Original scientific paper
Safety of steel structures under the influence of fire loads
Ivica Boko
Vinko Jović
Bernardin Peroš
Abstract
The paper presents an analysis of the influence of various types of actual fire loads upon a given industrial structure - a steel warehouse. Six different fire loads were simulated with different quantities of combustible material and by varying floor surfaces covered by combustible material. Using a zone model, based on an approximate formulation, for different fire loads, obtained by varying the surface of ventilation openings, it was possible to obtain the temperature curves as a function of time which were used as the temperature load upon the supporting steel structure. The model of transient non-linear heat transfer was used to analyse the influence of the shape of the crosssection of the steel structure in the case of standard fire. For specific cross-sections of a steel structure (nonprotected and protected) the temperatures for six different cases of actual fires were determined.
Keywords
actual fire load, transient non-linear heat transfer, temperature curves, section factor
Hrčak ID:
317043
URI
Publication date:
19.12.2002.
Visits: 26 *