WIT Press

A Boundary Element Method For Viscoelastic Dynamic Earthquake Analysis Of Structures

Price

Free (open access)

Paper DOI

10.2495/ERES960191

Volume

23

Pages

10

Published

1996

Size

685 kb

Author(s)

Y. Liu & H. Antes

Abstract

In seimic hazard evaluation, the dynamic analysis of basic structures is very important and necessary. In fact, it is known that most of the engineering materials have more or less viscoelastic properties which make the response and strength of a structure under earthquake excitation differ from the solutions of pure elastic problems. This paper presents a viscoelastic boundary element method for dynamic analysis of basic structures. Based upon the viscoelastic theory and the boundary integral equation, and after a Laplace transformation, the boundary displacements and tractions can be determined in the Laplace domain. There, the viscoelastic property is represented by a generalized Kelvin model, and the dynamic viscoelastic solutions are obtained by the Durbin's improved inverse Laplace transformation technique. Numerical examples are presented finally. 1. Introductio

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