Journal of shanghai Jiaotong University (Science) ›› 2012, Vol. 17 ›› Issue (4): 408-414.doi: 10.1007/s12204-012-1299-4

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Experimental Study of the Shear Capacity of Glass Fiber Reinforced Polymer Reinforced Concrete Beam with Circular Cross Section

Experimental Study of the Shear Capacity of Glass Fiber Reinforced Polymer Reinforced Concrete Beam with Circular Cross Section

SHI Xiao-quan (师晓权), ZHANG Zhi-qiang (张志强), LI Zhi-ye (李志业)   

  1. (School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China)
  2. (School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China)
  • Online:2012-08-30 Published:2012-11-16
  • Contact: SHI Xiao-quan (师晓权) E-mail:shark817@163.com

Abstract: In order to research the shear behavior of glass fiber reinforced polymer (GFRP) reinforced concrete beam with circular cross section, based on the test results of 36 concrete beams subjected to four-point loading up to failure, the shear capacity and mechanical properties of deformation were analyzed comparatively between GFRP reinforced concrete (GFRP-RC) beams and steel reinforced concrete (steel-RC) beams. Furthermore, influencing factors of shear capacity of GFRP-RC beam with circular cross section were also investigated. The test results indicate that the failure modes of GFRP-RC and steel-RC beams are the same, but the crack patterns are slightly different. And, the shear capacity of GFRP-RC beam firstly increases with the reduction of shear span ratio, and then decreases. In addition, it was found that the influencing coefficient of GFRP on concrete increases with shear span ratio reducing.

Key words: concrete beam| glass fiber reinforced polymer (GFRP)| circular cross section| influencing coefficient

摘要: In order to research the shear behavior of glass fiber reinforced polymer (GFRP) reinforced concrete beam with circular cross section, based on the test results of 36 concrete beams subjected to four-point loading up to failure, the shear capacity and mechanical properties of deformation were analyzed comparatively between GFRP reinforced concrete (GFRP-RC) beams and steel reinforced concrete (steel-RC) beams. Furthermore, influencing factors of shear capacity of GFRP-RC beam with circular cross section were also investigated. The test results indicate that the failure modes of GFRP-RC and steel-RC beams are the same, but the crack patterns are slightly different. And, the shear capacity of GFRP-RC beam firstly increases with the reduction of shear span ratio, and then decreases. In addition, it was found that the influencing coefficient of GFRP on concrete increases with shear span ratio reducing.

关键词: concrete beam| glass fiber reinforced polymer (GFRP)| circular cross section| influencing coefficient

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