Structural Engineering and Mechanics

  • 제15권3호
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  • Pages.345-365
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  • 2003
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Strength of FRP RC sections after long-term loading

  • Pisani, M.A. (Politecnico di Milano, Department of Structural Engineering)
  • 투고 : 2002.08.09
  • 심사 : 2003.02.22
  • 발행 : 2003.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The adoption of fibre reinforced polymer (FRP) rebars (whose behaviour is elastic-brittle) in reinforced concrete (RC) cross sections requires the assessment of the influence of time-dependent behaviour of concrete on the load-carrying capacity of these sections. This paper presents a method of computing the load-carrying capacity of sections that are at first submitted to a constant long-term service load and then overloaded up to ultimate load. The method solves first a non-linear visco-elastic problem, and then a non-linear instantaneous analysis up to ultimate load that takes into account the self-equilibrated stress distribution previously computed. This method is then adopted to perform a parametric analysis that shows that creep and shrinkage of concrete increase the load-carrying capacity of the cross section reinforced with FRP and allows for the suggestion of simple design rules.

키워드

참고문헌

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피인용 문헌

  1. Non-linear strain distributions due to temperature effects in compact cross-sections vol.26, pp.10, 2004, https://doi.org/10.1016/j.engstruct.2004.04.004
  2. A Proposal to Improve the Effectiveness of the Deflection Control Method Provided by Eurocodes for Concrete, Timber, and Composite Slabs vol.14, pp.24, 2003, https://doi.org/10.3390/ma14247627