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A platform for research: civil engineering, architecture and urbanism
Effect of wave-current interaction on a long fjord-crossing floating pontoon bridge
Highlights A consistent model accounting for the wave-current interaction effect on a floating bridge is presented. The structural responses of the floating bridge are significantly amplified when the waves are travelling on current. When waves and current are propagating in the opposite directions, the effect of current on waves results in reduced responses of the bridge. Superposition of wave and current loads neglecting their interaction is found to induce slightly reduced bridge responses than those subjected to wave loads only.
Abstract Fjord-crossing floating bridges are sophisticated structures subjected to complex environmental loadings including combined action of wave and current. However, the effect of wave-current action is often neglected in a conventional engineering practice. This paper presents a numerical study of the dynamic response of a floating bridge under the combined action of waves and current. The effect of wave-current interaction on the hydrodynamics associated with the bridge pontoons are first evaluated by using a three-dimensional potential flow solver. A model of the entire floating bridge is then established and analysed in the time domain. The accuracy of the model is verified by comparison with available experimental data for a 1 km long curved floating bridge. Parametric studies are subsequently carried out to investigate the effect of wave-current interaction on a 4.6 km long floating bridge model for crossing the Bjørnafjord. Results show that the wave-current interaction has a significant effect on a fjord-crossing floating bridge studied in this paper. Neglection of such an interaction could lead to substantial overestimation or underestimation of the structural responses depending on the environmental headings.
Effect of wave-current interaction on a long fjord-crossing floating pontoon bridge
Highlights A consistent model accounting for the wave-current interaction effect on a floating bridge is presented. The structural responses of the floating bridge are significantly amplified when the waves are travelling on current. When waves and current are propagating in the opposite directions, the effect of current on waves results in reduced responses of the bridge. Superposition of wave and current loads neglecting their interaction is found to induce slightly reduced bridge responses than those subjected to wave loads only.
Abstract Fjord-crossing floating bridges are sophisticated structures subjected to complex environmental loadings including combined action of wave and current. However, the effect of wave-current action is often neglected in a conventional engineering practice. This paper presents a numerical study of the dynamic response of a floating bridge under the combined action of waves and current. The effect of wave-current interaction on the hydrodynamics associated with the bridge pontoons are first evaluated by using a three-dimensional potential flow solver. A model of the entire floating bridge is then established and analysed in the time domain. The accuracy of the model is verified by comparison with available experimental data for a 1 km long curved floating bridge. Parametric studies are subsequently carried out to investigate the effect of wave-current interaction on a 4.6 km long floating bridge model for crossing the Bjørnafjord. Results show that the wave-current interaction has a significant effect on a fjord-crossing floating bridge studied in this paper. Neglection of such an interaction could lead to substantial overestimation or underestimation of the structural responses depending on the environmental headings.
Effect of wave-current interaction on a long fjord-crossing floating pontoon bridge
Dai, Jian (author) / Abrahamsen, Bjørn Christian (author) / Viuff, Thomas (author) / Leira, Bernt Johan (author)
Engineering Structures ; 266
2022-06-11
Article (Journal)
Electronic Resource
English