近断层地震地面运动峰值衰减规律研究
|
摘要
研究近断层区域地震动的峰值衰减规律,可以为近断层区的地震危险性分析和工程结构抗震设计提供关键性基础数据.基于包括中国"5.12"汶川地震在内的全球23次地震事件中的338条近断层地震动记录,引入考虑震级和断层距影响的地震动衰减模型,采用最小二乘法对峰值加速度、峰值速度及峰值位移进行了回归分析,得到了近断层区域地震动峰值的衰减关系.与其他学者所提出的衰减关系的对比表明,文中提出的峰值衰减模型可更准确地揭示近断层区域地震动峰值的衰减变化规律.
The peak value attenuation relationship of earthquake ground motions in near-fault regions should be investigated to provide the key basic data for seismic hazard analyses and engineering structure seismic design in the vicinity of active fault district.Based on the collection of 338 near-fault records from 23 worldwide earthquake events including the "5.12" Wenchuan Earthquake,an attenuation model which considered the influence of magnitude and distance to fault rupture was proposed,and the parameter regression analysis for PGA、PGV and PGD was calculated by least square method.The peak attenuation relationship of near-fault earthquake ground motion was obtained.The comparison with other attenuation relationships shows that the advised peak attenuation relationship can correctly reveal the peak attenuation in near-fault regions.
The peak value attenuation relationship of earthquake ground motions in near-fault regions should be investigated to provide the key basic data for seismic hazard analyses and engineering structure seismic design in the vicinity of active fault district.Based on the collection of 338 near-fault records from 23 worldwide earthquake events including the "5.12" Wenchuan Earthquake,an attenuation model which considered the influence of magnitude and distance to fault rupture was proposed,and the parameter regression analysis for PGA、PGV and PGD was calculated by least square method.The peak attenuation relationship of near-fault earthquake ground motion was obtained.The comparison with other attenuation relationships shows that the advised peak attenuation relationship can correctly reveal the peak attenuation in near-fault regions.
引文
[1]霍俊荣.近场强地面运动衰减规律的研究[D].哈尔滨:国家地震局工程力学研究所,1989.HUO Junrong.Study on attenuation relationship of near-fault strong ground motion[D].Harbin:China EarthquakeAdministration Institute of Engineering Mechanics,1989.(in Chinese)
[2]Wang G Q,Zhou X Y,Zhang P Z,et al.Characteristics ofamplitude and duration for near fault strong ground motionfrom the 1999 Chi-Chi,taiwan earthquake[J].Soil Dy-namics and Earthquake Engineering,2002,20(1):73-96.
[3]Shabestari K T,Yamazaki F.Attenuation relationships ofthe ground motion parameters considering directivity effectsin the 1999 Chi-Chi,taiwan earthquake[C]∥Seventh U.S.National Conference on Earthquake Engineering,Boston,Massachusetts,No.00025,2002:21-25.
[4]李新乐.近断层区桥梁结构的设计地震与抗震性能研究[D].北京:北京交通大学,2004.LI Xinle.Study on design earthquake and seismic perfor-mance of bridge in near-fault areas[D].Beijing:BeijingJiaotong University,2004.(in Chinese)
[5]康兰池,金星.四川地区地震动峰值衰减规律研究[J].地震学报,2009,31(4):403-410.KANG Lanchi,JIN Xing.Ground motion attenuation re-lation for small to moderate earthquakes in Sichuan region[J].Acta Seismologica Sinica,2009,31(4):403-410.(in Chinese)
[6]卢建旗,李山有,李伟.中强地震活动区地震动衰减关系的确定[J].世界地震工程,2009,25(4):33-43.LU Jianqi,LI Shanyou,LI Wei.Study on ground motionattenuation relationship of moderate earthquake risk areas[J].World Information On Earthquake Engineering,2009,25(4):33-43.(in Chinese)
[7]邵广彪,冯启民.近断层地震动加速度峰值衰减规律的研究[J].地震工程与工程振动,2004,24(3):30-36.SHAO Guangbiao,FENG Qimin.Research on attenuationof near-fault peak strong ground motion acceleration[J].Earthquake Engineering and Engineering Vibration,2004,24(3):30-36.(in Chinese)
[8]冯启民,邵广彪.近断层地震动速度、位移峰值衰减规律的研究[J].地震工程与工程振动,2004,24(4):13-19.FENG Qimin,SHAO Guangbiao.Research on attenuationof near-fault peak strong ground motion velocity and dis-placemen[J].Earthquake Engineering And EngineeringVibration,2004,24(4):13-19.(in Chinese)
[9]Pacific Earthquake Engineering Research Center.PEERStrong Motion Database[DB/OL].(2010-02-05).http:∥peer.berkeley.edu/smcat/search.html.
[10]Campebll K W.The dependence of peak horizontal accel-eration on magnitude,distance,and site effects for small-magnitude earthquakes in California and eastern northAmerica[J].Bulletin of the Seismological Society ofAmeirca,1989,79(5):1311-1346.
[11]Ambraseys N N,Douglas J.Near-field horizontal and ver-tical earthquake ground motions[J].Soil Dynamics andEarthquke Engneering,2003,23(1):1-18.
[12]胡聿贤.地震工程学[M].北京:地震出版社,1988:194-202.HU Yuxian.Earthquake engineering[M].Beijing:Earthquake Press,1988:194-202.(in Chinese)
[13]徐士良.C常用算法程序集[M].北京:清华大学出版社,1994:233-236.XU Shiliang.C common algorithm assemblies[M].Bei-jing:Tsinghua University Press,1994:233-236.(inChinese)
[2]Wang G Q,Zhou X Y,Zhang P Z,et al.Characteristics ofamplitude and duration for near fault strong ground motionfrom the 1999 Chi-Chi,taiwan earthquake[J].Soil Dy-namics and Earthquake Engineering,2002,20(1):73-96.
[3]Shabestari K T,Yamazaki F.Attenuation relationships ofthe ground motion parameters considering directivity effectsin the 1999 Chi-Chi,taiwan earthquake[C]∥Seventh U.S.National Conference on Earthquake Engineering,Boston,Massachusetts,No.00025,2002:21-25.
[4]李新乐.近断层区桥梁结构的设计地震与抗震性能研究[D].北京:北京交通大学,2004.LI Xinle.Study on design earthquake and seismic perfor-mance of bridge in near-fault areas[D].Beijing:BeijingJiaotong University,2004.(in Chinese)
[5]康兰池,金星.四川地区地震动峰值衰减规律研究[J].地震学报,2009,31(4):403-410.KANG Lanchi,JIN Xing.Ground motion attenuation re-lation for small to moderate earthquakes in Sichuan region[J].Acta Seismologica Sinica,2009,31(4):403-410.(in Chinese)
[6]卢建旗,李山有,李伟.中强地震活动区地震动衰减关系的确定[J].世界地震工程,2009,25(4):33-43.LU Jianqi,LI Shanyou,LI Wei.Study on ground motionattenuation relationship of moderate earthquake risk areas[J].World Information On Earthquake Engineering,2009,25(4):33-43.(in Chinese)
[7]邵广彪,冯启民.近断层地震动加速度峰值衰减规律的研究[J].地震工程与工程振动,2004,24(3):30-36.SHAO Guangbiao,FENG Qimin.Research on attenuationof near-fault peak strong ground motion acceleration[J].Earthquake Engineering and Engineering Vibration,2004,24(3):30-36.(in Chinese)
[8]冯启民,邵广彪.近断层地震动速度、位移峰值衰减规律的研究[J].地震工程与工程振动,2004,24(4):13-19.FENG Qimin,SHAO Guangbiao.Research on attenuationof near-fault peak strong ground motion velocity and dis-placemen[J].Earthquake Engineering And EngineeringVibration,2004,24(4):13-19.(in Chinese)
[9]Pacific Earthquake Engineering Research Center.PEERStrong Motion Database[DB/OL].(2010-02-05).http:∥peer.berkeley.edu/smcat/search.html.
[10]Campebll K W.The dependence of peak horizontal accel-eration on magnitude,distance,and site effects for small-magnitude earthquakes in California and eastern northAmerica[J].Bulletin of the Seismological Society ofAmeirca,1989,79(5):1311-1346.
[11]Ambraseys N N,Douglas J.Near-field horizontal and ver-tical earthquake ground motions[J].Soil Dynamics andEarthquke Engneering,2003,23(1):1-18.
[12]胡聿贤.地震工程学[M].北京:地震出版社,1988:194-202.HU Yuxian.Earthquake engineering[M].Beijing:Earthquake Press,1988:194-202.(in Chinese)
[13]徐士良.C常用算法程序集[M].北京:清华大学出版社,1994:233-236.XU Shiliang.C common algorithm assemblies[M].Bei-jing:Tsinghua University Press,1994:233-236.(inChinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心