Tsunami evacuation building is an important countermeasure in saving lives from tsunami inundation in coastal area. In the design of tsunami evacuation building, it is important to evaluate its stability against tsunami impact. However, openings like windows or pilotis may affect the tsunami force significantly and therefore it is important to discuss the effect of space configuration of the buildings on acting tsunami force. In this study, hydraulic model experiments and numerical simulation

more »

... ve been conducted to investigate on that aspect. Results show that spatial configuration of the building affects the total tsunami force acting on the structure. Numerical results also provided a good estimation of pressure distribution which agrees with experimental results.