考虑组合效应的钢框架梁柱节点恢复力模型研究  

Study on restoring force models of steel beam-column connections with composite action

作　　者：石永久[1] 苏迪[1] 王元清[1] 

机构地区：[1]清华大学土木工程系清华大学结构工程与振动教育部重点实验室,北京100084

出　　处：《世界地震工程》2008年第2期15-20,共6页World Earthquake Engineering

基　　金：国家自然科学基金项目(50578083)

摘　　要：为了研究考虑节点区组合效应后高层钢框架节点的抗震性能,根据钢框架节点在低周反复荷载作用下足尺模型试验研究成果,总结了各试验节点试件的滞回性能,包括节点的延性、耗能能力等指标。在试验滞回曲线的基础上,考虑试件强度、刚度退化等影响,建立了考虑组合效应的梁柱节点的恢复力模型,所建立的模型可以用于结构弹塑性时程反应分析和钢框架节点抗震设计。In order to investigate the seismic performance of beam-column connections with composite action used in tall steel buildings,the experiments were conducted on full-scale specimens of beam-column connections subjected to low-cyclic loading.Based on the test results and analysis,the hysteretic characteristics of composite beam-column connections were obtained,including ductility,energy-dissipation capacity and so on.Then bilinear restoring force models of beam-column connections with composite effect are est...

关 键 词：钢框架节点 组合效应 滞回性能 恢复力模型 

分 类 号：TU391[建筑科学—结构工程]