Abstract
The finite element model for bond between the reinforcement and the surrounding concrete was newly proposed. The bond characteristics were expressed as the isoparametric quadratic linear element and it was based on the non-linear bond stress-slip relationship. Two-dimensional finite element analysis on the pull-out test was carried out by the use of this model and comparisons were made with test results. The difference of the bond characteristics between two kinds of fiber reinforced plastic rods, i. e. twisted carbon fiber rod and braided aramid fiber rod has been numerically presented.