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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.66 No.4
- 발행연도
- 2018.1
- 수록면
- 543 - 555 (13page)
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초록· 키워드
오류제보하기
Fiber Reinforced Polymer (FRP), which has a high strength to weight ratio, are now regularly used for strengthening of deficient reinforced concrete (RC) structures. While various researches have been conducted on FRP strengthening, an area that still requires attention is predicting the debonding failure load of prestressed FRP strengthened RC beams. Application of prestressing increases the capacity and reduces the premature failure of the beams largely, though not entirely. Few analytical methods are available to predict the failure loads under flexure failure. With this paucity, this research proposes a method for predicting debonding failure induced by intermediate crack (IC) for prestressed FRP-strengthened beams. The method consists of a numerical study on beams retrofitted with prestressed FRP in the tension side of the beam. The method applies modified Branson moment-curvature analysis together with the global energy balance approach in combination with fracture mechanics criteria to predict failure load for complicated IC-induced failure. The numerically simulated results were compared with published experimental data and the average of theoretical to experimental debonding failure load is found to be 0.93 with a standard deviation of 0.09.
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참고문헌 (42)
참고문헌 신청
Achintha, P. / 2008 / Fracture mechanics of plate debonding / J. Compos. Constr. 12(4):396~404
Achintha, P. / 2009 / Moment-curvature and strain energy of beams with external fiber-reinforced polymer reinforcement / ACI Struct. J. 106(1):20
2008 / ACI-4402R-08, Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures
ACI-CODE / 2008 / Building Code Requirements for Structural Concrete
Barros, J.A. / 2012 / A design model for fibre reinforced concrete beams pre-stressed with steel and FRP bars / Compos. Struct. 94(8):2494~2512
Achintha, P. / 2009 / Moment-curvature and strain energy of beams with external fiber-reinforced polymer reinforcement / ACI Struct. J. 106(1):20
2008 / ACI-4402R-08, Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures
ACI-CODE / 2008 / Building Code Requirements for Structural Concrete
Barros, J.A. / 2012 / A design model for fibre reinforced concrete beams pre-stressed with steel and FRP bars / Compos. Struct. 94(8):2494~2512
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