地震動予測変数別のリスク解析による地震リスク評価の精度向上の試み

Abstract

Seismic risk analysis consists of seismic hazard analysis and fragility analysis using single index of ground motion intensity. Though the intensity of the index is identical, the responses of buildings may be different due to the difference in earthquake characteristics. Using the single index brings the large error in risk analysis, though it is more convenient than using plural indices or conducting multi-event analysis. This paper proposed the risk analysis method using the ground motion prediction parameter dependent seismic hazard analysis and fragility analysis. The efficiency of the method was proved by the trial application using model site and buildings.