考虑地震环境影响的高层建筑设定地震研究  

Research on scenario earthquakes for high-rise buildings with the consideration of earthquake environment

作　　者：徐丹丹[1] 吕悦军[1] 荣棉水[1] 谢卓娟 张力方[1] 

机构地区：[1]中国地震局地壳应力研究所,北京市海淀区安宁庄路1号100085

出　　处：《中国地震》2012年第3期285-293,共9页Earthquake Research in China

基　　金：中国地震局地壳应力研究所基本科研业务专项(ZDJ2011-14);国家自然科学基金项目(51208474)共同资助

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.

关 键 词：设定地震 反应谱 高层建筑 潜在震源 震级空间联合概率分布函数 

分 类 号：P315[天文地球—地震学]