In my master thesis we did seismic analysis of a steel cylindrical liquid storage tank
according to the Eurocode standards. We used procedures suggested in the standard for
evaluating seismic effects on the structure. Eurocode standard explains the procedure for
seismic analysis in details in the draft version of the Eurocode 8; Part 4: Silos, tanks and
pipelines. We checked the background of the suggested equations in the standard. We
derived the Laplace differential equation, which is used for solving hydrodynamic pressures.
Further we explain and show the boundary conditions of the Laplace equation for solving
With procedures in the standard we get pressures, which are acting on the wall and the
bottom plate of the storage tank. We use the evaluated pressures for numerical analysis of
the storage tank. Analysis was carried out in the software Abaqus. We tried to figure out how
does the storage tank behaves under seismic activity. At the end we show the deformed
shape of the storage tank under seismic load.