错层板柱结构Push-over静力弹塑性模拟分析  

Push-over Static Elastic-plastic Simulation Analysis of Staggered Plate-column Structure

作　　者：廖振 梁书亭[2] 朱筱俊 孙博伟 LIAO Zhen;LIANG Shuting;ZHU Xiaojun;SUN Bowei(Jiangsu Meicheng Architectural and Planning Design Institute Co.,Ltd,Nanjing Branch,Nanjing Jiangsu 211189China;School of Civil Engineering,Southeast University,Nanjing Jiangsu 211100 China;Architectural Design&Research Institute of Southeast University,Nanjing Jiangsu 210096 China)

机构地区：[1]江苏美城建筑规划设计院有限公司南京分公司,江苏南京211189 [2]东南大学土木工程学院,江苏南京211100 [3]东南大学建筑设计研究院有限公司,江苏南京210096

出　　处：《江苏建筑》2023年第6期18-21,共4页Jiangsu Construction

摘　　要：错层板柱结构是一种较为新颖的结构形式,为研究其抗震性能,以一典型的错层板柱钢筋混凝土框架结构为原型,通过SAP2000建立了缩尺比例为1∶7的缩尺模型,采用Push-over静力弹塑性分析方法对错层板柱结构的动力反应、破坏过程以及破坏模式进行研究,结果表明:缩尺模型最低的三阶固有频率分别为5.08 Hz、17.01 Hz、21.32 Hz;最大层间位移角出现在第3层;随着侧向力的增大,结构主要经历混凝土开裂、出现第一批塑性铰、出现多个塑性铰等阶段,直至结构成为几何可变体而发生破坏。Staggered flat plate structure is a relatively novel structural form.To study the seismic performance of staggered flat plate structure,a typical reinforced concrete frame structure with staggered flat plate was used as a prototype,and a scaled model with a scale of 1∶7 was established through SAP2000.The push-over static elastic-plastic analysis method was used to study the dynamic response,failure process,and failure mode of the staggered flat plate structure.The results show that the lowest three-order natural frequencies of the scaled model are 5.08 Hz,17.01 Hz,and 21.32 Hz,respectively.The maximum interlayer displacement angle appears on the third floor.As the lateral force increases,the structure mainly undergoes stages such as concrete cracking,the emergence of the first batch of plastic hinges,and the emergence of multiple plastic hinges,until the structure becomes a geometric variant and fails.

关 键 词：错层板柱 抗震性能 有限元模拟 静力弹塑性分析 

分 类 号：TU323.1[建筑科学—结构工程]