| 最不利设计地震动研究 |
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| 引用本文： | 谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003,25(3):250-261. |
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| 作者姓名： | 谢礼立 翟长海 |
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| 作者单位： | 1) 中国哈尔滨150090哈尔滨工业大学土木工程学院
2) 中国哈尔滨150080中国地震局工程力学研究所 |
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| 基金项目： | 国家自然科学基金重大项目 (5 9895 4 10 )，地震科学联合基金 (95 0 7 4 4 4 ) |
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| 摘 要： | 实际记录到的真实地震动在工程结构的抗震研究、分析和设计中往往作为一种施加到结构上使结构振动，直至破坏的地震荷载．如何合理选择真实的地震动记录作为研究结构地震反应的输入，一直是国内外抗震研究和设计中引人关注的重要问题．本文首先提出了最不利设计地震动的概念；然后在收集到的国内外5000余条被认为有重要意义的地震动记录基础上，利用综合估计地震动潜在破坏势的方法，对４种场地类型分别给出了长周期、短周期和中周期结构的国内外最不利设计地震动；最后通过几类不同结构的地震反应分析，初步验证了本文所确定的最不利设计地震动的可靠性和合理性．
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| 关 键 词： | 最不利设计地震动& 记录数据库& 地震动参数& 地震动潜在破坏势& 综合评价法 |
| 文章编号： | 0253-3782(2003)03-0250-12 |
| 修稿时间： | 2002年6月14日 |
STUDY ON THE SEVEREST REAL GROUND MOTION FOR SEISMIC DESIGN AND ANALYSIS |
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| Xie Lili , Zhai Changhai School of Civil Engineering and Architecture,Harbin Institute of Technology,Harbin ,China Institute of Engineering Mechanics,China Seismological Bureau,Harbin ,China.STUDY ON THE SEVEREST REAL GROUND MOTION FOR SEISMIC DESIGN AND ANALYSIS[J].Acta Seismologica Sinica,2003,25(3):250-261. |
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| Authors: | Xie Lili Zhai Changhai School of Civil Engineering and Architecture Harbin Institute of Technology Harbin China Institute of Engineering Mechanics China Seismological Bureau Harbin China |
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| Institution: | Xie Lili 1,2) Zhai Changhai 1) 1) School of Civil Engineering and Architecture,Harbin Institute of Technology,Harbin 150090,China 2) Institute of Engineering Mechanics,China Seismological Bureau,Harbin 150080,China |
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| Abstract: | How to select the adequate real strong earthquake ground motion for seismic analysis and design of structures is an essential problem in earthquake engineering research and practice. In the paper the concept of the severest design ground motion is proposed and a method is developed for comparing the severity of the recorded strong ground motions. By using this method the severest earthquake ground motions are selected out as seismic inputs to the structures to be designed from a database that consists of more than five thousand significant strong ground motion records collected at home and abroad. The selected severest ground motions are very likely to be able to drive the structures to their critical response and thereby result in the highest damage potential. It is noted that for different structures with different predominant natural periods and at different sites where structures are located the severest design ground motions are usually different. Finally, two examples are illustrated to demonstrate the rationality of the concept and the reliability of the selected design motion. |
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| Keywords: | the severest design ground motion parameters of ground motion database of ground motion damage potential of strong ground motion comprehensive method |
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