The simplified design method on bearing capacity of Cold-formed Thin-wall Steel Composite Floor

摘要

In the process of use, cold-formed thin-walled steel composite floor should undertake the upper floor vertical load, transfer wind load and seismic force to the shear wall, so that the composite floor must have good bearing capacity. However, using theoretical derivation to calculate the bearing capacity of composite floor is rather difficult. Based on the finite element analysis, the composite floor whole model can be simplified to a combination of T-section model and inverted L-section model. On the basis of verifying the correctness of simplified models, this paper puts forward a simplified design method on bearing capacity of cold-formed thin-wall steel composite floor, called whole section effective estimation method, which can be very convenient for the design of composite floor.