Role of Insulation Effectiveness on Fire Resistance of Steel Structures under Extreme Loading Events
Publication: Journal of Performance of Constructed Facilities
Volume 25, Issue 4
Abstract
Fire performance of steel structures is highly dependent on the effectiveness of applied fire insulation. However, insulation materials are susceptible to damage under extreme loading events. A state-of-the-art review on the role of insulation damage on fire resistance of steel structures is presented. Parametric studies on a six-story steel-framed building were carried out to illustrate the effect of insulation damage on fire response of a steel structure. In the analysis, realistic fire scenarios, loading, and failure criteria were taken into consideration. Analysis results indicate that the fire resistance of a steel-framed structure is significantly influenced by the extent of insulation loss, type of fire scenario, and level of lateral load. Insulation damage causes faster deterioration in the structural response of framed buildings under the combined effect of fire and lateral loading. The need for accounting for any insulation damage, arising under extreme loading events, in fire design of steel-framed structures is highlighted, and a performance-based design strategy incorporating fire resistance analysis is discussed.
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Acknowledgments
The writers wish to acknowledge the support of Michigan State University through a Strategic Partnership Grant (Award #71-4434). Any opinions, findings, conclusions, or recommendations expressed in this paper are those of the writers and do not necessarily reflect the views of the sponsors.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 25 • Issue 4 • August 2011
Pages: 277 - 286
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Dec 9, 2009
Accepted: Sep 9, 2010
Published online: Sep 23, 2010
Published in print: Aug 1, 2011
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