AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
Structures
AN EXPERIMENTAL AND ANALYTICAL STUDY ON ULTIMATE PROPERTIES OF SEISMIC RUBBER BEARINGS UNDER HORIZONTAL BIAXIAL LOADING
Hideaki KATOTakahiro MORINobuo MUROTAShigenobu SUZUKIShigeo MINEWAKIMasashi YAMAMOTOHarumi YONEDAMasahiko HIGASHINO
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2010 Volume 16 Issue 32 Pages 167-172

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Abstract
Ultimate properties of seismic isolation rubber bearings under horizontal biaxial loading are investigated with scaled-model testing.
It was observed that the high-damping rubber bearings was twisted by torque generated by damping factor under biaxial deformation, and showed shear-break in smaller shear strain range than in uniaxial loading.
Additionally, finite element analysis (FEM) was conducted to simulate the twisting deformation and local stress and strain. The results showed good agreement with test results, and indicated the possibility of FEM as an effective tool for prediction of failure strain of isolators in biaxial loading.
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© 2010 Architectural Institute of Japan
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