TY JOUR TI THE CALCULATING METHOD OF THE DEFLECTION IN BENDING CONCRETE ELEMENTS OF RECTANGULAR CROSS SECTION AT ANY STAGE OF THEIR LOADING KW deflection of the beam KW sectional curvature KW сracked-section KW deformation calculation model KW the state diagram of concrete and reinforcement KW bent element KW a rectangular cross-section KW numerical experiment JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kocherzhenko, V.. AU Nikulina, Y.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov