Investigation of the buckling behavior of cylindrical unanchored steel storage tank under near field 3-D seismic loading

Authors

1 university of science and culture

2 Prof., Faculty of Civil Engineering of University of Science and Culture, Tehran, Iran.

3 Building and Housing Research Center

10.22044/jsfm.2025.15901.3957

Abstract

Maintaining the health of oil and other fluid storage tanks after an earthquake is one of the most important points for any earthquake-prone country. By examining the dynamic response of storage tanks in past earthquakes, it can be seen that steel storage tanks are more vulnerable than concrete tanks. Therefore, it is more important to investigate the seismic behavior of steel tanks. In this study, tank and the fluid inside it and interaction between fluid and structure in the ABAQUS software is simulated, to investigate the buckling behavior of an unanchored broad cylindrical steel storage tank built in Malayer. some near field earthquakes records are applied to storage tank. and all three components of these records, have been considered. the radial displacement of wall of the tank after the earthquake indicate the diamond-shaped buckling mode due to the significant effects of slashing. It should also be mentioned that the most deformations are observed at a height of 10.5 meters from the ground level on the wall of the tank, which due to the lower thickness of the sheet in the upper courses of the wall it can be strengthened in order to prevent the leaking of fluid inside the tank.

Keywords

Main Subjects

References

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Journal of Solid and Fluid Mechanics
Volume 15, Issue 3
July and August 2025
Pages 183-198

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