基于NGA衰减关系的坝址设定地震研究
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摘要
开发了地震危险性概率分析程序RISKNEW,在输入数据相同的情况下,采用本文编制的程序与中国地震局地球物理研究所的标准程序计算得到的不同概率水准下的加速度值具有较好的一致性。提出结合潜源区内主干断裂和历史地震,依据地震危险性概率分析结果,即以场地相应设防概率水平的地震动峰值加速度为前提确定设定地震的方法。根据设定地震确定场地相关设计反应谱时,建议直接使用针对美国西部基岩强震记录统计得到的加速度反应谱衰减关系。将充分考虑大震近场特性且针对美国西部浅源地震建立的NGA衰减关系引入到我国水利水电工程设定地震研究。
A probabilistic seismic hazard analysis program RISKNEW is developed and tested in this paper.The test results show that,when using the same input data,the acceleration values of different probability levels calculated by RISKNEW are in good agreement with those obtained by using the standard procedure developed by the Institute of Geophysics,China Earthquake Administration.According to the main faults and historical earthquake of a potential seismic source zone,and on the basis of the peak ground motion acceleration corresponding to the specific probability levels of probabilistic seismic hazard analysis,the authors proposed a method for determining scenario earthquake.As for the design response spectrum of the site in consideration,this method recommends attenuation relations derived from statistics of strong earthquakes in the Western United States,instead of those obtained by seismic intensity conversion.The Next Generation Attenuation(NGA)relations are introduced to the study on scenario earthquake of water resources and hydropower projects in China.These relations have been developed for shallow earthquakes in the Western United States and proved to be applicable to represent the characteristics of near-fault and large earthquakes.
A probabilistic seismic hazard analysis program RISKNEW is developed and tested in this paper.The test results show that,when using the same input data,the acceleration values of different probability levels calculated by RISKNEW are in good agreement with those obtained by using the standard procedure developed by the Institute of Geophysics,China Earthquake Administration.According to the main faults and historical earthquake of a potential seismic source zone,and on the basis of the peak ground motion acceleration corresponding to the specific probability levels of probabilistic seismic hazard analysis,the authors proposed a method for determining scenario earthquake.As for the design response spectrum of the site in consideration,this method recommends attenuation relations derived from statistics of strong earthquakes in the Western United States,instead of those obtained by seismic intensity conversion.The Next Generation Attenuation(NGA)relations are introduced to the study on scenario earthquake of water resources and hydropower projects in China.These relations have been developed for shallow earthquakes in the Western United States and proved to be applicable to represent the characteristics of near-fault and large earthquakes.
引文
[1]刘启方,袁一凡,金星,等.近断层地震动的基本特征[J].地震工程与工程振动,2006,26(1):1-10.
[2]Abrahamson N A,Silva W J.Abrahamson&Silva NGA ground motion relations for the geometric mean horizontalc omponent of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering Research CenterU niversity of California,Berkeley,2007.
[3]Boore D M,Atkinson G M.Boore-Atkinson NGA ground motion relations for the geometric mean horizontalc omponent of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering Research CenterU niversity of California,Berkeley,2007.
[4]Campbell K W,Bozorgnia Y.Campbell-Bozorgnia NGA ground motion relations for the geometric mean horizont al component of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering ResearchC enter University of California,Berkeley,2007.
[5]Chiou B S J,Youngs R R.Chiou and Youngs PEER-NGA empirical ground motion model for the average horiz ontal component of peak acceleration and pseudo-spectral acceleration for spectral periods of0.01to10seconds[R].Pacific Earthquake Engineering Research Center University of California,Berkeley,2007.
[6]Idriss I M.Empirical model for estimating the average horizontal values of pseudo-absolute spectral accelerationsgenerated by crustal earthquakes[R].Pacific Earthquake Engineering Research Center University of California,Berkeley,2007.
[7]陈厚群,李敏,石玉成.基于设定地震的重大工程场地设计反应谱的确定方法[J].水利学报,2005,36(12):1399-1404.
[8]高德潜,黄伟生,张永凯.地震危险性分析程序SHA的敏感性分析[J].地震学刊,1998(2):41-47.
[9]四川省地震局工程地震研究院,中国地震局地质研究所等.四川省大渡河大岗山水电站预可行性研究报告:工程场地地震安全性评价报告[R].2004.
[10]中国水利水电科学研究院,中国地震局地质研究所.四川省大渡河大岗山水电站设计地震动输入研究报告[R].2005.
[11]中国水利水电科学研究院.大渡河大岗山水电站场地设计地震动参数的不确定性专题研究报告[R].2006.
[12]中国水利水电科学研究院.金沙江白鹤滩水电站场地相关反应谱分析研究报告[R].2005.
[13]陈厚群,李敏,张艳红.地震危险性分析和地震动输入机制研究[J].水力发电,2001(8):48-50.
[14]陈厚群,李敏,石玉成.基于设定地震的重大工程场地设计反应谱的确定方法[J].水利学报,2005,36(12):1399-1404.
[15]马宗晋,张德成.板块构造基本问题[M].北京:地震出版社,1986.
[16]马宗晋,杜品仁.现今地壳运动问题[M].北京:地震出版社,1995.
[2]Abrahamson N A,Silva W J.Abrahamson&Silva NGA ground motion relations for the geometric mean horizontalc omponent of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering Research CenterU niversity of California,Berkeley,2007.
[3]Boore D M,Atkinson G M.Boore-Atkinson NGA ground motion relations for the geometric mean horizontalc omponent of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering Research CenterU niversity of California,Berkeley,2007.
[4]Campbell K W,Bozorgnia Y.Campbell-Bozorgnia NGA ground motion relations for the geometric mean horizont al component of peak and spectral ground motion parameters[R].Pacific Earthquake Engineering ResearchC enter University of California,Berkeley,2007.
[5]Chiou B S J,Youngs R R.Chiou and Youngs PEER-NGA empirical ground motion model for the average horiz ontal component of peak acceleration and pseudo-spectral acceleration for spectral periods of0.01to10seconds[R].Pacific Earthquake Engineering Research Center University of California,Berkeley,2007.
[6]Idriss I M.Empirical model for estimating the average horizontal values of pseudo-absolute spectral accelerationsgenerated by crustal earthquakes[R].Pacific Earthquake Engineering Research Center University of California,Berkeley,2007.
[7]陈厚群,李敏,石玉成.基于设定地震的重大工程场地设计反应谱的确定方法[J].水利学报,2005,36(12):1399-1404.
[8]高德潜,黄伟生,张永凯.地震危险性分析程序SHA的敏感性分析[J].地震学刊,1998(2):41-47.
[9]四川省地震局工程地震研究院,中国地震局地质研究所等.四川省大渡河大岗山水电站预可行性研究报告:工程场地地震安全性评价报告[R].2004.
[10]中国水利水电科学研究院,中国地震局地质研究所.四川省大渡河大岗山水电站设计地震动输入研究报告[R].2005.
[11]中国水利水电科学研究院.大渡河大岗山水电站场地设计地震动参数的不确定性专题研究报告[R].2006.
[12]中国水利水电科学研究院.金沙江白鹤滩水电站场地相关反应谱分析研究报告[R].2005.
[13]陈厚群,李敏,张艳红.地震危险性分析和地震动输入机制研究[J].水力发电,2001(8):48-50.
[14]陈厚群,李敏,石玉成.基于设定地震的重大工程场地设计反应谱的确定方法[J].水利学报,2005,36(12):1399-1404.
[15]马宗晋,张德成.板块构造基本问题[M].北京:地震出版社,1986.
[16]马宗晋,杜品仁.现今地壳运动问题[M].北京:地震出版社,1995.
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