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A platform for research: civil engineering, architecture and urbanism
Safety of steel structures exposed to fire
The fire action for a steel hall with dimensions 40.0 x 60.0 x 7.5 m was simulated by applying the zone model, based on an approximate formulation. The results obtained by employing the zone model in 6 cases of the real fire load show that the temperature in the compartment depends primarily upon the combustible material quantity, the floor surface covered by combustible material, the surface of ventilation openings and the radial distance from the fire centre. It has been proved that the application of the Standard temperature curve is not acceptable for large compartments since it is evident that the temperature action differs in space and depends upon the mentioned parameters so that it is necessary to perform computations for each actual fire load. It has been determined that for each fire load, depending upon the required fire resistance (e.g. 30 min) the temperature in the hall does not exceed 300 C deg, so that the protection of the structure is not necessary in such cases. It has also been shown that by protecting the steel structure the temperature is significantly reduced which improves the structure safety. The investigations of the actual time-temperature parameter curves and the determination of the respective values of the safety index ß in large industrial halls for different fire loads have been carried out within the NAD (National Application Documents) in the field of fire action.
Safety of steel structures exposed to fire
The fire action for a steel hall with dimensions 40.0 x 60.0 x 7.5 m was simulated by applying the zone model, based on an approximate formulation. The results obtained by employing the zone model in 6 cases of the real fire load show that the temperature in the compartment depends primarily upon the combustible material quantity, the floor surface covered by combustible material, the surface of ventilation openings and the radial distance from the fire centre. It has been proved that the application of the Standard temperature curve is not acceptable for large compartments since it is evident that the temperature action differs in space and depends upon the mentioned parameters so that it is necessary to perform computations for each actual fire load. It has been determined that for each fire load, depending upon the required fire resistance (e.g. 30 min) the temperature in the hall does not exceed 300 C deg, so that the protection of the structure is not necessary in such cases. It has also been shown that by protecting the steel structure the temperature is significantly reduced which improves the structure safety. The investigations of the actual time-temperature parameter curves and the determination of the respective values of the safety index ß in large industrial halls for different fire loads have been carried out within the NAD (National Application Documents) in the field of fire action.
Safety of steel structures exposed to fire
Peros, Bernardin (author) / Boko, Ivica (author)
2005
8 Seiten, 8 Bilder, 2 Tabellen, 6 Quellen
Conference paper
English
Safety of steel structures exposed to fire
| British Library Conference Proceedings | 2005
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Probabilistic Analysis of Fire-exposed Steel Structures
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