Estimation of Fire Resistance of a Building Structure by the Criterion of Heat-Insulating Ability

International Multi-Conference on Industrial Engineering and Modern technologies

Ilyin, N.A.^1 ; Panfilov, D.A.^1 ; Komov, E.M.^1

Samara State Technical University, 194 Molodogvardeyska, Samara

443001, Russia^1

关键词: Analytical equations;    Geometric dimensions;    Heating temperatures;    Initial temperatures;    Non destructive testing;    Statistical quality control;    Structural buildings;    Technical solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/463/4/042024/pdf
DOI  :  10.1088/1757-899X/463/4/042024

来源: IOP

【 摘 要 】

Estimation of fire resistance of the building envelope (internal walls, slabs) is carried out without destruction, according to a set of single indicators of the quality of the building element. To do this, determine the geometric dimensions of the enclosing structure (slabs, walls), the scheme for heating the design section under fire conditions, the thermal diffusion coefficient of the structural building material, reveal the initial temperature of the body of the enclosing structure, the maximum permissible temperature and the critical heating temperature of the unheated surface of the structure, and, using the analytical equation (1), find the limit of fire resistance of the enclosing structure on the basis of loss of heat-insulating ability. The application of the proposed technical solution of the problem makes it possible to estimate the actual fire resistance of the enclosing structure without full-scale fire impact, improves the reliability of statistical quality control and non-destructive testing, reduces the required amount of computer memory for calculating fire resistance, and reduces economic costs.