FRP 보강콘크리트 보의 휨거동에 관한 실험적 연구
Experimental Verification of Reinforced Concrete Beam with FRP Rebar
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참고문헌
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초록
The use of fiber reinforced polymer (FRP) composites is significantly growing in construction and infrastructure applications where durability under harsh environmental conditions is of great concern. In order to examine the applicability of FRP rebar as a reinforcement in flexural member, flexural tests were conducted. 12 beams with different FRP materials such as CFRP, GFRP and Hybrid FRP and reinforcement ratio were tested and analyzed in terms of failure mode, moment-deflection, flexural capacity, ductility index and sectional strain distribution. The test results were also compared with the theoretical model represented in ACI 440.1R06. Test results indicate that the flexural capacity of the beams reinforced by FRP bars can be accurately predicted using the ultimate design theory. They also show that the current ACI model for computing the deflection overestimates the actual deflection of GFRP series and underestimates the deflection of CFRP series.
Abstract
The use of fiber reinforced polymer (FRP) composites is significantly growing in construction and infrastructure applications where durability under harsh environmental conditions is of great concern. In order to examine the applicability of FRP rebar as a reinforcement in flexural member, flexural tests were conducted. 12 beams with different FRP materials such as CFRP, GFRP and Hybrid FRP and reinforcement ratio were tested and analyzed in terms of failure mode, moment-deflection, flexural capacity, ductility index and sectional strain distribution. The test results were also compared with the theoretical model represented in ACI 440.1R06. Test results indicate that the flexural capacity of the beams reinforced by FRP bars can be accurately predicted using the ultimate design theory. They also show that the current ACI model for computing the deflection overestimates the actual deflection of GFRP series and underestimates the deflection of CFRP series.
참고문헌 (10)
- "ACI 440.1R-01. Guide for the design and construction of concrete reinforced with FRP bars. ACI Committee 440, American Concrete Institute", pp.41~ (2001), Farmington Hills
- "ISIS Canada: Design Manual 3. Reinforcing concrete structures with fiber reinforced polymers. The Canadian Network of Centers of Excellence on Intelligent Sensing for Innovative Structures,University of Manitoba", 207~ (2001)
- Pecce M., "Experimental response and code models of GFRP RC beams in bending", J. Compos. Constr, (44), pp.182~190 (2000)
- Houssam A. Toutanji, "Flexural Behavior of Concrete beams Reinforced with Glass Fiber-Reinforced Polymer(GFRP) Bars", ACI Structural Journal, 9, pp.712~719 (2000)
- Benmokrame B., "FLexural Response of Concrete Beams Reinforced with FRP Reinforcing Bar", ACI Structural Journal, pp.46~55 (1996)
- Pilakoutas, K. Neocleous, "Design philosophy issues of fiber reinforced polymer reinforced concrete structures", ASCE J Compos Constr 6, pp.154~161 (2002)
- Theriault M., "Effects of FRP reinforcement ratio and concrete strength on flexural behavior of concrete beams", J Compos Construct 2, pp.7~16 (1998)
- Newhook J., "Cracking and deformability of concrete flexural sections with fiber reinforced polymer", ASCE J Struct Eng128, pp.1195~1201 (2001)
- Masmoudi R., "Cracking behaviour of concrete beams reinforced with fiber reinforced plastic rebars", Can J Civil Eng23, pp.1172~1179 (1996)
- Faza S.S., "Pre- and post- cracking deflection behaviour of concrete beams reinforced with fibre-reinforced plastic rebars", Proceedings of 1st international conference on advanced composite materials in bridges and structures (ACMBS 1), CSCE, pp.151~160 (1992)