20.500.12556/DiRROS-18677 Model uncertainty in a parametric fire curve approach a stochastic correction factor for the compartment fire load density 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. structural fire engineering compartment fires fire load density steel structures reliability probability of failure gradbeni požarni inženiring požari v prostorih gostota požarne obremenitve jeklene konstrukcije zanesljivost verjetnost odpovedi true false true Elsevier Angleški jezik Slovenski jezik © 2024 Elsevier Ltd. All rights reserved. Neznano 2024-04-15 10:53:11 2024-04-17 08:34:22 2024-04-24 03:39:24 0000-00-00 00:00:00 2024 0 0 Opis vira z dne 4. 4. 2024; Nasl. z nasl. zaslona; str. 1-11 Vol. 141, [article no.] 104113 Mar. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-02-05 2026-02-05 62 1873-7226 10.1016/j.firesaf.2024.104113 191319043 RAZ_Put_Florian_2024.pdf RAZ_Put_Florian_2024.pdf 1 85098953ED252D2897926AD343EB9C6F eb572c15ac96099779a093ae8058de7e302911207492df6664b9418ba69dda4d b6e84007-007c-11ef-ab10-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25689 https://doi.org/10.1016/j.firesaf.2024.104113 0 ad0a645a-007c-11ef-ab10-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25688 Zavod za gradbeništvo Slovenije 0 0 0