Steel Bar Truss Decking Floor Support Sheet

Steel bar truss decking floor support sheet is a type of unsupported profiled composite floor decking. It features a steel truss made of steel bars functioning as upper chords, lower chords, and web members, all connected through resistance spot welding. The steel truss is integrated with a bottom plate to form a composite load-bearing element known as a steel truss floor bearing plate.

This decking is processed in a backend facility and requires on-site construction where the profiled plates are bolted to the steel beams before installing the steel trusses. After acceptance, concrete is poured to complete the structure.

1. Perform steel bar cutting and positioning in the plant to conserve materials and reduce waste.

2. At the construction site, only distribution and connecting bars need to be tied, reducing the tying effort by 60% to 70% and increasing construction speed.

3. The steel bar truss decking floor support sheet serves as both the support frame and formwork for the floor slab, saving labor in erecting these components, reducing labor costs, and accelerating construction progress.

4. It enhances the stress performance of concrete floor slabs, minimizes crack width, and improves overall slab performance and durability.

5. The lower surface is smooth and aesthetically pleasing, eliminating the need for molded plate ribs or corrugations. This design increases the rate of expansion utilization, reduces the amount of steel used, and saves costs.

6. The steel bar truss decking floor support sheet is concrete-wrapped and fire-resistant. Tests show that with a floor slab thickness of 100mm (corresponding to a steel truss height of 70mm), the fire resistance time limit is 1.68 hours, and the galvanized steel plate does not require additional fire protection.

The steel bar truss decking floor support sheet is commonly used to provide stable support and load-bearing capacity in prefabricated formwork applications that require cast-in-place concrete. This includes uses in basement post-cast belts, foundations, retaining walls, and floor cast-in-place roofing and walls.