000			02333nab a2200217 4500
005			20260520001138.0
008			260224s2015 xxu
245	0	0	_aThe concepts of safety level and safety margin _bFramework for fire safety design of novel buildings
260			_a _b _cmar. 2015
270			_a06/01/2020 ; 06/01/2020
300			_a32 p. ; 409-441
520			_aTranscripción del resumen del autor. This article discusses how the concepts of safety level and safety margin have been approached in recognized peer-reviewed journals within the field of fire safety science. The aim is to explore the scientific efforts that have been made to advocate principles for dimensioning fire safety arrangements in buildings. We restrict our discussion to novel buildings in the sense of lack of similar constructions with relevant long term experience. Due to increasing complexity in buildings, infrastructures, technical systems and society in general, we argue that traditional fire safety science based on natural science principles alone is severely limited. We argue that fire safety and safety margins are emergent properties of socio-technical systems that need to be managed rather than verified. The search for objectivity and mechanistic decision criteria is futile and diverts attention from the main purpose of engineering: to guide decisions during the whole design process and thus enable safe operation. An adapted framework for fire safety engineering is proposed, built around traditional fire safety engineering principles, and founded on constructivist systems theory. The focus is observable quantities and how these quantities can be managed during design and operation of a building project. The framework eases the involvement of stakeholders who are required to consider the safety aspects of the building design. The end goal of fire safety design in our framework is the development of a fire safety control structure that must be enforced to keep systems in a safe state, in which safety margins are deemed sufficient.
581			_a2
773	0		_tFire Technology _g
942			_cARTICULO
100	1		_aBjelland, Henrik _959288
100	1		_aNja, Ove _954849
100	1		_aHeskestad, Atle William _959289
100	1		_aBraut, Geir Sverre _959290
999			_c193243 _d193243