外伸式端板连接钢-混凝土组合节点抗震受剪承载力  

Research on seismic shear capacity of extended endplate connection type steel and concrete composite joints

作　　者：张诚紫[1] 李升才[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《地震工程与工程振动》2013年第1期54-60,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50948036);建设部研究开发项目(06-k3-17);厦门市科技计划项目(3502Z20073035);福建省科技计划重点项目(2012H0028)

摘　　要：为了进一步研究外伸式端板连接型钢-混凝土组合节点的受力特点、破坏形态以及节点的抗震受剪性能,进行了7个外伸式端板连接节点的低周反复荷载作用的试验,对其破坏形态进行了分析,提出了可供实际工程参考使用的节点核心区抗震受剪承载力计算公式;对比分析了不同的螺栓数量、排列方式和螺栓直径的节点抗震受剪承载力值及耗能能力,给出了相同的螺栓排列方式,指出螺栓直径大的其抗震承载力高,并指出三行三列螺栓排列方式的节点是外伸式端板连接钢-混凝土组合节点最为合理的节点形式。In order to further study the mechanical property, damage pattern and seismic shear capacity of the extended endplate connection type steel and concrete composite joints, a low cyclic reversed load was put on seven extended endplate connection joints and the failure mode was analyzed. As a result of it, the seismic shear capacity formula of the core zone was presented, which provided a reference for practical engineering. Capability of seismicshear and energy consumption of joint bolts with different amounts, arrangements, and diameters was discussed and compared. A conclusion was drawn that bigger bolt diameter meant higher seismic shear capability in the case thatthe arrangement of bolts were the same. Meanwhile, it also showed the most reasonable joint pattern of the extended endplate connection type steel and concrete composite joints was that the arrangement of bolts was three lines andthree rows.

关 键 词：外伸式端板连接钢梁 焊接环式箍筋柱 节点 抗震受剪承载力 低周反复荷载试验 

分 类 号：TU398[建筑科学—结构工程] TU317.1