地震动的空间变化特性分析与修正相干模型

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (2) : 164-170.

论文

地震动的空间变化特性分析与修正相干模型

李英民1 吴哲骞1 陈辉国1,2

作者信息 +

Preliminary study and modelling on characteristics spatially varying ground motion in local site

LI Ying-min1, WU Zhe-qian1 CHEN Hui-guo1,2

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文章历史 +

摘要

利用空间地震动相关性描述度量如相关、相干函数分析地震动在局部尺度内的相关性随空间距离、频率的变化规律。在此基础上，基于随机场基本理论对Harichandran-Vanmarcke模型进行了修正，在原一维模型基础上考虑了空间的二维因素，并通过Smart-1台阵event-40记录给出了模型参数的具体取值。

Abstract

The analysis of muli-point ground motion characteristics with space distance ,frequency is performed.Following a brief review of pertinent results from the second-order theory of random fields ,a new mathematical model is proposed ,as an enhancement on the model of Harichandran-Vanmarcke ,this article take the 2D spatial factor into account .The acclerograms recorded by SMART 1 seismograph array in Lotung Taiwan are used to determine the parameters of the correlation model , Finally the preliminary comparison is made with the Hao model ,it is shown that the proposed model has a excellent performance.

导出引用

李英民吴哲骞陈辉国;. 地震动的空间变化特性分析与修正相干模型[J]. 振动与冲击, 2013, 32(2): 164-170

LI Ying-min;WU Zhe-qian CHEN Hui-guo;. Preliminary study and modelling on characteristics spatially varying ground motion in local site[J]. Journal of Vibration and Shock, 2013, 32(2): 164-170