Inverted reinforced concrete, (RC), T-beams are commonly used in precast construction to carry precast slabs or T beams. Due to the rapid increase in population and high demand in use, upgrading of these structures is required. The major disadvantages of using the traditional techniques of bonding steel plates or enlarging the concrete section are refered to corrosion of steel elements and the need for technical labour and heavy equipment for installing the repair materials. Furthermore, using concrete jacket for repair increases mass and stiffness of the beams and consequently increases the applied forces due to earthquakes. This paper presents an experimental program conducted to investigate the behavior of RC inverted T-beams strengthened with fiber reinforced polymer (FRP) laminates and steel plates. The program consists of a total of six T-beams with overall dimensions equal to 460 x 300 x 1000-mm. The beams were tested under vertical loading up to failure to examine its behavior. Different FRP types, steel plates, and combinations of carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) laminates (HFRP) were attached to the beams to predict the best strengthening scheme. Anchorage system was suggested to prevent the in-plane and out-of-plane deformation of the CFRP laminates. An analytical model based on the stress-strain characteristics of concrete, steel and FRP was adopted. Design recommendations of RC inverted T-beams strengthened for shear by FRP laminates and steel plates are introduced.