Influence of free field variability on linear soil–structure interaction (SSI) by indirect integral representation
✍ Scribed by E. Savin
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 250 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0098-8847
- DOI
- 10.1002/eqe.214
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✦ Synopsis
Abstract
An integral equation for the representation of the response of a structure impinged by an incident wave field including soil–structure interaction is proposed. It requires the knowledge of the fundamental solution for the overall soil–structure domain when a unit load is applied to the structure. This fundamental solution is obtained by means of a substructuring technique and boundary integral equations using the Green tensors for homogeneous or horizontally stratified soil media. The effects of a non‐stationary modulated random incident field are addressed in terms of the instantaneous power spectral density of the structural response of interest for a given coherency function of the free field. Several applications of the proposed procedure are presented. The first one considers kinematic interaction of a rigid circular foundation and is used to validate the numerical implementation. The second one considers a complex structure on a stiff stratified soil and the last one considers the pounding effect between two adjacent, identical structures resting on a thin soft soil layer. Copyright © 2002 John Wiley & Sons, Ltd.