| Study on the severest real ground motion for seismic design and analysis |
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| 作者姓名： | 谢礼立 翟长海 |
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| 作者单位： | [1]InstituteofEngineeringMechanics,ChinaSeismologicalBureau,Harbin150080,China [2]SchoolofCivilEngineeringandArchitecture,HarbinInstituteofTechnology,Harbin150090,China |
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| 基金项目： | National Natural Science Foundation of China (59895410)，Natural Science Foundation of Heilongjiang Province (E0228)，Joint Seismological Foundation of China (95-07-444). |
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| 摘 要： | How to select the adequate real strong earthquake ground motion for seismic analysis and design of trucures 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 moton records collected over the world.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 diffferent 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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| 关 键 词： | 最不利设计地震动 地震记录数据库 地震动参数 地震动潜在破坏势 综合评价法 工程结构 |
| 收稿时间： | 14 June 2002 |
| 修稿时间： | 25 October 2002 |
Study on the severest real ground motion for seismic design and analysis |
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| Xie Li-li,and Zhai Chang-hai.Study on the severest real ground motion for seismic design and analysis[J].Acta Seismologica Sinica(English Edition),2003,16(3):260-271. |
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| Authors: | Xie Li-li and Zhai Chang-hai |
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| Institution: | 1. School of Civil Engineering and Architecture, Harbin Institute of Technology, Harbin 150090, China; Institute of Engineering Mechanics, China Seismological Bureau, Harbin 150080, China
2. School of Civil Engineering and Architecture, Harbin Institute of Technology, Harbin 150090, 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 over the world. 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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