Seismic analysis of a ground-supported cylindrical liquid storage tank is presented in this thesis. The study focuses on the investigation of the effect of the flexibility of the tank wall as well as the sloshing behavior of the contained liquid.
The tank structure is modelled using finite element, so called ring elements. The motion of the liquid is obtained by solving Laplace equation. Equation of motion is formulated including the coupling between the shell motion and the sloshing motion. Dynamic analysis is carried out utilizing the time history method as well as the response spectra method. Numerical analysis have been performed on several tanks with different structural dimensions.
