陕西关中地区不同超越概率水平下地震动峰值加速度关系研究
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摘要
本文以关中四城市地震小区划工作为基础,统计分析了陕西关中地区不同超越概率水平下基岩地震动峰值加速度之间的关系及空间分布特征。针对中硬场地,统计得出了关中地区多遇地震、罕遇地震与设防地震作用的地面峰值加速度比值的均值分别为0.34和1.69。通过与现行建筑抗震设计规范进行了对比分析认为,若以关中城市地震小区划图作为抗震设防标准,按照《建筑抗震设计规范》(GB50011-2010)中有关规定对一般建筑物进行地震作用计算,所考虑的地震作用是合理、安全的。本文研究成果有助于地震小区划图的推广和应用。
Based on the results of seismic microzonation of 4 cities in Guanzhong,statistic analysis is made for relation and spatial distribution characteristics of ground motion peak accelerations of bedrock at different levels of exceeding probability in Guanzhong region.For moderate-rigid soil sites,the average ratios of peak ground accelerations subjected to frequently occurring earthquake and rare earthquake to that of fortification earthquake are 0.34 and 1.69 in Guanzhong region.Compared with the current code for seismic design of buildings,the seismic effects will be reasonable and in safety if taking seismic microzoning map of 4 cities in Guanzhong as the earthquake fortification level and following relevant rules of Code for Seismic Design of Buildings(GB50011-2010) to calculate the seismic action on general buildings.The achievements are helpful to the application of the seismic microzoning map.
Based on the results of seismic microzonation of 4 cities in Guanzhong,statistic analysis is made for relation and spatial distribution characteristics of ground motion peak accelerations of bedrock at different levels of exceeding probability in Guanzhong region.For moderate-rigid soil sites,the average ratios of peak ground accelerations subjected to frequently occurring earthquake and rare earthquake to that of fortification earthquake are 0.34 and 1.69 in Guanzhong region.Compared with the current code for seismic design of buildings,the seismic effects will be reasonable and in safety if taking seismic microzoning map of 4 cities in Guanzhong as the earthquake fortification level and following relevant rules of Code for Seismic Design of Buildings(GB50011-2010) to calculate the seismic action on general buildings.The achievements are helpful to the application of the seismic microzoning map.
引文
[1]GB50011-2010建筑抗震设计规范[S].GB50011-2010 Specifications for Antiseismic Construction Design[S].(in Chinese)
[2]JTG/T B02-01-2008公路桥梁抗震设计细则[S].JTG/T B02-01-2008 Guidelines for Seismic Design of Highway Bridges[S].(in Chinese)
[3]JTJ004-89公路工程抗震设计规范[S].JTJ 004-89 Specifications of Earthquake Resistant Design for Highway Engineering[S].(in Chinese)
[4]DL5073-2000水工建筑物抗震设计规范[S].DL5073-2000 Specifications for Seismic Design of Hydraulic Structures[S].(in Chinese)
[5]GB50111-2006铁路工程抗震设计规范[S].GB50111-2006 Code for Seismic Design of Railway Engineering[S].(in Chinese)
[6]高小旺,鲍霭斌.地震作用的概率模型及其统计参数[J].地震工程与工程振动,1985,5(1):13-22.GAO Xiaowang,BAO Aibin.Probabilistic model and its statistical parameters for seismic load[J].Journal of Earthquake Engineering and Engi-neering Vibration,1985,5(1):13-22.(in Chinese)
[7]高小旺,鲍霭斌.抗震设防标准及各类建筑物抗震设计中“小震”与“大震”的取值[J].地震工程与工程振动,1989,9(1):58-66.GAO Xiaowang,BAO Aibin.Anti-seismic level and values of“moderate”and“major”earthquakes for various types of building in aseismic design[J].Journal of Earthquake Engineering and Engineering Vibration,1989,9(1):58-66.(in Chinese)
[8]陈家庚,鄢家全,高孟潭,等.论行业抗震设防标准的确定原则和依据[J].中国地震,1998,14(2):173-183.CHEN Jiageng,YAN Jiaquan,GAO Mengtan,et al.Principles and bases for determining the standard of seismic design for different fields[J].Earthquake Research in China,1998,14(2):173-183.(in Chinese)
[9]鄢家全,陈家庚,高孟潭,等.抗震设防地震的概率标定[J].国际地震动态,2000a,(9):1-7.YAN Jiaquan,CHEN Jiageng,Gao Mengtan,et al.Calibration of seismic probability in earthquake resistance[J].Recent Developments in WorldSeismology,2000a,(9):1-7.(in Chinese)
[10]高孟潭,韩炜.抗震设计中的大、中、小地震的确定[A].地震工程研究文集[C].北京:地震出版社,1992:28-37.GAO Mengtan,HAN Wei.The evaluation of small,medium and large design earthquake[A].Earthquake Engineering Research[C].Beijing:Earthquake Press,1992:28-37.(in Chinese)
[11]雷建成.攀西地区不同风险水平下基岩地震动参数之间的关系[J].中国地震,2002,18(2):193-202.LEI Jiancheng.The relationship of bedrock seismic ground motion parameters with different exceedance probabilities in Panxi area[J].Earth-quake Research in China,2002,18(2):193-202.(in Chinese)
[12]李金臣,潘华,吴健,等.不同超越概率水平PGA关系研究[J].震灾防御技术,2007,2(2):207-211.LI Jinchen,PAN Hua,WU Jian,et al.Study on relationship beteen peak ground acceleration and different exceeding probability[J].Technologyfor Earthquke Disaster Prevention,2007,2(2):207-211.(in Chinese)
[13]范文,杜文和,王晓军,等.陕西地区地震动衰减关系研究[J].地震工程与工程振动,2011,31(2):47-54.FAN Wen,DU Wenhe,WANG Xiaojun,et al.Seismic motion attenuation relations in Shaanxi areas[J].Journal of Earthquake Engineering andEngineering Vibration,2011,31(2):47-54.(in Chinese)
[2]JTG/T B02-01-2008公路桥梁抗震设计细则[S].JTG/T B02-01-2008 Guidelines for Seismic Design of Highway Bridges[S].(in Chinese)
[3]JTJ004-89公路工程抗震设计规范[S].JTJ 004-89 Specifications of Earthquake Resistant Design for Highway Engineering[S].(in Chinese)
[4]DL5073-2000水工建筑物抗震设计规范[S].DL5073-2000 Specifications for Seismic Design of Hydraulic Structures[S].(in Chinese)
[5]GB50111-2006铁路工程抗震设计规范[S].GB50111-2006 Code for Seismic Design of Railway Engineering[S].(in Chinese)
[6]高小旺,鲍霭斌.地震作用的概率模型及其统计参数[J].地震工程与工程振动,1985,5(1):13-22.GAO Xiaowang,BAO Aibin.Probabilistic model and its statistical parameters for seismic load[J].Journal of Earthquake Engineering and Engi-neering Vibration,1985,5(1):13-22.(in Chinese)
[7]高小旺,鲍霭斌.抗震设防标准及各类建筑物抗震设计中“小震”与“大震”的取值[J].地震工程与工程振动,1989,9(1):58-66.GAO Xiaowang,BAO Aibin.Anti-seismic level and values of“moderate”and“major”earthquakes for various types of building in aseismic design[J].Journal of Earthquake Engineering and Engineering Vibration,1989,9(1):58-66.(in Chinese)
[8]陈家庚,鄢家全,高孟潭,等.论行业抗震设防标准的确定原则和依据[J].中国地震,1998,14(2):173-183.CHEN Jiageng,YAN Jiaquan,GAO Mengtan,et al.Principles and bases for determining the standard of seismic design for different fields[J].Earthquake Research in China,1998,14(2):173-183.(in Chinese)
[9]鄢家全,陈家庚,高孟潭,等.抗震设防地震的概率标定[J].国际地震动态,2000a,(9):1-7.YAN Jiaquan,CHEN Jiageng,Gao Mengtan,et al.Calibration of seismic probability in earthquake resistance[J].Recent Developments in WorldSeismology,2000a,(9):1-7.(in Chinese)
[10]高孟潭,韩炜.抗震设计中的大、中、小地震的确定[A].地震工程研究文集[C].北京:地震出版社,1992:28-37.GAO Mengtan,HAN Wei.The evaluation of small,medium and large design earthquake[A].Earthquake Engineering Research[C].Beijing:Earthquake Press,1992:28-37.(in Chinese)
[11]雷建成.攀西地区不同风险水平下基岩地震动参数之间的关系[J].中国地震,2002,18(2):193-202.LEI Jiancheng.The relationship of bedrock seismic ground motion parameters with different exceedance probabilities in Panxi area[J].Earth-quake Research in China,2002,18(2):193-202.(in Chinese)
[12]李金臣,潘华,吴健,等.不同超越概率水平PGA关系研究[J].震灾防御技术,2007,2(2):207-211.LI Jinchen,PAN Hua,WU Jian,et al.Study on relationship beteen peak ground acceleration and different exceeding probability[J].Technologyfor Earthquke Disaster Prevention,2007,2(2):207-211.(in Chinese)
[13]范文,杜文和,王晓军,等.陕西地区地震动衰减关系研究[J].地震工程与工程振动,2011,31(2):47-54.FAN Wen,DU Wenhe,WANG Xiaojun,et al.Seismic motion attenuation relations in Shaanxi areas[J].Journal of Earthquake Engineering andEngineering Vibration,2011,31(2):47-54.(in Chinese)
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