Structural Engineering and Mechanics

  • 제53권1호
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  • Pages.41-55
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  • 2015
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Design for shear strength of concrete beams longitudinally reinforced with GFRP bars

  • Thomas, Job (Division of Civil Engineering, School of Engineering, Cochin University of Science and Technology) ;
  • Ramadassa, S. (Division of Civil Engineering, School of Engineering, Cochin University of Science and Technology)
  • 투고 : 2013.10.07
  • 심사 : 2014.06.08
  • 발행 : 2015.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a model for the evaluation of shear strength of fibre reinforced polymer (FRP)-reinforced concrete beams is given. The survey of literature indicates that the FRP reinforced beams tested with shear span to depth ratio less than or equal to 1.0 is limited. In this study, eight concrete beams reinforced with GFRP rebars without stirrups are cast and tested over shear span to depth ratio of 0.5 and 1.75. The concrete compressive strength is varied from 40.6 to 65.3 MPa. The longitudinal reinforcement ratio is varied from 1.16 to 1.75. The experimental shear strength and load-deflection response of the beams are determined and reported in this paper. A model is proposed for the prediction of shear strength of beams reinforced with FRP bars. The proposed model accounts for compressive strength of concrete, modulus of FRP rebar, longitudinal reinforcement ratio, shear span to depth ratio and size effect of beams. The shear strength of FRP reinforced concrete beams predicted using the proposed model is found to be in better agreement with the corresponding test data when compared with the shear strength predicted using the eleven models published in the literature. Design example of FRP reinforced concrete beam is also given in the appendix.

키워드

참고문헌

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피인용 문헌

  1. Shear Behavior of Circular Concrete Members Reinforced with GFRP Bars and Spirals at Shear Span-to-Depth Ratios between 1.5 and 3.0 vol.20, pp.6, 2016, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000707
  2. Numerical simulation of concrete beams reinforced with composite GFRP-Steel bars under three points bending vol.57, pp.5, 2016, https://doi.org/10.12989/sem.2016.57.5.937
  3. Prediction of the load and deflection response of concrete deep beams reinforced with FRP bars pp.1537-6532, 2021, https://doi.org/10.1080/15376494.2018.1549292
  4. Behavior of pre-cracked deep beams with composite materials repairs vol.63, pp.5, 2015, https://doi.org/10.12989/sem.2017.63.5.575
  5. A study on load-deflection behavior of two-span continuous concrete beams reinforced with GFRP and steel bars vol.63, pp.5, 2015, https://doi.org/10.12989/sem.2017.63.5.629
  6. Structural performance of GFRP-concrete composite beams vol.68, pp.4, 2015, https://doi.org/10.12989/sem.2018.68.4.485
  7. A New Proposal for the Shear Strength Prediction of Beams Longitudinally Reinforced with Fiber-Reinforced Polymer Bars vol.10, pp.5, 2020, https://doi.org/10.3390/buildings10050086
  8. Effect of Support Conditions on Performance of Continuous Reinforced Concrete Deep Beams vol.10, pp.11, 2015, https://doi.org/10.3390/buildings10110212