Study on tsunami wave force acting on a bridge superstructure

Abstract

In this study, to clarify properties that tsunami wave force affect bridge superstructure which is generally applied to expressway bridges, waterway experiments and numerical analyses were conducted. In the waterway experiment, some tsunami waves which have maximum 10m height and 6.4m/sec water flow speed in actual scale were generated and characteristics of tsunami wave force acting on standard box-girder bridge were clarified. In the numerical analysis, to reproduce and evaluate results of waterway experiments, CFD (Computational Fluid Dynamics) with VOF method were carried out and applicability of this analysis method was confirmed.