According to the test consequences, equations of average bondstress, relationship between the maximum localbondstress and concrete cubic compression strength are proposed.
根据试验结果，拟合了平均粘结强度表达式，得到了局部粘结应力最大值和混凝土立方体抗压强度的关系。
2
The effect of bond length on bond performance is examined. The failure mode, the FRP strain and bondstress distributions, and the localbond -slip relationship are all discussed.
In order to study the slip between rebar and concrete, the fundamental equations are analyzed and the 2nd order differential equation of the relation between bondstress and local slip are obtained.