実大免震建物の振動実験と強震観測

日本建築学会

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  • Vibration tests and earthquake observation on base isolated full scale building

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The purpose of this study is to confirm static and dynamic characteristics of base isolated full scale building. Static loading test, microtremor measurement, free vibration test and earthquake observation are carried out. The results of these tests are used to find out the equivalent stiffness and damping ratio of structure with rubber bearing only, rubber bearing & damper, and compared them with design value or the value by product test. And based on the free-vibration test and mictotremor-vibtration test and earthquake observation record, the amplitude dependency of the dynamic properties such as natural period and damping ratio are exsamined. Also the base isolated effect is confirmed by analyzing the earthquake observation system.

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