端板厚度对PEC柱与型钢梁节点抗震性能的影响
赵根田，朱宇，狄昊
（内蒙古科技大学建筑与土木工程学院，内蒙古包头 014010）
关键词：PEC柱；端板连接；滞回性能
中图分类号：TU398.9 文献标识码：A
摘要：为了解端板厚度对焊接H型PEC柱型钢梁端板连接节点的抗震性能影响，对3个PEC柱型钢梁端板连接节点试件在低周反复水平荷载作用下的滞回性能进行了试验研究。研究了试件的破坏形态，分析得到了焊接H型PEC柱型钢梁端板连接节点的弯矩-转角滞回曲线、骨架曲线、耗能能力、延性、刚度以及破坏模式等。试验结果表明：随着端板厚度的增加，试件的极限转角、耗能能力和延性随之增大。节点的破坏模式有两种，分别为梁端出现塑性铰和端板断裂。
Effectof the end plate thickness on seismic behavior of PEC column-steel beam joint
Zhao Gentian, Di Hao
(School of Architecture and CivilEngineering, Inner Mongolia University of Science &Technology, Baotou 014010,China)
Keywords: partially encasedconcrete column, end plate connection, hysteresis performance
Abstract: Three model specimensunder low frequency cyclic pseudo static loading were tested for learning theeffect of the end plate thickness on seismic behavior of end plate connectionsin partially encased concrete composite column-steel beam joint. The hysteresiscurves, skeleton curves, energy dissipation capacity, ductility, stiffness andfailure mode were obtained by observing the failure process of each specimenand analyzing testing data. The test results show that the turn ductility and energy dissipationcapacityof nodes can be increased by increasing the thickness of end plate. There are two failuremodes, which are the plastic hinge of beam and the fracture of end plate.
基金项目：国家自然科学基金项目（51268042）
作者简介： 赵根田（1962-），山西忻州人，内蒙古科技大学教授，博士。