TY JOUR TI STRESS-STRAIN STATE OF RECONSTRUCTED CONCRETE ELEMENTS UNDER BENDING AND TWISTING DURING DYNAMIC LOADING KW reinforced concrete structures KW short-term dynamic loads KW crack resistance KW theoretical modeling KW experimental methods KW and complex stress state JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Esipov, S.M. AU Mishenin, O.V. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov