Investigation of the effect ofliquid tanks shape on their seismic behavior considering fluid – structure and soil – structure interactions

Document Type : Original Article

Authors

1 Department of engineering, University of Qom,, Iran

2 Assistant Professor, Department of Civil Engineering, Faculty of Technology and the University of Qom, Qom, Iran

3 Assistant Professor, department of Civil Engineering, Qom University, Qom, Iran

Abstract

The effect of liquid tanks shape on their seismic behavior considering fluid – structure and soil – structure interactions has been investigated in the current study. Basically, the tank is a structure used to store different types of fluid, and it is also widely used in refineries, sewage treatment plants and factories in the form of on ground and elevated tanks made from concrete and steel. Regarding the application of the huge dynamic and hydrodynamic loads on a tank at the time of earthquake and the great importance of the structure’s complete function continuity in the critical situations, it is highly important to study its seismic behavior. Among the different analyses, the seismic analysis of the tank is highly important because by investigating the results obtained from this analysis, a useful recognition of the quality of the tank’s behavior at the time of a real earthquake can be obtained. The equivalent rectangular and diamond and ellipticalburiedliquid tanks have been dinamicallyanalyzedunder Elcentro andManjil and Cape earthquakes simoultaneously in the longitudinal and transverse directions and the variousseismicparametersof the system such as thewave maximum height,wallmaximumdrift,concrete maximum tensile stresses and soil maximum compressive stress have been compared with eachother in above mentioned cases in the current research. By study of the computed results of current research, it was revealed that the liquid tanks shape has a considerable effecton their seismic behavior in the same conditions. It also was revealed that the effecttype of variousshapes is not same on the various seismic parameters.

Keywords

Main Subjects

References

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History

  • Receive Date: 15 December 2020
  • Revise Date: 24 February 2021
  • Accept Date: 30 September 2021

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