| 单向偏心结构的简化增量动力分析方法 |
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| 引用本文： | 李宁,翟长海,谢礼立.单向偏心结构的简化增量动力分析方法[J].工程力学,2011(5):8-12. |
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| 作者姓名： | 李宁 翟长海 谢礼立 |
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| 作者单位： | 天津大学建筑工程学院/滨海土木工程结构与安全教育部重点实验室(天津大学);哈尔滨工业大学土木学院;中国地震局工程力学研究所; |
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| 基金项目： | 国家自然科学基金项目(90815014,90715021) |
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| 摘 要： | 增量动力分析方法(IDA)可以较为全面的评估结构的抗震性能,但需对结构进行大量的非线性时程分析,计算量巨大.该文将单向偏心结构的等效二自由度模型(EDDOF)应用于增量动力时程分析,提出了单向偏心结构的简化增量动力分析方法.然后选取20条实际地震记录和一栋5层偏心结构,基于等效二自由度模型和原型模型分别进行了增量动力时...
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| 关 键 词： | 扭转反应 增量动力分析 性态评估 偏心 模态Pushover |
SIMPLIFIED INCREMENTAL DYNAMIC ANALYSIS METHOD FOR UNIAXIAL PLAN-ASYMMETRIC STRUCTURES |
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| LI Ning,ZHAI Chang-hai,XIE Li-li,Ministry of Education,Tianjin ,China,.School of Civil Engineering,Harbin Institute of Technology,Harbin.SIMPLIFIED INCREMENTAL DYNAMIC ANALYSIS METHOD FOR UNIAXIAL PLAN-ASYMMETRIC STRUCTURES[J].Engineering Mechanics,2011(5):8-12. |
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| Authors: | LI Ning ZHAI Chang-hai XIE Li-li Ministry of Education Tianjin China School of Civil Engineering Harbin Institute of Technology Harbin |
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| Affiliation: | LI Ning1,ZHAI Chang-hai2,XIE Li-li2,3(1.School of Civil Engineering,Tianjin University/ Key Laboratory of Coast Civil Structure Safety(Tianjin University),Ministry of Education,Tianjin 300072,China,2.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,3.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China) |
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| Abstract: | The incremental dynamic analysis(IDA) method is a good tool to evaluate the seismic performance of structures.However,it is computationally expensive to conduct inelastic dynamic analysis.In this study,a simplified incremental dynamic analysis method is proposed for the seismic evaluation of plan-asymmetric structures by introducing the equivalent dual degree of freedom(EDDOF) model into the process.With 20 ground motions and a 5-story plan-asymmetric frame structure,the incremental dynamic analysis is perf... |
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| Keywords: | rotational response incremental dynamic analysis seismic performance estimation asymmetric modal pushover |
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