Abstract

Some bridges were failed by Tsunami at Great East Japan Earthquake. One of the reasons of the accident was the lack of useful method for evaluating the action of the bridges subjected to Tsunami. 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 Tsunami force applied to the prestressed concrete viaducts. This paper focused on the railway bridges having a large depth of beam compared with the road bridges, and also focused on the shape of Tsunami by controlling the wave period.

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