Journal of the Korean Society for Advanced Composite Structures (복합신소재구조학회 논문집)

Korean Society for Advanced Composite Structures (한국복합신소재구조학회)
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Shape Design and Performance Evaluation of FRP Box-type Stiffener For the Application of RC Structure

철근콘크리트용 FRP Box 휨 보강재의 형상 설계 및 거동 평가

  • Kwon, Min-Ho (Department of Civil Engineering, Gangneung-Wonju National University) ;
  • Jung, Woo-Young (Department of Civil Engineering, ERI, Gyeongsang National University) ;
  • Spacone, Enrico (Department of Civil and Architectural Engineering, University "G.D'Annunzio" Chieti-Pescara)
  • Received : 2012.12.12
  • Accepted : 2013.01.18
  • Published : 2013.03.31
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Abstract

This paper presents the design, fabrication and performance of a reinforced concrete beam strengthened by GFRP box plate and its possibility for structural rehabilitations. The load capacity, ductility and failure mode of reinforced concrete structures strengthened by FRP box plate were investigated and compared with traditional FRP plate strengthening method. This is intended to assess the feasibility of using FRP box plate for repair and strengthening of damaged RC beams. A series of four-point bending tests were conducted on RC beams with or without strengthening FRP systems the influence of concrete cover thickness on the performance of overall stiffness of the structure. The parameters obtained by the experimental studies were the stiffness, strength, crack width and pattern, failure mode, respectively. The test yielded complete load-deflection curves from which the increase in load capacity and the failure mode was evaluated.

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Acknowledgement

Supported by : 한국연구재단

References

  1. Sim, J. S., Kim, G. S., Lee, S. M., and Kim, K. M. (1998). "A Experimental Study on the Flexural Characteristics of RC Beams Strengthened by GFRP." Korea Concrete Institute Spring Research Meeting Collection Of Dissertations, pp. 559-565.
  2. Teng, J. G., Chen, J. F., Smith, S. T., and Lam, L. (2002). "FRP: strengthened RC structures." FRP: Strengthened RC Structures, by JG Teng, JF Chen, ST Smith, L. Lam, pp. 266. ISBN 0-471-48706-6. Wiley-VCH, January 2002., 1.
  3. Yoo, S. W. and Bae, H. U. (2007). "Bond Slip Behavior Between Cast-In-Place Concrete and FRP Plank Used as Permanent Formwork and Tensile Reinforcement." Korean Society of Civil Engineers Collection Of Dissertations, Vol. 27, No. 1A, pp. 69-77.

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