Structures Congress 2018
Dynamic Buckling of Aboveground Storage Tanks Subjected to Hurricane-Induced Waves
Publication: Structures Congress 2018: Bridges, Transportation Structures, and Nonbuilding Structures
ABSTRACT
This paper explores the buckling behavior of a typical aboveground storage tank (AST) under wave impacts. A finite element model is first developed and validated against experimental results to determine the hydrodynamic pressure time histories on the AST from hurricane-induced waves; the characteristics of a severe wave impact are derived from numerical simulations of hurricanes in the Houston Ship Channel. The pressure time histories are then applied on a separate finite element model of the AST and its internal liquid, considering geometric and material nonlinearities. Dynamic buckling analyses are performed using the Budiansky-Roth criterion and compared with simpler buckling analysis procedures. This comparison is performed for two different internal liquids, gasoline and crude oil, and three internal liquid heights. Results indicate that the dynamic effects from wave impacts are not significant and could be reasonably omitted to estimate the critical load. Simpler static pressure models and computationally cheaper static buckling analysis methods provide, for practical purposes, an adequate estimate of the buckling strength of the AST. However, dynamic buckling analysis may still be required if the objective is to assess the post-buckling behavior and deformation of an AST under wave impacts, rather than only to estimate the critical load.
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ACKNOWLEDGEMENT
The authors acknowledge the financial support of the National Science Foundation under award #1635784. The contributions of the first author were also supported in part by the Natural Sciences and Engineering Research Council of Canada. The authors also thank Prof. Tayfun Tezduyar for his advice on the FSI modeling of wave impacts. Any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of the sponsors.
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Published In
Structures Congress 2018: Bridges, Transportation Structures, and Nonbuilding Structures
Pages: 530 - 540
Editor: James Gregory Soules, CB&I
ISBN (Online): 978-0-7844-8133-2
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Apr 17, 2018
Published in print: Apr 17, 2018
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