TY JOUR TI CALCULATION OF FIBER-REINFORCED CONCRETE STRUCTURES TAKING INTO ACCOUNT PHYSICAL NONLINEARITY KW fiber-reinforced structures KW glass and carbon fibers KW physical nonlinearity KW stiffness matrix KW shear diagram KW finite element interpretation of the method of additional loads JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Panchenko, L.A. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov