【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。更多还原

【Abstract】 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.更多还原