FRANK Stremaform formwork elements

Transcription

1 FRANK formwork elements technologies for the construction industry

2 Applications Working joints working joints enable large structural elements to be formed in sections. The sequence of these working joints is precisely scheduled depending on work at the construction site. Working joints may be fitted with water stops and / or with transverse force dowels for absorption of shear forces. 1.pour 2.pour Standard 1.pour 2.pour with water stop Splitboard slab separation joint elements Other types of working joints is suited for all types of working joints. Spacer Box-Outs Free standing formwork elements Kicker formwork Controlled crack joints controlled crack joints are used to produce intended cracks in working joints by deliberate weakening of the concrete cross section. The cross section is weakened by introducing a separation layer, which prevents the production of a concrete bond within one third of the concrete cross section. Standard with water stop Expansion joints Expansion joints or movement joints separate structural elements made of concrete from each other. EPS or mineral wool inserts are used to form the required joint between the structural elements. Watertight expansion joints are produced by incorporating a waterstop. elements are prefabricated in our factory, ready for installation on site. elements can be manufactured with a metal waterstop or a rubber water bar cage. The rubber water bar is installed in the cage at the construction site. Standard with water stop 2

3 Quick manufacture to your layout drawings On receipt of your layout drawings our design department will submit proposals for suitable joint designs. elements will be shaped to the required size in our factory so that they are ready for quick on-site installation in conformity with installation layouts supplied. Benefits of 2. pour The resistance of construction joints produced with to shear forces is identical to the values obtained with monolithic concrete. Spacer ensures a reliable concrete cover and formwork for the lower reinforcement layers without any gaps. Water stops are integrated in our factory. Reduced assembly time, formwork elements will be shaped to size in our factory. No formwork removal required. Anchors placed at the rear side of the formwork elements provide for increased freedom of movement in the second concrete pour. Short delivery times due to sufficient stock accompanied by quick cutting to size in our factory. No need for formwork removal, i.e. the reinforcement can be continued without interruption in the second concrete pour. Our transport department with factory owned trucks guarantees fast dispatch and reduces delivery times to the construction site to a minimum. Technologies for the construction industry 3

4 Different types is the formwork material for medium size slabs and walls. is fixed between the reinforcement layers. With its rough surface flat material satisfies the requirements of an indented joint to DIN A metal water stop or a rubber water bar cage can be installed in our factory if required. The formwork is supplied precisely to your layout specifications. Strong Strong with factory made stiffening made of lattice girders is suited for any dimensions of structural elements. If required, a metal water stop or a rubber water bar cage can also be installed in this case as well. Strong is supplied precisely to your layout specifications. Product Application: Slab widths Wall thicknesses Benefits: 500 mm 300 mm Elements precisely delivered to your specifications for medium size slabs Water bars can be integrated in our factory Strong > 500 mm > 300 mm Suited for very thick slabs due to vertical stiffening Elements are exactly shaped to the required size Water bars can be integrated in our factory 4

5 Working joints Working joints in reinforced concrete constructions Complete formwork element for reduced structural element heights Stremaweb with fibre concrete rail Other types of formwork material Standard Strong Other designs and types of assembly Spacer with fibre concrete rail Stremafix rear anchoring for underwater base slabs Technologies for the construction industry 5

6 Working joints Working joints with water stop With metal water stop Stremaflex with coated metal water stop With rubber water bar cage Other types of working joints Kicker formwork Free standing formwork elements Box-Outs Hopper formwork elements 6

7 Standard is used as lost formwork for working joints in floor slabs, ceilings and walls. Consisting of an expanded metal welded between steel bars, is placed between the reinforcement bars providing a rough surface to the finished concrete. This surface forms an indented structure with the second concrete pour so that the working joint transfers shear forces identical to those obtained with monolithic concrete (proven by tests carried out at the IBMB Brunswick). Wooden strip Fibre concrete rail Distance of the formwork The bond between concrete and provides a shear strength equivalent to that of monolithic concrete Manufactured to size in our factory, eliminates the need for traditional formwork erection and stripping, as well as subsequent scabbling of the joint resulting in faster pouring cycles Maximizing off-site prefabrication minimizes work on the construction site and guarantees fast progress of the project. Technologies for the construction industry 7

8 Strong Strong Strong is the combination between flat material with factory-made stiffening and it is eminently suited for use with thick structural elements. Factory made stiffening of the rear side with girders (e.g. with Stremafix) produces formwork elements for any size of working joints. Rear side stiffening Wooden strip Strong Fibre concrete rail or Spacer Distance of the formwork Strong Strong with indented joint Formwork elements for very large working joints can be produced. No additional formwork elements are required for the 2nd concrete pour due to rear anchoring via supports in the first concrete pour. Installed formwork elements remain in the concrete and reinforcement layout is unaffected. 8

9 Metal water stop formwork element with metal water stop All formwork elements can be supplied with a metal water stop. The jointing plate is available in standard widths of 250 mm or 300 mm or according to your specifications. To prevent void formation under the metal waterstop during concrete placement, the waterstop can be angled upwards by 15º on both sides. Wooden strip Metal water stop Fibre concrete rail or Spacer Distance of the formwork with metal water stop Transition base slab / wall formwork elements remain in the concrete. There is no need for formwork removal and associated tasks. The rough surface of the formwork element produces a bond with shear strengths equivalent to those of monolithic concrete. Technologies for the construction industry 9

10 Rubber water bar cage formwork element with integrated rubber water bar cage All elements can be supplied with an integrated rubber water bar cage. The cage is suited to take a rubber water bar 200, 250 or 320 mm wide or made to order. To prevent void formation under the rubber water bar during concrete placement, the cage can be angled upwards by 15º on both sides. Wooden strip Rubber water bar cage Rubber water bar Fibre concrete rail or Spacer Distance of the formwork with rubber water bar cage Transition base slab / wall 10

11 Kicker formwork Kicker formwork Kicker formwork can be used between base slab/wall or wall/ ceiling and can optionally be supplied with metal water stop (also coated) or alternatively with rubber water bar cage. Special designs and connections (e.g. round, T-piece) are also available. kicker formwork with metal water stop Stremaflex kicker formwork with coated metal water stop kicker formwork with rubber water bar cage Sheet metal height 250 or 300 mm (Standard: d = 2 mm, alternatively 1.5 mm), special designs can be supplied. Sheet metal height 150 mm d = 1.5 mm special designs can be supplied. Rubber water bar cage design matches planned joint sealant T-piece Angled element Linear Curved element Cross piece Optimum assembly at the construction site due to factory-made adapters! Technologies for the construction industry 11

12 Free standing formwork elements Free standing formwork elements free standing formwork elements for slabs are available in different heights. Free standing formwork elements are positioned on top of the lower reinforcement layer. They guarantee that the correct distance lower and upper reinforcement is maintained. Wooden strip free standing formwork element Spacer Distance of the formwork 2. pour Economically priced formwork elements with quick installation, offer all benefits of Easy installation of upper reinforcement by simple positioning. 12

13 Foundation Box-outs Foundation Box-outs formwork elements are used to form box-outs in foundations that are used as a recess for subsequent production of supports and columns. After completion of the foundation slab or individual foundations, steel or reinforced concrete columns can be positioned exactly according to the layout. The internal surface of the box-out produced by formwork elements is perfectly indented. Between the column and base slab there is a positive connection after pouring of the infill concrete Using a Pecafil external formwork in combination with internal formwork, individual column foundations can be easily and economically produced. Pecafil formwork elements can be reused for several identical foundations. They can be easily moved to a new position manually without the need for lifting equipment. Technologies for the construction industry 13

14 Box-Outs / Hopper formwork elements Box-Outs formwork elements for box-outs are used for wall or slab openings. These openings for e.g. large diameter pipe leadthroughs, are subsequently filled with concrete. formwork elements for recesses are available in various designs and sizes. Many options are available, such as elements with stiffening, concrete cover rails, chutes, with seals and wooden covers used as drop protection. Box-Outs Hopper formwork elements Hopper formwork elements Hopper formwork elements are used to produce conical concrete structures (e.g. for wastewater treatment plants or silos) where they form the upper formwork. The surface is subsequently covered with a screed to the required concrete cover. Fixing at the bottom via anchors / lift protectors prevents the risk of flotation. hopper formwork elements can also be supplied complete with factory-made bracing. 14

15 Spacer Spacer: The combined spacer Spacers formwork elements are used to maintain the concrete cover and the gap beneath the continuous reinforcement and the main formwork elements. Spacers prevent seepage of the concrete thus avoiding timeconsuming cleaning of the formwork. Different pitches and spacing to suit all rebar diameters are incorporated during production in our factory. Wooden strip Spacer Distance the formwo Fibre reinforced concrete rails are available in square or triangular A large range of concrete covers are available. Suitable for slabs with very heavy reinforcement. Technologies for the construction industry 15

16 Indented joint formwork element with indented joint All formwork elements can be supplied with one or more indented joints. The standard indented joint satisfies all requirements to DIN The geometry of the indented joint can be designed to suit your specific requirements. Wooden strip Fibre concrete rail or Spacer Distance of the formwork n x 3 x 2 x 1 x with indented joint Strong with indented joint formwork elements can be designed to meet your individual requirements. Strong with factory-made stiffening can also be supplied with indented joints. All elements can be supplied with an integrated metal water stop or rubber waterbar cage. 16

17 Fixing anchor Stremafix fixing anchor The Stremafix fixing anchor for formwork elements in working joints ensures tensile and compressive strength of the formwork during the installation phase and protects it against the pressure of the concrete. The fixing anchor consists of a loop hook with safety bolt for hanging into the lower reinforcement, a tension rebar and a spring clamp. Stremafix fixing anchors are recommended for slab widths > 1.0 metre Quick assembly due to high degree of prefabrication. No welding is required on site for fixing the formwork element in place. The snap-on clip is reusable. Technologies for the construction industry 17

18 Max Frank Limited Technologies for the construction industry Distributed in New Zealand by Phone W W