Building Fragility Curves Based on Disaster-Victim Certificate Data of Multiple Local Governments Covering a Wide Range of Seismic Motion in the 2016 Kumamoto Earthquake

Abstract

In this study, we integrated the disaster-victim certificate data by the Mashiki Town government and the Uki City government, Kumamoto Prefecture, due to the 2016 Kumamoto earthquake, and constructed building fragility curves with respect to the structural material and construction period in combination with the estimated seismic ground motion distribution. The correlation coefficient showed a strong positive correlation of around 0.9 in all classifications of the building fragility curves covering a wide range of ground motions. The validity of the proposed fragility curves was demonstrated, compared with the existing fragility curves that were developed for different data sets and different damage category.