Numerical Modeling of Dynamic Wave Force Acting on Escambia Bay Bridge Deck during Hurricane Ivan
Numerical Modeling of Dynamic Wave Force Acting on Escambia Bay Bridge Deck during Hurricane Ivan
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DOI：
10.1061/(asce)0733-950x(2009)135:4(164
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发表时间：
2009-07
期刊：
影响因子：
--
通讯作者：
W. Huang;H. Xiao
中科院分区：
文献类型：
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作者：
W. Huang;H. Xiao
埃斯坎比亚湾的桥面在2004年伊万飓风的风暴潮中受损。在这项研究中，数值波浪荷载模型的基础上不可压缩的雷诺平均Navier-Stokes方程和k-e方程已被用来研究动态波浪力施加在桥面。该模型采用流体体积法描述动态自由面，能够模拟波浪破碎和波浪与甲板相互作用过程中复杂的不连续自由面。该模型与水平板上托波浪力的实验数据进行了比较，结果令人满意。经验证的模型被应用于调查波力作用在埃斯坎比亚湾的情况下，飓风伊万的桥面。模拟分析了波浪剖面、紊流速度场以及作用在全尺寸桥面上的动上拔力和水平力的时程。结果表明，在伊万飓风风暴潮过程中，最大上升波浪力最大。
Bridge decks in Escambia Bay were damaged during the storm surge of Hurricane Ivan in 2004. In this study, a numerical wave-load model based on the incompressible Reynolds averaged Navier–Stokes equations and k-e equations has been used to investigate dynamic wave forces exerted on the bridge deck. The volume of fluid method is adopted in the model to describe dynamic free surface, which is capable of simulating complex discontinuous free surface during wave breaking and wave-deck interactions. The model was satisfactorily tested against experimental data of uplift wave forces on horizontal plates. The validated model was applied to investigate wave forces acting on the bridge deck in Escambia Bay in the case of Hurricane Ivan. The time history of wave profiles, turbulent velocity fields, and dynamic uplift and horizontal forces acting on the full-scale bridge deck were simulated and analyzed. Results indicate that, during the storm surge event of Hurricane Ivan, the maximum uplifting wave forces were lar...