The experimental results about the global behavior of ten 1:2 scaled reinforced concrete frame subject to in-plane lateral load are presented. The main objective was to generate experimental evidence about the use of steel bars within mortar bed-joints as shear reinforcement in infill walls. To achieve the objective established, eight reinforced concrete frames with masonry infill walls were built and tested in pairs, having both specimens in the pair identical characteristics except that one of them included joint reinforcement. The variables between pairs were the type of units and the aspect ratio of the wall. In addition, two bare frames with identical characteristic to the infilled frames were tested. The purpose was to investigate the effects of the infill wall on the behavior of the system to in-plane lateral load. All the specimens were tested in cantilever under reversible cyclic lateral load. To simulate gravity load, constant vertical load was applied on the top of the columns. The results indicate that, the presence of infill wall, the type of unit and the aspect ratio significantly increase the lateral resistance and reduce the deformation capacity of the system. The use of joint reinforcement had a light effect on increasing the lateral resistance and decreasing the deformation capacity of the system.