SIMULATION ANALYSIS OF EARTHQUAKE RECORDS OBSERVED AT A LARGE-SCALE THERMAL POWER STATION IN THE TOTTORIKEN-SEIBU AND GEIYO EARTHQUAKES(Disaster)

Abstract

Earthquake observation system installed at the Takehara Thermal Power Station has been operated since 1983 and many earthquake records have been observed and accumulated. During this period, two large earthquake records were observed in the Tottoriken-Seibu and Geiyo earthquakes. In this paper, the simulation analysis was performed focusing on the nonlinear property of seismic tie connecting building and boiler based on the information obtained by observed data. The vibration model and evaluated major input parameters can well simulate the general feature of response properties of building and boiler both in two earthquakes and verify the vibration model used for the design of this building.