AbstractBy carrying out a set of experiments on the responses of vertical concrete/RC walls to tsunami impacts, the characteristics of the responses of concrete/RC walls to tsunami impacts were investigated. Experiments on both the responses of walls to only tsunami wave pressure and those to both tsunami wave pressure and debris collision were carried out. In experiments on the responses only to tsunami wave pressure, flexural failure at the base of the wall was observed when the bending moment at the base of the wall was greater than the predicted cracking moment. In experiments on the responses to both tsunami wave pressure and debris impact, flexural cracks and failure at the base of the wall were observed in some cases, and impulsive oscillations whose frequency immediately after debris collision depended on the debris material were observed.
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