More than 800 base-isolated buildings have already been constructed in Japan, and the most of them use laminated rubber bearings. Recently, the application of the seismic isolation technology is spreading to very tall buildings. But when a strong earthquake attack the tall building with seismic isolation, there may happen that the columns at outside of the building are pulled up. Consequently, the research for the characteristics of laminated rubber bearings subjected to tensile load is now focused. Therefore, in this study tensile tests are planned to investigate the effect of the thickness of flange plates on the mechanical characteristics and the scale effect.
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