基于能力谱法原理的改进模态静力弹塑性分析

辛力; 王敏; 曾凡生; 梁兴文

doi:10.13204/j.gyjz201101014

基于能力谱法原理的改进模态静力弹塑性分析

doi: 10.13204/j.gyjz201101014

1.
1. 中国建筑西北设计研究院有限公司,西安 710003 ;
2.
2. 西安建筑科技大学,西安 710055

详细信息

作者简介:
辛力，男，1981年出生，博士，国家一级注册结构工程师。E－mail：xinli1129@sina.com

中图分类号: TU313
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- 文章访问数: 87
- HTML全文浏览量: 6
- PDF下载量: 72
- 被引次数: 0
出版历程
- 收稿日期: 2010-07-27
- 刊出日期: 2011-01-20

MODAL PUSHOVER ANALYSIS IMPROVED BY CAPACITY-SPECTRUM THEORY

1.
1. Northwest Building Design &Research Institute Co. Ltd,Xi’an 710003,China;
2.
2. Xi’an University of Architecture and Technology,Xi’an 710055,China

摘要

摘要: 模态静力弹塑性分析法中，动力时程分析部分的可操作性较差，且分析结果不稳定。用能力谱法替代原有的动力时程分析，在现行规范加速度反应谱基础上计算结构各振型等效单自由度体系各性能水平的位移反应，然后将其转化为相应多自由度结构的位移反应，并通过平方和开方法求得结构的总位移反应，用其与结构某一性能水平的位移(层间位移角)限值进行比较，判断设计结果是否满足性能目标要求。该方法改善了模态静力弹塑性分析法的可操作性，使其评估结果更加稳定。
- 模态静力弹塑性分析 /
- 动力时程分析 /
- 能力谱法 /
- 性能目标
Abstract: In the procedure of modal pushover analysis,non-linear time-history analysis is not so operative and its analytical result is unstable,the capacity-spectrum theory is used to take the place of dynamic time-history anslysis.Converting the acceleration response spectrum of current code into displacement response spectrum,the displacement response of equivalent single degree of freedom in each mode of vibration can be calculated by capacity spectrum method.Then the displacement response of multi-degree of freedom can be obtained too,and it is used to compare with the corresponding displacement(storey drift ratio) limits,judging whether the structure satisfies its performance objective or not.The proposed method improves the modal pushover analysisoperation and stability.
- modal pushover analysis /
- non-linear time-history analysis /
- capacity-spectrum method /
- performance objective

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参考文献(13)

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