Vertical Isolation of Seismic Loads in Aboveground Liquid Storage Tanks

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Moeini Morteza; Nikomanesh Mohammad Reza; GOUDARZI MOHAMMAD ALI

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Journal: Journal of Seismology and Earthquake Engineering Year:2019 | Volume:21 | Issue:1 Page(s): 45-53

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Information Journal Paper

Title

Vertical Isolation of Seismic Loads in Aboveground Liquid Storage Tanks

Author(s)

Moeini Morteza | Nikomanesh Mohammad Reza | GOUDARZI MOHAMMAD ALI | Issue Writer Certificate

Keywords

Liquid storage tankQ4

Isolating systemQ4

FEMQ4

Seismic designQ4

SloshingQ4

Abstract

This paper introduces an improved isolation system for aboveground storage tanks (ASTs). In this system, the tank shell is supported by a ring of vertical isolation systems (VIS) that dampen the rocking motion of the tank shell caused by dynamic loads. On the other hand, the forces in the vertical direction caused by the overturning moment are isolated as an alternative to the common horizontal system used for shear base isolation of ASTs. The effects of the proposed vertical isolation system on the seismic responses of the contained liquid are examined using various tank dimensions and earthquake ground motions. The finite element model (taking into account fluid-structure interaction effects) is used to simulate the contained liquid, as well as the tank shell. The results indicate that the new system could efficiently reduce the main Seismic design parameters of the tanks, including base shear, overturning moment, and seismic stress in the tank shell. The Sloshing wave height, however, is not significantly affected.

Cites

GHAENAT EARTHQUAKE - MAY 1997

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APA: Copy

Moeini, Morteza, Nikomanesh, Mohammad Reza, & GOUDARZI, MOHAMMAD ALI. (2019). Vertical Isolation of Seismic Loads in Aboveground Liquid Storage Tanks. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, 21(1), 45-53. SID. https://sid.ir/paper/112316/en

Vancouver: Copy

Moeini Morteza, Nikomanesh Mohammad Reza, GOUDARZI MOHAMMAD ALI. Vertical Isolation of Seismic Loads in Aboveground Liquid Storage Tanks. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING[Internet]. 2019;21(1):45-53. Available from: https://sid.ir/paper/112316/en

IEEE: Copy

Morteza Moeini, Mohammad Reza Nikomanesh, and MOHAMMAD ALI GOUDARZI, “Vertical Isolation of Seismic Loads in Aboveground Liquid Storage Tanks,” JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, vol. 21, no. 1, pp. 45–53, 2019, [Online]. Available: https://sid.ir/paper/112316/en

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