| Pushover分析中抗力曲线的概率研究 |
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| 引用本文： | 易伟建,蒋蝶.Pushover分析中抗力曲线的概率研究[J].地震工程与工程振动,2009,29(1). |
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| 作者姓名： | 易伟建 蒋蝶 |
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| 作者单位： | 湖南大学,土木工程学院,湖南,长沙,410082 |
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| 基金项目： | 国家自然科学基金项目(50678064);;湖南省科技计划重点项目(06FJ3003) |
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| 摘 要： | 本文在已有的研究基础上，结合我国现行的抗震规范（GB50011—2001）和地震作用统计参数，提出了pushover分析中结构体系抗力曲线的保证率计算方法。以pushover分析所得的塑性铰出现次序和最终数量作为结构主要失效模式，同时考虑了结构抗力以及地震作用的随机性对结构体系抗力曲线的影响，借助于主要随机变量的灵敏度分析，得到了确定性pushover分析曲线的保证率。框架结构算例给出了本文方法的计算结果，并用重要抽样法进行了检验。
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| 关 键 词： | pushover分析 概率分析 能力曲线 重要抽样法 |
Probabilistic research on capacity curve in pushover analysis |
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| YI Weijian,Jiang Die.Probabilistic research on capacity curve in pushover analysis[J].Earthquake Engineering and Engineering Vibration,2009,29(1). |
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| Authors: | YI Weijian Jiang Die |
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| Institution: | Civil Engineering Department;Hunan University;Changsha 410082;China |
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| Abstract: | On the basis of studies about probabilistic analysis of the pushover method and the combination of Chinese seismic code(GB50011-2001) and the statistic parameters of earthquake action,a new computing method used for calculation of reliability of the structural capacity curve obtained from the pushover analysis is developed.With the pushover analysis,the sequence and number of the plastic hinges of a structure is taken as the dominant failure mode.The influence of probabilistic characteristics of the structu... |
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| Keywords: | pushover analysis probability analysis capacity curve importance sampling method |
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