| 结构模态Pushover及高振型影响的对比评估 |
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| 引用本文： | 王七林,闻奇光.结构模态Pushover及高振型影响的对比评估[J].土木与环境工程学报,2009,31(1):60-65. |
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| 作者姓名： | 王七林 闻奇光 |
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| 作者单位： | 1. 重庆大学建筑设计研究院,重庆,400045
2. 中国汉嘉设计集团股份有限公司西南分公司,成都,610041 |
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| 基金项目： | 重庆市科委自然科学基金 |
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| 摘 要： | 以6层、10层和16层规则钢筋混凝土平面框架为例,对框架输入3种不同加速度幅值的地震动,并将各框架在七条地震波作用下的非线性动力反应统计结果作为对比基准点,以层间侧移和梁、柱端部转角为考察对象,研究了4种常规Pushover及Modal Pushover的分析结果的误差变化规律。研究表明,随框架层数增加,Modal Pushover的层间侧移误差基本不变,常规Pushover的模拟误差明显增大,表明Modal Pushover能更合理地模拟高振型的影响。随非线性程度加深,Modal Pushover、常规Pushover分析的层间侧移误差均相应增大。Modal Pushover对上部楼层梁端转角和多数柱端转角的模拟误差明显比常规Pushover更小。
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| 关 键 词： | 钢筋混凝土 框架 高振型 模态Pushover 非线性分析 |
A Comparative Evaluation of Model Pushover and the Influence of Higher Modes |
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| WANG Qi-lin,WEN Qi-guang.A Comparative Evaluation of Model Pushover and the Influence of Higher Modes[J].Journal of Civil and Environmental Engineering,2009,31(1):60-65. |
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| Authors: | WANG Qi-lin WEN Qi-guang |
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| Affiliation: | 1.Architectural Design and Research Institute of Chongqing University;Chongqing 400045;P.R.China;2.Hanjia Design Group Joint-Stock Company of China Southwest Branch Company;Chendu 610041;P.R.China |
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| Abstract: | Three reinforced concrete plane frames with total heights of 6,10,and 16 stories,respectively were taken as examples.Nonlinear dynamic responses of three frames under excitations of seven earthquake waves with varying earthquake intensities were selected as the datum mark of a comparison study.The changing rules of the responses analyzed by four kinds of ordinary Pushover Analysis and Modal Pushover Analysis were studied by reviewing the inter-story drift ratio and rotation at beam and column ends.Results s... |
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| Keywords: | reinforced concrete frame higher modes modal pushover nonlinear analysis |
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