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Equivalent Fixed-Base Model for Soil-Structure Interaction Analysis

Published online by Cambridge University Press:  05 May 2011

C.-H. Chen  and
S.-Y. Hsu
C.-H. Chen*
Affiliation:
Department of Civil Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
S.-Y. Hsu*
Affiliation:
Department of Civil Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Professor
**Graduate student
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Abstract

This paper is to investigate the effects of Soil-Structure Interaction (SSI) on the dynamic response of a soil-structure system. An ideal model with a simple structure supported on elastic half space is utilized to derive the factor FSSI that can completely represent the effects of SSI. This factor is able to characterize both the change of predominant frequency and damping ratio of the system when compared to the conventional rigid-base type structural analysis. Based on that, an Equivalent Fixed-Base (EFB) model, which takes the effects of SSI into account, can be constructed. The Hualien field test results are then used to verify the applicability of the proposed EFB model.

Keywords

Soil-structure interactionEquivalent fixed-base modelForced vibration testHualien large-scale seismic test
Type
Articles
Information
Journal of Mechanics , Volume 22 , Issue 3 , September 2006 , pp. 167 - 180
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2006

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