Steel fiber reinforced concrete is a material the tensile properties of which are improved by the bridging effect of fibers. It is still necessary to make clear its mechanical properties under variousloading in order to apply steel fiber reinforced concrete to general concrete structures. In this study the pullout properties of three kinds of steel fibers under repeated loading are investigated experimentally. Based on the experimental results a model to express the pullout properties is developed using a multi-linear model.
