钢-混凝土组合梁剪力连接件模拟方法研究

Research on Simulation Method of Shear Connection of Steel-concrete Composite Beam

文中分析了钢-混组合梁不同构件的模拟方法,采用有限元软件ABAQUS建立钢-混凝土组合梁有限元模型,运用数值模拟对不同类型剪力连接件进行分析,并与试验结果进行对比验证。研究结果表明,组合梁的剪力连接件单元的弹簧刚度的选取应分为三个方向,在剪力连接件较多的情况下,采用弹簧单元模拟的栓钉连接件后,其结果与文献中推出试验实测值、实体单元模拟值的吻合程度较高。

In this paper,the simulation methods of different components of steel-concrete composite beams are analyzed,the finite element model of steel-concrete composite beams is established by using the finite element software ABAQUS,and different types of shear joints are analyzed by numerical simulation,and compared with the test results The results show that the selection of spring stiffness of the shear joint element of the composite beam should be divided into three directions.When there are more shear joints,the stud joint simulated by the spring element is in good agreement with the measured values in the literature and the simulated values of the solid element.