近斷層強(qiáng)地面運(yùn)動(dòng)影響場(chǎng)顯式有限元數(shù)值模擬之震源運(yùn)動(dòng)學(xué)模型

1、 Kinematic source model in simulating near-fault ground motion field by explicit finite element method Zhang Xiaozhi1,2, Xie Lili2,3,Wang Haiyun3, Hu Jinjun2 (1.Harbin Fenghua-Aerospace Hi-TecH Co.,Ltd., Harbin 150040, China; 2.Institute of Engineering Mechanics, China Earthquake Administration, Har

2、bin 150080, China; 3.School of Civil Engineering Harbin Institute of Technology, Harbin 150001, China Abstract This paper mainly focus on the construction of a kinematic finite fault model, as well as, the summarization on the characteristics and process in simulating near-fault ground motion field

3、by using explicit finite element method. It is concluded that the explicit finite element method or finite difference method is applicable and suitable for the simulation of near-fault ground motion field, while the Greens function method is appropriate for the prediction of time histories of a spec

4、ific site. It also indicates that, as things are, the kinematic finite fault model is relatively better than the dynamic model in modeling earthquakes. Finally, some suggestion was made in an attempt to solve the existing problem that the lack of high frequency components within the slip time function in kinematic model. Key words: strong ground motion field; explicit finite element; numerical simulation;