Strengthening RC beams with externally bonded fiber reinforced polymer (FRP) composite is one of the techniques developed in recent years. High strength carbon, glass and aramid composites are being promoted as an alternative to steel plates. The major advantages in using fiber reinforced polymer composites are: lightweight, high strength, corrosion resistance and the ease of application. Since 1980 many researchers studied the behavior of strengthened beams with composite materials subject to concentrated or uniformly distributed loads. This paper presents the results of a laboratory experiment performed, in order to determine the influence that the application of carbon fiber material has on beams required to a concentrated force applied at the middle opening.