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Safety of steel structures under the influence of fire action (CROSBI ID 491311)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Boko, Ivica ; Peroš, Bernardin Safety of steel structures under the influence of fire action // Response of Structures to Extreme Loading : CD-ROM / Ghobarah, Ahmed ; Gould, Philip (ur.). Toronto: Elsevier, 2003

Podaci o odgovornosti

Boko, Ivica ; Peroš, Bernardin

engleski

Safety of steel structures under the influence of fire action

The paper presents the analysis of the influence of various types of actual fire loads upon the given industrial structure - a warehouse steel hall. The simulation included several different fire loads with different quantities of combustible material and different floor surfaces of the structure covered with combustible material. By applying the model of zones, 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 extreme temperature influence upon the load-bearing steel structure. The obtained temperature curves were compared to a standard EUROCODE temperature curve. It was proved that for large closed spaces (e.g. industrial halls) the action of actual fire loads cannot be computed by applying the standard curve but by determining actual temperature curves as a function of time. Heat transfer through the basic material was modelled by using a transient, non-linear model according to the obtained values of extreme temperature curves. The paper also includes the analysis of the state of extreme temperatures in the case of steel structure protection by incombustible mineral plates. The safety of steel structures expressed by the safety index * = beta was also analysed for the extreme limit state and the serviceability limit state both for the combinations of permanent fire action and accidental fire action upon the structure. These investigations of the actual temperature-time parameter curves, for large compartments and different fire loads have been carried out in Croatia within the National Application Documents in the field of accidental fire action.

Actual Fire Load ; Extreme Temperature Curves ; Safety of Structures ; National Codes

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Podaci o prilogu

2003.

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objavljeno

Podaci o matičnoj publikaciji

Response of Structures to Extreme Loading : CD-ROM

Ghobarah, Ahmed ; Gould, Philip

Toronto: Elsevier

Podaci o skupu

Response of Structures to Extreme Loading

predavanje

03.08.2003-06.08.2003

Toronto, Kanada

Povezanost rada

Građevinarstvo