Examining the Presence of Arching Action in Edge-Stiffened Bridge Deck Cantilever Overhangs Subjected to a Wheel Load
Publication: Journal of Composites for Construction
Volume 18, Issue 3
Abstract
Engineers have proposed the idea that there may be some arching action present in bridge deck cantilever overhangs stiffened along their longitudinal free edge through a traffic barrier, subjected to a wheel load. This paper includes the details of a full-scale corrosion-free bridge deck with cantilever overhangs stiffened along their longitudinal free edge by a traffic barrier wall that has been constructed and tested under static and fatigue wheel loads at the University of Manitoba. It also reviews experimental test results and postulates various discussions that suggest the presence of arching action in cantilever slab overhangs. The test results indicated static ultimate load capacities significantly greater than the ultimate capacity if the mode of failure and behavior of the cantilever overhang was completely flexural. These early results confirm and indicate the presence of arching action resulting in a significant breakthrough in cantilever behavior when subjected to a wheel load. The theory to account for this arching action is not yet developed, and further research should be conducted.
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References
Canadian Standards Association International. (2006). Canadian highway bridge design code, Toronto, ON.
He, Q., and Mufti, A. (2001). FEMPUNCH—User and theoretical model, ISIS Canada Reasearch Network, Winnipeg, MB.
Klowak, C. (2007). “Static and fatigue behaviour of bridge deck cantilever overhangs subjected to a concentrated load.” M.Sc. thesis, Univ. of Manitoba, Winnipeg, MB.
Klowak, C., Mufti, A., and Bakht, B. (2010). “Investigating arching-action in edge stiffened bridge deck cantilever overhangs subjected to static and fatigue loading.” Proc., 2nd Int. Structures Specialty Conf., CSCE, Winnipeg, MB.
Mufti, A. A., Bakht, B., and Jaeger, L. G. (2008). Recent advances in bridge engineering, JMBT Structures Research, Scarborough, ON.
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© 2013 American Society of Civil Engineers.
History
Received: Mar 7, 2013
Accepted: Jul 24, 2013
Published online: Jul 26, 2013
Discussion open until: Mar 16, 2014
Published in print: Jun 1, 2014
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