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Experimental study on shear behavior of BFRP-reinforced recycled aggregate concrete deep beams without stirrups

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

This paper describes an experimental investigation to evaluate the shear performance of basalt Fiber-reinforced Polymer (BFRP)-reinforced recycled aggregate concrete deep beams without stirrups. A total of 13 beams were tested under four-point loading until failure: nine were reinforced with BFRP bars, and four were reinforced with steel bars. The parameters of this experiment included the shear-span-to-depth ratio (a/d), reinforcement ratio of the longitudinal bar (ρ), sectional effective depth (d) and compressive strength of the recycled concrete (f c ′). The shear behavior of the beams was described in terms of the crack type, failure mode, shear strength and load-deformation relationship. The effects of the experimental variables on shear capacities and deflections of the tested beams were also investigated. The experimental results showed that the shear capacity of BFRP-reinforced beams was smaller than that of steel-reinforced beams. Additionally, the deformation of BFRP-reinforced beams was larger than that of steel-reinforced ones. The shear capacity of BFRP-reinforced recycled concrete beams without stirrups showed a linear relationship with the sectional effective depth d and was proportional to (d/a)4/3, (ρ)1/5 and (f c ′)1/3. Meanwhile, four existing codes were used to predict the shear strength of test beams and the CSA806-02 gave the better results.

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Authors and Affiliations

  1. Civil Engineering & Architecture College of Liaoning University of Technology, Jinzhou, Liaoning, 121001, China

    Hua-Xin Liu, Jian-Wei Yang, Xue-Zhi Wang & Ding-Jie Han

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  1. Hua-Xin Liu
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  2. Jian-Wei Yang
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  3. Xue-Zhi Wang
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  4. Ding-Jie Han
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Correspondence to Hua-Xin Liu.

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Liu, HX., Yang, JW., Wang, XZ. et al. Experimental study on shear behavior of BFRP-reinforced recycled aggregate concrete deep beams without stirrups. KSCE J Civ Eng 21, 2289–2299 (2017). https://doi.org/10.1007/s12205-016-1081-5

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  • DOI: https://doi.org/10.1007/s12205-016-1081-5

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