带梁式转换层框支剪力墙结构抗连续倒塌分析  

Progressive Collapse Analysis of Frame Supported Shear Wall Structure with Beam Transfer Story

作　　者：师立德[1] 侯建帅 张斌 高金瑞 刘娜娜 车拿单 张松 薛毓鑫 SHI Li-de;HOU Jian-shuai;ZHANG Bin;GAO Jin-rui;LIU Na-na;CHE Na-dan;ZHANG Song;XUE Yu-xin(School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, China)

机构地区：[1]西安科技大学建筑与土木工程学院,西安710054

出　　处：《科学技术与工程》2021年第14期5898-5906,共9页Science Technology and Engineering

基　　金：国家自然科学基金(41502298)。

摘　　要：为研究带梁式转换层框支剪力墙结构的抗连续倒塌能力及变形程度,通过有限元软件建立本结构的三维模型,基于备用荷载路径法,以某带梁式转换层的框支剪力墙结构为研究对象,选取不同失效工况分别进行非线性分析,研究初始破坏后剩余结构的节点位移、内力机制及内力重分布过程。结果表明:根据各个工况下对失效点变形情况可得底层位移大于转换层位移;同层不同位置柱的对应位移大小依次为角柱、内柱、长边中柱、短边中柱;承重柱失效后其相邻构件的不平衡内力分担情况遵循“就近原则”。In order to study the progressive collapse resistance and deformation degree of the frame supported shear wall structure with beam transfer story,a three-dimensional model of the structure was established by finite element software.Based on the alternate load path method,a frame supported shear wall structure with beam transfer story was taken as the research object,and different failure conditions were selected for nonlinear analysis to study the node displacement and internal displacement of the remaining structure after initial failure force mechanism and redistribution process of internal force.The results show that,according to the deformation of the failure point under each working condition,the displacement of the bottom layer is greater than that of the transfer layer.The corresponding displacement of the columns at different positions in the same layer is in the order of corner column,inner column,long side middle column and short side middle column.After the failure of the bearing column,the unbalanced internal force distribution of its adjacent members follows the“nearest principle”.

关 键 词：转换层 框支剪力墙 连续倒塌 备用荷载路径法 非线性分析 

分 类 号：TU398[建筑科学—结构工程]