Fire performance of metal-free timber connections

Brandon, Daniel, Maluk, Cristian, Ansell, Martin P., Harris, Richard, Walker, Pete, Bisby, Luke and Bregulla, Julie (2015) Fire performance of metal-free timber connections. Proceedings of Institution of Civil Engineers: Construction Materials, 168 4: 173-186. doi:10.1680/coma.14.00055

Author Brandon, Daniel
Maluk, Cristian
Ansell, Martin P.
Harris, Richard
Walker, Pete
Bisby, Luke
Bregulla, Julie
Title Fire performance of metal-free timber connections
Journal name Proceedings of Institution of Civil Engineers: Construction Materials   Check publisher's open access policy
ISSN 1747-6518
Publication date 2015-05-02
Year available 2015
Sub-type Article (original research)
DOI 10.1680/coma.14.00055
Open Access Status Not yet assessed
Volume 168
Issue 4
Start page 173
End page 186
Total pages 14
Place of publication London, United Kingdom
Publisher ICE Publishing
Language eng
Abstract The fire performance of heavy timber frame structures is often limited by the poor fire performance of its connections. Conventional timber connections, dowelled or toothed plate connections typically use steel as a connector material. In a fire, the steel parts rapidly conduct heat into the timber, leading to reduced fire performance. Replacing metallic connectors with alternative non-metallic, low thermal conductivity connector materials can, therefore, lead to improved connection performance in fire. This paper presents an experimental study into the fire performance of metal-free timber connections comprising a hot-pressed plywood flitch plate and glass-fibre-reinforced polymer dowels. The thermal behaviour of the connections at elevated temperatures is studied using a standard cone calorimeter apparatus and a novel heat transfer rate inducing system. The latter is a fire testing system developed at the University of Edinburgh. The mechanical behaviour of the connection during severe heating was also studied using an environmental chamber at temperatures up to 610°C. The results demonstrate that heat transfer in the non-metallic connections is governed by the thermal properties of the timber, resulting in significant enhancements in connection fire performance.
Keyword Timber structures
Fire engineering
Composite structures
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
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Citation counts: Scopus Citation Count Cited 1 times in Scopus Article | Citations
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Created: Tue, 08 Sep 2015, 07:22:11 EST by Jeannette Watson on behalf of School of Civil Engineering