Abstract
This study is aimed at evaluating the variation of maximum response of target tanks and piping systems subjected to the artificial earthquake motions in industrial facilities.In the seismic design criteria for high-pressure gas equipment,these structures did not take into account the plastic deformation until it was revised in 1997.However,from the viewpoint of safety of these facilities during earthquakes,the seismic design considering the elasto-plastic response is also required.In this study,based on the target response spectra which are defined in the seismic design criteria,ground characteristics a target response spectrum,the artificial earthquake motions are simulated with the envelope function representing the non-stationarity of the earthquake motion.These earthquake motions are subjected to the SDOF system having the bilinear restoring force and then the effects of ground characteristics and main duration of motion on the variation of the maximum responses are examined.
