%0 Journal Article %T MODAL ANALYSIS OF MULTILEVEL CONCRETE FRAMEWORK AFTER FIRE EXPOSURE %A Chapidze, O.D. %A Zhukov, D.I. %K fire impact, fire accident, fire resistance, reinforced concrete, vibrations %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2019 %N 4 %P 7 %I Belgorod State Technological University named after V.G. Shukhov