Reference : Full-scale fire test on a composite floor slab incorporating long span cellular steel...
Scientific journals : Article
Engineering, computing & technology : Civil engineering
Full-scale fire test on a composite floor slab incorporating long span cellular steel beams
Nadjai, Ali mailto [University of Ulster > > > >]
Bailey, Colin mailto [University of Manchester > > > >]
Vassart, Olivier mailto [ArcelorMittal > > > >]
Han, S [University of Ulster > > > >]
Zhao, Bin mailto [C.T.I.C.M. > > > >]
Hawes, Mike [ASDWestok > > > >]
Franssen, Jean-Marc mailto [Université de Liège - ULg > Département Argenco : Secteur SE > Ingénierie du feu >]
Simms, Ian [Steel Construction Institute > > > >]
Structural Engineer
The Institution of Structural Engineers
United Kingdom
[en] full scale tests ; fire tests ; cellular beams ; steel ; frames ; buildings ; floors ; composite construction ; slab
[en] As part of an international major research initiative, dealing with the behaviour of long span cellular beams in steel framed buildings under fire, a large-scale fire test incorporating 15m long cellular beams was carried out. The test incorporated unprotected secondary cellular steel beams acting compositely with the supporting floor slab. The floorplate in its entirety was designed to carry the load with unprotected beams, when subjected to a severe fire, by utilising membrane action of the floor slab. The overall structure performed very well supporting the full applied static load for the duration of the test. The unprotected cellular steel beams were subjected to distortional buckling, with only the
top tee providing any support through catanary action. The test supported the assumptions adopted in the structural design approach and provided an accurate estimate of the strength of the floorplate. Comparison of the recorded time-temperature relationship of the fire with the design method presented in the Eurocodes shows that the code under-predicts the severity of the fire, although this was compensated to some extent by the conservative assumptions embedded within the structural model.
Researchers ; Professionals

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