Simulation of artificial random field considering the temporal-spatial variation

被引：0
|
作者：
倪永军
朱晞
机构：
来源：
Acta Seismologica Sinica | 2002年 / 04期
关键词：
artificial random field; apparent wave velocity; phase difference spectrum;
D O I：
暂无
中图分类号：
P315.3 [地震波、地震震级、震源物理];
学科分类号：
070801 ;
摘要：
An apparent wave velocity varying with the frequency of seismic wave was adopted rather than an arbitrary one. The phase difference spectrum was introduced to consider the non-stationary properties of frequency contents in simulating artificial random field. The non-stationary random field on hard site considering the temporal-spatial variation was simulated by the way of spectral representation method. This random field can be used as the input of earthquake ground motion of the seismic response analysis of large-span spatial structures considering the effect of multi-supported excitation.
引用
收藏
页码：425 / 430
页数：6
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