The influence of gaps of fire-resisting doors on the smoke spread in a building fire

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)539-546
Journal / PublicationFire Safety Journal
Volume41
Issue number7
Publication statusPublished - Oct 2006

Abstract

Many building codes stipulate the need for fire-rated doors to be closely fitted around their edges to impede the passage of smoke and flame. To ensure the smooth opening of the doors, gaps between the door panels and the walls and floor cannot be totally eliminated. Depending on the country where the building code is enforced, the maximum permissible door gap requirement varies substantially. To better understand the influence of gap sizes on the smoke spread, a numerical study is performed on the different door gap configurations affecting the smoke egress in an enclosure fire. The results show that the height of the door gaps has a significant effect on the pressure and temperature distribution in controlling the smoke spreading. Larger door gaps have shown to allow more hot smoke transgressing through the door gaps as well as cold air re-entraining back into the burn room. Fire-rated door with a 3 mm door gap have demonstrated to be the best measure for impeding smoke spread while maintaining reasonable smoothness for the door movement. © 2006 Elsevier Ltd. All rights reserved.

Research Area(s)

  • CFD modelling, Door gap, Fire-rated door, Smoke spread

Citation Format(s)

The influence of gaps of fire-resisting doors on the smoke spread in a building fire. / Cheung, Sherman C.P.; Lo, S. M.; Yeoh, G. H. et al.
In: Fire Safety Journal, Vol. 41, No. 7, 10.2006, p. 539-546.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review