Countermeasure of Air Venting Holes in the Bridge Deck–Wave Interaction under Solitary Waves
Countermeasure of Air Venting Holes in the Bridge Deck–Wave Interaction under Solitary Waves
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DOI：
10.1061/(asce)cf.1943-5509.0000937
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发表时间：
2017-02
影响因子：
2.5
通讯作者：
Guoji Xu;C. Cai;Q. Chen
中科院分区：
文献类型：
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作者：
Guoji Xu;C. Cai;Q. Chen
本文讨论了桥面与波浪相互作用的三个基本问题：（1）有无减轻桥面波浪力的措施？(2)对策的工作机制是什么？（3）这种反措施的效力如何？基于这些问题，本文进行了文献综述，并初步确定在桥面板上设置通风孔是桥面-波浪相互作用的一种对策。为了更深入地理解这种对策，本文采用孤立波模型进行了数值模拟。采用剪切应力输运（SST）k-ω模型作为雷诺平均Navier-Stokes（RANS）方程的湍流封闭，考虑了湍流桥面与波浪的相互作用。针对桥面板底部处于静水水位的情况，考虑了6种不同的排气比，详细分析了排气过程的特点，并给出了不同排气比下的排气规律。
AbstractThis paper discusses three fundamental questions on the bridge deck-wave interaction: (1) are there countermeasures to mitigate the wave forces on the bridge decks? (2) what is the working mechanism of the countermeasures? and (3) what is the efficacy of such countermeasures? Motivated by these questions, a literature review is conducted and the air venting holes in the bridge deck slab is preliminarily identified to be a countermeasure for the bridge deck–wave interaction. To reach a deeper understanding of such a countermeasure, a solitary wave model is utilized here to carry on the numerical simulations. The shear stress transport (SST) k-ω model is considered as the turbulence closure for the Reynolds-averaged Navier–Stokes (RANS) equations to account for the turbulent bridge deck-wave interaction. Six different venting ratios for cases that the bottom of the bridge deck is at the still water level (SWL) are considered with detailed analysis of the characteristics of the air venting process, s...