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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.14 No.5
- 발행연도
- 2020.9
- 수록면
- 745 - 766 (22page)
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This paper investigated the working behavior characteristics of six reinforcement concrete (RC) beams subjected to bending based on the numerical shape function (NSF) method and structural stressing state theory. Firstly, the structural stressing state mode is expressed based on the generalized strain energy density (GSED) derived from the measured strain data. Then, one of the Carbon Fiber Reinforced Plastic (CFRP)-strengthened RC beams is taken as an example and the leap characteristics of RC beam’s stressing state are detected by applying the Mann–Kendall (M–K) criterion, updating the existing definition of the structural failure load. Accordingly, the stressing state modes and strain fields of the CFRP-strengthened RC beam are proposed to reveal their leap characteristics. Furthermore, through comparing the working performance of six RC beams, the effects of different strengths and different reinforcement ratios on CFRP strengthening performance are investigated. Finally, the NSF method is applied to reasonably interpolate the limited strain data for further revealing the stressing state characteristics of the RC beams. The research results explore a new analysis method to conduct an accurate estimation of the structural failure load and provide a reference for the future design of CFRP-strengthened RC beams.
목차
Abstract
1. Introduction
2. Method and Theories of Structural Stressing State
3. Experiment of RC Beams
4. Stressing State Analysis of the RC Beam B3
5. Investigation into RC Beams with Different Concrete Strength
6. Investigation into RC Beams with Different Reinforcement Ratio
7. Conclusions
References
참고문헌 (33)
참고문헌 신청
Moussa Abualnour / 2019 / Thermomechanical analysis of antisymmetric laminated reinforced composite plates using a new four variable trigonometric refined plate theory / Computers and Concrete, An International Journal 24(6):489~498
Ali, A. / 2014 / CFRP mechanical anchorage for externally strengthened RC beams under flexure / Physics Procedia 55:10~16
Altin, S. / 2010 / Improving shear capacity and ductility of shear-deficient RC beams using CFRP strips / Journal of Reinforced Plastics and Composites 29(19):2975~2991
Ashour, A. F. / 2004 / Flexural strengthening of RC continuous beams using CFRP laminates / Cement & Concrete Composites 26(7):765~775
Attari, N. / 2012 / Flexural strengthening of concrete beams using CFRP, GFRP and hybrid FRP sheets / Construction and Building Materials 37:746~757
Ali, A. / 2014 / CFRP mechanical anchorage for externally strengthened RC beams under flexure / Physics Procedia 55:10~16
Altin, S. / 2010 / Improving shear capacity and ductility of shear-deficient RC beams using CFRP strips / Journal of Reinforced Plastics and Composites 29(19):2975~2991
Ashour, A. F. / 2004 / Flexural strengthening of RC continuous beams using CFRP laminates / Cement & Concrete Composites 26(7):765~775
Attari, N. / 2012 / Flexural strengthening of concrete beams using CFRP, GFRP and hybrid FRP sheets / Construction and Building Materials 37:746~757
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UCI(KEPA) : I410-ECN-0101-2020-532-001290787