20.500.12556/DiRROS-29407 Charring and in-depth thermal penetration within cross-laminated timber elements in large-scale compartment fires The fire performance of engineered timber structures is fundamentally controlled by the coupling between the in-depth temperature evolution of the timber elements and the internal compartment fire dynamics. Charring and heating of the timber during and after a fire are known to significantly degrade the mechanical capacity of timber elements, while also influencing the intensity and duration of burning by generating additional fuel and potentially inducing bond line failures. A series of large-scale fire experiments in cross-laminated timber (CLT) compartments with varying configurations of exposed timber surfaces and movable fuel loads has been performed to investigate these interrelationships, by measuring the charring, thermal penetration, and exposure conditions of the CLT elements. The extent of charring and in-depth heating was found to be primarily determined by the duration of heating—associated to the movable fuel load characteristics and occurrence of self-extinction or char fall-off. Significant in-depth temperature rise beyond the char front continued beyond the decay of the fire and cessation of charring. These findings highlight the importance of designing timber compartments to limit the duration of burning, and to account for the structural implications of thermal penetration during the cooling phase. compartment fires heat transfer thermal penetration large-scale mass timber cross-laminated timber charring char fall-off performance-based design požari v posameznih prostorih prenos toplote toplotna penetracija velikopotezni projekti masivni les križno lepljeni les ožganje odpadanje ožganega materiala na zmogljivosti temelječe projektiranje true false true Elsevier Angleški jezik Slovenski jezik Neznano 2026-05-18 08:56:43 2026-05-18 09:00:41 2026-05-19 12:15:22 0000-00-00 00:00:00 2026 0 0 V uvodu navedeno: This special issue is based on the selection of works presented at the 15th International Symposium on Fire Safety Science (IAFSS 2026) that will be held on June 8 – 12 2026 in La Rochelle, France.; str. 1-14 [article no.] 104817 Vol. 163 Sep. 2026 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-04-07 2028-04-07 62 1873-7226 10.1016/j.firesaf.2026.104817 277985027 https://doi.org/10.1016/j.firesaf.2026.104817 0 bc038c68-5286-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44081 RAZ_Torero_Jose_L._2026.pdf RAZ_Torero_Jose_L._2026.pdf 1 14F2F3518CC59E93352350F5E71B2D2B e9ee541e5121b177c20e115a696c8b31fc1ed62a28e5862e0420da0a1555c66b 41362cc0-5287-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44082 Zavod za gradbeništvo Slovenije 0 0 0