Strengthening of Reinforced Concrete Bridge Decks Using Carbon Fiber-Reinforced Polymer Composite Materials
Publication: Journal of Bridge Engineering
Volume 13, Issue 5
Abstract
This paper presents the results of an investigation of the monotonic and fatigue behavior of one-way and two-way reinforced concrete slabs strengthened with carbon fiber-reinforced polymer (CFRP) materials. The five one-way slab specimens were removed from a decommissioned bridge in South Carolina. Three of the slabs were retrofitted with CFRP strips bonded to their soffits and the other two served as unretrofit, control specimens. Of the five one-way slab specimens, one unretrofit and two retrofit slabs were tested monotonically until failure. The remaining two specimens, one unretrofit and one retrofit, were tested under cyclic (fatigue) loading until failure. In addition, six half-scale, two-way slab specimens were constructed to represent a full-scale prototype of a highway bridge deck designed using the empirical requirements of the AASHTO LRFD Bridge Design Manual. Of the six square slabs, two were unretrofitted and served as the control specimens, two were retrofitted using CFRP strips bonded to their soffits making a grid pattern, and two were retrofitted with a preformed CFRP grid material bonded to their soffit. Three slabs, one unretrofit, one CFRP strip, and one CFRP grid retrofitted, were tested monotonically until failure and the remaining three slabs were tested under cyclic (fatigue) loading until failure.
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References
American Association of State Highway Transportation Officials (AASHTO). (1996). Standard specifications of highway bridges, 16th Ed., Washington, D.C.
American Association of State Highway Transportation Officials (AASHTO). (2004). LRFD bridge design manual, 3rd Ed., Washington, D.C.
American Concrete Institute (ACI). (2002). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” ACI440.2R-02, Committee 440, Farmington Hills, Mich.
American Concrete Institute (ACI). (2005). “Building code requirements for structural concrete and commentary.” ACI318-05, Committee 318, Farmington Hills, Mich.
Arockiasamy, M., Sowrirajan, R., Shahawy, M., and Beitelman, T. E. (1995). “Repair of damaged pretensioned solid slab using CFRP laminates.” Nonmetallic (FRP) reinforcement for concrete structures, E & FN Spon, London, 492–500.
Canadian Standards Associations (CSA). (2006). S6-06 Canadian highway bridge design code, Rexdale, Ont., Canada.
Collins, P. M., and Mitchell, D. (1991). Prestressed concrete structures, Prentice–Hall, Englewood Cliffs, N.J.
Erki, M. A., and Heffernan, P. J. (1995). “Reinforced concrete slabs externally strengthened with fibre-reinforced plastic materials.” Nonmetallic (FRP) reinforcement for concrete structures, E & FN Spon, London, 509–516.
Ichimasu, H., Maruyama, M., Watanbe, H., and Hirose, T. (1993). “RC slabs strengthened by bonded carbon FRP plates: Part 1—Laboratory study.” Fiber-Reinforced-Plastic Reinforcement for Concrete Construction: International Symposium, American Concrete Institute, Detroit, 933–955.
Karbhari, V. M. (2001). “Materials considerations in FRP rehabilitation of concrete structures.” J. Mater. Civ. Eng., 13(2), 90–97.
Lopez-Anido, R. (2001). Life-cycle cost survey of concrete bridge decks—A benchmark for FRP bridge deck replacement, Transportation Research Board, Washington, D.C.
MacGregor, J. G. (1997). Reinforced concrete: Mechanics and design, 3rd Ed., Prentice-Hall, Englewood Cliffs, N.J., 79–80, 368–369.
Mosallam, A. S., and Mosalam, K. M. (2003). “Strengthening of two-way concrete slabs with FRP composite laminates.” Construction and building materials, Vol. 17, Elsevier Science Ltd., Amsterdam, The Netherlands, 43–54.
Nanni, A. (1995). “Concrete repair with externally bonded FRP reinforcement.” Concr. Int., 17(6), 22–26.
Schlafli, M., and Bruhwiler, E. (1998). “Fatigue of existing reinforced concrete bridge deck slabs.” Engineering structures, Vol. 20, No. 11, Elsevier Science Ltd., Amsterdam, The Netherlands, 991–998.
Seim, W., Horman, M., Karbhari, V., and Seible, F. (2001). “External FRP post strengthening of scaled concrete slabs.” J. Compos. Constr., 5(2), 67–75.
Sheikh, S. A. (2002). “Performance of concrete structures retrofitted with fibre reinforced polymers.” Engineering structures, Vol. 24, Elsevier Science Ltd., Amsterdam, The Netherlands, 869–879.
TechFab, LLC. (2003). Technical data and use guide, Anderson, S.C.
Tyfo Systems. (2000). Product literature, Fyfe Company LLC, San Diego, Calif.
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© 2008 ASCE.
History
Received: Jan 22, 2007
Accepted: Oct 8, 2007
Published online: Sep 1, 2008
Published in print: Sep 2008
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