单层单跨门式刚架结构纵向抗震性能时程分析

英文篇名：The longitudinal seismic time history analysis of one-story single-span portal frame structure
中文刊名：西安建筑科技大学学报(自然科学版)
英文刊名：Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
作者：冉红东 ; 焦培培 ; 苏明周
英文作者：RAN Hong-dong ; SU Ming-zhou ; JIAO Pei-pei(School of Civil Engineering ; Xi’an Univ.of Arch.& Tech ; Xi’an 710055 ; China)
中文关键词：门式刚架 ; 交叉支撑 ; 纵向地震 ; 抗震性能 ; 时程分析
英文关键词：portal frame ; cross braces ; longitudinal seismic ; seismic performance ; time history analysis
出版日期：2013-06-28
机构：西安建筑科技大学土木工程学院;
年：2013
期：03
出版单位：西安建筑科技大学学报(自然科学版)

摘要

为研究门式刚架结构纵向支撑体系的抗震性能,采用有限元软件ANSYS对《门式刚架轻型房屋钢结构》(02SG518-1)中的GJ18-1C、GJ24-1C、GJ30-1C、GJ36-1C四个门式刚架在不同工况纵向地震作用下的性能进行了动力弹塑性时程分析.分析结果表明:门式刚架结构的纵向地震作用较小,即使在罕遇地震阶段,纵向地震作用引起的结构内力仍较小,柱顶侧移也远小于规程要求,表明按现行规程设计的门式刚架完全能满足结构纵向变形要求,具有优良的纵向抗震性能.
In order to study the longitudinal seismic behavior of one-story single-span portal frame structure,a finite element analysis of portal frame structure was performed to simulate the overall elasto-plastic time-history process with FEM program ANSYS.The type of portal frame included GJ18-1C,GJ24-1C,GJ30-1C,GJ36-1C,in portal frame light steel structure housing atlas(02SG518-1),respectively.The study reveals that the longitudinal seismic effect of portal frame structure was small,and even at rare earthquake stage,the maximum displacement at the top of column is far less than required by the code,and the portal frame designed according to the current regulations can satisfy vertical deformation requirements.

引文

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