Structural Engineering and Mechanics

  • 제59권4호
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  • Pages.775-793
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Flexural performance of FRP-reinforced concrete encased steel composite beams

  • 투고 : 2015.11.30
  • 심사 : 2016.06.24
  • 발행 : 2016.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a numerical method for estimating the curvature, deflection and moment capacity of FRP-reinforced concrete encased steel composite beams (FRP-RCS). A sectional analysis is first carried out to predict the moment-curvature relationship from which beam deflection and moment capacity are then calculated. Comparisons between theoretical and experimental results of tests conducted elsewhere show that the proposed numerical technique can accurately predict moment capacity and deflection of FRP-RCS composite beam. The numerical results also indicated that beam ductility and stiffness are improved when encased steel is added to FRP reinforced concrete beams. ACI, ISIS and Bischoff models for deflection prediction compared well at low load, however, significantly underestimated the experimental results for high load levels.

키워드

참고문헌

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피인용 문헌

  1. Ductility of Concrete Beams Reinforced with Both Fiber-Reinforced Polymer and Steel Tension Bars vol.16, pp.11, 2018, https://doi.org/10.3151/jact.16.531
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  4. Hygrothermal effects on the behavior of reinforced-concrete beams strengthened by bonded composite laminate plates vol.69, pp.3, 2016, https://doi.org/10.12989/sem.2019.69.3.327
  5. Compressive performance of RAC filled GFRP tube-profile steel composite columns under axial loads vol.8, pp.4, 2016, https://doi.org/10.12989/acc.2019.8.4.335