Dynamic analysis of underground watertank considering water and structural interaction

Abstract

ABSTRACT

This study analyzes the dynamic behavior of underground water tanks under the loads considering water and structural interactions. The structure of the underground water tank and the water in the tank are discretized by the finite element method with solid and liquid elements,
taking into account the phenomenon of multi-environment interaction. The loads are used as variable frequency harmonic loads. The numerical results show that the water level has a significant effect on the dynamic characteristic of the structure system and dynamic response of water tank interaction under the dynamic loads and almost have more increasing dynamic displacements than others without the effect of the interaction. Therefore, it can be seen that the study has meaning practice, and the water quite agrees to describe the true behaviour of the dynamic response of the system.

Key words: Dynamic Analysis, Underground Water Tanks, Structural Water Interaction, Finite Element Method