Numerical Analysis of Seismic Elastomeric Isolation Bearing in the Base-Isolated Buildings

M. Jabbareh Asl, M. M. Rahman, A. Karbakhsh

Department of Civil Engineering, Islamic Azad University, Kerman Branch, Kerman, Iran.
Department of Mechanical Engineering, Universiti Tenaga Nasional, Selangor, Malaysia.

DOI: 10.4236/ojer.2014.31001                

Abstract

Base isolation concept is currently accepted as a new strategy for earthquake resistance structures. According to different types of base isolation devices, laminated rubber bearing which is made by thin layers of steel shims bonded by rubber is one of the most popular devices to reduce the effects of earthquake in the buildings. Laminated rubber bearings should be protected against failure or instability because failure of isolation devices may cause serious damage on the structures. Hence, the prediction of the behaviour of the laminated rubber bearing with different properties is essential in the design of a seismic bearing. In this paper, a finite element modeling of the laminated rubber bearing is presented. The procedures of modeling the rubber bearing with finite element are described. By the comparison of the numerical and the experimental, the validities of modelling and results have been determined. The results of this study perform that there is a good agreement between finite element analysis and experimental results.

Keywords

Base-Isolated Structure; Seismic Isolation Bearing; Laminated Rubber Bearing; Finite Element Analysis

Conflicts of Interest

The authors declare no conflicts of interest.

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