UNDERSTANDING OF DAMAGE FUNCTIONS WITH A FRAGILITY MODEL AND THEIR UTILIZATION(Disaster)

Abstract

Several Seismic damage ratio functions have been developed with the data of the Hyogoken Nanbu Earthquake. As fragility functions represent the damage probability of individual building, damage functions are understood as the integration of fragility functions. An engineering fragility model based on the one that has been developed in PRA procedure for nuclear power plants is employed. Appropriate uncertainties are defined and evaluated to integrate fragilities to damage functions. An acceptable fragility model is identified which is consistent with the damage functions. Applying this model with future conditions, an effective damage prediction will be performed.