| Long-period ground motion characteristic of the 1999 Jiji (Chi-Chi),Taiwan,main-shock and aftershocks |
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| 作者姓名： | 李春锋 张旸 赵金宝 唐晖 |
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| 作者单位： | Institute of Geophysics China Earthquake Administration，Institute of Geophysics China Earthquake Administration，AVIC Institute of Geotechnical Engineering，Institute of Engineering Mechanics China Earthquake Administration，Beijing 100081 China，Beijing 100081 China，Beijing 100098 China，Harbin 150080 China |
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| 基金项目： | National Natural Science Foundation of China (50278090). |
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| 摘 要： | Introduction The study of attenuation relations for long-period ground motion is to meet the requirement of economy development. During the earthquakes such as the June 16, 1964 Niigata, Japan, M=7.5 earthquake, the March 24, 1977 Romania M=7.3 earthquake, the March 29, 1970 Gediz, Turkey, M=7.1 earthquake, the May 26, 1983 M=7.7 earthquake in the middle Japanese Sea, the September 19, 1985 Mexico M=8.1 earthquake, the September 16, 1994 M=7.3 earthquake in Tai- wan Strait, and the No…
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Long-period ground motion characteristic of the 1999 Jiji (Chi-Chi),Taiwan,main- shock and aftershocks |
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| LI Chun-feng,ZHANG YangZHAO Jin-baoTANG Hui Institute of Geophysics,China Earthquake Administration,Beijing ,China AVIC Institute of Geotechnical Engineering,Beijing ,China Institute of Engineering Mechanics,China Earthquake Administration,Harbin ,China.Long-period ground motion characteristic of the 1999 Jiji (Chi-Chi),Taiwan,main-shock and aftershocks[J].Acta Seismologica Sinica(English Edition),2006(4). |
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| Authors: | LI Chun-feng ZHANG YangZHAO Jin-baoTANG Hui Institute of Geophysics China Earthquake Administration Beijing China AVIC Institute of Geotechnical Engineering Beijing China Institute of Engineering Mechanics China Earthquake Administration Harbin China |
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| Institution: | LI Chun-feng1),ZHANG Yang1)ZHAO Jin-bao2)TANG Hui3)1) Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 2) AVIC Institute of Geotechnical Engineering,Beijing 100098,China 3) Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China |
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| Abstract: | This paper investigates long-period ground motion characteristic of the 1999 Jiji (Chi-Chi), Taiwan, mainshock and aftershocks on the basis of lots of high quality digital strong motion records. The study attaches the importance to the variation of strength of the long-period ground motion with the magnitude, distance, and site condition. In the meantime, the near-fault long-period ground motion characteristic is analyzed. The result shows that the shape of the long-period response spectrum is mainly controlled by site condition and magnitude (the spectrum of class D+E is wider than that of class B+C, and the spectrum of larger magnitude is wider than that of smaller magni- tude), and the effect of fault distance on the shape is not evident. And near-fault long-period ground motion char- acteristic depends on fault activity apparently, that is to say, the long-term ground motion in the hanger is stronger than that in the footwall, and the long-term ground motion in the north is stronger than that in the south. |
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| Keywords: | Jiji (Chi-Chi) earthquake long-period ground motion response spectrum Chelongpu (Che- lungpu) fault |
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