- Author
- Benichou, N. | Morgan, D.
- Title
- Structural Response Model for Wood Stud Wall Assemblies: Theory Manual.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
- IRC Research Report No. 128; Research Report No. 128; RR-128, April 2003, 10 p.
- Distribution
- FOR MORE INFORMATION CONTACT: National Research Council of Canada, Institute for Research in Construction, Ottawa, Ontario, K1A 0R6, Telephone (613) 993-2607, Fax: (613) 952-7673, Email: Irc.Client-Services@nrc.ca [FULL DOCUMENT IN PDF]: http://irc.nrc-cnrc.gc.ca/fulltext/rr128/
- Keywords
- wooden structures | fire behavior | walls | fire resistance | time | heat transfer
- Identifiers
- behavior of wood-stud walls under fire exposure; comparison of model predictions with experimental data; thermal response sub-model; structural response sub-model
- Abstract
- To minimize the costly consequences of fire, load-bearing wood-framed assemblies, such as other building fire barriers, are required to exhibit acceptable fire resistance to contain the fire within the compartment of fire origin. This containment will delay fire spread to other compartments, as well as provide for safe evacuation and rescue operations. The fire resistance of wood-frame assemblies can be evaluated by subjecting loaded assemblies to the standard ULC/S101-M891 tests or using calculation methods. The National Research Council of Canada (NRC) and the Canadian wood industry have joined in a collaborative effort to develop an analytical model to predict the fire resistance of lightweight wood-frame wall assemblies exposed to standard and real fires. The model is comprised of two sub-models: a heat transfer sub-model and a structural response sub-model. This report describes the theoretical framework of the structural response sub-model, which predicts the time to failure and deflection of structurally-loaded wood-framed wall assemblies. This report also presents a sample example of a simulation through the comparison between experimental and analytical predictions.