INFLUENCE OF PERFORMANCE VARIATION OF SEISMIC ISOLATION DEVICES DUE TO LONG-PERIOD GROUND MOTION ON RESPONSE CHARACTERISTICS OF BASE ISOLATED BUILDING

－Response evaluation of base isolated building using representative base isolation devices－

Abstract

We performed at a time history response analysis considering the performance fluctuation of the seismic isolation devices for long-period ground motion. In a building model designed against long-period ground motion to correspond only to conventional notice waves, the maximum response displacement of the base isolation layer exceeds the critical strain depending on the long-period area. However, in the model where oil dampers are added to these models, it has been confirmed that the maximum response displacement of the base isolation layer are reduced by the oil damper.