Influence of Atypical Vehicle Types on Girder Distribution Factors of Secondary Road Steel-Concrete Composite Bridges
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 2
Abstract
This paper investigated the influence of atypical agricultural vehicle parameters on girder distribution factors (GDFs) for two simply supported steel-concrete composite bridges located on secondary roads in the United States. As part of the parametric investigation, field measurements were performed on the bridges under the passage of full-scale agricultural vehicles along each bridge centerline. Strain data obtained from field tests were used to determine field GDFs. Both field data and GDFs were used to calibrate a finite element model of the bridge. Data from over in-use one hundred agricultural vehicles were collected, and then each vehicle was applied to the model to compute analytical GDFs. These vehicles were analytically and statistically investigated to determine the sensitivity of GDFs to vehicle parameters, including maximum vehicle axle load, gage width, and spacing distributions. Based upon field strain investigation for the two bridges, the responses of the central girders were greater than those of the exterior girders, resulting in greater field GDFs for central girders than those of the exterior girders. Results also indicated from the sensitivity study that each girder had different levels of correlation between GDFs and single vehicle parameters.
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Acknowledgments
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2012R1A1A1041521). This research was also partially supported by a pooled fund project sponsored by the Iowa Department of Transportation (DOT), Minnesota DOT, Illinois DOT, Nebraska DOT, Oklahoma DOT, Kansas DOT, Wisconsin DOT, and the USDA Forest Products Laboratory. Many thanks are due to the bridge engineers at the Iowa State University Bridge Engineering Center for their support in field testing.
References
AASHTO. (1996). “Standard specifications for highway bridges.” Washington, DC.
AASHTO. (2010). “LRFD bridge design specifications.” Washington, DC.
BDI 3.0 [Computer software]. Bridge Diagnostics, Boulder, CO.
Cai, C. S., and Shahawy, M. (2004). “Predicted and measured performance of prestressed concrete bridges.” J. Bridge Eng., 4–13.
Eom, J., and Nowak, A. S. (2001). “Live load distribution for steel girder bridges.” J. Bridge Eng., 489–497.
Fanous, F., May, J., and Wipf, T. (2011). “Development of live-load distribution factors for glued-laminated timber girder bridges.” J. Bridge Eng., 179–187.
FHWA. (2011). “Federal highway administration: National bridge inventory.” 〈http://www.fhwa.dot.gov/bridge/nbi/defbr11.cfm〉 (Aug. 20, 2012).
FHWA. (2012). “Federal highway administration: National bridge inventory.” 〈http://www.fhwa.dot.gov/bridge/britab.cfm〉 (Aug. 13, 2013).
Newmark, N. M., Siess, C. P., and Peckham, R. R. (1948). “Studies of slab and beam highway bridges. Part I: Test of simple-span right I-beam bridges.” Bulletin Series No. 375, Engineering Experiment Station, Univ. of Illinois, Urbana, IL.
Nixon, J. (2012). “Richardson county bridge replacement cost revealed.” 〈http://www.mscnews.net/news/index.cfm?nk=12250〉 (Jun. 26, 2012).
Nowak, A. S., Eom, J., Sanli, A., and Till, R. (1999). “Verification of girder-distribution factors for short-span steel girder bridges by field testing.” Transportation Research Record 1688, Transportation Research Board, Washington, DC, 62–67.
Seo, J., Phares, B. M., Lu, P., Wipf, T. J., and Dahlberg, J. (2013). “Bridge rating protocol using ambient trucks through structural health monitoring system.” Eng. Struct., 46, 569–580.
Seo, J., Phares, B. M., and Wipf, T. J. (2014). “Lateral live-load distribution characteristics of simply supported steel girder bridges loaded with implements of husbandry.” J. Bridge Eng., 04013021.
Stachura, S. (2007). “Farm vehicles can be tough on rural roads and bridges.” 〈http://minnesota.publicradio.org/display/web/2007/08/14/ruralbridges/〉 (Jun. 25, 2012).
Stallings, J. M., and Yoo, C. H. (1993). “Tests and ratings of short-span steel bridges.” J. Struct. Eng., 2150–2168.
Westergaard, H. M. (1930). “Computation of stresses in bridge slabs due to wheel loads.” Public Roads, 11, 1–23.
WinGEN. (2012). WinGEN technical manual, Bridge Diagnostics, Boulder, CO.
Yousif, Z., and Hindi, R. (2007). “AASHTO-LRFD live load distribution for beam-and-slab bridges: limitations and applicability.” J. Bridge Eng., 765–773.
Zokaie, T., Osterkamp, T. A., and Imbsen, R. A. (1988). “Distribution of wheel loads on highway bridges.”, Transportation Research Board, Washington, DC.
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Published In
Journal of Performance of Constructed Facilities
Volume 29 • Issue 2 • April 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 7, 2013
Accepted: Dec 20, 2013
Published online: Jul 28, 2014
Discussion open until: Dec 28, 2014
Published in print: Apr 1, 2015
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