For bridges across wide and deep waterways, fixed foundation structures are not possible to be built due to technical restrictions. Alternatively, pontoon supported floating bridges which do not require fixed foundations can be installed. As the girders of floating bridges may have a low clearance from the sea level, a critical design consideration is the capability of the girder to resist the collision of passing ships. It is hence important to investigate the collision response of the bridge girder and evaluate girder residual strength after the collision. In this paper, finite element (FE) models of a ship deckhouse and a floating bridge girder are established. The girder response to ship deckhouse collision is investigated through integrated numerical simulations. Parametric studies are conducted to compare the girder response for various girder designs and collision scenarios. The residual strength of the girder after in damaged condition is also investigated. Based on the numerical results, a residual strength index (RSI) is proposed for fast prediction of the girder damage level based on the absorbed energy.
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ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5132-6
PROCEEDINGS PAPER
Numerical Investigation of the Collision Damage and Residual Strength of a Floating Bridge Girder
Yanyan Sha,
Yanyan Sha
Norwegian University of Science and Technology, Trondheim, Norway
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Jørgen Amdahl,
Jørgen Amdahl
Norwegian University of Science and Technology, Trondheim, Norway
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Cato Dørum,
Cato Dørum
Norwegian Public Roads Administration, Hamar, Norway
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Zhaolong Yu
Zhaolong Yu
Norwegian University of Science and Technology, Trondheim, Norway
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Yanyan Sha
Norwegian University of Science and Technology, Trondheim, Norway
Jørgen Amdahl
Norwegian University of Science and Technology, Trondheim, Norway
Cato Dørum
Norwegian Public Roads Administration, Hamar, Norway
Zhaolong Yu
Norwegian University of Science and Technology, Trondheim, Norway
Paper No:
OMAE2018-78728, V11AT12A009; 8 pages
Published Online:
September 25, 2018
Citation
Sha, Y, Amdahl, J, Dørum, C, & Yu, Z. "Numerical Investigation of the Collision Damage and Residual Strength of a Floating Bridge Girder." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering. Madrid, Spain. June 17–22, 2018. V11AT12A009. ASME. https://doi.org/10.1115/OMAE2018-78728
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