摘要
通过对不同连接方式的梁柱节点构造进行分析,发现采用新型节点形式(下栓接贯通隔板-上焊接外环板)更有利于发挥悬链线机制,提高构件抗连续倒塌能力。运用ABAQUS软件,对该节点形式下的不同跨高比、不同跨度比以及局部削弱截面下的失效模式、承载力-位移曲线、抗力机制进行分析,为提升梁柱节点抗连续倒塌能力提供了新的节点形式,为抗连续倒塌性能的设计奠定了基础。
Through the analysis of various beam-column connected joints,this study reveals that the new connection method,featuring a lower bolted-through diaphragm and an upper welded external plate,enhances the catenary mechanism and improves the resistance to continuous collapse.The analysis employs ABAQUS software to conduct a comprehensive examination of failure modes,load-displacement curves,and resistance mechanisms under varying span-to-height ratios,span ratios and locally weakened sections of this joint.This study introduces a novel joint design aimed at enhancing collapse behavior and establishing a foundation for the design of structures with improved resistance to continuous collapse.
作者
戎贤
许秀晨
杜颜胜
RONG Xian;XU Xiuchen;DU Yansheng(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,P.R.China;School of Civil Engineering,Tianjin University,Tianjin 300072,P.R.China)
出处
《重庆大学学报》
CAS
CSCD
北大核心
2023年第10期71-85,共15页
Journal of Chongqing University
基金
国家自然科学基金资助项目(51808182)
河北省自然科学基金资助项目(E2017202278)。
关键词
梁柱节点构造
悬链线机制
连续性倒塌
跨高比
beam-column connected joint
catenary mechanism
progressive collapse
span-to-height ratio
