Fatigue Behavior of Full-Scale Slab Bridge Strips with FRP Reinforcement
Publication: Journal of Composites for Construction
Volume 19, Issue 2
Abstract
Widespread deterioration of reinforced concrete (RC) bridge structures due to corrosion of steel reinforcement has resulted in an increased use of glass fiber-reinforced polymer (GFRP) reinforcing bars as an alternative reinforcement type for new bridge construction. Disadvantages of glass fiber-reinforced polymer reinforced concrete (GFRP-RC) flexural elements may include increased deflections and crack widths, significant reductions in the concrete contribution to shear resistance and susceptibility to fatigue failure. Posttensioned carbon fiber-reinforced polymer (CFRP) tendons can be used to effectively improve serviceability and shear resistance while increasing the fatigue life of the structure. An experimental study on the fatigue behavior of full-scale slab bridge strips with a reinforcement system combining passive GFRP reinforcing bars and active CFRP tendons is presented, along with analytical models to predict their fatigue lives and changes in stiffness resulting from repeated loading. The fatigue models presented are applicable to any GFRP-RC flexural members to predict changes in deflections, crack widths, and fatigue strength. The proposed reinforcement system presents a viable alternative to conventional design for short span slab bridges.
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Acknowledgments
Financial support from the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged.
References
ACI Committee 440. (2006). “Guide for the design and construction of structural concrete reinforced with FRP bars.”, American Concrete Institute, Detroit, MI.
Adimi, M. R., Rahman, A. H., and Benmokrane, B. (2000). “New method for testing fiber-reinforced polymer rods under fatigue.” J. Comp. Constr., 206–213.
Al-Mayah, A., Soudki, K., and Plumtree, A. (2006). “Development and assessment of a new CFRP rod-anchor system for prestressed concrete.” Appl. Compos. Mater., 13(5), 321–334.
Balaguru, P., and Shah, S. P. (1982). “A method for predicting crack widths and deflections for fatigue loading.” ACI SP-75, American Concrete Institute, Farmington Hills, MI, 153–175.
Braimah, A., Green, M. F., and Campbell, T. I. (2006). “Fatigue behaviour of concrete beams post-tensioned with unbonded carbon fibre reinforced polymer tendons.” Can. J. Civ. Eng., 33(9), 1140–1155.
Brondsted, P., Lilholt, H., and Anderson, S. I. (1997). “Fatigue damage prediction by measurements of the stiffness degradation in polymer matrix composites.” Proc., Int. Conf. on Fatigue of Composites, ICFC, Paris, France.
Demers, C. E. (1998). “Tension-tension axial fatigue of E-glass fiber-reinforced polymeric composites: Tensile fatigue modulus.” Constr. Build. Mater., 12(1), 51–58.
El-Ragaby, A., El-Salakawy, E., and Benmokrane, B. (2007a). “Fatigue analysis of concrete bridge deck slabs reinforced with E-glass/vinyl ester FRP reinforcing bars.” Composites Part B, 38(5–6), 703–711.
El-Ragaby, A., El-Salakawy, E., and Benmokrane, B. (2007b). “Fatigue life evaluation of concrete bridge deck slabs reinforced with glass FRP composite bars.” J. Compos. Constr., 258–268.
Frosch, R. J. (1999). “Another look at cracking and crack control in reinforced concrete.” ACI Struct. J., 96(3), 437–442.
Katz, A. (2000). “Bond to concrete of FRP rebars after cyclic loading.” J. Compos. Constr., 137–144.
Noël, M., and Soudki, K. (2011). “Evaluation of FRP post-tensioned slab bridge strips using AASHTO LRFD bridge design specifications.” J. Bridge Eng., 839–846.
Noël, M., and Soudki, K. (2012). “Evaluation of FRP post-tensioned slab bridges using the Canadian highway bridge design code.” Can. J. Civ. Eng., 39(3), 249–258.
Noël, M., and Soudki, K. (2014a). “Estimation of the crack width and deformation of FRP-reinforced concrete flexural members with and without transverse shear reinforcement.” Eng. Struct., 59(1), 393–398.
Noël, M., and Soudki, K. (2014b). “Fatigue behaviour of GFRP reinforcing bars in air and in concrete.” J. Compos. Constr., 04014006.
Noël, M., Soudki, K., and El-Sayed, A. (2011). “Flexural behavior of FRP-RC slabs post-tensioned with CFRP tendons.” ACI SP-275 fiber reinforced polymer reinforcement for reinforced concrete structures, American Concrete Institute, Farmington Hills, MI, 59-1–59-20.
Noël, M., and Soudki, K. (2013). “Effect of prestressing on the performance of GFRP-reinforced concrete slab bridge strips.” J. Compos. Constr., 188–196.
Rahman, A. H., Adimi, M. R., and Benmokrane, B. (1996). “Fatigue behaviour of FRP reinforcements encased in concrete.” Proc., 2nd Int. Conf. on Advanced Composite Materials in Bridges and Structures, Canadian Society for Civil Engineering, Montreal, QC, 691–698.
Sendeckyj, G. P. (1981). “Fitting models to composite materials fatigue data.” ASTM STP 734, ASTM International, West Conshohocken, PA, 245–260.
Shah, S. P. (1984). “Predictions of cumulative damage for concrete and reinforced concrete.” Mater. Constr., 17(1), 65–68.
Van Paepegem, W., and Degrieck, J. (2002). “A new coupled approach of residual stiffness and strength for fatigue of fibre-reinforced composites.” Int. J. Fatigue, 24(7), 747–762.
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© 2014 American Society of Civil Engineers.
History
Received: Apr 8, 2014
Accepted: Jul 2, 2014
Published online: Aug 6, 2014
Discussion open until: Jan 6, 2015
Published in print: Apr 1, 2015
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