Analysis of Cracking Moment and Immediate Deflection in FRP Rebars Reinforced Concrete Beams

Shun Feng Liu; Mu Yi Hou; Xiao Liu; Ru Heng Wang

doi:10.4028/www.scientific.net/AMR.671-674.618

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 671-674Analysis of Cracking Moment and Immediate...

Analysis of Cracking Moment and Immediate Deflection in FRP Rebars Reinforced Concrete Beams

Abstract:

Fiber reinforced polymer rebars have advantages of light weight, high tensile strength and excellent corrosion resistance. However, researches showed that [1-2], the low elastic modulus of FRP rebar resulting in a larger deflection than steel reinforced concrete beam in equivalent condition. Therefore, it is crucial to control the deflections in serviceability limit states. Three GFRP reinforced concrete beams were tested with four-point bending, deducing the cracking moment formula of the FRP reinforced beam. Then, Bischoff model is adopted to calculate the deflection, and reaching a good agreement with the experimental results. We recommend Bischoff model to evaluate the immediate deflections.

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Periodical:

Advanced Materials Research (Volumes 671-674)

Pages:

618-621

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.671-674.618

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Online since:

March 2013

Authors:

Shun Feng Liu*, Mu Yi Hou, Xiao Liu, Ru Heng Wang

Keywords:

Concrete Beam, Cracking Moment, FRP Rebars, Immediate Deflection

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References

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