Review article

The article provides general information on external reinforcement systems with the use of fiber reinforced polymers (FRP) with prestressing for strengthening of reinforced concrete structures. A classification of existing systems is submitted. The author has performed calculation of the prestressing force taking into account all prestress losses for an externally strengthened reinforced concrete element. Herewith, there were applied steel plates, FRP laminates, based on the methodology set out in SP 63.13330, taking into account the properties of each of the prestressed materials and different levels of initial prestressing.