钢-混组合梁部分结合构造参数分析及优化OA

Two partial shear connection methods,namely by using rubber-sleeved stud connector and by increasing stud distance,can both reduce bonding degree between steel and concrete in composite girder.In response to the current lack of research comparing the effectiveness of the two partial shear connection methods,and the lack of optimization of parameter indicators used in the implementation process of the two methods,this article compares the effectiveness of using rubber-sleeved stud connector and increasing the stud distance by loading and analyzing four girder specimens.Nonlinear finite element models were established using ABAQUS,revealing the bending resistance of composite girder with partial shear connection.The influence of different parameters on the mechanical performance of composite girder with partial shear connection was analyzed,while key parameters in the design process of partial shear connection were optimized.