Finite element modelling of shear connection behaviour in a push test using profiled sheeting

摘要

A numerical investigation to study the behaviour of headed shear stud in composite beams withrnprofiled metal decking is reported in this paper. The steel deck was oriented perpendicular to the beam. Thernanalysis of the push testwas carried out usingABAQAS/Explicit with slowload application to ensure quasi-staticrnsolution. Both material and geometric nonlinearities were taken into account. Elastic-plastic material modelsrnwere used for all members except concrete slab for which Concrete Damaged Plasticity model was used. Thernpost-failure behaviour of the push test was accurately predicted, which is crucial for realistic determination ofrnshear capacity, slip, and failure mode. After validation against experiments, the model was used to carry outrnparametric study to investigate the effect of concrete strength, slab depth and profiled sheeting rib width. It isrnconcluded that this model is extremely useful in understanding the behaviour of headed shear stud in compositernbeams with profiled sheeting.