A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Component Level–Based Assessment of the Solitary Wave Forces on a Typical Coastal Bridge Deck and the Countermeasure of Air Venting Holes
In this paper, the solitary wave forces on a typical coastal bridge deck are evaluated numerically based on a component level assessment, and the countermeasure of the air venting holes is investigated. At first, a wave model based on the second-order solitary wave theory is presented to represent the incident waves in tsunami events. The shear stress transport (SST) k-ω model is used as the turbulence closure for the Reynolds-averaged Navier-Stokes (RANS) equations. Then, the characteristics of the wave forces (the horizontal force, the vertical force, and the moment) considering three different still-water levels (SWLs) and four wave heights for each SWL are investigated, and the effects of the SWLs and wave heights are demonstrated. In addition, a component level–based assessment of the wave loadings, especially the overturning moment, varying along the wave propagation is conducted to enhance the understanding of the force distribution on the bridge deck. Finally, the countermeasure of the air venting holes with different venting ratios is studied. It is proven that this countermeasure is beneficial in reducing the positive vertical (uplift) force dramatically, but it results in a corresponding increase of the horizontal force. It is hoped that this study will facilitate practicing engineers with an in-depth understanding of the wave force variation in the bridge deck–wave interaction process and shed light on the consideration of adopting this countermeasure in future engineering practices.
Component Level–Based Assessment of the Solitary Wave Forces on a Typical Coastal Bridge Deck and the Countermeasure of Air Venting Holes
In this paper, the solitary wave forces on a typical coastal bridge deck are evaluated numerically based on a component level assessment, and the countermeasure of the air venting holes is investigated. At first, a wave model based on the second-order solitary wave theory is presented to represent the incident waves in tsunami events. The shear stress transport (SST) k-ω model is used as the turbulence closure for the Reynolds-averaged Navier-Stokes (RANS) equations. Then, the characteristics of the wave forces (the horizontal force, the vertical force, and the moment) considering three different still-water levels (SWLs) and four wave heights for each SWL are investigated, and the effects of the SWLs and wave heights are demonstrated. In addition, a component level–based assessment of the wave loadings, especially the overturning moment, varying along the wave propagation is conducted to enhance the understanding of the force distribution on the bridge deck. Finally, the countermeasure of the air venting holes with different venting ratios is studied. It is proven that this countermeasure is beneficial in reducing the positive vertical (uplift) force dramatically, but it results in a corresponding increase of the horizontal force. It is hoped that this study will facilitate practicing engineers with an in-depth understanding of the wave force variation in the bridge deck–wave interaction process and shed light on the consideration of adopting this countermeasure in future engineering practices.
Component Level–Based Assessment of the Solitary Wave Forces on a Typical Coastal Bridge Deck and the Countermeasure of Air Venting Holes
Xu, Guoji (author) / Cai, C. S. (author) / Hu, Peng (author) / Dong, Zhi (author)
2016-03-18
Article (Journal)
Electronic Resource
Unknown
Countermeasure of air venting holes in the bridge deck-wave interaction under solitary waves
| Online Contents | 2017
Countermeasure of Air Venting Holes in the Bridge Deck-Wave Interaction under Solitary Waves
| British Library Online Contents | 2017