50 automatic climbers.
The Facts Jobsite
Belfast, Northern Ireland Requirements
Crane independent formwork solution for the 80 m high central core and the 26 floors Contractor
Fernwave Ireland Ltd. Products in use
Automatic climbing formwork SKE 50, Protection screen Xclimb 60, Dokaflex tables
Speedy on-site progress Extremely limited craneage and a very tight schedule together mean that the formwork for Belfast’s 80 m Obel Tower has to meet some challenging requirements. Fernwave Ireland Ltd. has contracted for the CIP concreting work. Given the need for detailed formwork planning trimmed for maximum efficiency, the company has opted for a single-source formwork solution from Doka. Space is at a premium on the waterfront site; there is room for only one tower slewing crane and the only viable option is totally crane-independent formwork. Safety must be maintained at the highest possible level throughout every phase of the build, so the four topmost floors are enclosed by an Xclimb 60 protection shield. The central CIP core of the building is being climbed with 22 of the high-end, high-capability Doka SKE 50 automatic climbers. The potential of the automatic climbing formwork had to be exploited to the full right from the word "go", so an experienced site foreman from Doka familiarised the
people from Fernwave with the most efficient work routines, and supervised final assembly. The TLS Table Lifting System speeds up forming for the floor slabs The floor slabs have a 600 m² footprint and are being formed with 150 Dokaflex special tables. Crane capacity is extremely limited and ideally, floorslab forming should be crane-independent, so the tables are being lifted from level to level with two TLS table lifting systems. “It’s very much on account of the fact that we are using TLS units that we’ve been able to maintain this tight weekly cycle right through the floor-slabbing phase of the build. The TLS units keep our shifting times short and allow us to reap the benefit of continuous and speedy workflows”, emphasises Ronan McHugh.
The 80 m CIP core is being climbed with SKE 50 automatic climbing formwork and is rising in a weekly cycle. The shaft formwork is made up of panels plus strippingcorner I units, and these formwork boxes can be lifted from level to level without further disassembly. The TLS Table Lifting System takes the floor-slab formwork quickly from one floor to the next – no craneage is involved. The Xclimb 60 protection shield also climbs automatically, and provides full-enclosure protection for the four topmost floors as the tower rises.
Ronan McHugh, Fernwave’s Project Manager
The Professional We are using automatic climbers for the CIP core and the Table Lifting System TLS for craneindependent lifts of the Doka tables, so we can successfully deal with both those key challenges – limited craneage and the one-week cycle for the deck slabs."
In brief News, dates, media, awards
Outstanding export achievement
Go International Award: (from left:) Walter Koren, CEO of the Austrian Foreign Trade Promotion Organisation AWO; Doka Regional Manager Franz Hochholzer; Doka Executive Director Josef Kurzmann.
The Doka Group has been awarded the Austrian Economic Chamber’s “Go International Award” for outstanding achievements in successfully openingup new markets, and for its global presence. Doka Executive Director Josef Kurzmann accepted this prestigious award from Chamber President Christoph Leitl, in the presence of Austrian Chancellor Werner Faymann. The “Go International Award” is the highest distinction that can be conferred upon an Austrian exporter, and is an eloquent tribute to the success of Doka’s internationalisation strategy. High-performing formwork for wind power plants
Doka formwork for wind turbines.
Doka circular formwork for wind turbines scores for easy formwork set-up and removal, high adaptability to varying cross-sections, and maximum cost efficiency. In less than 9 hours, a 4.4 m high casting section can be formed, reinforced and poured, with no need for
form-ties. The following casting section can be executed the very next day. This daily cycle is assured by an ingenious workflow scheme that precisely defines the times for every single workstep, and optimises these worksteps in relation to one another. Floor end-shutter clamp
The Floor end-shutter clamp 60 cm is used for fast, safe forming of slab stop-ends and is designed so that all standard Doka handrail posts fit into it. It is a quick and efficient way of forming up to 60 cm high slab stop-ends, and of erecting various types of fall-arrest barrier at the slab-edges. It is fixed to the previously finished wall, either in a form-tie hole or directly in the concrete by means of a bridge edge beam anchor. An especially practical feature: When an end-shutter shoe is used, the Floor end-shutter clamp 60 cm can be mounted and dismounted either from above or from below.
Doka GmbH Josef Umdasch Platz 1 A 3300 Amstetten, Austria Tel. +43 (0)7472 605-0 Fax +43 (0)7472 64430 E-Mail: firstname.lastname@example.org Internet: www.doka.com
www.doka.com E-Mail: email@example.com
Doka branches worldwide
Impressum: "Doka Xpress" is a publication of the International Doka Group. Publisher: Doka GmbH, Josef Umdasch Platz 1, A 3300 Amstetten, Austria. Editor-in-chief: H. Bachinger. Layout design: COMO GmbH, Linz, Austria. Printers: Radinger, Scheibbs, Austria. In some cases the site photos show the situation during formwork assembly and are therefore not always complete from the point of view of safety.