Study of Fluid Force Generated at Railway Concrete Bridges Subjected to Uniform Flow

Abstract

Some bridges have been failed by Tsunami and river flood in Japan. One of the reasons of the damage was the lack of useful method for evaluating the action of the bridges subjected to the water flow. This means that there was no verification of the bridges caused by Tsunami. The authors have conducted experiments and numerical analysis in order to understand the effect of bridge properties: the cross-section shape of beam, velocity of water, height under the beam, and the existing of gird wall, on the force applied to the beam by water flow. This paper focused on the railway bridges having large depth of beam compared with the road bridges, and uniformed flow of water.