%0 Journal Article %T FORECASTING OF THE RESIDUAL LIFE OF METAL BEAMS SUB-CRANE OF INDUSTRIAL BUILDINGS OF LONG SERVICE LIFE %A Markeev, V.S. %A Borkov, P.V. %K industrial safety, residual life, physical wear, crane girder, damage, technical condition category %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2021 %N 6 %P 8 %I Belgorod State Technological University named after V.G. Shukhov