华中科技大学学报（自然科学版）2025，Vol.53Issue(2)：104-110,7.DOI:10.13245/j.hust.250152
GFRP筋玄武岩纤维混凝土深梁抗剪性能
Shear performance of GFRP bars reinforced basalt fiber concrete deep beams
摘要
Abstract
In order to avoid the corrosion of steel bars and promote the application of FRP bars in various structural components,the shear performance of glass fiber reinforced polymer bars(GFRP bars)reinforced basalt fiber concrete deep beams with web reinforcement was studied.Considering the influence of shear span ratio(a/d),horizontal distribution reinforcement ratio(ρh)and vertical distribution reinforcement ratio(ρv),seven test beams were designed for shear performance test,and their failure modes,mid-span deflection,cracking load and ultimate load were analyzed.The results show that the failure modes of the seven deep beams are all diagonal compression failure,and the shear mechanism of FRP bars reinforced fiber concrete deep beams is similar to that of steel bars reinforced concrete deep beams.The decrease of shear span ratio can effectively improve the shear capacity of deep beams,from 1.1 to 0.5,and the bearing capacity is increased by 47.1%.The increase of ρh can delay the development of cracks and increase the cracking load.The maximum increase of shear bearing capacity from ρh can reach 31.4%,and the maximum increase of shear bearing capacity from ρv can reach 16.9%.Finally,the formula for calculating the shear capacity of FRP bars reinforced fiber concrete deep beams is established,and the calculated values are in good agreement with the experimental values.关键词
GFRP筋/纤维混凝土/深梁/腹筋/受剪承载力Key words
GFRP bar/fiber reinforced concrete/deep beam/web reinforcement/shear capacity分类
建筑与水利引用本文复制引用
李趁趁,魏非凡,邢枭男,朱海堂..GFRP筋玄武岩纤维混凝土深梁抗剪性能[J].华中科技大学学报（自然科学版）,2025,53(2):104-110,7.基金项目
河南省自然科学基金资助项目(232300420102). （232300420102）
