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Components and Installation
Composite Sheet Slab Components
Composite slabs are made up of:
- Corrugated sheet steel profile (support sheet), the indentations of which allow it to provide support to the concrete.
- Anti-fracture mesh, which is positioned in a similar manner to when employed for solid slabs and the objective of which is the prevention of fractures provoked by retraction and temperature.
- Negative Framework, which is installed in the upper section of the slab and centred in the indentations. Its purpose it to absorb the tensile stresses generated in the adjacent slabs’ supports.
- Fire-resistance framework, which installed in the same way as the negative framework but in the lower side of the indentations. This is a positive framework that is installed to ensure that the slab’s fire-resistance complies with the project’s specifications.
- Concrete, which is poured directly onto the composite slab.
Installation of Composite Sheet Slab
The packages of sheets must be placed on the structure’s main beams. Once there, each sheet is installed in accordance with the layout plan and making sure that such factors as overlaps, alignment, gaps, etc., are correctly observed. The most common option for installing INCO 70.4 Colaborante profiles is to attach them directly to the beam ends. The slab is then supported on top.
Another option, when it is necessary to reduce the edge of the composite slab-beam, is to place support angles on the beam struts. It is also necessary to ensure that the negative framework and the anti-fracture mesh have enough space in which to cover the beam next to the compression layer, thus guaranteeing the frameworks' covering.
On-site installation Video
Composite Slab Technical Document
