[en] This study reports on the dynamic buckling experiment of a 1/10 reduced scale model of a large-scale cylindrical water storage tank by using a shaking table, and the buckling analysis by using the finite element method. The dynamic buckling experiment is performed by using the reduced scale tank model whose initial imperfection has been measured. The tank model is filled up to 95% with water and then 200 kg of weight is put on top, overcoming the response reduction induced by the oval-type vibration. The sinusoidal waves are used as the input. As a result of the experiment, the buckling occurs on the tank and plastic deformation is observed on the side and bottom of the tank. The static elastic-plastic buckling analysis with the finite element method is conducted. There is an issue of how to treat the dynamic fluid pressure distribution of the contained water in the tank with regard to the static buckling analysis because the coupling between fluid and structure cannot be taken into consideration. In this study, the distribution of the dynamic fluid pressure is calculated in accordance with the Fischer's method. The buckling load calculated by using the dynamic fluid pressure distribution almost perfectly agrees with that of the experiment. Therefore, it is appropriate to apply this proposed static elastic-plastic buckling analytical method to seismic design. (author)