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Title: The Influence of Travelling Fires on a Concrete Frame
Authors: Law, Angus
Stern-Gottfried, Jamie
Gillie, Martin
Rein, Guillermo
Issue Date: 2011
Citation: A Law, M Gillie, J Stern-Gottfried, G Rein, The Influence of Travelling Fires on a Concrete Frame, Engineering Structures 33, pp. 1635–1642, 2011. http://dx.doi.org/10.1016/j.engstruct.2011.01.034
Publisher: Journal of Engineering Structures - Elsevier
Abstract: When building fires occur in large, open, compartments they rarely burn uniformly across an entire floor plate of a structure. Instead, they tend to travel, igniting fuel in their path and burning it out as they move to the next fuel package. Current structural fire design methods do not account for these types of fires. This paper applies a novel methodology for defining a family of possible heating regimes to a framed concrete structure using the concept of travelling fires. A finite-element model of a generic concrete structure is used to study the impact of the family of fires; both relative to one another and in comparison to the conventional codified temperature-time curves. It is found that travelling fires have a significant impact on the performance of the structure and that the current design approaches cannot be assumed to be conservative. Further, it is found that a travelling fire of approximately 25% of the floor plate in size is the most severe in terms of structural response. It is concluded that the new approach is simple to implement, provides more realistic fire scenarios, and is more conservative than current design methods.
Description: Peer-reviewed paper published in the journal Engineering Structures. Work conducted at the University of Edinburgh in collaboration with Arup and funding from the BRE Trust and Arup.
Sponsor(s): BRE Trust and Arup
Keywords: travelling fires
structure
fire safety
design
URI: http://hdl.handle.net/1842/4907
Appears in Collections:BRE Research Publications

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