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平面不规则混凝土框架结构非线性静力分析侧向力计算方法的研究 预览 被引量:3

Research on lateral load distribution method for asymmetric frame structures in nonlinear static analysis
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摘要 针对平面不规则混凝土框架结构,考虑地震作用对其产生的附加扭转振动效应,提出了两种计算侧向力分布的方法。通过对一平面不规则框架结构进行推覆分析,得到各楼层侧移、层间问侧移角和塑性铰分布情况,并与时程分析结果进行了比较分析。结果表明,两种方法推覆分析得到的塑性铰分布情况与时程分析得到的情况相符合,楼层侧移和层间位移角与时程分析结果吻合也较好,并且从结果精度上看,分层法的误差要小一些。 Considering the torsion effects caused by the earthquake load, two methods calculated the lateral load distribution for asymmetric structures are established. Through pushover analysis and nonlinear time-history (NTH) analysis of a R C asymmetric structure, the validity of the procedure is validated by comparing response quantities such as story displacement, inter-story drift ratio and distribution of plastic hinges. It is shown that the distribution of plastic hinges obtained from pushover analysis is accorded with that of NTH analyis under practical earthquake load ; story displacement and inter-story drift ratio are also in accord with the result of NTH analysis ; and precision of the two methods is better enough to evaluate the capacity of asymmetric structures in pushover analysis.
作者 门进杰 史庆轩 周琦 MEN Jin-Jie, SHI Qing-Xuan, ZHOU Qi, ( 1. College of Civil Engineering, Xian University of Architecture and Technology, Xian 710055, China 2. College of Civil Engineering, Qingdao Technological University, Qingdao 266033, China)
出处 《世界地震工程》 CSCD 北大核心 2007年第1期 125-129,共5页 World Information On Earthquake Engineering
基金 陕西省自然科学基础研究计划项目(2005E232)
关键词 侧向力分布 平面不规则框架结构 扭转效应 非线性静力分析 lateral load distribution asymmetric frame structures torsion effect nonlinear static procedures
作者简介 门进杰(1979-),男,博士研究生,主要从事结构工程抗震研究.
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