temperature; steel; joints; numerical analysis; 3D
Abstract :
[en] A numerical study was undertaken to investigate the temperature field in steel joints and to compare the temperatures in the joints with the temperatures of the adjacent steel members on the hypothesis that the thermal protection is the same on the joint and in the members. Very brief information is given on the numerical model, supplemented with parametric studies made in order to determine the required level of discretization in the time and in the space domain. A simplified assumption for representing the thermal insulation is also discussed and validated. Different numerical analyses are performed, with a variation of the following parameters: (i) type of joints, from very simple to more complex configurations, with welds and/or bolts, all of them representing joints between elements located in the same plane; (ii) unprotected joints or protected by one sprayed material; (iii) ISO, hydrocarbon or one natural fire scenario. The fact that the thermal attack from the fire might be less severe because the joints are usually located in the corner of the compartment is not taken into account. Copyright (C) 2004 John Wiley Sons, Ltd.
Disciplines :
Materials science & engineering
Author, co-author :
Franssen, Jean-Marc ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu
Language :
English
Title :
Numerical determination of 3D temperature fields in steel joints
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Bibliography
Draft prEN 1993-1-2. Eurocode 3: Design of Steel Structures-Part 1-2: General Rules-Structural Fire Design. Third preliminary draft, May 2001.
ENV 1991-1-2. Eurocode 1-Basis of Design and Actions on Structures-Part 2-2: Actions on Structures-Actions on Structures Exposed to Fire.
ENV 1993-1-2. Eurocode 3: Design of Steel Structures-Part 1-2: General Rules-Structural Fire Design. CEN: Brussels, May 1995.
Franssen JM. SAFIR. A Thermal/Structural Program Modelling Structures under Fire. Proc. NASCC 2003, A.I.S.C. Inc., Baltimore, April 2-4 (2003).
Kruppa J. Résistance au Feu des Assemblages par Boulons Haute Résistance. C.T.I.C.M.: Puteaux, France, June 1976.
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