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De Sanctis G., Faber M. and Fontana, M., 2014. Assessing the Level of Safety for Performance Based and Prescriptive Structural Fire Design of Steel Structures. Fire Safety Science 11: 996-1009. 10.3801/IAFSS.FSS.11-996
The level of safety in structural fire safety is implemented by combining passive and active fire safety measures. Prescriptive and some performance based codes provide requirements to achieve this level of safety without explicitly quantifying it. Here, a reliability based method is used to quantify the level of safety of a design. A generic representation of the building facilitates the application of the methodology on different buildings and to consider the requirements of the codes. Engineering models are used to consider the effect of fire safety measures including the fire brigade intervention under realistic fire conditions. The uncertainties associated with these engineering models are considered through a probabilistic approach. The reliability of the structure is assessed through an advanced Monte Carlo technique called subset simulation. The methodology is applied for retail buildings. The benefits using performance based codes are addressed and compared with the results of prescriptive codes. The methodology can be used for verifying equivalency in fire safety design as well.
fire brigade intervention, structural design, performance based design, reliability
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