边钢框架节点抗震性能试验  

Experiment on Seismic Performance of Steel Frame Nodes

作　　者：李许峰[1] 王新武[2] 

机构地区：[1]河南科技大学土木工程学院,河南洛阳471023 [2]洛阳理工学院土木工程学院,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2015年第6期55-60,8,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51278238);河南省科技攻关基金项目(122102210550);河南省科技创新杰出青年基金项目(134100510010)

摘　　要：采用符合实际受力特点的柱端加载,对剖分T型钢连接的边框架节点进行低周反复试验。试验结果表明:加载过程中T型件翼缘与腹板交界处的应力最大,最先形成塑性铰;柱翼缘和梁翼缘在加载过程中均处于弹性阶段,而节点域的剪切应变达到了屈服应变。通过测量发现:梁柱相对转角达到了美国规范的要求,同时,由滞回曲线和骨架曲线可知该节点具有较好的延性和耗能特性。The experiments on the frame joint connected by T-stub were studied. The joint was subjected to low cycle loading at the end of the column. The results show that the junction of T-flanges and webs has maximum strain in the loading process,and the plastic hinges are formed. The flanges of column and beam are always in elastic stage during the process of loading,while the shear strain of joint region reaches the yield strain. It is discovered that the relative angles of beam and column reach the national standard of United States of America by measuring. The hysteretic and skeleton curves show that the frame has great ductility and energy dissipation properties.

关 键 词：柱端加载 框架节点 低周反复荷载 滞回性能 耗能特性 

分 类 号：TU392[建筑科学—结构工程]