The direct boundary element method: 2D site effects assessment on laterally varying layered media (methodology)

Álvarez-Rubio, Sonia and Sánchez-Sesma, Francisco José and Benito, Juan Jose and Alarcón Álvarez, Enrique (2004). The direct boundary element method: 2D site effects assessment on laterally varying layered media (methodology). "Soil Dynamics and Earthquake Engineering", v. 24 (n. 2); pp. 167-180. ISSN 0267-7261. https://doi.org/10.1016/j.soildyn.2003.09.003.

Description

Title: The direct boundary element method: 2D site effects assessment on laterally varying layered media (methodology)
Author/s:
  • Álvarez-Rubio, Sonia
  • Sánchez-Sesma, Francisco José
  • Benito, Juan Jose
  • Alarcón Álvarez, Enrique
Item Type: Article
Título de Revista/Publicación: Soil Dynamics and Earthquake Engineering
Date: February 2004
Volume: 24
Subjects:
Freetext Keywords: 2D site effects; Irregular multilayered medium; Direct boundary element method
Faculty: E.U.I.T. Industrial (UPM)
Department: Matemática Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The Direct Boundary Element Method (DBEM) is presented to solve the elastodynamic field equations in 2D, and a complete comprehensive implementation is given. The DBEM is a useful approach to obtain reliable numerical estimates of site effects on seismic ground motion due to irregular geological configurations, both of layering and topography. The method is based on the discretization of the classical Somigliana's elastodynamic representation equation which stems from the reciprocity theorem. This equation is given in terms of the Green's function which is the full-space harmonic steady-state fundamental solution. The formulation permits the treatment of viscoelastic media, therefore site models with intrinsic attenuation can be examined. By means of this approach, the calculation of 2D scattering of seismic waves, due to the incidence of P and SV waves on irregular topographical profiles is performed. Sites such as, canyons, mountains and valleys in irregular multilayered media are computed to test the technique. The obtained transfer functions show excellent agreement with already published results.

More information

Item ID: 15390
DC Identifier: http://oa.upm.es/15390/
OAI Identifier: oai:oa.upm.es:15390
DOI: 10.1016/j.soildyn.2003.09.003
Official URL: http://www.sciencedirect.com/science/article/pii/S0267726103001039
Deposited by: Biblioteca ETSI Industriales
Deposited on: 20 May 2013 09:44
Last Modified: 29 Sep 2015 16:02
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