REPRODUCTION SIMULATION AND DAMAGE PREDICTION BY EARTHQUAKE DAMAGE SIMULATIONS IN EXPRESSWAY NETWORK

Abstract

 Earthquake damage simulations in expressway network targeted major earthquakes in the future has been researched in Hanshin Expressway. This simulation target all Hanshin Expressway route. So, it can evaluate the bridge damage conditions in route units or span units. If damaged piers can be predicted by the earthquake damage simulation, it is possible to clarify the piers where we should conduct the seismic reinforcement. In addition, if amount of step displacement on the road surface can be predicted, it is possible to clarify the places where we should prepare equipment to eliminate the steps.

 In this study, 1995 Kobe earthquake was tried to reproduce by using this earthquake damage simulation to verify this simulation accuracy. As a result, the damage dispersion of the actual structures at 1995 Kobe earthquake and this reproduction simulation were coincided. Therefore, this simulation was confirmed the accuracy.

 In addition, earthquake damage simulations targeted various epicenter were conducted, such as Nankai.Trough earthquake and Uemachi earthquake. It was clarified that this simulation system is possible to evaluate pier damages and the amount of step displacement before earthquakes.