摘要
介绍了1995年日本阪神地震引起的钢框架梁柱节点特别是混合连接节点的破坏情况,分析指出坡口焊缝处的衬板和引弧板造成人工缝,梁翼缘坡口焊缝出现超应力等是造成节点破坏的主要原因.讨论总结了改进节点设计的途径和改进措施,如:改变节点的构造形式,去除梁翼缘焊缝衬板缺口效应,改进扇形切角构造,加强梁腹板与柱的连接等.
Abstract:This paper presents the failure situation of beam-column joint in steel frame structures caused by Hansin earthquake of Japan in 1995.Principal factors resulting in the failure were cracks caused by scale board and end tab in groove weld as well as overstress of groove weld in the end of beam flange.Improving measures should include:change the nonstructural form of joint,remove the notch effect on groove weld in beam flange,modify the configuration of sphere corner,and strengthen the connection between web and column.
出处
《沈阳工业大学学报》
EI
CAS
2005年第1期107-110,共4页
Journal of Shenyang University of Technology
关键词
阪神地震
钢框架
节点破坏
混合连接
改进措施
Hansin earthquake
structural steel framework
failure of joints
mixed-connection
improvement measure
