Author:
Zhang Rulin,Chu Shili,Sun Kailai,Zhang Zhongtao,Wang Huaifeng
Abstract
This paper investigates the effect of the multi-directional components of ground motion on an unanchored steel storage tank. Both the liquid sloshing effect and contact behavior between the foundation and tank are included in the study. A three-dimensional model for a foundation–structure–liquid system is numerically simulated using the finite element method. The Lagrange fluid finite element method (FEM) in ANSYS is used to consider the liquid–solid interaction. In the liquid–structure–foundation interaction model, the contact and target elements are adapted to simulate the nonlinear uplift and slip effects between the tank and the foundation. Three earthquake ground motions are selected for evaluating the seismic behavior of the tank. Comparisons are made on the horizontal displacement, “elephant-foot” deformation, stress, base shear and moment, sloshing of the liquid, uplift, as well as slip behavior under the application of the unidirectional, bi-directional and tri-directional components. Under the selected ground motions, the horizontal bi-directional seismic component has great influence on the liquid sloshing in the tank studied in this paper. The vertical seismic component produces high compressive axial stress, and it also makes the uplift and slide of the tank bottom increase significantly. The applicability of this conclusion should be carefully considered when applied to other types of ground motion inputs.
Funder
Shandong Provincial Natural Science Foundation
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference19 articles.
1. Equivalent linear stochastic seismic analysis of cylindrical base-isolated liquid storage tanks
2. Tank damage during the may 1983 coalinga earthquake
3. Dynamic analysis and seismic performance evaluation of above-ground liquid-containing tanks
4. Seismic response analysis of transmission tower-line system under multi-component ground motion excitations;Tian;J. Civ. Environ. Eng.,2013
5. The research of multi-dimensional seismic responses of large span asymmetric spatial structure;Zhang;Earthq. Eng. Eng. Dyn.,2015
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