Time-domain BEM for three-dimensional site response analysis of topographic structures

被引：19

作者：

Sohrabi-Bidar, A. ^{[1
]}

Kamalian, M. ^{[2
]}

Jafari, M. K. ^{[2
]}

机构：

[1] Univ Tehran, Univ Coll Sci, Sch Geol, Tehran 1415564155, Iran

[2] Int Inst Earthquake Engn & Seismol, Geotech Engn Res Ctr, Tehran, Iran

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 2009年 / 79卷 / 12期

关键词：

boundary element method; time-domain; three-dimensional; transient elastodynamic kernel; site response analysis; topography effects; wave propagation; BOUNDARY-ELEMENT METHOD; TRANSIENT ELASTODYNAMIC ANALYSIS; PROPAGATING INCIDENT WAVES; RAYLEIGH-WAVES; SEISMIC RESPONSE; DYNAMIC-RESPONSE; FORMULATION; SCATTERING; FOUNDATIONS; DIFFRACTION;

D O I：

10.1002/nme.2619

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a formulation of a time-domain three-dimensional boundary element method for site response analysis of topographic structures. The boundary element algorithm that uses the presented time-convoluted traction kernels is applied to site response analyses of topographic Structures. The seismic responses of canyon and ridge subjected to incident P and S waves are analyzed to demonstrate the accuracy of the kernels and the applicability of the presented boundary element algorithm for site response analysis of topographic structures. Seismic response analyses of three-dimensional Gaussian-shaped ridges show that the three-dimensional axisymmetric ridge has a more amplification potential compared with three-dimensional non-axisymmetric elongated and two-dimensional ridges, if the ridge is impinged by incident waves with wavelength of about the ridge's width. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：1467 / 1492

页数：26

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