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

• Published in: Shanghai jiao tong da xue xue bao Vol. 17; no. 4; pp. 408 - 414
• Main Author: 师晓权 张志强 李志业
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai Jiaotong University Press 01.08.2012
• Subjects: Architecture; Beams (structural); Computer Science; Cracks; Cross sections; Electrical Engineering; Engineering; Glass fiber reinforced plastics; Life Sciences; Materials Science; Mechanical properties; Reinforced concrete; Reinforcing steels; Shear; circular cross section; TU 377; concrete beam; influencing coefficient; glass fiber reinforced polymer (GFRP)
• ISSN: 1007-1172; 1995-8188
• DOI: 10.1007/s12204-012-1299-4

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 （CFRP-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 GFR.P on concrete increases with shear span ratio reducing.