Hydrodynamic Uplift Forces on Submerged Bridge Decks during Bedform Migration
Publication: Journal of Hydraulic Engineering
Volume 148, Issue 9
Abstract
Hydrodynamic forces, especially uplift forces, during a flood event are critical to the stability of bridge superstructures. This study focuses on the interaction between the migrating dunes, the scour depth beneath the deck, and the uplift force that fluctuates during bedform migration. Experimental results show that the fluctuation of uplift forces is closely related to the arrival of dune crests and troughs, which periodically alter the approach flow behavior. The fluctuation becomes particularly apparent for partially submerged decks, for which the intermittent overtopping phenomenon plays an essential role in producing vertical forces with varying directions. In contrast to previous studies using fixed plane beds, positive uplift forces may occur in this study for some partially submerged decks, which poses an additional risk to the superstructure. New lift coefficient equations are proposed to take the effect of migrating dunes into consideration and enhance the safety margin in design for highly dynamic fluvial environments.
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Data Availability Statement
All data obtained in this study are available from the corresponding author upon reasonable request.
Acknowledgments
The first author would like to acknowledge the support of the joint scholarship from the China Scholarship Council (CSC) and The University of Auckland.
References
Arneson, L. A., and S. R. Abt. 1998. “Vertical contraction scour at bridges with water flowing under pressure conditions.” Transp. Res. Rec. 1647 (1): 10–17. https://doi.org/10.3141/1647-02.
Azadbakht, M., and S. C. Yim. 2016. “Effect of trapped air on wave forces on coastal bridge superstructures.” J. Ocean Eng. Mar. Energy 2 (2): 139–158. https://doi.org/10.1007/s40722-016-0043-9.
Buck, J. R., M. M. Daniel, and A. C. Singer. 1997. Computer explorations in signals and systems using MATLAB. Upper Saddle River, NJ: Prentice-Hall.
Dean, M. T. 2020. “Laboratory study of hydrodynamics of submerged bridges.” Master’s dissertation, Dept. of Civil Engineering, The Univ. of Texas at Arlington.
Durmus, A. 2016. “Flood disaster resilient bridge structures for sustainable bridge management systems.” Ph.D. thesis, Dept. of Civil Engineering, Univ. of Mississippi.
Guan, D., B. W. Melville, and H. Friedrich. 2015. “Live-bed scour at submerged weirs.” J. Hydraul. Eng. 141 (2): 04014071. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000954.
Guo, J., K. Kerenyi, and J. E. Pagan-Ortiz. 2009. The bridge pressure flow scour for clear water conditions. McLean, VA: Turner-Fairbank Highway Research Center.
Jempson, M. A. 2000. “Flood and debris loads on bridges.” Ph.D. thesis, Dept. of Civil Engineering, The Univ. of Queensland.
Kerenyi, K., T. Sofu, and J. Guo. 2009. Hydrodynamic forces on inundated bridge decks. McLean, VA: Turner-Fairbank Highway Research Center.
Lyn, D. A. 2008. “Pressure-flow scour: A re-examination of the HEC-18 equation.” J. Hydraul. Eng. 134 (7): 1015–1020. https://doi.org/10.1061/(ASCE)0733-9429(2008)134:7(1015).
Seiffert, B. R., R. Cengiz Ertekin, and I. N. Robertson. 2016. “Effect of entrapped air on solitary wave forces on a coastal bridge deck with girders.” J. Bridge Eng. 21 (2): 04015036. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000799.
Shan, H., C. B. Zhaoding Xie, O. Suaznabar, J. S. Steven Lottes, and K. Kerenyi. 2012. Submerged flow bridge scour under clear water conditions. McLean, VA: USDOT.
Turner, D. 2015. “Fragility assessment of bridge superstructures under hydrodynamic forces.” Master’s dissertation, Dept. of Civil and Environmental Engineering, Colorado State Univ.
Umbrell, E. R., G. K. Young, S. M. Stein, and J. S. Jones. 1998. “Clear-water contraction scour under bridges in pressure flow.” J. Hydraul. Eng. 124 (2): 236–240. https://doi.org/10.1061/(ASCE)0733-9429(1998)124:2(236).
USGS. 1997. “Flooding of the Sorlie Bridge.” Accessed June 4, 2022. https://www.usgs.gov/media/images/flooding-sorlie-bridge.
USGS. 2008. “Flooded bridge on the St. John River.” Accessed June 4, 2022. https://www.usgs.gov/media/images/flooded-bridge-st-john-river.
USGS. 2010. “September 2009 Flooding: Peachtree Creek at Northside Drive at Atlanta.” Accessed June 4, 2022. https://www2.usgs.gov/water/southatlantic/ga/flood/flooding-sept09/images/02336300/.
Van Rijn, L. C. 1984. “Sediment transport, part III: Bed forms and alluvial roughness.” J. Hydraul. Eng. 110 (12): 1733–1754. https://doi.org/10.1061/(ASCE)0733-9429(1984)110:12(1733).
Wang, L., B. W. Melville, and D. Guan. 2018. “Effects of upstream weir slope on local scour at submerged weirs.” J. Hydraul. Eng. 144 (3): 04018002. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001431.
Yang, Y., B. W. Melville, D. M. Sheppard, and A. Y. Shamseldin. 2019. “Live-bed scour at wide and long-skewed bridge piers in comparatively shallow water.” J. Hydraul. Eng. 145 (5): 1–8. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001600.
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Published In
Journal of Hydraulic Engineering
Volume 148 • Issue 9 • September 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Dec 1, 2021
Accepted: May 9, 2022
Published online: Jun 28, 2022
Published in print: Sep 1, 2022
Discussion open until: Nov 28, 2022
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