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Model uncertainty in a parametric fire curve approach [Elektronski vir] : a stochastic correction factor for the compartment fire load densityPut, Florian ...A commonly used approach to represent the thermal load in a compartment fire is the Eurocode Parametric Fire Curve (EPFC), which specifies gas temperatures (or rather adiabatic surface temperatures). ... Recognizing the significant deviations between real fires and the EPFC framework, the concept of model uncertainty is explored. This study does not aim to assess or improve the EPFC, but introduces a model uncertainty, allowing for reliability-based structural fire engineering (SFE). It presents a stochastic correction factor for the fire load density, based on the maximum temperature in steel sections. The focus is on the fire load density, but in general other parameters can be jointly taken into account as well. This correction factor considers protected and un- protected sections, incorporating variations in section factor and protection thickness. The findings reveal that the fire load density within the EPFC framework can be modified to better represent the severity of fire ex- periments. This approach ensures physical consistency of the obtained compartment gas temperatures, as opposed to alternative approaches for addressing the EPFC model uncertainty. While promising results are evident in this proof of concept, exploration for other types of structural elements and evaluation for structural systems is necessary before integration into design practices.Source: Fire safety journal [Elektronski vir]. - ISSN 1873-7226 (Vol. 144, [article no.] 104113, Mar. 2024, str. 1-11)Type of material - e-article ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 191319043
Author
Put, Florian |
Lucherini, Andrea |
Merci, Bart |
Van Coile, Ruben
Topics
gradbeni požarni inženiring |
požari v prostorih |
gostota požarne obremenitve |
jeklene konstrukcije |
zanesljivost |
verjetnost odpovedi |
structural fire engineering |
compartment fires |
fire load density |
steel structures |
reliability |
probability of failure
Author | Put, Florian ... |
Title | Model uncertainty in a parametric fire curve approach [Elektronski vir] : a stochastic correction factor for the compartment fire load density |
Publication date | 2024-02-05 |
COBISS.SI-ID | 191319043 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International |
Embargo | Postpone publication for public until 2026-02-05 |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Fire-safe Sustainable Built Environment | FRISSBE | 952395 |
European Commission |
Characterization of the thermal exposure and material properties of concrete during the fire decay phase for performance-based structural fire engineering | 1137123N |
Research Foundation - Flanders |
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https://www.sciencedirect.com/science/article/pii/S0379711224000250 |
https://dirros.openscience.si/IzpisGradiva.php?id=18677 |
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Database name | Field | Year |
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Put, Florian | |
Lucherini, Andrea | 56534 |
Merci, Bart | |
Van Coile, Ruben |
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