叠合墙板-楼板节点有限元性能对比分析

Finite Element Analysis and Test Comparison of Superimposed Wallplate-floor Joint

通过有限元软件ABAQUS对叠合墙板-楼板节点进行数值分析,依照试验实际值以及合适的混凝土塑性损伤模型对节点进行建模,并将模拟得出的破坏形态、滞回曲线、骨架曲线和刚度退化曲线与试验结果进行了对比。对比分析结果表明:有限元分析结果能较为准确的反映出节点的受力性能,模拟得出的滞回曲线、骨架曲线变化趋势基本反映试验情况,两者力学性能指标接近。

The finite element software ABAQUS was used to numerically analyze the composite wallplate-floor joints,and the joints were modeled according to the actual test values and the appropriate concrete plastic damage model.The failure modes,hysteresis curves,skeleton curves and stiffness degradation curves obtained from the simulation were compared with the test results.The comparative analysis results show that the finite element analysis results can accurately reflect the mechanical properties of the joints,and the variation trends of the hysteresis curve and skeleton curve obtained by simulation basically reflect the test conditions,and the mechanical properties of the two are close to each other.