The formed steel plate that forms a corrugated section along the width of the plate by rolling and cold bending the coated plate or plated plate is called a profiled steel plate.
The common thickness of roof and wall is 0.4～1.6mm; when used in load-bearing floor or silo, the thickness is 2～3mm or more. The wave height generally ranges from 10 to 200 mm. When it is not reinforced, its height-to-thickness ratio should be controlled within 200. When using a long roof panel, the slope can be 2 to 5%, and the deflection does not exceed l/300 (l is the calculated span length). Some of the waveforms used in construction are shown in Figure [Commonly used waveforms of profiled steel plates]
Because the original plate is very thin, the quality of the anti-corrosion coating directly affects the service life. In order to meet the processing and anti-rust requirements, the coated steel plate needs to be inspected according to relevant regulations. Under normal circumstances, the thin steel plate can also be coated with anti-rust paint after pressing according to the application requirements, or the original stainless steel thin plate can be used.
When profiled steel plates are used as housing panels and wall panels in industrial plants, the amount of steel used per square meter is about 5 to 11 kilograms when there is generally no thermal insulation requirements. When thermal insulation is required, mineral wool board, glass wool, foam plastic, etc. can be used as thermal insulation materials. The profiled steel plate and concrete are combined to form a composite floor slab, which can eliminate the wooden template and can be used as a load-bearing structure. At the same time, in order to strengthen the bonding force between the profiled steel plate and the concrete, it is advisable to pre-weld studs or suppress bidirectional stiffeners on the steel plate.
