Papers abstract:

The seismic performance of storage tanks is a matter of special importance, extending beyond the economic value of the tanks and contents. This has led to attention of many researchers due to the seismic behavior of tanks buried in the soil. Because of the interaction between soil and structure during an earthquake, dynamic analysis of such structures is very important that must be considered. In this paper, according to the interaction effect of soils and structures, under the time history record, seismic behavior of concrete cubic buried tanks has been analyzed using the finite element software ABAQUS. In this process circular and cubic tanks have been studied and the impact of changes in parameters such as earthquake and quantity of water in tanks on pressure on tank’s wall has been studied.

Product Overview:
This tutorial examines the seismic behavior of buried storage tanks, with a focus on the interaction between the tank, soil, and contained water during earthquakes. The effects of seismic loading on cubic and circular buried tanks are investigated using finite element analysis (FEA) and ABAQUS software. Key simulation steps include:

• The complexity of seismic analysis for liquid storage tanks due to fluid-structure interaction is highlighted.
• Simulation of buried tanks is conducted, considering soil-structure interaction (SSI).
• The researchers simulated real earthquake conditions using records from Tabas (Iran, 1978), Northridge (USA, 1994), and Helena (USA, 1935).
• Different scenarios were tested, including fully buried vs. partially buried tanks and full vs. half-full water levels to assess variations in pressure stress and displacement.
• Arbitrary Lagrangian Eulerian (ALE) remeshing method is used in the model.
• The effect of shape of the storage tanks (cubic and circular) on the imposed stress and displacement is investigated.

In this tutorial, the dynamic pressure in buried tanks subjected to seismic loadings simulation results, was reconstructed according to data from the work of Qatari et al.