Normalized Confinement Stiffness Approach for Modeling FRP-Confined Concrete
Source abstract
Abstract
Passive confinement provided by fiber-reinforced polymer (FRP) jackets increases the compressive strength and axial deformation capacity of concrete. This study explains a normalized confinement stiffness approach to quantify the strength and strain increase of FRP-confined concrete using a previously proposed and most widely-used model for both active and passive confinement of concrete, and claims that these equations can still be used for FRP-confined concrete with very simple modifications. A comparison of the proposed model's accuracy to American Concrete Institute guidelines was made using experimental results reported in the literature. The proposed modified model was shown to be quite effective in predicting the increased strength and strain values of FRP-confined concrete, and was also modified for FRP-confined hollow concrete cylinders.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Concrete Corrosion and Durability · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ph.D. Candidate, School of Civil, Mining and Environmental Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia.
Associate Professor in Structural Engineering, School of Civil, Mining and Environmental Engineering, Univ. of Wollongong, Wollongong, NSW 2522, Australia (corresponding author).
References (39)
Show source-provided references
1. American Concrete Institute (ACI). (2002). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” 440.2R-02 Farmington Hills MI.
2. American Concrete Institute (ACI). (2008). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” 440.2R-08 Farmington Hills MI.
3. Balmer G. G. (1949). “Shearing strength of concrete under high triaxial stress–Computation of Mohr's envelope curve.” Rep. SP-23 U.S. Bureau of Reclamation Structure Research Lab Denver.
4. 10.1016/S0008-8846(99)00219-710.1016/S0008-8846(99)00219-7 ↗
5. Considère A. · 1906 · 242
6. De Lorenzis L. Micelli F. and La Tegola A. (2002). “Influence of specimen size and resin type on the behavior of FRP-confined concrete cylinders.” Advanced polymer composites for structural applications in construction Thomas Telford London 231–239.10.1680/apcfsaic.31227.0024 ↗
7. De Lorenzis L. and Tepfers R. (2001). “A comparative study of models on confinement of concrete cylinders with FRP composites.” Rep. No. 01:04 Dept. of Building Materials Chalmers Univ. of Technology Gothenburg Sweden.
8. 10.1061/(ASCE)1090-0268(2003)7:3(219)10.1061/(ASCE)1090-0268(2003)7:3(219) ↗
9. 10.1061/JMCEA3.000251010.1061/JMCEA3.0002510 ↗
10. Confinement model for axially loaded concrete confined by circular fiber-reinforced polymer tubes
11. Triaxial behavior of concrete
12. 10.1016/S0008-8846(02)01085-210.1016/S0008-8846(02)01085-2 ↗
13. Howie I. and Karbhari V. M. (1994). “Effect of materials architecture on strengthening efficiency of composite wraps for deteriorating columns in the North-East.” Proc. 3rd Materials Engineering Conf. ASCE New York 199–206.
14. Experimental study of plain concrete under triaxial stress
15. 10.1016/j.engstruct.2007.01.01010.1016/j.engstruct.2007.01.010 ↗
16. 10.1016/S0950-0618(03)00045-X10.1016/S0950-0618(03)00045-X ↗
17. 10.1177/073168440303542910.1177/0731684403035429 ↗
18. 10.1061/(ASCE)1090-0268(2004)8:6(539)10.1061/(ASCE)1090-0268(2004)8:6(539) ↗
19. 10.1016/j.cemconcomp.2006.07.00710.1016/j.cemconcomp.2006.07.007 ↗
20. Experimental investigation of multiaxial compressive strength of concrete under different stress paths
21. 10.1016/j.compositesb.2008.03.00710.1016/j.compositesb.2008.03.007 ↗
22. 10.1061/(ASCE)0733-9445(1988)114:8(1804)10.1061/(ASCE)0733-9445(1988)114:8(1804) ↗
23. 10.1061/(ASCE)0733-9445(1988)114:8(1827)10.1061/(ASCE)0733-9445(1988)114:8(1827) ↗
24. Matthys S. (2001). “Structural behavior and design of concrete members strengthened with externally bonded FRP reinforcement.” Ph.D. thesis Ghent Univ. Ghent Belgium.
25. Matthys S. Taerwe L. and Audenaert K. (1999). “Tests on axially loaded concrete columns confined by fiber reinforced polymer sheet wrapping.” Proc. 4th. Int. Symp. on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures American Concrete Institute Farmington MI 217–229.
26. Modarelli R. Micelli F. and Manni O. (2005). “FRP-confinement of hollow concrete cylinders and prisms.” Proc. 7th Int. Symp. on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures American Concrete Institute Farmington MI 1–18.
27. 10.1061/(ASCE)1090-0268(2001)5:4(237)10.1061/(ASCE)1090-0268(2001)5:4(237) ↗
28. Richart F. E. Brandtzaeg A. and Brown R. L. (1928). “A study of the failure of concrete under combined compressive stresses.” Bulletin 185 Univ. of Illinois Engineering Experimental Station Urbana-Champaign IL.
29. Richart F. E. Brandtzaeg A. and Brown R. L. (1929). “The failure of plain and spirally reinforced concrete in compression.” Bulletin 190 Univ. of Illinois Engineering Experimental Station Urbana-Champaign IL.
30. 10.1061/(ASCE)1090-0268(2000)4:3(129)10.1061/(ASCE)1090-0268(2000)4:3(129) ↗
31. 10.1061/(ASCE)0733-9399(2002)128:2(156)10.1061/(ASCE)0733-9399(2002)128:2(156) ↗
32. Concrete over the top: Is there life after peak?
33. 10.1061/(ASCE)1090-0268(1999)3:3(143)10.1061/(ASCE)1090-0268(1999)3:3(143) ↗
34. 10.1016/S0958-9465(98)00012-210.1016/S0958-9465(98)00012-2 ↗
35. Watanabe S. (1997). “Confinement effect of FRP sheet on strength and ductility of concrete cylinders under uniaxial compression.” 3rd Int. Symp. of the Japan Concrete Institute Tokyo Japan 233–240.
36. 10.1061/(ASCE)0899-1561(2000)12:2(139)10.1061/(ASCE)0899-1561(2000)12:2(139) ↗
37. Mechanical properties of three high strength concretes containing silica fume
38. 10.1061/(ASCE)CC.1943-5614.000001010.1061/(ASCE)CC.1943-5614.0000010 ↗
39. Flexural strength and ductility of circular hollow reinforced concrete columns without confinement on inside face