steel structures; CFD-FE coupling; weak coupling; open car park; fire behaviour
Abstract :
[en] Purpose: This paper aims to present the assumptions and the issues that arise when developing an integrated modelling methodology between a computational fluid dynamics (CFD) software applied to compartment fires and a finite element (FE) software applied to structural systems.
Design/methodology/approach: Particular emphasis is given to the weak coupling approach developed between the CFD code fire dynamics simulator (FDS) and the FE software SAFIR. Then, to show the potential benefits of such a methodology, a multi-storey steel-concrete composite open car park was considered.
Findings: Results show that the FDS–SAFIR coupling allows overcoming shortcomings of simplified models by performing the thermal analysis in the structural elements based on a more advanced modelling of the fire development, whereas it appears that the Hasemi model is more conservative in terms of thermal action.
Originality/value: A typical design approach using the Hasemi model is compared with a more advanced analysis that relies on the proposed FDS–SAFIR coupling.
Disciplines :
Civil engineering
Author, co-author :
Tondini, Nicola; University of Trento > Department of civil, environmental and mechanical engineering
Morbioli, Andrea; University of Trento > Department of civil, environmental and mechanical engineering
Vassart, Olivier; ArcelorMittal > ArcelorMittal Global R&D
Lechêne, Sullivan; C.S.T.B.
Franssen, Jean-Marc ; Université de Liège > Département ArGEnCo > Ingénierie du feu
Language :
English
Title :
An integrated modelling strategy between a CFD and an FE software: Methodology and application to compartment fires
Publication date :
2016
Journal title :
Journal of Structural Fire Engineering
ISSN :
2040-2317
Publisher :
Multi-Science Publishing, Brentwood, United Kingdom
Volume :
7
Issue :
3
Pages :
217-233
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
FIRESTRUC
Funders :
RFCS - European Commission. Research Fund for Coal and Steel [BE]
Cooper, L.Y. and Franssen, J.M. (1999), "Basis for using fre modeling with 1-D thermal analyses of partitions to simulate 2-D and 3-D structural performance in real fres", Fire Safety Journal, Vol. 33 No. 2, pp. 115-128.
Deckers, X., Haga, S., Tilley, N. and Merci, B. (2013), "Smoke control in case of fre in a large car park: CFD simulations of full-scale confgurations", Fire Safety Journal, Vol. 57, pp. 22-34.
Decreto Ministeriale (DM) 14 January (2008), Norme Tecniche per le Costruzioni, Consiglio Superiore dei Lavori Pubblici.
EN 1990 (2002), Eurocode 0: Basis of Structural Design, European Standard, CEN.
EN 1991-1-2 (2004), Eurocode 1: Actions on Structures-Part 1-2: General Actions-Actions on Structures Exposed to Fire, European Standard, CEN.
EN 1992-1-2 (2004), Eurocode 2 Design of concrete structures Part 1-2: General rules-Structural fre design, European Standard, CEN.
EN 1994-1-2 (2005), Eurocode 4: Design of Composite Steel and Concrete Structures Part 1-2: General Rules-Structural Fire Design, European Standard, CEN.
Fellinger, J., Kenyon, Y., Breunese, A. and Lemaire, A. (2004), "A coupled CFD-FEA study of a tunnel structure exposed to a fre", in Grayson, S.J. (Ed.), Interfam 2004-10th International Fire Science & Engineering Conference, Interscience Communications Ltd, London, Vol. 2004 No. 2, pp. 1349-1360.
Franssen, J.M. (2005), "SAFIR: a thermal/structural program for modeling structures under fre", Engineering Journal, Vol. 42 No. 3, pp. 143-158.
INERIS (2001), "Parcs de Stationnement en Superstructure largement ventiles", Avis D'expert Sur les Scénarios D'incendie, CTICM.
McGrattan, K., Klein, B., Hostikka, S. and Floyd, J. (2007), Fire Dynamics Simulator (Version 5): User's Guide, National Institute of Standards and Technology (NIST).
Ma, T.G. and Quintiere, J.G. (2003), "Numerical simulation of axi-symmetric fre plumes: accuracy and limitations", Fire Safety Journal, Vol. 38 No. 5, pp. 467-492.
Pchelintsev, A., Hasemi, Y., Wakamatsu, T. and Yokobayashi, Y. (1997), "Experimental and numerical study on the behavior of a steel beam under ceiling exposed to a localized fre", Fire Safety Science-Proceedings of the ffth International Symposium, Melbourne, 3-7 March, Vol. 97, pp. 1153-1164.
Welch, S., Miles, S., Kumar, S., Lemaire, T. and Chan, A., (2008), "FIRESTRUC-Integrating advanced three-dimensional modelling methodologies for predicting thermo-mechanical behaviour of steel and composite structures subjected to natural fres", in Karlsson, B. (Ed.), Fire Safety Science-Proceedings of the Ninth International Symposium, International Association for Fire Safety Science, Reykjavik, pp. 1315-1326.
Zhao, S.Z., Xu, X.Y. and Collins, M.W. (1998), "The numerical analysis of fuid-solid interactions for blood fow in arterial structures part 2: development of coupled fuid-solid algorithms", Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, Vol. 212 No. 4, pp. 241-252.