Analysis and behavior of two-way composite slabs

Composite slab construction is structurally efficient because it exploits the tensile resistance of the steel sheet and the compressive <resistance of concrete. Researches showed that composite construction slabs lead to a noticeable reduction in the structure weight, construction b cost, and the resulting deformations. Currently, the design of composite slabs is based upon a one-way < flexural analysis with the span in the direction of the ribs. There were few researches that treated experimentally the two-way action for the b composite slabs. In this thesis, analysis and modeling of the behavior of two-way < composite slabs consisting of a profiled steel sheeting and concrete are presented. The FEM program COSMOS/M2.6 is used to model both the < one-way and the two-way composite slabs. Non-linear behavior of materials, interface properties and the effect of reduction factor of embossments flattening are considered. The proposed finite element model is verified using some published experimental full scale tests for one and two composite slabs. The parameters which their effect are considered in this study are load arrangement, slab aspect ratio, slab slenderness ratio and steel straps attached to the lower flange of steel deck with and without studs at slab edges.