新型方钢管混凝土柱-钢梁节点抗震性能试验研究  

Experimental study on seismic behavior of new type connection for concrete-filled square steel tube

作　　者：王先铁[1] 郝际平[1] 孙彤 潘阳[1] 任青青[1] 

机构地区：[1]西安建筑科技大学西建大-莱钢钢结构研发中心,陕西西安710055 [2]山东莱钢建设有限公司,山东青岛266071

出　　处：《地震工程与工程振动》2007年第4期67-73,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50378078);陕西省自然科学基金(2007E202)

摘　　要：通过柱端加载的低周反复荷载试验对8个内隔板三边焊接,而在未焊一边柱壁板上布置圆柱头栓钉的方钢管混凝土柱-H形钢梁节点进行了试验研究,研究了不同轴压比情况下节点的破坏模式、延性、耗能性能等。试验结果表明,破坏之前节点具有良好的滞回性能、延性及耗能能力,满足现行抗震规范的要求。该节点可以用于方钢管混凝土柱两侧弯矩相差较大时,弯矩较小一侧节点。提出了相关的设计建议。A total of eight interior diaphragm connections were tested under low-cyclic reversed loading at the end of column for concrete filled square steel tubular column and steel beam. The interior diaphragms had only three edges welded to the tubes, and the headed studs were welded to the face of the column, which was not welded to the interior diaphragm The failure modes, ductility and energy dissipation capacity of the connection with different axial compressive force ratios and length of headed stud were studied. The experimental results show that all the specimens have well hysteretic behavior, ductility and energy dissipation capacity before failure. This kind of joint meets the requirements of the current code for seismic design of buildings. And it can be used for the beam-to-column connection with minor moment. Additional seismic design recommendations are presented.

关 键 词：方钢管混凝土柱 内隔板式节点 栓钉 试验研究 抗震性能 

分 类 号：P315.97[天文地球—地震学]