Abstract
After Hyogo-ken Nanbu Earthquake, level II earthquake motions were considered for the current design code of prestressed concrete tanks. In this study, seismic performance for the side wall of the prestressed concrete tank which was design based on the current code was evaluated using the elasto-plastic seismic response analysis in consideration of the interaction effect between the fluid and the side wall. Then, to devise the simple analytical methods for seismic performance evaluation for the side wall, the accuracy of the responses based on the dynamic analysis in which the effect of the dynamic water pressure was converted to mass element and the equal-energy assumption provided in the current code were verified. Finally, seismic design method of the side wall subjected to level II earthquake motions was examined based on the results obtained by dynamic analysis for tanks with several sectional parameters.
