T型钢连接的钢框架梁柱节点在低周往复荷载作用下的抗震性能分析  

ANALYSIS OF THE ANTI-SEISMIC CAPACITY OF T-STUB BEAM-COLUMN JOINT OF THE STEEL FRAME UNDER CYCLIC LOAD

作　　者：曹现雷[1] 郝际平[1] 申诚君[2] 

机构地区：[1]西安建筑科技大学土木学院,西安710055 [2]山东建筑大学土木学院,济南250101

出　　处：《钢结构》2008年第7期30-33,38,共5页Steel Construction

基　　金：建设部科技攻关项目(05-k5-16)

摘　　要：采用ANSYS有限元软件对T型钢梁柱节点进行三维实体建模,并在此基础上利用非线性有限元方法研究不同节点在低周往复荷载作用下的滞回性能。结果表明:T型钢连接节点的滞回曲线稳定饱满,具有较为理想的抗震性能。T型钢翼缘厚度、是否设置加劲肋和螺栓竖向排列方式对节点抗震性能影响较大;柱腹板厚度、梁翼缘和腹板厚度对抗震性能影响较小,T型钢梁柱节点属于半刚性节点。The hysteretic behavior of T-stub beam-column joint under cyclic load is studied by using the method of three-dimensional modeling of solid structures. The results show that the shapes of P-△ curve are stable and full. T-joint has perfect seismic performance; the thickness of flange of the T-stub, stiffening rib and the vertical array distribution of bolts greatly influence the seismic performance of the joints; the thickness of web of the column, the thickness of flange and web of beam have less influence,T-stub beam-column Joint is semi-rigid joint.

关 键 词：T型钢连接 梁柱节点 往复荷载 抗震性能 非线性有限元分析 

分 类 号：TU391[建筑科学—结构工程]