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Conference Article: Comparison of computer simulated and observed force deformation characteristics of anti-seismic devices and isolated structures

Bhoje, S.B.; Chellapandi, P.; Chetal, S.; Muralikrishna, R.; Salvaraj, T. (Indira Gandhi Centre for Atomic Research (India))

Abstract

The paper discusses the finite element analysis of the force deformation characteristics of high damping rubber bearings, lead rubber bearings and natural rubber bearings. The dynamic response of structures isolated using bearings is also presented. The general purpose finite element program ABAQUS has been used for the numerical predictions under monotonic loads. For computing the dynamic response, a simplified model of the rubber bearing in the form of elasto-plastic system is used. This equivalent model is implemented using the computer code CASTEM-2000 and the dynamic response is obtained. The numerical results are found to match well with the experimental results.

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key words: bearings; codes; computerized simulation; deformation; dynamic loads; elasticity; finite element method; mechanical structures; plasticity; seismic effects; seismic isolation
Reference:
Final report of a co-ordinated research project 1996-1999
International Atomic Energy Agency, Vienna (Austria)
IAEA-TECDOC--1288, pp:105-130