局部实心对空心板柱节点冲切性能影响

Effects of Local Solid on Punching Shear Performance of Hollow Slab Column Joints

为了研究局部实心对现浇空心板柱结构节点冲切性能的影响,对3个空心板柱中柱节点进行了抗冲切试验的数值模拟,得到了不同条件下空心板柱节点的受冲切承载力。采用数据对比的方法,研究了局部实心对空心板受冲切承载力的影响。数值分析结果表明:在空心板柱结构节点附近设置局部实心的方法能够很好地提高节点的受冲切承载力。

In order to study the influence of local solid on the punching shear performance of the cast-in-place hol-low slab column structure, the punching shear bearing capacity of the hollow slab column joints under different condi-tions was obtained by the numerical simulation of the anti-punching shear test of 3 hollow slab column joints. By us-ing the method of data comparison, the effects of local solid on the punching shearbearing capacity of the hollow slab were studied. The numerical results showed that the method of setting the local solid in the vicinity of the hollow slab column structure joints can improve the punching shear bearing capacity of the joint greatly.