外伸式端板连接型钢-混凝土组合节点恢复力模型研究  

Study on restoring force model of steel-concrete composite joints with extended end-plate connections

作　　者：陈伟伟[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：《世界地震工程》2014年第1期105-113,共9页World Earthquake Engineering

基　　金：福建省科技计划重点项目(2012H0028);国家自然科学基金资助项目(50948036);建筑部研究开发项目

摘　　要：通过对7个外伸式端板连接蜂窝钢梁-复合焊接环式箍筋混凝土柱节点组合试件进行低周反复荷载作用下的拟静力试验,分析了不同的螺栓数量、直径以及不同排列方式下节点的抗震性能,建立了该种组合节点的恢复力模型。试验结果表明:螺栓数目多、直径大的试件,抗震性能好;8个螺栓排成四行两列的节点为最合理的节点形式;建议的恢复力模型骨架曲线与试验骨架曲线符合较好,可供外伸式端板连接型钢梁-混凝土柱组合节点组成框架结构的弹塑性地震反应分析参考。The seismic performance of the joints with different bolt number, diameter and different arrangement was analyzed and the restoring force model of these combined joints was established through the pseudo-static test of 7 specimens under low cyclic loadings, all of which are welded compound-ring-hoop concrete column and cellular steel beam composite joints. The test results show that：the specimens with more bolt numbers and larger bolt diam- eters have better seismic performance;the joints in which 8 bolts are arranged in four rows and two columns are the most reasonable joints form ; the skeleton curve of the recommended restoring force model is in good agreement with the test one and this gives a reference to elastic-plastic seismic response analysis of frame structure composed by steel beam and concrete column composite joints with extended end-plate connections.

关 键 词：外伸式端板 组合节点 框架结构 恢复力模型 拟静力试验 

分 类 号：TU398[建筑科学—结构工程]