New Approach for Estimating the Deflection of Beams Reinforced with FRP Reinforcement
Publication: Journal of Composites for Construction
Volume 12, Issue 6
Abstract
Due to concerns with corrosion, the use of fiber-reinforced polymer (FRP) as a replacement to conventional steel reinforcement has greatly increased over the last decade. Researchers have identified the distinctive mechanical and bond properties of FRP reinforcement that prevent the use of existing relationships to establish serviceability of concrete structures reinforced with such products. Although studies have modified these empirical relationships to describe the behavior of structures reinforced with FRP reinforcement, this paper will provide a new approach to estimate deflection of concrete beams by considering material properties of the reinforcement and incorporating the effects of tension stiffening. Accuracy and precision of the approach was established by performing a statistical analysis on a database containing 171 FRP-reinforced concrete beams. Results were compared to those from existing proposed relationships and indicate the potential of the method to estimate deflection at various service conditions.
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Acknowledgments
The writers would like to thank for financial support from the Natural Sciences and Engineering Research Council (NSERC)NSERC of Canada.
References
American Concrete Institute (ACI). (2003). “ACI Committee 440 report—Guide for the design and construction of structural concrete reinforced with FRP bars.” ACI 440.1R-03, American Concrete Institute, Farmington Hills, Mich.
American Concrete Institute (ACI). (2006). “ACI Committee 440 report—Guide for the design and construction of structural concrete reinforced with FRP bars.” ACI 440.1R-06, American Concrete Institute, Farmington Hills, Mich.
Benmokrane, B., Chaallal, O., and Masmoudi, R. (1996). “Flexural response of concrete beams reinforced with FRP reinforcing bars.” ACI Struct. J., 93(1), 46–55.
Bischoff, P. H., and Paixao, R. (2004). “Tension stiffening and cracking of concrete reinforced with GFRP bars.” Can. J. Civ. Eng., 31(4), 579–588.
Branson, D. H. (1977). Deformation of concrete structures, McGraw-Hill, New York.
Canadian Standards Association (CSA). (2004). “Design of concrete structures standard.” A23.3-04, Toronto.
Carreira, D. J., and Chu, K. H. (1986). “Stress–strain relationship for reinforced concrete in tension.” ACI J., 83(3), 21–28.
Collins, M. P., and Mitchell, D. (1997). Prestressed concrete structures, Response Publications, Toronto, Montreal, Ont., Canada.
Fields, K., and Bischoff, P. H. (2004). “Tension stiffening and cracking of high strength reinforced concrete tension members.” ACI Struct. J., 101(4), 447–456.
Gilbert, I. (1981). “Deflections of reinforced concrete beams—A design approach.” UNICIV Rep. No. R-201, School of Civil Engineering, Univ. of New South Wales, Kensington, New South Wales, Australia.
ISIS Canada. (2001). Reinforcing concrete structures with FRP, Design Manual III, Univ. of Manitoba, Winnipeg, Man., Canada.
MacGregor, J. G., and Bartlett, F. M. (2000). Reinforced concrete mechanics and design, 1st Canadian Ed., Prentice-Hall Canada Inc., Scarborough, Ont., Canada.
Mota, C., Alminar, S., and Svecova, D. (2006). “Critical review of deflection formulas for FRP-RC members.” J. Compos. Constr., 10(3), 183–194.
Rao, P. S. (1996). Basic laws governing moment redistribution in statically indeterminate reinforced concrete structures, Ernst & Sohn, Berlin.
Yost, J. R., Gross, S. P., and Dinehart, D. W. (2003). “Effective moment of inertia for GFRP reinforced concrete beams.” ACI Struct. J., 100(6), 732–739.
Zhao, W., Pilakoutas, K., and Waldron, P. (1997). “FRP reinforced concrete: Calculations for deflections.” Proc., 3rd Int. Symp. on Non-Metallic (FRP) Reinforcement for Concrete Structures, Vol. 2, Japan Concrete Institute, Sapporo, Japan, 511–518.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 12 • Issue 6 • December 2008
Pages: 579 - 587
Copyright
© 2008 ASCE.
History
Received: Mar 9, 2007
Accepted: Jan 14, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
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