composite slabs; partially protected; fire design; membrane action
Abstract :
[en] The paper presents a numerical investigation, done with the computer program SAFIR, in order to obtain simpler finite element models for representing the behaviour of the partially protected composite steel concrete slabs in fire situation, considering the membrane action. Appropriate understanding and modelling of the particular behaviour of composite slabs allows a safe approach, but also substantial savings on the thermal insulation that has to be applied on the underlying steel structure. The influence of some critical parameters on the behaviour and fire resistance of composite slabs such as the amount of reinforcing steel, the thickness of the slab and the edge conditions is also highlighted. The numerical models are calibrated using the results of three full scale fire tests on composite slabs that have been performed in recent years.
Disciplines :
Civil engineering
Author, co-author :
Zaharia, Raul; The “Politehnica” University of Timisoara
Vulcu, Christian; The “Politehnica” University of Timisoara
Vassart, Olivier; ArcelorMittal, Esch/Alzette
Gernay, Thomas ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu
Franssen, Jean-Marc ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu
Language :
English
Title :
Numerical analysis of partially fire protected composite slabs
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