11801 Development of Seismic Isolation Table Taking Account of Long-Period Seismic Ground Motions

Abstract

In this paper, the authors have developed a new type of horizontal seismic isolation table which has large effect of vibration isolation for ordinary earthquakes and suppresses the resonance of the isolation system due to long-period ground motions. The seismic isolation table is composed of a table board, X-Y rails, hardening type friction dampers and a baseboard. The effects of the isolation table were confirmed experimentally and numerically.