Title of article
Seismic Base Isolation of Steel Frame Structure by Hollow Rubber Bearings
Author/Authors
ADNAN, Azlan Universiti Teknologi Malaysia - Faculty of Civil Engineering - Department of Structure and Material, MALAYSIA , TIONG, Patrick Liq Yee Universiti Teknologi Malaysia - Faculty of Civil Engineering - Department of Structure and Material, MALAYSIA , SUNARYATI, Jati Universitas Andalas, Kampus Limau Manis - Faculty of Engineering - Department of Civil Engineering, INDONESIA , GHAZALI, Mohd Zulkifli Mohd Universiti Teknologi Malaysia - Department of Chancellery, MALAYSIA , MALEK, Kamarudin Ab Tun Abdul Razak Research Centre, UK
From page
841
To page
853
Abstract
Effectiveness of rubber bearing in providing seismic base isolation depends very much on the lateral stiffness of these rubber bearing. The competency is increased by lowering the bearing’s horizontal stiffness. This can be easily achieved by either reducing its diameter or increasing its height without compromising the rollout and buckling stability of the rubber bearing. This paper presents shake table testing of fixed base steel frame structure (FBS) in comparison to two identical base-isolated models with solid rubber bearings (BISRB) and hollow rubber bearings (BIHRB), respectively. It is noted the optimum diameter reduction recommended will be 40%. Generally, the seismic performance of BIHRB is superior to both FBS and BISRB, by producing lower floor accelerations and inter-story drifts.
Keywords
seismic , base isolation , rubber bearing , steel frame.
Journal title
Gazi University Journal Of Science
Journal title
Gazi University Journal Of Science
Record number
2600414
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