Development of Fragility Curvcs for Buildings based on Damage Survey Data of Nishinomiya City after the 1995 Hyogoken-Nanbu Earthquake

Abstract

After the 1995 Hyogoken-Nanbu Earthquake, highly valuable data about building damage were obtained by several coordinated damage surveys. In order to improve the accuracy of fragility curves for buildings, it is important to utilize the building damage data from this earthquake. In this paper, the fragility curves for buildings considering detailed characteristics of buildings were constructed based on the damage survey data of Nishinomiya City Govemment compiled for the purpose of property tax reduction. The fragility curves considering the structural type and construction period were developed using the damage data and the estimated distribution of strong motion indices. It was identified that each fragility curve reflects the actual situation of buildinq damage.