Reference : Considering the effects of localised fires in the numerical analysis of a building struc...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/29654
Considering the effects of localised fires in the numerical analysis of a building structure
English
Franssen, Jean-Marc mailto [Université de Liège - ULg > Département Argenco : Secteur SE > Ingénierie du feu >]
Pintea, Dan [> > > >]
Dotreppe, Jean-Claude mailto [Université de Liège - ULg > Département Argenco : Secteur SE > Struct. en béton]
2007
Fire Safety Journal
Elsevier Sci Ltd
42
6-7, SEP-OCT
473-481
Yes (verified by ORBi)
International
0379-7112
Oxford
[en] localised fire ; fire resistance ; numerical model
[en] The methodologies that are used for analysing the fire behaviour of a structure that is subjected to a uniform thermal situation cannot be applied when the fire is localised. The concept of "zoning" can be applied: the structure is divided into several zones in which the situation is approximated as uniform. It is shown here that this division can lead to spurious forces in the structure. The structural code of the first author has been adapted in order to accommodate a continuous spatial variation of the fire environment. A series of uncoupled 2D thermal analyses is performed along the length of the beam finite elements and a series of ID thermal analyses is performed across the thickness of the shell finite elements. After a discussion of the concept and the particularities dictated by the continuous thermal environment, the methodology utilised is explained and is shown in an example consisting of a composite steel concrete car park subjected to a localised fire of the type given in Eurocode 1. (C) 2007 Elsevier Ltd. All rights reserved.
http://hdl.handle.net/2268/29654
10.1016/j.firesaf.2007.04.006

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