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Development of a Canadian fire-resistance design method for massive wood members

https://library.fpinnovations.ca/en/permalink/fpipub39731
Author
Dagenais, Christian
Osborne, Lindsay
Date
January 2013
Material Type
Research report
Field
Sustainable Construction
Development of a Canadian Fire-Resistance Design Method for Massive Wood Members
Author
Dagenais, Christian
Osborne, Lindsay
Contributor
Canadian Forest Service.
Date
January 2013
Material Type
Research report
Physical Description
37 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Fire
Building construction
Design
Series Number
301006148
E-4821
Location
Québec, Québec
Language
English
Abstract
Building regulations require that key building assemblies exhibit sufficient fire-resistance to allow time for occupants to escape and to minimize property losses. The intent is to compartmentalize the structure to prevent the spread of fire and smoke, and to ensure structural adequacy to prevent or delay collapse. The fire-resistance rating of a building assembly has traditionally been assessed by subjecting a replicate of the assembly to the standard fire-resistance test, (ULC S101 in Canada, ASTM E119 in the USA and ISO 834 in most other countries). Massive wood elements such as solid sawn timbers, glued laminated timber (glulam) and structural composite lumber (SCL) can provide excellent fire-resistance. This is due to the inherent nature of thick timber members to char slowly when exposed to fire allowing massive wood systems to maintain significant structural resistance for extended durations when exposed to fire. Calculating the fire-resistance of massive wood elements can be relatively simple because of the essentially constant and predictable rate of charring during the standard fire exposure. Charred wood is assumed to no longer provide any strength and stiffness; therefore the remaining (or reduced) cross-section must be capable of carrying the load. This report presents two (2) mechanics-based design procedures as alternative design methods to conducting fire-resistance tests in compliance with ULC S101 or to using Appendix D-2.11 of the NBCC, which is limited to glulam members stressed in bending or axial compression. The procedures are applicable to solid sawn timber, glulam or SCL structural members and aim at developing a suitable calculation method that would provide accurate fire-resistance predictions when compared to test data. The long-term objective is to provide recommendations for incorporating either method into CSA O86 and/or NBCC. The comparisons between the proposed methodologies and the experimental data for beams, columns and tension members show good agreement. While further refinement of these methods is possible, these comparisons suggest that the use of the CSA O86 equations and a load combination for rare events adequately address fire-resistance design of massive wood members.
Solid Wood Products
Glulam
Structural building components
Cross-laminated timber
Buildings - Design
FIRE RESISTANCE
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Evaluating the effectiveness of FireSmart priority zones for structure protection

https://library.fpinnovations.ca/en/permalink/fpipub39760
Author
Walkinshaw, Stew
Schroeder, Dave
Date
November 2013
Material Type
Research report
Field
Fibre Supply
to the Fort Providence fire crews for their work in preparing the treated plots and their assistance
Author
Walkinshaw, Stew
Schroeder, Dave
Date
November 2013
Material Type
Research report
Physical Description
20 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Fire
Fire Control
Vegetation
Wildfires
Advantage
Series Number
Advantage ; Vol. 14, No. 6
Language
English
ISSN
14933381
Abstract
When wildfire escapes into the wildlands-urban interface, homes, industrial facilities, and other urban values can be threatened or destroyed. As recommended by the FireSmart Canada program, vegetation management is a key principle in mitigating the risk of wildfire affecting urban values. In 2007, at a forested test site in the Northwest Territories, Canada, FPInnovations evaluated the effectiveness of using vegetation management- i.e., removal and reduction of forest fuels from the vicinity of a small building- as a strategy for protecting the building from wildfire.
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Fire-resistance test report of E1 stress grade cross-laminated timber assemblies

https://library.fpinnovations.ca/en/permalink/fpipub42918
Author
Osborne, Lindsay
Dagenais, Christian
Date
August 2013
Material Type
Research report
Field
Sustainable Construction
Department Manager Project No. 301006155 Report 2012/13 Fire
Author
Osborne, Lindsay
Dagenais, Christian
Contributor
Service canadien des forêts.
Date
August 2013
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Fire
Building construction
Composites
Series Number
E-4824
Location
Québec, Québec
Language
English
Abstract
A series of 3 cross-laminated timber (CLT) fire-resistance tests were conducted in accordance with ULC S101 standard as required in the National Building Code of Canada. The first two tests were 3-ply wall assemblies which were 105 mm thick, one unprotected and the other protected with an intumescent coating, FLAMEBLOC® GS 200, on the exposed surface. The walls were loaded to 295 kN/m (20 250 lb./ft.). The unprotected assembly failed structurally after 32 minutes, and the protected assembly failed after 25 minutes. The third test consisted of a 175 mm thick 5-ply CLT floor assembly which used wood I-joists, resilient channels, insulation and 15.9 mm ( in.) Type X gypsum board protection. A uniform load of 5.07 kPa (106 lb./ft²) was applied. The floor assembly failed after 138 min due to integrity.
CROSS LAYING
FIRE RESISTANCE
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Fire resistant coatings for structural assemblies|Future of fire resistive coatings in wood construction : Workshop : Forest Products Laboratory. Madison, WI : 29-April 1988es

https://library.fpinnovations.ca/en/permalink/fpipub52578
Author
Richardson, L.R.
Date
April 1988
Material Type
Research report
Field
Sustainable Construction
Author
Richardson, L.R.
Date
April 1988
Material Type
Research report
Physical Description
9 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Research
Prevention
Fire
Building materials
Coating
Location
Ottawa, Ontario
Language
English
Documents
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Surface burning characteristics of V2 stress grade cross-laminated timber

https://library.fpinnovations.ca/en/permalink/fpipub39753
Author
Dagenais, Christian
Date
October 2013
Material Type
Research report
Field
Sustainable Construction
Dagenais, Eng., M.Sc. Scientist, Serviceability and Fire Group Advanced Building Systems
Author
Dagenais, Christian
Contributor
Canadian Forest Service
Date
October 2013
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Timber
Surface properties
Resistance
Fire
Laminate product
Series Number
E4827
Location
Québec, Québec
Language
English
Abstract
Advanced wood building systems form a significant market opportunity for use of wood in taller and larger buildings, which are currently required to be of non-combustible construction in accordance with provisions set forth in Part 3 of Division B of the National Building Code of Canada (NBCC).
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Système électrique et système d'extinstion des incendies sur les abatteuses-groupeuses

https://library.fpinnovations.ca/en/permalink/fpipub43587
Author
Williams, W.A.
Date
1988
Material Type
Research report
Field
Fibre Supply
Author
Williams, W.A.
Date
1988
Material Type
Research report
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Fire
Equipment
Language
French
Documents
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6 records – page 1 of 1.