Study of the Seismic Behavior of the on-ground Bipartite Elliptical Liquid Storage Tanks

مهندسی عمران فردوسی

Volume 34, Issue 1 - Serial Number 33, April 2021, Pages 77-94   

Document Type: Original Article

DOI: 10.22067/jfcei.2021.68556.1015

Authors

Reza Lotfi¹; Masoud Mahmoudabadi^{* 2}; Ehsan Dehghani³

¹Ph.D student of structural engineering, Department of engineering, University of Qom, Qom, Iran

²Assistant Professor of Structural Engineering, University of Qom, Qom, Iran.

³Department of engineering, University of Qom, Qom, Iran

Abstract

The seismic behavior of the on ground bipartite elliptical tanks 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. The monoplete and double on ground elliptical tanks have been dinamically analyzed under Cape and Tabas earthquakes simoultaneously in the longitudinal and transverse directions in various conditions of prolateness and slenderness of the tank and the maximum impulsive pressure and the maximum wave height parameters of corresponding cases have been compared with eachother in the current research. By study of the concluded diagrams, it was revealed that the reduction percent of the maximum impulsive pressure and the maximum wave height parameters due to partitioning of the tank is higher in more slender tanks. It also was revealed that the reduction percent of the maximum impulsive pressure and the maximum wave height parameters due to partitioning of the tank is higher in more prolate tanks.

Keywords

Seismic analysis; Elliptical tank; Tank partitioning; Sloshing mitigation

Supplementary Files

5-Lotfi-Rvised.pdf

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