Analytical solution of hurricane wave forces acting on submerged bridge decks
Analytical solution of hurricane wave forces acting on submerged bridge decks
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DOI：
10.1016/j.oceaneng.2015.08.018
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发表时间：
2015-11
影响因子：
5
通讯作者：
A. Guo;Qinghe Fang;Hui Li
中科院分区：
文献类型：
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作者：
A. Guo;Qinghe Fang;Hui Li
飓风波浪是灾难性的灾害，对间隙不足的沿海桥梁造成破坏。本研究提出一种基于势流法的分析方法来估算飓风作用下作用在水下桥梁上部结构上的波浪力。首先分析了波浪作用下水下桥面的边值问题，利用特征函数匹配法推导了解析解的数学公式。为了验证分析模型的有效性，结果进行了比较，从两个水动力试验的波浪作用的桥梁甲板的测试数据。最后，对AASHTO模型进行了讨论，提出了一种估算最大水平和垂直波浪力的简单方法。分析结果表明，所提出的分析模型可以有效地用于预测飓风波作用下作用在水下桥梁上部结构上的最大波浪力。
Hurricane waves are catastrophic disasters that cause damage to coastal bridges with insufficient clearance. This study presents an analytical method to estimate the wave forces acting on a submerged bridge superstructure during a hurricane based on the potential flow approach. The boundary value problem of the submerged bridge deck under wave action is analyzed first, and the mathematical formula for the analytical solution is derived using the eigenfunction matching method. To validate the effectiveness of the analytical model, results are compared to test data from two hydrodynamic experiments on the wave action of bridge decks. Finally, the AASHTO model is discussed, and a simple method for estimating the maximum horizontal and vertical wave forces is proposed. The analysis results indicate that the proposed analytical model can be used effectively for prediction of the maximum wave forces acting on a submerged bridge superstructure during hurricane waves.