Abstract
There is a need to develop the generalized bond stress-slip relationship since bond characteristics between steel reinforcing bars and concrete may be influenced by various parameters. Although one of the reliable approaches is to consider the influence of steel strain in the bond model, the existing model is only based on the pull-out tests of a deformed bar embedded in massive concrete. This paper presents bond stress-slip-strain relationships of deformed bars including the effect of concrete cover thickness. The proposed model represents the post-peak behavior of bond shown in bars with small cover thickness. The model performance is demonstrated through finite element analyses of bond tests with different boundary conditions.
