METHOD TO DETERMINE FIRE-RESISTANCE OF FACED METAL COLUMNS OF BUILDING

FIELD: fire fighting, particularly to provide fire safety of buildings and building structures. ^ SUBSTANCE: method to perform tension member tests without member destructing to determine simple quality indicia and to estimate indicia values by means of static check involves determining metal column dimensions, pattern of weak column sections heating during fire, column end fastening conditions, density, humidity and thermal diffusion indicia of facing material, as well as basic load values in weak sections of load-bearing column rods; determining fire-resistance rating of columns from nomographic chart. ^ EFFECT: increased reliability and reduced costs of static check and non-destructive test. ^ 15 cl, 2 dwg, 1 tbl