Performance-based fire design of a 14-story residential mass timber building

Salminen, Mikko; Hietaniemi, Jukka

doi:10.1201/9781315107202-7

Cited by 2 publications

(2 citation statements)

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“…The parameter z is used to rank smoke risk and is taken as LC 50 , i.e., z = LC 50 (6) Applying fire retardant additives can reduce the values of thermal parameters x and y. However, z would be increased because fire retardation might result in incomplete combustion and, hence, a higher concentration of carbon monoxide.…”

Section: Recommendation On Assessing Smoke Hazardmentioning

confidence: 99%

“…Lower amounts of greenhouse gas emission and energy demand are conducive to producing a green environment. Timber buildings can be much taller than before [5][6][7][8], with new products including cross-laminated-timber (CLT), laminated veneer lumber (LVL) and gluelaminated timber (Glulam). Fire safety concerns for timber buildings have been reported in many open forums [2,[9][10][11][12] for 20 years.…”

Section: Introductionmentioning

confidence: 99%

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Smoke Hazards of Tall Timber Buildings with New Products

et al. 2022

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Timber buildings can now stand very tall using new products. As timber materials are expected to be easily ignitable, the fire hazard of timber is a concern. Charring of the timber surface would maintain structural stability, but would also be accompanied by smoke. Although treating timber products with fire retardants would delay the ignition time under low radiative heat flux, toxic combustion products and unburnt fuel would be emitted immediately upon burning. More smoke and higher toxic gas concentrations such as carbon monoxide would be given off upon burning some fire retardants under high flashover heat fluxes. Due to the fast upward movement of smoke under stack effect, spreading of toxic smoke in tall timber buildings would lead to a hazardous environment. Engineered timber consists of derivative timber products. New engineered timber products are manufactured with advanced technology and design, including cross-laminated-timber (CLT), laminated veneer lumber (LVL) and glue-laminated timber (Glulam). The fire behaviour of timber products has been studied for several decades. However, the smoke hazards of using new timber products in building construction should be monitored. The objective of this study is to inspire stakeholders in fire safety of timber buildings, inter alia smoke hazards, to use new timber products to build tall buildings.

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Section: Recommendation On Assessing Smoke Hazardmentioning

confidence: 99%