Borsuk O. Improvement of the Method of Calculation Estimation of Fire Resistance of Steel Beams with Fire-protective Mineral Wool Facing

Thesis is devoted to solving an urgent scientific and technical problem of disclosure of regularities of dependence of time of occurrence of the moment of detachment of mineral wool fire-retardant facing on constructive parameters of steel beams with such type of fire protection as a scientific basis for improving the methods of calculated assessment of fire resistance of these structures. According to the results of research for the first time: – taking into account the identified patterns of influence of structural parameters, as well as the load of steel beams on the time of detachment of mineral wool fire protection cladding under the influence of standard fire temperature, substantiated and proposed an improved method for calculating fire resistance of structural elements of this type. The application of calculated standard methods of calculation estimation of fire resistance of steel beams with fire-retardant facing to determine the appropriate initial data for the design of structures with their use was further developed.