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A platform for research: civil engineering, architecture and urbanism
Experimental study on shear behavior of BFRP-reinforced recycled aggregate concrete deep beams without stirrups
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.
Experimental study on shear behavior of BFRP-reinforced recycled aggregate concrete deep beams without stirrups
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.
Experimental study on shear behavior of BFRP-reinforced recycled aggregate concrete deep beams without stirrups
Liu, Hua-Xin (author) / Yang, Jian-Wei (author) / Wang, Xue-Zhi (author) / Han, Ding-Jie (author)
KSCE Journal of Civil Engineering ; 21 ; 2289-2299
2016-12-21
11 pages
Article (Journal)
Electronic Resource
English
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