Effect of Residual Deformation of a Steel Column on its Fire Resistance under Combined Exposure "Explosion-Fire"

Abstract:

Calculations on the example of a steel column showed that with the combined effect of an explosion that causes deformation and subsequent fire, even without damaging the fire-retardant coat, there is a significant decrease in the fire resistance of the structure due to a decrease in the critical temperature. It is shown that, on the basis of the methodology proposed in this work, for hazardous operations industrial facilities, it is possible to predict the stability of steel columns in crash explosions followed by fire, as well as to recommend the values ​​of workloads and parameters of fire-retardant coats providing the necessary stability. It is also shown that when calculating the fire resistance limit of a steel structure with intumescent fire-retardant coat, it is necessary to take into account the proper heating time of steel structures until they lose strength.

• Periodical: Materials Science Forum (Volume 968)
• Pages: 288-293
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.968.288
• Online since: August 2019
• Authors: Alexey Vasilchenko*, Evgeny Doronin, Boris Ivanov, Volodymyr Konoval
• Keywords: Critical Temperature, Fire Resistance Limit, Flame-Retardant Coat, Intumescent Coating, Steel Structures

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