TY JOUR TI STRENGTH AND DEFORMATION OF BENDED REINFORCED CONCRETE ELEMENTS REINFORCED WITH CARBON FIBER KW reinforced concrete beam KW reinforcement KW stress-strain state KW crack resistance KW carbon fiber KW polymer composite materials JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Smolyago, G.A. AU Obernikhina, Y.L. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov