| Response spectrum of seismic design code for zones lack of near-fault strong earth- quake records |
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| 作者姓名： | 李新乐 窦慧娟 朱晞 孙建刚 |
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| 作者单位： | College of Architecture and Civil Engineering Dalian Nationalities University，College of Architecture and Civil Engineering，Dalian Nationalities University，College of Architecture and Civil Engineering，Beijing JiaoTong University，College of Architecture and Civil Engineering，Dalian Nationalities University，Dalian 116600 China，Dalian 116600 China，Beijing 100044，China，Dalian 116600 China |
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| 基金项目： | National Natural Science Foundation of China (50278002)，Dalian Nationalities University Ph D Foundation (20066104) |
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| 摘 要： | It was shown from the study on the recently near-fault earthquake ground motions that the near-fault effects were seldom considered in the existing Chinese seismic code. Referring to the UBC97 design concept for near-fault factors, based on the collected world-widely free-site records of near-fault earthquakes ground motions classified by earthquake magnitude and site condition, the attenuation relationship expressions of the acceleration spectrum demand at the key points within the long period and moderate period were established in term of the earthquake magnitude and the site condition. Furthermore, the near-fault factors’ expressions about the earthquake magnitude and the fault distance were deduced for the area lack of near-fault strong earthquake records. Based on the current Chinese Building Seismic Design Code, the near-fault effect factors and the modified design spectral curves, which were valuable for the seismic design, were proposed to analyze the seismic response of structures.
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| 关 键 词： | 地震 光谱需求 响应光谱 密码 |
| 文章编号： | 1000-9116（2007）04-0447-07 |
| 收稿时间： | 25 December 2005 |
| 修稿时间： | 2007-01-18 |
Response spectrum of seismic design code for zones lack of near-fault strong earthquake records |
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| Li Xin-le , Dou Hui-juan , Zhu Xi and Sun Jian-gang.Response spectrum of seismic design code for zones lack of near-fault strong earth- quake records[J].Acta Seismologica Sinica(English Edition),2007,20(4):447-453. |
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| Authors: | Li Xin-le Dou Hui-juan Zhu Xi and Sun Jian-gang |
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| Abstract: | It was shown from the study on the recently near-fault earthquake ground motions that the near-fault effects were seldom considered
in the existing Chinese seismic code. Referring to the UBC97 design concept for near-fault factors, based on the collected
world-widely free-site records of near-fault earthquakes ground motions classified by earthquake magnitude and site condition,
the attenuation relationship expressions of the acceleration spectrum demand at the key points within the long period and
moderate period were established in term of the earthquake magnitude and the site condition. Furthermore, the near-fault factors’
expressions about the earthquake magnitude and the fault distance were deduced for the area lack of near-fault strong earthquake
records. Based on the current Chinese Building Seismic Design Code, the near-fault effect factors and the modified design
spectral curves, which were valuable for the seismic design, were proposed to analyze the seismic response of structures.
Foundation item: National Natural Science Foundation of China (50278002) and Dalian Nationalities University Ph D Foundation (20066104). |
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| Keywords: | near-fault strong earthquake records spectral demand design response spectrum near-fault effect factor |
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