This research studies experimentally the ductility behaviour of reinforced concrete beams with different number of lap spliced bars at the zone of maximum bending. The effect of the transmitted force in the spliced bars by bonding through the surrounding concrete on the ductility of these beams is illustrated. The experimental study comprises ten different reinforced concrete beams. The beams were tested under the action of two symmetrically concentrated loads. The main variables are the number of lap spliced bars and the type of reinforcing steel. The yield load, the ultimate load, the deflection, and the strain were determined. The results of the experimental program are analyzed and discussed. Conclusions based on the executed study are drawn and recommendations are suggested.