Abstract：A lot of research has been conducted in order to replace steel rebars or pre-stressed steel rebars with glass fiber-reinforced polymer (GFRP) rebars in concrete structures. Current research on the shear properties of GFRP-reinforced concrete structures primarily focuses on beams with small-size rectangular cross-sections, and few studies have been conducted to investigate the oblique-section shear strength of structures with circular cross-sections. Full-scale specimens of real engineering piles were fabricated and tested with two-point and three-point loading condition. The shear failure characteristic of GFRP-reinforced concrete was obtained. Based on the experimental results, the ACI code and Chinese concrete design standards, the shear fracture resistant equations for GFRP-reinforced concrete structures with circular cross-sections were deduced. The analysis results agree well with the experiment data, which proves the accuracy of the analytic method. Furthermore, the proposed model was utilized to calculate and verify the safety of foundation piles in one of Beijing subway stations during the shielding process. Based on the analysis results, a suggestion is drawn that it is necessary to increase reinforcement ratio in the pile.
刘军 王芳 周洪 王恩志 曹鹏. 圆形截面玻璃纤维筋混凝土桩体抗剪承载力研究[J]. 土木工程学报, 2016, 49(9): 103-109.
Liu Jun Wang Fang Zhou Hong Wang Enzhi Cao Peng. Study on shear strength of glass fiber-reinforced polymer (GFRP) rebar concrete piles with circular cross-sections. 土木工程学报, 2016, 49(9): 103-109.
