Numerical modelling of short and long term behaviour of headed stud shear connector in composite steel-concrete beams

Composite steel-concrete construction has achieved a high market share around the world. This is mainly due to a reduction in depth, saving in steel weight and rapid construction program. Composite action enhances structural efficiency by combining the structural elements to create a single composite member. More recently, trapezoidal profiled slabs are becoming increasingly more popular for high-rise buildings when compared with solid slabs because they can achieve large spans with little or no propping and they require less concrete and plywood formwork. However, the profiles used to achieve these savings can have a detrimental effect on the shear connector behaviour. This paper consists of modelling long term behaviour for composite steel-concrete beams using commercial software known as ABAQUS