Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coupling effect of wind-wave-undercurrent on cross-sea bridges and flow characteristic around bridges
In the marine environment, some coastal infrastructures, especially the coupling effect of wind, wave, and undercurrent, interfere with cross-sea bridges. In the present paper, the numerical method is utilized to analyze the hydrodynamic pressure attributes on cross-sea bridges and the flow characteristics around the bridge withstand the wind-wave-undercurrent coupling, wind-wave, and wave-only. The results indicate that at the water level near the stationary water surface, the impact of stochastic wind on the pressure of the bridge gradually intensifies. Meanwhile, the wind also increases the frequency of waves passing through the bridge. At the water level above the stationary water surface, the impact of stochastic wind on the pressure of the bridge is the most obvious, improving the impact strength of bridges under wave field and wind field assistance. On the wave-facing surface of the bridge tower-1, bridge tower-2, bridge tower-3 and bridge tower-4, the average pressure of wind-wave-undercurrent coupling has increased compared to the wind-wave coupling and wave-only. Compared with the wave-only, the growth percentage is 9.87%, 15.55%, 70.49%, and 235.13%, respectively; the growth percentage is 11.3%, 22.46%, 62.42%, and 89.54% compared with the wind-wave coupling. The closer to the water surface, the more significant the increase in average pressure and the stronger the influence of wind-wave-undercurrent coupling. Within a certain distance, the undercurrent velocity under the bridge affects the pressure of the bridge.
Coupling effect of wind-wave-undercurrent on cross-sea bridges and flow characteristic around bridges
In the marine environment, some coastal infrastructures, especially the coupling effect of wind, wave, and undercurrent, interfere with cross-sea bridges. In the present paper, the numerical method is utilized to analyze the hydrodynamic pressure attributes on cross-sea bridges and the flow characteristics around the bridge withstand the wind-wave-undercurrent coupling, wind-wave, and wave-only. The results indicate that at the water level near the stationary water surface, the impact of stochastic wind on the pressure of the bridge gradually intensifies. Meanwhile, the wind also increases the frequency of waves passing through the bridge. At the water level above the stationary water surface, the impact of stochastic wind on the pressure of the bridge is the most obvious, improving the impact strength of bridges under wave field and wind field assistance. On the wave-facing surface of the bridge tower-1, bridge tower-2, bridge tower-3 and bridge tower-4, the average pressure of wind-wave-undercurrent coupling has increased compared to the wind-wave coupling and wave-only. Compared with the wave-only, the growth percentage is 9.87%, 15.55%, 70.49%, and 235.13%, respectively; the growth percentage is 11.3%, 22.46%, 62.42%, and 89.54% compared with the wind-wave coupling. The closer to the water surface, the more significant the increase in average pressure and the stronger the influence of wind-wave-undercurrent coupling. Within a certain distance, the undercurrent velocity under the bridge affects the pressure of the bridge.
Coupling effect of wind-wave-undercurrent on cross-sea bridges and flow characteristic around bridges
ABEN
Du, Liming (Autor:in) / Sun, Yichao (Autor:in) / Wang, Gaping (Autor:in) / Bian, Chenjie (Autor:in)
19.03.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Adaptive h-finite element modeling of wind flow around bridges
| Online Contents | 2013
Finite element modelling of flow around bridges
| British Library Conference Proceedings | 1999