| 某钢框架结构的抗震加固及动力时程分析 |
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| 引用本文： | 李敏锋,金国芳,阳洋,吴毅彬. 某钢框架结构的抗震加固及动力时程分析[J]. 沈阳工业大学学报, 2011, 33(4): 456-461 |
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| 作者姓名： | 李敏锋 金国芳 阳洋 吴毅彬 |
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| 作者单位： | 同济大学结构工程与防灾研究所; |
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| 基金项目： | 国家自然科学基金创新研究群体项目(50621062) |
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| 摘 要： | 为了改善某未按图施工的平面不规则钢框架结构房屋的抗震性能，采用局部增设钢支撑对其进行抗震加固.利用SAP2000软件建立空间模型，对该钢框架结构按现状及加固后两种工况进行动力时程分析，探究其在各种地震工况作用下的抗震性能，研究结构的顶层位移反应、层间位移分布和基底剪力分布的影响.分析表明，优化后的加固方案使结构体系抗震变形得到控制，扭转效应明显减少，为类似工程的抗震加固提供了参考.
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| 关 键 词： | 钢框架 平面不规则 抗震加固 钢支撑 地震波 时程分析 动力特性 抗震性能 |
Anti-seismic strengthening and dynamic time-history analysis of a steel frame structure |
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| LI Min-feng,JIN Guo-fang,YANG Yang,WU Yi-bin. Anti-seismic strengthening and dynamic time-history analysis of a steel frame structure[J]. Journal of Shenyang University of Technology, 2011, 33(4): 456-461 |
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| Authors: | LI Min-feng JIN Guo-fang YANG Yang WU Yi-bin |
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| Affiliation: | LI Min-feng,JIN Guo-fang,YANG Yang,WU Yi-bin(Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China) |
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| Abstract: | In order to improve the anti-seismic performance of a building with plane abnormity steel frame structure which was not constructed according to the design drawing,the anti-seismic strengthening for the building was carried out with locally adding the steel support.The SAP2000 software was used to establish a spatial model,and then the dynamic time-history analysis for the steel frame structure under both existing and strengthed conditions was performed.In addition,the anti-seismic performance of the struct... |
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| Keywords: | steel frame plane abnormity anti-seismic strengthening steel support earthquake wave time-history analysis dynamic characteristic anti-seismic performance |
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