【摘要】 本文根据弹性梁理论和部分组合截面假定,并且考虑了钢筋混凝土梁和芳纶纤维剪切变形的影响,对两点集中加载情况下的芳纶纤维加固钢筋混凝土梁的界面粘结剪应力和正应力进行了推导分析,由纤维端部边界条件得出了两种应力的解析解,根据试验梁的基本参数绘出了界面应力的分布曲线,找到了界面应力的分布规律,由此提出了降低纤维布端部应力集中的方法,可供施工参考使用。更多还原

【Abstract】 According to elastic theory and the assumption of partial combination section,considering the effect of shear deformation of RC beam and AFRP,this paper provides the analytical solution of the bonding shear stress and normal stress between the concrete surface and AFRP.In addition,with the application of boundary condition,this paper gives the interfacial shear stress and normal stress in the adhesive layer for two point loads,and plots the distribution curve of interfacial shear stress and normal stress,which demonstrates the distribution characters of stress in the adhesive layer.Finally,this paper presents methods for decreasing stress concentration at the end of AFRP,which can afford reference for the project.更多还原