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CLT fire resistance tests in support of tall wood building demonstration projects

https://library.fpinnovations.ca/en/permalink/fpipub3425
Author
Osborne, Lindsay
Date
November 2014
Edition
40099
Material Type
Research report
Field
Sustainable Construction
FPInnovations ─ Report Title 1 CLT Fire Resistance Tests in Support of Tall Wood Building
Author
Osborne, Lindsay
Contributor
Natural Resources Canada. Canadian Forest Service
Date
November 2014
Edition
40099
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Fire
Resistance
Laminate product
Structural composites
Series Number
Transformative Technologies - Fire Performance
E-4949
Location
Québec, Québec
Language
English
Abstract
These tests were performed to support the approval and construction of a tall wood building in Quebec City (13-storey). While a calculation methodology is provided in Chapter 8 (Fire) of the CLT Handbook [3], the Association des Chefs en Sécurité Incendie du Québec (ACSIQ), the Régie du bâtiment du Québec (RBQ) and other stakeholders requested these tests be performed so that they could witness the actual fire performance of the specified assemblies. As such, the main objective was to demonstrate at least a 2 h FRR of the CLT assemblies, which is the minimum required rating as prescribed by the National Building Code of Canada [4] for structural elements and fire separation walls of exit stair ways and elevators shafts in tall buildings (greater than 6 storeys). Numerous representatives from Quebec and Ontario were present for either one or both days of testing, including RBQ, the Cities of Montreal, Ottawa, and Quebec City as well as fire services personnel from Montreal, Ottawa and Gatineau. FPInnovations, Nordic, the Canadian Wood Council (CWC), and CHM fire consultants were also in attendance.
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Modelling of dimension lumber in axial compression at elevated temperatures

https://library.fpinnovations.ca/en/permalink/fpipub42020
Author
Van Zeeland, I.
Date
February 2001
Material Type
Research report
Field
Sustainable Construction
Author
Van Zeeland, I.
Contributor
Canada. Canadian Forest Service
Date
February 2001
Material Type
Research report
Physical Description
68 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Mechanical properties
Fire
Series Number
Canadian Forest Service No. 9
E-3524
Location
Sainte-Foy, Québec
Language
English
Abstract
The design of wood-frame structural systems to withstand exposure to fire depends on knowledge of the fire endurance (time-to-failure) of the wood members used in the system. In fires, wood looses part of its load-carrying capacity due to charring and part due to strength degradation. This thesis examines the reduction in compression strength experienced by dimension lumber when exposed to elevated temperatures. A program of experimental testing of nominal 2×4 Machine Stress Rated (MSR) lodgepole pine lumber concentrically loaded in compression and exposed to elevated temperature was undertaken by Forintek Canada Corp., Canada's wood products research institute. A computer program entitled HTExposure was written to simulate the experimental time-to-failure data gathered in Forintek's testing program. This computer program combines a modification of an existing heat-transfer model with various published compression-strength reduction models. This was done in order to determine which of those strength-reduction models could predict times-to-failure comparable to the observed values. As well, a new compression-strength reduction model was proposed. When predicted results were compared to the observed data, it was determined that the computer program predicted results closest to those observed when using the new compression-strength reduction model proposed in this study.
Lumber modelling
Axial compression
Elevated temperatures
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Review of low char fire retardant treatment options for wood

https://library.fpinnovations.ca/en/permalink/fpipub42986
Author
Stirling, Rod
Dagenais, Christian
Date
February 2014
Material Type
Research report
Field
Sustainable Construction
Review of Low Char Fire Retardant Treatment Options for Wood Project No. 301007972 ii
Author
Stirling, Rod
Dagenais, Christian
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
February 2014
Material Type
Research report
Physical Description
9 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Coating
Fire
Prevention
Series Number
Transformative Technologies No. 1.1.07
W-3069
Language
English
Abstract
Treatment options are needed to enhance the fire performance of thin structural members without generating additional char. This review explores potential opportunities for low-char fire retardant treatments and fire protective coatings for wood products, and briefly discusses the technical and code-based barriers to their adoption.
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Surface burning characteristics of glulam decking

https://library.fpinnovations.ca/en/permalink/fpipub39806
Author
Dagenais, Christian
Date
March 2014
Material Type
Research report
Field
Sustainable Construction
Author
Dagenais, Christian
Contributor
Canadian Forest Service.
Date
March 2014
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Fire
Testing
Decking
Building materials
Series Number
301007969
E-4860
Location
Québec, Québec
Language
English
Abstract
The key objective of this study was to evaluate the surface burning characteristics (flame spread rating) of glued-laminated timber (glulam) decking in accordance with CAN/ULC S102 test method [1]. This is part of a test series aimed at evaluating the flame spread rating of mass timber components, such as cross-laminated timber (CLT) and structural composite lumber (SCL). More specifically, this study is solely focused on mass timber assemblies that are thick enough to be treated theoretically as semi-infinite solids (thermally thick solids) as opposed to thermally-thin, which is typical of traditional combustible finish products. The tested specimen in this series meets the provisions related to “heavy timber construction”, per paragraph 3.1.4.7 of Division B of the National Building Code of Canada.
FLAMMABILITY
Glulam
Decking
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