Buckling of aboveground storage tanks subjected to storm surge and wave loads
Buckling of aboveground storage tanks subjected to storm surge and wave loads
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风暴潮和波浪荷载作用下地上储罐的屈曲
DOI：
10.1016/j.engstruct.2019.109388
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发表时间：
2019
影响因子：
5.5
通讯作者：
Padgett, Jamie E.
中科院分区：
文献类型：
--
作者：
Bernier, Carl;Padgett, Jamie E.
本研究探讨在飓风事件期间，遭受风暴潮和波浪载荷的地上储罐（ASTs）的屈曲行为，并探讨动力效应对屈曲行为的重要性。首先，计算流体动力学模型的开发，以估计水压力的AST受到波浪载荷。该模型的建模假设也与实验数据进行了验证。接下来，提出了一种方法来执行动态屈曲分析的AST受到浪涌和波浪载荷的适应程序通常用于AST受到风或地震载荷;该方法是说明了一个案例研究AST位于休斯顿船舶通道。为了比较，还进行了静态屈曲分析，以确定动态效应的重要性。最后，采用试验设计原理和回归分析方法，研究了不同AST和加载参数对屈曲行为的影响以及动力效应的相对重要性。结果表明，波浪荷载对风暴潮作用下的ASTs屈曲性能有显著影响，需要予以考虑，而波浪动力效应对ASTs屈曲强度的影响可忽略不计。简单和计算成本低的静态屈曲分析提供了合理的估计，遭受浪涌和波浪的AST。然而，如果目标是评估承受波浪的AST的后屈曲行为，而不仅仅是估计临界载荷，则可能仍然需要进行动力屈曲分析。
This study investigates the buckling behavior of aboveground storage tanks (ASTs) subjected to storm surge and wave loads during hurricane events and explores the importance of dynamic effects on the buckling behavior. First, a computational fluid dynamics model is developed to estimate water pressures on ASTs subjected to wave loads. The modeling assumptions of this model are also validated with experimental data. Next, a methodology is presented to perform dynamic buckling analysis of ASTs subjected to surge and wave loads by adapting procedures commonly used for ASTs subjected to wind or seismic loads; the methodology is illustrated with a case study AST located in the Houston Ship Channel. For comparison, static buckling analyses are also performed to determine the significance of dynamic effects. Lastly, design of experiments principles and regression analyses are employed to investigate the effects of varying AST and loading parameters on the buckling behavior and the relative importance of dynamic effects. Results indicate that wave loads can significantly affect the buckling behavior of ASTs subjected to storm surge and need to be considered, while the dynamic effects induced by waves have a negligible influence on the buckling strength of ASTs. Simpler and computationally inexpensive static buckling analysis provides reasonable estimates for ASTs subjected to surge and waves. However, dynamic buckling analysis might still be required if the objective is to assess the post-buckling behavior of ASTs subjected to waves, rather than only to estimate the critical load.
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影响因子：
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作者：
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DOI：
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发表时间：
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DOI：
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DOI：
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发表时间：
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期刊：
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影响因子：
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作者：
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