Load-Rating Procedures and Performance Evaluation of Metal Culverts
Publication: Journal of Bridge Engineering
Volume 17, Issue 1
Abstract
Load-rating factors are used to evaluate the service life or safety of culverts based on the culvert wall strength and soil cover depth over the culvert. Current culvert load-rating methods have deficiencies in identifying potential critical conditions of corrugated metal culverts. Current load-rating procedures do not provide explicit guidance to the engineer for load rating and evaluation of culvert condition. To ensure good performance over the design life, corrugated metal culverts must be designed and regularly evaluated using an effective load-rating method. The main objective of this study was to investigate the effectiveness of current load-rating procedures. Recommendations are made to improve the analysis and evaluation procedures for corrugated metal culverts. The proposed load-rating procedure is based on an extensive review of load-rating procedures and design practices, experimental data, and theoretical investigations. The proposed method does not include a rating factor for cover depth. However, the design cover depth is required to be checked during the initial design stage to ensure structural stability. New capacity reduction factors are introduced for culvert wall and seam, which require different appraisals for wall and seam during annual inspections. The effect of external live loads is not included in the proposed load-rating procedure for deep culverts and for culverts subjected to low live load stresses. Field data from 39 in-service culverts showed that the proposed load-rating procedure is effective in evaluation of the existing condition of culverts.
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Acknowledgments
Funding for this research was provided by the Ohio Department of Transportation (ORDOTODOT) and is gratefully acknowledged. The writers thank the ODOT Office of Structural Engineering and, in particular, technical liaisons Amjad Waheed, P.E., and Bill Krouse, P.E., for their assistance with the project.
References
AASHTO. (1994). Manual for condition evaluation of bridges, Washington, DC.
AASHTO. (2002). Standard specifications for highway bridges, 17th Ed., Washington, DC.
AASHTO. (2010). AASHTO LRFD bridge design specifications, Washington, DC.
Akgül, F., and Frangopol, D. M. (2004). “Bridge rating and reliability correlation: Comprehensive study for different bridge types.” J. Struct. Eng., 130(7), 1063–1074.
American Iron and Steel Institute (AISI). (1994). Handbook of steel drainage & highway construction products, 5th Ed., Washington, DC.
Bellair, P. J., and Ewing, J. P. (1984). “Metal-loss rates of uncoated steel and aluminum culverts in New York.” Research Rep. 115, Engineering Research and Development Bureau, New York State Dept. of Transportation, New York.
Cowherd, D. C., and Degler, G. H. (1986). “Installation inspection procedures for long-span corrugated metal structures.” Bower-Morner, Inc., Dayton, OH.
Degler, G. H., Cowherd, D. C., and Hurd, J. O. (1988). “An analysis of visual field inspection data of 900 pipe-arch structures.” Transportation Research Record 1191, Transportation Research Board, Washington, DC, 47–56.
Duane, J., Robinson, R., and Moore, C. A. (1986). “Culvert-soil interaction finite element analysis.” J. Transp. Eng., 112(3), 250–263.
Duncan, J. M., and Drawsky, R. H. (1983). “Design procedures for flexible metal culvert structures.” Rep. No. UCB/GT/83-04, Univ. of California, Berkeley, CA.
Moore, I. O. (1989). “Elastic buckling of buried flexible tubes—A review of theory and experiment.” J. Geotech. Eng., 115(3), 340–358.
National Cooperative Highway Research Program (NCHRP). (1998). “Service life of drainage pipe.” NCHRP Rep. 254, Transportation Research Board, National Academy Press, Washington, DC.
National Cooperative Highway Research Program (NCHRP). (2008). “Modernize and upgrade CANDE for analysis and LRFD design of buried structures.” NCHRP Rep. 619, Transportation Research Board, National Academy Press, Washington, DC.
National Corrugated Steel Pipe Association (NCSPA). (1995). “Load rating and structural evaluation of in-service, corrugated steel structures.” Design Sheet No. 19, Washington, DC, 1–12.
Potter, J. C., Lewandowsky, L., and White, D. W., Jr. (1991). “Durability of special coatings for corrugated steep pipe.” U.S. Army Waterways Experiment Station, FHWA-91-FLP-006, Geotechnical Laboratory, Vicksburg, MO.
Sezen, H., Yeau, K., and Fox, P. J. (2008). “In-situ load testing of corrugated steel pipe-arch culverts.” J. Perform. Constr. Facil., 22(4), 245–252.
Spangler, M. G. (1941). “The structural design of flexible pipe culverts.” Bulletin No. 153, Iowa State College Engineering Experimental Station, Ames, IA.
Timoshenko, S. P., and Gere, J. M. (1961). Theory of elastic stability, McGraw-Hill, New York.
Watkins, R. K., and Anderson, L. R. (1999). Structural mechanics of buried pipes, CRC Press, Boca Raton, FL.
White, H. L., and Layer, J. P. (1960). “The corrugated metal conduit as a compression ring.” Highway Research Board Proceedings, Highway Research Board, Washington, DC, 39, 389–397.
Yeau, K. (2010). “Experimental, analytical, and theoretical investigation of corrugated metal culvert behavior.” Ph.D. dissertation, The Ohio State Univ., Columbus, OH.
Yeau, K., Sezen, H., and Fox, P. J. (2008). “Performance of existing corrugated metal culverts under live load application.” Transportation Research Record 687, Transportation Research Board, Washington, DC.
Yeau, K., Sezen, H., and Fox, P. J. (2009). “Load performance of in situ corrugated steel highway culverts.” J. Perform. Constr. Facil., 23(1), 32–39.
Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 17 • Issue 1 • January 2012
Pages: 71 - 80
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jul 15, 2010
Accepted: Dec 22, 2010
Published online: May 12, 2011
Published in print: Jan 1, 2012
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