考虑地震环境影响的高层建筑设定地震研究
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摘要
以烟台地区一高层建筑为研究对象,结合概率地震危险性分析结果,确定出不同周期下的最大贡献潜源区。再利用震级空间联合概率分布函数以及震级、震中距计算公式计算设定地震震级和震中距,并结合研究区的地震地质背景、发震断裂及其活动性等特征,给出设定地震的具体空间位置。最后根据震级、震中距以及地震动衰减关系确定设定地震反应谱。该方法得到的结果能够直接反映地震危险性,有利于获得考虑地震环境影响的基岩地震动输入参数。此外,还可以为研究区自振周期小于6s的建(构)筑物的抗震设防提供参考依据。
The paper studies scenario earthquakes for high-rise buildings.On the basis of the results of probabilistic seismic hazard analysis,the most contributing potential seismic source zone in different periods of vibration was determined.The magnitude and epicentral distance of scenario earthquake were calculated by using the joint distribution function of magnitude-space and the related formula.And then,based on seismo-geological characteristics,causative faults and seismic activity,the specific spatial location of scenario earthquakes were determined.Finally,according to the magnitude,epicenter distance and attenuation relationship the response spectrum of scenario earthquakes were obtained.The results could directly reflect seismic hazard,and help to get the ground motion parameters of bedrock with the consideration of earthquake environment.The results can also provide some references for seismic fortification of high-rise buildings in different periods of vibration.
The paper studies scenario earthquakes for high-rise buildings.On the basis of the results of probabilistic seismic hazard analysis,the most contributing potential seismic source zone in different periods of vibration was determined.The magnitude and epicentral distance of scenario earthquake were calculated by using the joint distribution function of magnitude-space and the related formula.And then,based on seismo-geological characteristics,causative faults and seismic activity,the specific spatial location of scenario earthquakes were determined.Finally,according to the magnitude,epicenter distance and attenuation relationship the response spectrum of scenario earthquakes were obtained.The results could directly reflect seismic hazard,and help to get the ground motion parameters of bedrock with the consideration of earthquake environment.The results can also provide some references for seismic fortification of high-rise buildings in different periods of vibration.
引文
[1]中国地震局地球物理研究所,2005,地震安全性评价研究与结构抗震研究项目研究报告
[2]中国地震局地球物理研究所,2003,山东核能海水淡化高技术产业化示范工程项目厂址地震调查与评价工作报告
胥广银、高孟潭,1996,潜在震源区内非均匀特性研究,中国地震,12(3),294～299。
胡银磊、张裕明、董瑞树等,1996,中国大陆地震(MS≥6.0)震中与其发震断层距离的统计分析及其在确定潜源区边界中的应用,中国地震,12(2),224～228。
国家质检总局,2001,中国地震动参数区划图(GB18306-2001),北京:中国标准出版社。
陈厚群、李敏、石玉成,2005,基于设定地震的重大工程场地设计反应谱的确定方法,水利学报,36(12),1399～1404。
韩竹君,1997,设定地震及其确定方法研究,博士论文,北京:中国地震局地质研究所。
胡聿贤,1999,地震安全性评价技术教程,北京:地震出版社。
吕悦军,2008,渤海海域地震区划研究,博士论文,北京:中国地质大学(北京)。
中华人民共和国建设部,2010,建筑抗震设计规范(GB50011-2010),北京:中国建筑工业出版社。
Ishikawa Y,Kameda H,1991,Probability based determination of specific scenario earthquake,Proc4th International Conference onSeismic Zonation,2,3～10.
[2]中国地震局地球物理研究所,2003,山东核能海水淡化高技术产业化示范工程项目厂址地震调查与评价工作报告
胥广银、高孟潭,1996,潜在震源区内非均匀特性研究,中国地震,12(3),294～299。
胡银磊、张裕明、董瑞树等,1996,中国大陆地震(MS≥6.0)震中与其发震断层距离的统计分析及其在确定潜源区边界中的应用,中国地震,12(2),224～228。
国家质检总局,2001,中国地震动参数区划图(GB18306-2001),北京:中国标准出版社。
陈厚群、李敏、石玉成,2005,基于设定地震的重大工程场地设计反应谱的确定方法,水利学报,36(12),1399～1404。
韩竹君,1997,设定地震及其确定方法研究,博士论文,北京:中国地震局地质研究所。
胡聿贤,1999,地震安全性评价技术教程,北京:地震出版社。
吕悦军,2008,渤海海域地震区划研究,博士论文,北京:中国地质大学(北京)。
中华人民共和国建设部,2010,建筑抗震设计规范(GB50011-2010),北京:中国建筑工业出版社。
Ishikawa Y,Kameda H,1991,Probability based determination of specific scenario earthquake,Proc4th International Conference onSeismic Zonation,2,3～10.
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