During the last twenty years the concept of risk has been thoroughly exploited in several firesafety engineering applications. However, fire safety design of structures has remained fairlyconsequence-based and only implicitly considers the impact of the scenario frequency. Thus, thepossibilities to apply an active approach to ensure that the temperature does not reach a level that willcause mechanical distress to the structure are limited. Current design practice results in an unknownlevel of risk and a switch towards a probabilistic approach would be beneficial to designers as well asregulators. This paper reviews the current design practice on fire safety of structures with focus onrisk and uncertainty in order to support the development of a probabilistic model code on fire safetydesign of structures. Practical implications with current practice are identified and necessary steps thatwill support the future development of a model code will be proposed.
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