框架结构模态静力非线性抗震分析方法研究

英文篇名：Study on the modal Pushover seismic analysis methods of frame structures
中文刊名：建筑结构
英文刊名：Building Structure
作者：张宝生 ; 崔松 ; 卢文生
英文作者：Zhang Baosheng~1 ; Cui song~2 ; Lu Wensheng~2 (1 China Nuclear Power Engineering Co. ; Ltd. ; Zhengzhou Branch ; Zhengzhou 450052 ; China ; 2 Co-Joint Design Group Shanghai ; Shanghai 200081 ; China)
中文关键词：框架结构 ; 纤维模型 ; 模态静力非线性分析 ; 目标位移
英文关键词：frame structure ; fiber element model ; Modal Pushover Analysis(MPA) ; target displacement
出版日期：2009-08-15
机构：中国核电工程有限公司郑州分公司;上海诚建建筑规划设计有限公司;
年：2009
期：S2
出版单位：建筑结构

摘要

本文在模态Pushover分析方法基础上,推导建立了模态静力非线性分析方法,对一栋12层框架结构进行了模态静力非线性分析,提出了目标位移求解的等效单自由度体系弹塑性时程分析迭代法,计算结果与相应时程分析结果进行了比较,表明两者吻合较好,验证了本文计算方法的有效性,为静力非线性分析方法的推广使用提供参考。
In this paper,a Modal Pushover Analysis method(MPA) was derived,and the time-history elasto-plastic iteration method was put forward to solve the target displacement of equivalent SDOF system.A 12-story frame structure was studied by the nonlinear dynamic method and Modal Pushover Analysis method,respectively.The analysis results show that the calculating errors are notably reduced with the increase of the vibration modes.When the higher modes are considered,the improvement to the error of top displacement is not as obvious as that of inter-story drift,which indicates that the higher modes have a larger effect on the inter-story drift than the total displacement of the structures.

引文

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