| 双向地震动作用下多维结构的能力谱方法 |
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| 引用本文： | 王丰,王庆春,高云莉.双向地震动作用下多维结构的能力谱方法[J].大连民族学院学报,2009,11(3):242-246. |
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| 作者姓名： | 王丰 王庆春 高云莉 |
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| 作者单位： | 大连民族学院,土木建筑工程学院,辽宁,大连,116605 |
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| 基金项目： | 大连民族学院人才引进科研基金 |
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| 摘 要： | 目前基于性能抗震设计的研究多集中于平面单向分析，这与实际结构在地震下反应的多维性存在较大差异，尤其对于平面复杂的偏心结构。为此，在单向地震下能力谱方法基础上提出了考虑双向地震动作用的多维结构能力谱方法。基于结构振型组合的分析思路，通过考虑双向地震动作用的振型pushover分析程序得到各振型的能力谱曲线；通过双向地震动作用下的强度折减系数谱来建立需求谱曲线，然后将能力谱曲线与需求谱曲线画于同一个坐标系下，得到双向地震下结构的最大位移反应。最后，由算例分析比较，说明了该方法能够比较准确地估计多维结构在双向地震下的反应需求。
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| 关 键 词： | 双向地震动 能力谱方法 推覆分析能力曲线 弹塑性时程分析 |
Capacity Spectrum Method for Multi-dimensional Structures Subjected to Bi-directional Earthquake Excitations |
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| WANG Feng,WANG Qing-chun,GAO Yunli.Capacity Spectrum Method for Multi-dimensional Structures Subjected to Bi-directional Earthquake Excitations[J].Journal of Dalian Nationalities University,2009,11(3):242-246. |
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| Authors: | WANG Feng WANG Qing-chun GAO Yunli |
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| Institution: | WANG Feng,WANG Qing-chun,GAO Yun-li(College of Architecture & Civil Engineering,Dalian Nationalities University,Dalian Liaoning 116605,China) |
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| Abstract: | Most of the classic performance-based seismic design procedures focus on 2-D unidirection analysis which has a rather large difference to the multi-dimensional reaction under earthquake for real structures,especially to the complicated planar eccentric structures.To solve this problem,a capacity spectrum method for estimating the earthquake demands of multi-dimensional structures subjected to bi-directional earthquake excitations is proposed,in which the modal pushover analysis method for bi-directional ear... |
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| Keywords: | bi-directional earthquake excitations capacity spectrum method pushover capacity curve inelastic dynamic time history response analysis |
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