Computers and Concrete

  • 제33권2호
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  • Pages.163-173
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  • 2024
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Finite element modeling of reinforced concrete beams externally bonded with PET-FRP laminates

  • Rami A. Hawileh (Department of Civil Engineering, American University of Sharjah) ;
  • Maha A. Assad (Department of Civil Engineering, American University of Sharjah) ;
  • Jamal A. Abdalla (Department of Civil Engineering, American University of Sharjah) ;
  • M. Z. Naser (School of Civil and Environmental Engineering & Earth Sciences, Clemson University)
  • 투고 : 2022.07.15
  • 심사 : 2023.09.06
  • 발행 : 2024.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Fiber-reinforced polymers (FRP) have a proven strength enhancement capability when installed into Reinforced Concrete (RC) beams. The brittle failure of traditional FRP strengthening systems has attracted researchers to develop novel materials with improved strength and ductility properties. One such material is that known as polyethylene terephthalate (PET). This study presents a numerical investigation of the flexural behavior of reinforced concrete beams externally strengthened with PET-FRP systems. This material is distinguished by its large rupture strain, leading to an improvement in the ductility of the strengthened structural members compared to conventional FRPs. A three-dimensional (3-D) finite element (FE) model is developed in this study to predict the load-deflection response of a series of experimentally tested beams published in the literature. The numerical model incorporates constitutive material laws and bond-slip behavior between concrete and the strengthening system. Moreover, the validated model was applied in a parametric study to inspect the effect of concrete compressive strength, PET-FRP sheet length, and reinforcing steel bar diameter on the overall performance of concrete beams externally strengthened with PET-FRP.

키워드

과제정보

The support for the research presented in this paper had been provided by Riad T. Al-Sadek Endowed Chair in Civil Engineering at the American University of Sharjah. The support is gratefully appreciated and acknowledged. The views and conclusions expressed or implied in this study are those of the authors and should not be interpreted as those of the donor or the institution.

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