Analysis of Mechanical Properties of Long-span Reinforced Concrete Composite Slabs under Different Splicing Methods

Based on the long-span slab in an assembled building project, ABAQUS is used to simulate mechanical properties and failure modes of under condition whole span cast-in-place two-way rebar truss composite (hereinafter referred as slab) with different splicing methods, which slabs adopt fixed support loads are uniformly distributed load. The finite element simulation results show that integrity not from those parallel slab, but they obviously better than cross slab; In same span, seam middle cracks first due stress concentration, increase load crack will pass through develop both sides, finally all concrete at bottom fail. According results, following suggestions given: if adopted for should be adopted, arranged direction less stress, directions.