TY JOUR TI ACCURACY OF THE NUMERICAL DIAGRAM METHOD FOR CALCULATING BAR REINFORCED CONCRETE ELEMENTS KW reinforced concrete KW nonlinear deformation model KW diagram method KW deformation diagrams KW numerical method KW error JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Radaikin, O.V. AU Sabitov, L.S. AU Klyuev, S.V. AU Akhtyamova, L.S. AU Arakcheev, T.P. AU Darvish, A.. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov