Abstract
In this study, the applicability of tsunami force estimation formula for a three-dimensional structure such as tsunami evacuation building is discussed. For the different values of blockage ratio, structure interaction with tsunami, generated using dam break scenario, was examined. It was found that the tsunami action mechanisms for both two-dimensional and three-dimensional cases are quite similar and tsunami force acting on the structure reaches its maximum concurrently with the maximum tsunami inundation depth in front of the structure. Further, wave pressure distribution indicated a closer profile to the hydrostatic pressure distribution. The applicability of the suggested formula to estimate the tsunami force acting on a three-dimensional structure is verified.
