摘要
通过7根芳纶纤维布加固钢筋混凝土梁的抗剪性能试验,研究了芳纶纤维布的预应力水平及加固形式对混凝土梁抗剪承载力的影响。试验结果表明,带永久锚具的预应力芳纶纤维布加固混凝土梁与非预应力芳纶纤维布加固混凝土梁相比,其开裂荷载显著提高,屈服荷载与极限荷载明显提高;预应力芳纶纤维布加固混凝土梁的抗剪承载力随着纤维布预应力水平的提高而增大。
Based upon the experimental study on shear bearing capacity of seven strengthening RC beams using aramid fiber reinforced plastic （AFRP） sheets, the effects of different prestress levels and different shear strengthening measures on shear bearing capacity of RC strengthening beams were researched. The experimental results show that as compared with the beams strengthened with non-prestressed AFRP sheets, the initial cracking load of the beam strengthened with prestressed AFRP sheets is increased significantly, at the same time, the yield load and ultimate load are increased significantly; when the prestressed level of AFRP sheet is gradually increased, the shear bearing capacity of the strengthened beams is also gradually increased.
出处
《工业建筑》
CSCD
北大核心
2006年第4期19-22,共4页
Industrial Construction
基金
北京市自然科学基金重点项目(编号:8051001)
北京市教委项目(编号:KM10005007)
