耐震設計用摩擦系応答スペクトルの実験的検証

概要

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The frictional behaviour is effective for dissipating seismic energy. Therefore, in recent years, the installation of a frictional isolator in industrial facilities has been investigated. However, the seismic response of the friction system is obtained only by non-linear time history analysis. A great deal of time is required for non-linear time history analysis. The present study deals with the easy estimation of seismic response for friction system. In the previous study, the authors proposed a response spectrum for 1-dof system with friction. This paper shows the validity of friction response spectrum by vibration test using the experimental model of 1-dof friction system. The difference of seismic response between numerical and experimental results is sufficiently small. Therefore, the seismic response of a 1-dof friction system can be simply estimated by friction response spectrum.