新型钢框架梁柱节点抗震性能试验研究

英文篇名：Anti-seismic Performance Testing Study on New Type Beam-to-column Connection in Steel Frames
中文刊名：建筑钢结构进展
英文刊名：Progress in Steal Building Structures
作者：王秀丽 ; 殷占忠 ; 李庆福 ; 李大军
英文作者：WANG Xiu-li1 ; YIN Zhan-zhong1 ; LI Qing-fu1 ; LI Da-jun2(1.School of Civil Engineering ; Lanzhou University of Technology ; Lanzhou 730050 ; China ; 2.Gansu Longying Steel Construction Company ; Lanzhou 730000 ; China)
中文关键词：钢框架 ; 梁柱节点 ; 腹板削弱 ; 抗震性能
英文关键词：steel frame ; beam-to-column connection ; weakened web ; anti-seismic performance
出版日期：2005-08-01
机构：兰州理工大学土木工程学院,兰州理工大学土木工程学院,兰州理工大学土木工程学院,甘肃龙盈钢结构研发中心甘肃兰州730050 ,甘肃兰州730050 ,甘肃兰州730050 ,甘肃兰州730000
年：2005
期：04
出版单位：建筑钢结构进展

摘要

根据钢框架强柱弱梁的抗震设计原则,按照有效控制梁上塑性铰位置的思路,采用在梁腹板进行开孔削弱的节点形式促成塑性铰的形成,进行了反复荷载历程下的五组试件破坏试验,测试了构件相关的力学性能,探讨了梁柱节点的滞回性能及其极限承载力。结果表明,采用腹板开孔的构造形式,可以控制节点处的塑性铰形成位置,降低了连接焊缝发生脆性破坏的可能性,较大程度地改善了节点抗震性能。
According to anti-seismic design principle of strong column and weak beam, the position of plastic hinge of beam in steel frames should be controlled effectively.A new type connection that is weakened by making a hole in the web of the beam has been presented in this paper. Five groups of tests under cyclic loading are carried out. The sectional stress distribution, the hysteretic behavior and ultimate bearing capacity of the tested specimens are discussed. It is found that the hole made in the web of the beam can alleviate the tri-axial stress state of the connection and reduce the possibility of fragility damage of weld, which improve the anti-seismic performance of the connection.

引文

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