兵庫県南部地震における大阪府豊中市の地震動特性と被害集中に関する研究

抄録

During the 1995 Hyogo-ken Nanbu earthquake, building damages concentrated in the southern part of Toyonaka city. Most of the damaged buildings were wooden houses. In this study, we evaluate the ground motions to clarify the cause of damages concentration in Toyonaka city. 2D FEM models of the deep underground are analyzed considering irregular structures by Uemachi fault running north-south of Toyonaka. The observed record at the surface near Toyonaka city was used to estimate the input motion. 1D nonlinear analyses of the surface soils are also carried out on the basis of boring data.