摘要
基于GB 50011—2001建筑抗震设计规范划分的4类场地,设计了115个一维成层场地,计算模型用场地地震反应分析的等效线性化波动分析方法,对场地地震反应进行了计算,找出了4类分类场地条件对场地地震动影响的特点及规律。得出对于Ⅲ类、Ⅳ类场地,当计算基底输入幅值较大时,地震动长周期成分十分丰富,短周期成分少的结论。
115 1-D layered site models are designed by the 4 site categories based on GB 50011-2001 code for seismic design of building. Site seismic responses are calculated by using equivalent linearization wave motion method ,and the features and law of the influence of site condition of 4 site categories on the earthquake ground motion are summarized . It is concluded that for the sites of class Ⅲ and Ⅳ , the long period components are very rich and the short period （high frequency）components are very lack when the input seismic motions are very large.
出处
《山西地震》
2005年第4期27-33,共7页
Earthquake Research in Shanxi
关键词
地震反应
地震动输入
反应谱
场地条件
Seismic response
Seismic motion input
Response spectrum
Site condition
