Transfloor is a revolutionary precast concrete flooring system which uses a combination of precast steel reinforced concrete panels and a poured in-situ topping as a means of constructing a suspended concrete slab.
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Size
A Transfloor™ panel is a factory made precast concrete slab of variable width up to a maximum of 2.5 metres, and variable length, usually limited to about 12 metres for transport and handling purposes.
Thickness
The panel thickness can be varied and will depend on reinforcement size and concrete cover. For many applications a nominal thickness of 55mm is satisfactory.
Reinforcement
The bottom reinforcement embedded in the panel can consist of a layer of fabric, the bottom chords of the trusses and additional reinforcing bars as required by the designer.
Handling
The Transfloor™ trusses provide strength and stiffness for handling and transport, allow panels to support construction loads with a minimum of temporary propping, contribute to the bottom steel and to the top steel,and can also serve as continuous bar chairs to support the top reinforcement.
Weight Saving
Polystyrene void formers, added at the precast factory, allow for construction of voided slabs with a significant reduction in self weight (typically 30%).
Flexibility
In contrast with most other prefabricated systems, Transfloor™ imposes few restrictions on designers because there are no standard panel sizes. The length, width, thickness, plan geometry and reinforcement steel can be varied to suit design requirements and allow considerable flexibility for both the Architect and the Engineer.
Faster Construction
Up to 150m2 per hour can be placed by crane, reducing building time significantly. Transfloor™ panels provide both the working platform and part of the completed floor while eliminating the need for formwork.
Reduced Propping
Propping requirements are reduced when compared with traditional formwork meaning less cluttering of the floor below, and earlier access by following trades.
Clean & Safe
Fewer trades are required resulting in a less cluttered, cleaner and safer building site. An immediate work platform is provided.
Lighter Structure
Use of polystyrene void formers reduces the self weight of the slab and provides cost savings in foundations, columns and beams. The void formers also reduce the volume of in-situ concrete.
Soffit Finish
A class 2 off-form grey finish is easily achieved, suitable for painting with minimum preparation (refer Figure 3).
Balcony Upstands
Balcony Upstands can be provided as an integral part of the Transfloor™ panel, eliminating costly edge formwork and scaffolds. Precast Balcony Upstands also offer early installation of temporary