(山东科技大学土木建筑学院，青岛 266510)
［摘要］在实际工程中，钢框架连接性能往往介于刚性节点和铰接节点之间，呈半刚性连接。采用拟静力试验方法进行了角钢连接的半刚性连接钢框架在低周往复荷载作用下抗震性能的试验，研究了带腹板双角钢、顶底角钢半刚性连接钢框架在周期循环荷载作用下的滞回性能、延性和破坏机理等，为钢结构抗震设计提供了一定的理论参考。试验结果表明该钢框架由于节点部位转动刚度小于刚性连接，使结构的抗侧刚度降低，侧向变形增加，但是同时也改善了梁柱的内力分布，提高了其在周期循环荷载作用下的滞回性能和耗能特性，比刚性连接钢框架具有更好的抗震性能。
［关键词］半刚性连接;滞回性能;延性;钢框架
Experimental research on seismic behavior of steel frame with top and seat anglewith double web angles semi-rigid connections
Wang Lai, Zhou Nannan, Wang Guobing(College of Civil Engineering and Architecture,Shandong University of Science and Technology, Qingdao 266510, China)
Abstract:The behavior of beam-to-column connections with angles are between fully rigid connection and ideal pin connection, and belong to semi-rigid connection. Pseudo-static force testing of a steel frame with semi-rigid connections is carried out in order to study the hysteresis properties, ductility and failure mechanism of the steel frame and some theoretic reference for seismic design of steel frame structure are given. Experimental results indicate that lateral stiffness of the steel frame with semi-rigid connection reduce and the lateral displacement of the steel frame increase because of the smaller rotational stiffness of semi-rigid connection compare with the rigid connection and inner force of the steel frame occur great variation. Steel frame with semi-rigid connection has stable hysteresis properties, good energy dissipation properties and better earthquake-resistant capability.
Keywords:semi-rigid connection; hysteresis properties; ductility; steel frame
作者简介：王来，博士，教授，博导，山东科技大学土建学院院长。从事钢结构与组合结构的教学与科研。Email:wlrdtjxy@sina.com
参考文献
［1］李国强, 沈祖炎. 钢框架弹塑性静动力反应的非线性分析模型［J］, 建筑结构学报, 1990, (2): 53-61.
［2］CHEN W F,LUI E M. Stability design of steel frames［J］. Department of Civil and Environmental Engineering Syrancuse University, Syrancuse, NY, 1991.
［3］KIM S E, CHEN W F. Practical advanced analysis for semi-rigid frame design［J］. Engineering Journal, 1996, (4): 129-141.
［4］李国强, 沈祖炎. 半刚性连接钢框架弹塑性地震反应分析［J］. 同济大学学报, 1992, 06: 123-128.
［5］JGJ101—96建筑抗震试验方法规程［S］. 北京: 中国建筑工业出版社, 1997.
［6］GB50205—2001钢结构工程施工质量验收规范［S］. 北京: 中国建筑工业出版社, 2001.
［7］周楠楠. 半刚性连接钢框架抗震性能的非线性有限元分析［D］. 青岛: 山东科技大学, 2007.