Repair of Damaged Prestressed Concrete Girders with FRP and FRCM Composites
Publication: Journal of Composites for Construction
Volume 21, Issue 3
Abstract
Traditional methods used to repair prestressed concrete (PC) girders subjected to impact damage due to overheight vehicles include strand splicing and external posttensioning. These methods have proven to be partially satisfactory in restoring the damaged girder’s ultimate strength. The use of composite materials in the strengthening, rehabilitation, and repair industry has been gaining popularity due to their excellent material behavior and ease of application. Composites such as fiber-reinforced polymer (FRP) and fabric-reinforced cementitious matrix (FRCM) systems are presently available alternatives for restoring the integrity of a damaged girder that eliminate the need for girder replacement. The use of externally bonded carbon FRP (CFRP) materials for the repair of damaged bridge components has been successfully deployed and has been shown to reduce repair costs and traffic closure time. FRCM composites represent an alternative material to FRP for structural retrofit/rehabilitation. However, the use of FRCMs is rather new and technical literature is limited in the United States and does not include design provisions for the repair of PC structures. The objective of this study is to evaluate both experimentally and analytically the effectiveness of FRP and FRCM as repair systems to impact-damaged precast PC girders. The specimens consisted of three PC girders retrieved from a bridge after 55 years of service. One specimen was load tested undamaged and used as a benchmark. The other two were damaged (four cut strands) and repaired with FRP and FRCM prior to being load tested. A cross-sectional analysis was performed to predict strength and behavior of all specimens using provisions of current design specifications and guides. Theoretical values were compared to experimental values and the effectiveness of the strengthening methods and respective design approaches were evaluated.
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Acknowledgments
The project was made possible with the financial support received from the University Transportation Center RE-CAST, the Virginia Transportation Research Council via a subcontract with Virginia Tech, and the CAIT Tier I UTC Consortium led by Rutgers University. The opinions in this paper are those of the authors and not necessarily those of the sponsors or collaborators.
References
AASHTO. (2010). AASHTO LRFD bridge design specifications—U.S. unit, 5th Ed., Washington, DC.
ACI (American Concrete Institute). (2008). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” ACI 440.2R-08, Farmington Hills, MI.
ACI (American Concrete Institute). (2013). “Design and construction guide of externally bonded FRCM systems for concrete and masonry repair and strengthening.” ACI 549.4R-13, Farmington Hills, MI.
Arboleda, D. (2014). “Fabric reinforced cementitious matrix (FRCM) composites for infrastructure strengthening and rehabilitation: Characterization methods.” Ph.D. thesis, Univ. of Miami, Coral Gables, Miami.
ASTM. (2014). “Standard test method for tensile properties of polymer matrix composite materials.” ASTM D3039/D3039M-14, West Conshohocken, PA.
Babaeidarabad, S., Arboleda, D., Loreto, G., and Nanni, A. (2014). “Flexural strengthening of RC beams with an externally bonded fabric-reinforced cementitious matrix.” J. Compos. Constr., 18(5), .
Babaeidarabad, S., Loreto, G., and Nanni, A. (2014). “Flexural strengthening of RC beams with an externally bonded fabric-reinforced cementitious matrix.” J. Compos. Constr., .
Belarbi, A., Bae, S., and Brancaccio, A. (2012). “Behavior of full-scale RC T-beams strengthened in shear with externally bonded FRP sheets.” Constr. Build. Mater., 32, 27–40.
D’Ambrisi, A., Feo, L., and Focacci, F. (2013). “Experimental analysis on bond between PBO FRCM strengthening materials and concrete.” Compos. Part B, 44(1), 524–532.
D’Ambrisi, A., and Focacci, F. (2011). “Flexural strengthening of RC beams with cement-based composites.” J. Compos. Constr., 707–720.
Di Ludovico, M., Nanni, A., Prota, A., and Cosenza, E. (2005). “Repair of bridge girders with composites: Experimental and analytical validation.” ACI Struct. J., 102(5), 639–648.
Dong, J., Wang, Q., and Guan, Z. (2013). “Structural behaviour of RC beams with external flexural and flexural-shear strengthening by FRP sheets.” Compos. Part B, 44(1), 604–612.
Ekenel, M., Rizzo, A., Myers, J. J., and Nanni, A. (2006). “Flexural fatigue behavior of reinforced concrete beams strengthened with FRP fabric and precured laminate systems.” J. Compos. Constr., 433–442.
ElSafty, A., Graeff, M. K., and Fallaha, S. (2014). “Behavior of laterally damaged prestressed concrete bridge girders repaired with CFRP laminates under static and fatigue loading.” Int. J. Concr. Struct. Mater., 8(1), 43–59.
ICC Evaluation Service. (2013). “Acceptance criteria for masonry and concrete strengthening using fiber-reinforced cementitious matrix (FRCM) composite systems.” AC434, Whittier, CA.
ICC Evaluation Service. (2014). “Acceptance criteria for concrete and reinforced and unreinforced masonry strengthening using externally bonded fiber-reinforced polymer (FRP) composite systems.” AC125, Whittier, CA.
Jones, M., Gangi, M., Leisen, J., Pino, V., Wollmann, C., Cousins, T., Koutromanos, I., and Nanni, A. (2015). “Evaluation of repair techniques for impact damaged prestressed girders.”, Virginia Transportation Research Council, VA.
Kotynia, R., Abdel Baky, H., Neale, K. W., and Ebead, U. A. (2008). “Flexural strengthening of RC beams with externally bonded CFRP systems: Test results and 3D nonlinear FE analysis.” J. Compos. Constr., 190–201.
Loreto, G., Leardini, L., Arboleda, D., and Nanni, A. (2014). “Performance of RC slab-type elements strengthened with fabric-reinforced cementitious-matrix composites.” J. Compos. Constr., .
Nanni, A. (1995). “Concrete repair with externally bonded FRP reinforcement: Examples from Japan.” Concr. Int., 17(6), 22–25.
Nanni, A. (1997). “Carbon FRP strengthening: New technology becomes mainstream.” Concr. Int., 19(6), 19–23.
Nanni, A. (2012). “FRCM strengthening—A new tool in the concrete and masonry repair toolbox.” Concr. Int., 34(4), 43–49.
Nanni, A., Di Ludovico, M., and Parretti, R. (2004). “Shear strengthening of a PC bridge girder with NSM CFRP rectangular bars.” Adv. Struct. Eng., 7(4), 297–309.
Nanni, A., Huang, P. C., and Tumialan, J. G. (2001). “Strengthening of impact damaged bridge girder using FRP laminates.” Proc., 9th Int. Conf. on Structural Faults and Repair, Engineering Technics, Edinburgh, U.K.
Olson, S. A., French, C. W., and Leon, R. T. (1992). “Reusability and impact damage repair of twenty-year-old AASHTO type III girders.”, Univ. of Minnesota, Minneapolis.
Ombres, L. (2012). “Debonding analysis of reinforced concrete beams strengthened with fibre reinforced cementitious mortar.” Eng. Fract. Mech., 81, 94–109.
Pellegrino, C., and D’Antino, T. (2013). “Experimental behaviour of existing precast prestressed reinforced concrete elements strengthened with cementitious composites.” Compos. Part B, 55, 31–40.
Pino, V. (2016). “Fabric reinforced cementitious matrix (FRCM) composites as a repair system for transportation infrastructure.” Ph.D. thesis, Univ. of Miami, Miami.
Pino, V., and Nanni, A. (2015). “Repair of damaged PC girder with FRCM and FRP composites.” USDOT, RE-CAST Univ. Transportation Center, Rolla, MO.
Rabinovitch, O., and Frostig, Y. (2003). “Experiments and analytical comparison of RC beams strengthened with CFRP composites.” Compos. Part B, 34(8), 663–677.
Rosenboom, O., Walter, C., and Rizkalla, S. (2009). “Strengthening of prestressed concrete girders with composites: Installation, design and inspection.” Constr. Build. Mater., 23(4), 1495–1507.
Sneed, L., D’Antino, T., and Carloni, C. (2014). “Investigation of bond behavior of polyparaphenylene benzobisoxazole fiber-reinforced cementitious matrix composite-concrete interface.” ACI Mater. J., 111(5), 569–580.
Zobel, R. S., Carrasquillo, R., and Fowler, D. (1997). “Repair of impact damaged prestressed bridge girder using a variety of materials and placement methods.” Constr. Build. Mater., 11(5), 319–326.
Information & Authors
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Published In
Journal of Composites for Construction
Volume 21 • Issue 3 • June 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Apr 26, 2016
Accepted: Sep 13, 2016
Published online: Nov 16, 2016
Discussion open until: Apr 16, 2017
Published in print: Jun 1, 2017
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