2018 Volume 64A Pages 250-261
During the 2016 Kumamoto earthquake, a lot of structures including bridges suffered significant damages. This paper presents the damage analysis of Oginosaka horizontally curved bridge which suffered damages at the parapet of an abutment and residual bearing displacement, and also discusses fiber element analyses including deck-abutment pounding interaction to simulate the behavior of the bridge. The ground motions, including permanent displacements, simulated using the stiffness matrix method were applied to each column/abutment in the sumulation. Based on the analytical results, fiber element analysis with pounding could simulate the observed damages; damage of columns was minor while significant failure occured at a parapet wall and a restriction block on the abutment. Also, the residual bearing displacement in longitudinal direction occurred as a result of permanet displacement between two columns.
