Empirical studies of structural material with given parameters at various fire factors

The results are given of numerical experiments on heating of steel structures of buildings roofing by solving a heat engineering problem in conditions of non-stationary heat influence at standard temperature mode according to GOST 30247.0 and at fire temperature mode. The estimation of equivalent duration of fire for steel roofing structures is made. For modeling of heating of steel structures the computational system allowing to carry out thermal engineering calculation of a structure on the basis of its program model was used. For estimation of fire temperature modes the software package "Fire Dynamics Simulator" (FDS) was used, which implements the field mathematical model.