[HDS11-P04] Seismic vulnerability assessment of residential buildings using probabilistic model of logistic regression and geographic information system (GIS) in Pleret Sub District, southeast part of the Yogyakarta City.
Keywords:Earthquake, Damage pattern, Building vulnerability
The purpose of this study is to generate the probabilistic model of seismic building vulnerability based on the damage data of the Yogyakarta earthquake 2006. By examining the relationship between building characteristics, site conditions, and the damage level based on probabilistic analysis, this study can offer a better knowledge of earthquake damage prediction for residential building in Java.
Based on the statistic model, the most vulnerable building type is the reinforced masonry structure with clay tile roof, it is settled between 8.1-10 km of the epicentre, and it is built on young Merapi volcanic deposits. On the contrary, the safest building type is the houses which have characteristics of reinforced masonry structure, asbestos or zinc roof type and being located in Semilir Formation. The results showed that the building damage probability provided a high accuracy of prediction about 75.81%.