Abstract
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. In the present paper, the easy estimation of seismic respose for a 2-dof friction system based on a friction response spectrum and modal analysis method are proposed. Moreover, the applicable range of the proposed method is clarified by comparison with the result of non-linear time history analysis. The proposed method can obtain the seismic response of a 2-dof friction system immediately without non-linear time history analysis.
