空间角柱半刚性连接节点抗震性能研究  

RESEARCH ON SEISMIC PERFORMANCE OF SEMI-RIGID CONNECTIONS OF SPATIAL CORNER COLUMN

作　　者：李凤霞[1] 王新武[1] LI Fengxia;WANG Xinwu(School of Civil Engineering,Luoyang Institute of Science and Technology,Luoyang 471023,China)

机构地区：[1]洛阳理工学院土木工程学院,河南洛阳471023

出　　处：《钢结构》2018年第12期98-102,76,共6页Steel Construction

摘　　要：对1个T型钢连接的空间角柱节点进行拟静力试验研究,在此基础上采用有限元软件ABAQUS对4个由不同厚度T型钢连接的相同类型的节点进行数值模拟分析,研究节点试验结果与有限元计算结果的吻合程度,同时对比分析T型钢厚度变化对节点的承载能力、耗能能力、刚度退化情况以及延性性能等力学性能的影响。研究表明:试验结果与有限元模拟结果吻合较好,均表现出良好的抗震耗能能力;节点强轴方向的承载性能大于弱轴方向;增加T型钢的厚度可以提高节点的极限承载能力、耗能能力及延性性能,但对节点的刚度退化影响不大。The quasi-static test of one T-stub connected space corner column joint was carried out. Based on this, the finite element simulation software ABAQUS was used to carry out finite element numerical simulation analysis of four joints of the same type connected by different thickness T-stub. The degree of agreement between the test and the finite element was compared. The influence of the thickness variation of the T-stub on the bearing capacity, energy dissipation, stiffness degradation and ductility of the joint was also analyzed. The results showed that the experimental results were in good agreement with the finite element simulation results, they all showed good seismic energy dissipation capacity. The mechanical properties of the joint in the major axis direction were greater than that in the minor axis;increasing the thickness of the T-stub could increase the ultimate bearing capacity of the joint, energy consumption and ductility, but there was little impact on the stiffness degradation of the node.

关 键 词：空间角柱 T型钢 耗能能力 延性 

分 类 号：TU352.11[建筑科学—结构工程]