The application of fire risk assessment has been recommended to support alternative solutions by demonstrating quantitatively that their fire risks are not greater than those associated with the acceptable solutions given in codes. CUrisk is used to compare life risks due to fire in mid-rise and high-rise office buildings of non-combustible, light wood frame and cross laminated timber constructions. In these buildings, the non-combustible buildings are explicitly code compliant while the others are alternative solutions. The results show that the effects of the building area, storeys and construction type on life risk are slight. Life risk depends more on design solutions as a whole than on the construction type alone. Properly protected combustible buildings do not impose higher life risk than a code compliant non-combustible building of similar design. Life risks in these buildings are very low due to being sprinklered, are limited to the occupants in the rooms of fire origin for the compartmented buildings, but are extended to the occupants in other rooms for the open floor buildings.

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Keywords Combustible construction, Fire, Life risk analysis, Non-combustible construction, Office buildings
Conference 2016 World Conference on Timber Engineering, WCTE 2016
Zhang, X, Mehaffey, J. (Jim), & Hadjisophocleous, G. (2016). Comparison of life risks due to fire in mid- and high-rise, combustible and non-combustible office buildings. In WCTE 2016 - World Conference on Timber Engineering.