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| Kinematic source model for simulation of near-fault ground motion field using explicit finite element method | |
| 作者姓名： | 张晓志 胡进军 谢礼立 王海云 |
| 作者单位： | [1]Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China [2]School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China |
| 摘 要： | 1 Introduction The prediction of broadband near-fault ground motion is an important aspect of seismic risk analysis, and is essential for the evaluation of urban seismic safety. Many methodologies are used to model the near-fault ground motions, such as the Green function method, ?nite element (FE) / ?nite difference (FD) method and a hybrid method (Aagaard, 1999; Oprsal and Zahradnik, 2002; Oprsal et al., 2003 a and b). In the hybrid method, the FE / FD method is used to model the low fr… |
| 关 键 词： | 地面运动 有限元分析 数值模拟 地震 |
| 文章编号： | 1671-3664（2006）01-0019-10 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-10-14 |
Kinematic source model for simulation of near-fault ground motion field using explicit finite element method |
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| Xiaozhi Zhang,Jinjun Hu,Lili Xie,Haiyun Wang.Kinematic source model for simulation of near-fault ground motion field using explicit finite element method[J].Earthquake Engineering and Engineering Vibration,2006,5(1):19-28. | |
| Authors: | Xiaozhi Zhang Jinjun Hu Lili Xie Haiyun Wang |
| Institution: | 1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China 2. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China; School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China 3. School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China |
| Abstract: | This paper briefly reviews the characteristics and major processes of the explicit finite element method in modeling the near-fault ground motion field. The emphasis is on the finite element-related problems in the finite fault source modeling. A modified kinematic source model is presented, in which vibration with some high frequency components is introduced into the traditional slip time function to ensure that the source and ground motion include sufficient high frequency components. The model presented is verified through a simple modeling example. It is shown that the predicted near-fault ground motion field exhibits similar characteristics to those observed in strong motion records, such as the hanging wall effect, vertical effect, fling step effect and velocity pulse effect, etc. |
| Keywords: | strong ground motion field explicit finite element numerical simulation kinematic source model |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |