Impedance of foundations using the Boundary Integral Equation Method

Alarcón Álvarez, Enrique and Dominguez Abascal, José (1980). Impedance of foundations using the Boundary Integral Equation Method. In: "2nd. International Symposium on Innovative Numerical Analysis in Applied Engineering Sciences", 16/06/1980-20/06/1980, Montreal (Canadá). ISBN 0-8139-0867-1.

Description

Title: Impedance of foundations using the Boundary Integral Equation Method
Author/s:
  • Alarcón Álvarez, Enrique
  • Dominguez Abascal, José
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2nd. International Symposium on Innovative Numerical Analysis in Applied Engineering Sciences
Event Dates: 16/06/1980-20/06/1980
Event Location: Montreal (Canadá)
Title of Book: Innovative numerical analysis for the engineering sciences
Date: 1980
ISBN: 0-8139-0867-1
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Dynamic soil-structure interaction has been for a long time one of the most fascinating areas for the engineering profession. The building of large alternating machines and their effects on surrounding structures as well as on their own functional behavior, provided the initial impetus; a large amount of experimental research was done,and the results of the Russian and German groups were especially worthwhile. Analytical results by Reissner and Sehkter were reexamined by Quinlan, Sung, et. al., and finally Veletsos presented the first set of reliable results. Since then, the modeling of the homogeneous, elastic halfspace as a equivalent set of springs and dashpots has become an everyday tool in soil engineering practice, especially after the appearance of the fast Fourier transportation algorithm, which makes possible the treatment of the frequency-dependent characteristics of the equivalent elements in a unified fashion with the general method of analysis of the structure. Extensions to the viscoelastic case, as well as to embedded foundations and complicated geometries, have been presented by various authors. In general, they used the finite element method with the well known problems of geometric truncations and the subsequent use of absorbing boundaries. The properties of boundary integral equation methods are, in our opinion, specially well suited to this problem, and several of the previous results have confirmed our opinion. In what follows we present the general features related to steady-state elastodynamics and a series of results showing the splendid results that the BIEM provided. Especially interesting are the outputs obtained through the use of the so-called singular elements, whose description is incorporated at the end of the paper. The reduction in time spent by the computer and the small number of elements needed to simulate realistically the global properties of the halfspace make this procedure one of the most interesting applications of the BIEM.

More information

Item ID: 22572
DC Identifier: http://oa.upm.es/22572/
OAI Identifier: oai:oa.upm.es:22572
Deposited by: Biblioteca ETSI Industriales
Deposited on: 27 Feb 2014 11:02
Last Modified: 22 Sep 2014 11:31
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