2007年新潟県中越沖地震における柏崎市の建物被害分析

抄録

This study investigates the building damage in Kashiwazaki city due to the 2007 Niigata-Ken Chuetsu-Oki earthquake. Most building fragility functions, used for damage estimation in scenario earthquakes, were developed based on the data from the 1995 Hyougoken-Nanbu earthquake. However, already sixteen years have passed after this event, and hence it is better to employ recent earthquake data. In this study, the damage ratios of buildings are investigated from the view points of structural material and the construction period. The obtained damage ratios are compared with recorded PGV values and the empirical fragility function from the Hyogoken-Nanbu earthquake.