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Advanced methods of encapsulation

https://library.fpinnovations.ca/fr/permalink/fpipub6091
Auteur
Osborne, Lindsay
Roy-Poirier, A.
Date
November 2016
Édition
44220
Genre du document
Research report
Domaine
Sustainable Construction
Officer, Fire Safety Group, National Research Council Canada Forestry Innovation Investment 1200
Auteur
Osborne, Lindsay
Roy-Poirier, A.
Collaborateur
Forestry Innovation Investment
Date
November 2016
Édition
44220
Genre du document
Research report
Description physique
66 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Building Systems
Sujet
Building construction
Wood frame
Design
Fire
Série
W-3261
Langue
English
Résumé
Neither the National Building Code of Canada (NBCC) [1], nor any provincial code, such as the British Columbia Building Code (BCBC) [2], currently provide “acceptable solutions” to permit the construction of tall wood buildings, that is buildings of 7 stories and above. British Columbia, however, was the first province in Canada to allow mid-rise (5/6 storey) wood construction and other provinces have since followed. As more mid-rise wood buildings are erected, their benefits are becoming apparent to the industry, and therefore they are gaining popularity and becoming more desirable. Forest product research has now begun to shift towards more substantial buildings, particularly in terms of height. High-rise buildings, typically taller than 6 storeys, are currently required to achieve 2 h fire resistance ratings (FRR) for floors and other structural elements, and need to be of non-combustible construction, as per the “acceptable solutions” of Division B of the NBCC [1]. In order for a tall wood building to be approved, it must follow an “alternative solution” approach, which requires demonstrating that the design provides an equivalent or greater level of safety as compared to an accepted solution using non-combustible construction. One method to achieve this level of safety is by ‘encapsulating’ the assembly to provide additional protection before wood elements become involved in the fire, as intended by the Code objectives and functional statements (i.e., prolong the time before the wood elements potentially start to char and their structural capacity is affected). It is also necessary to demonstrate that the assembly, in particular the interior finishes, conform to any necessary flame spread requirements. The Technical Guide for the Design and Construction of Tall Wood Buildings in Canada [3] recommends designing a tall wood building so that it is code-conforming in all respects, except that it employs mass timber construction. The guide presents various encapsulation methods, from full encapsulation of all wood elements to partial protection of select elements. National Research Council Canada (NRC), FPInnovations, and the Canadian Wood Council (CWC) began specifically investigating encapsulation techniques during their Mid-Rise Wood Buildings Consortium research project, and demonstrated that direct applied gypsum board, cement board and gypsum-concrete can delay the effects of fire on a wood substrate [4]. There is extensive data on the use of gypsum board as a means of encapsulation for wood-frame assemblies and cold-formed steel assemblies. However, tall wood buildings are more likely to employ mass timber elements due to higher load conditions, requirements for longer fire resistance ratings, as well as other factors. There is little knowledge currently available related to using gypsum board directly applied to mass timber, or in other configurations, for fire protection. Testing performed to date has been limited to direct applied Type X gypsum board using standard screw spacing, and showed promising results [5, 6, 7]. This represents an opportunity for other configurations that might provide enhanced protection of wood elements to be investigated. Being able to provide equivalent fire performance of assemblies between non-combustible and combustible construction will thus improve the competiveness of tall timber buildings by providing additional options for designers.
Revision of March 2015 edition
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Advanced wood-based solutions for mid-rise and high-rise construction: exit fire separations in mid-rise Wood buildings

https://library.fpinnovations.ca/fr/permalink/fpipub49853
Auteur
Ranger, Lindsay
Dagenais, Christian
Date
March 2018
Genre du document
Research report
Domaine
Sustainable Construction
: Exit Fire Separations in Mid-Rise Wood Buildings March 31, 2018 Lindsay Ranger, P.Eng, M.A.Sc
Auteur
Ranger, Lindsay
Dagenais, Christian
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
March 2018
Genre du document
Research report
Description physique
91 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Wood
Fire
Building code
Residential construction
Langue
English
Résumé
In 2015, the National Building Code of Canada (NBCC) [1] adopted prescriptive provisions to allow the construction of mid-rise (5- and 6-storey) buildings using combustible construction. These types of buildings were already permitted under the British Columbia Building Code, as of 2009 [2]. In2014 the Province of Ontario filed an amendment to also allow mid-rise wood buildings, however, it required that the exit fire separations be built using noncombustible construction having a fire resistance rating (FRR) of not less than 1.5-hr, which was an increase from the 1-hr requirement in the NBCC. The Québec Construction Code has also filed amendments to allow mid-rise wood construction and also limits exit stairwells to use noncombustible construction.
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Advanced wood-based solutions for mid-rise and high-rise construction: Mid-rise wood exit shaft demonstration fire test report

https://library.fpinnovations.ca/fr/permalink/fpipub49832
Auteur
Ranger, Lindsay
Dagenais, Christian
Bénichou, Noureddine
Date
April 2018
Genre du document
Research report
Domaine
Sustainable Construction
: Mid-Rise Wood Exit Shaft Demonstration Fire Test Report April 2018 By: Lindsay Ranger, P.Eng
Auteur
Ranger, Lindsay
Dagenais, Christian
Bénichou, Noureddine
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
April 2018
Genre du document
Research report
Description physique
48 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Wood
Fire
Building code
Residential construction
Langue
English
Résumé
FPInnovations conducted a research project to study the construction of mid-rise wood exit shafts in Ontario and Québec. The scope of the project included an investigation into the concerns that have been raised in regards to the use of wood exits in mid-rise buildings, an analysis of recent Canadian fire statistics in residential multi-family structures, and a fire demonstration of a mass timber wall and supported light-frame floor. This report describes the fire demonstration completed as part of this project; this report acts as a supplement to the full project report.
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Advanced wood-based solutions for mid-rise and high-rise construction: modelling of timber connections under force and fire

https://library.fpinnovations.ca/fr/permalink/fpipub49851
Auteur
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Date
March 2018
Genre du document
Research report
Domaine
Sustainable Construction
Connections under Force and Fire Date: March 2018 By: Zhiyong Chen, Ph.D., P.Eng., Scientist, Advanced
Auteur
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
March 2018
Genre du document
Research report
Description physique
85 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Cross Laminated Timber
Fire
Performance
Timber
Langue
English
Résumé
FPInnovations carried out a survey with consultants and researchers on the use of analytical models and software packages related to the analysis and design of mass timber buildings. The responses confirmed that a lack of suitable models and related information for material properties of timber connections, in particular under combination of various types of loads and fire, was creating an impediment to the design and construction of this type of buildings. Furthermore, there is currently a lack of computer models for use in performance-based design for wood buildings, in particular, seismic and fire performance-based design. In this study, a sophisticated constitutive model for wood-based composite material under stress and temperature was developed. This constitutive model was programmed into a user-subroutine and can be added to most general-purpose finite element software. The developed model was used to model the structural performance of a laminated veneer lumber (LVL) beam and a glulam bolted connection under force and/or fire. Compared with the test results, it shows that the developed model was capable of simulating the mechanical behaviour of LVL beam and glulam connection under load and/or fire with fairly good correlation. With this model, it will allow structural designers to obtain the load-displacement curve of timber connections under force, fire or combination of the two. With this, key design parameters such as capacity, stiffness, displacement and ductility, which are required for seismic or fire design, can be obtained. It is recommended that further verification and calibration of the model be conducted on various types of wood products, such as CLT, glulam, SCL and NLT, and fasteners, e.g. screw and rivet. Moreover, a database of the thermal and structural properties of the wood members and fasteners that are commonly used in timber constructions need to be developed to support and facilitate the application of the model.
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Advancing knowledge of mid-ply shear walls. Mid-ply shear wall fire resistance testing

https://library.fpinnovations.ca/fr/permalink/fpipub8306
Auteur
Ranger, Lindsay
Dagenais, Christian
Date
March 2021
Genre du document
Research report
Domaine
Sustainable Construction
WALL FIRE RESISTANCE TESTING info@fpinnovations.ca www.fpinnovations.ca Lindsay Ranger, P.Eng
Auteur
Ranger, Lindsay
Dagenais, Christian
Date
March 2021
Genre du document
Research report
Description physique
41 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Building Systems
Sujet
Building construction
Design
Fire
Fire protection
Midply
Midply walls
Shear walls
Walls
Série
Technical Report TR 2021 No.78
Langue
English
Résumé
The objective of this research is to address a knowledge gap related to fire performance of midply shear walls. Testing has already been done to establish the structural performance of these assemblies. To ensure their safe implementation and their broad acceptance, this project will establish fire resistance ratings for midply shear walls. Fire tests will provide information for the development of design considerations for midply shear walls and confirm that they can achieve at least 1-hour fire-resistance ratings that are required for use in mid-rise buildings.
This research will support greater adoption of mid-rise residential and non-residential wood-frame construction and improve competition with similar buildings of noncombustible construction. This work will also support the development of the APA system report for midply walls, which will be a design guideline for using midply walls in North America.
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Alternative uses of post-harvest woody debris biomass

https://library.fpinnovations.ca/fr/permalink/fpipub49507
Auteur
Ristea, Catalin
Date
March 2017
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Ristea, Catalin
Date
March 2017
Genre du document
Research report
Description physique
13 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Harvesting
Logging
Fire
Biomass
Wildlife
Energy
FPI TR
Série
Technical Report ; TR 2017 n.56
Langue
English
Résumé
Current forest management policy in many jurisdictions in North America manages excess woody debris by piling and burning it, mainly as a post-harvest fire hazard abatement obligation. This study highlights three key points to consider regarding utilization and disposal of waste wood piles: 1) Allocate most woody debris waste to the biofuels sector in a cost-effective manner; 2) Allocate a small portion of woody debris (e.g. 10-15%) to implement windrow habitats where necessary to maintain mammalian biodiversity on clearcuts; 3) Limit burning of waste wood to those sites near human activity (potential fire hazard) that do not have an opportunity for biofuels or windrow purposes.
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Analysis of full-scale fire-resistance tests of structural composite lumber beams

https://library.fpinnovations.ca/fr/permalink/fpipub3316
Auteur
Dagenais, Christian
Date
October 2014
Édition
39980
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
FPInnovations Analysis of Full-Scale Fire-resistance Tests of Structural Composite Lumber Beams
Auteur
Dagenais, Christian
Collaborateur
Canadian Forest Service
Date
October 2014
Édition
39980
Genre du document
Research report
Description physique
14 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Fire
Resistance
Testing
Structural composites
Beams
Série
E 4914
Localisation
Québec, Québec
Langue
English
Résumé
The key objective of this study is to analyze full-scale fire-resistance tests conducted on structural composite lumber (SCL), namely laminated veneer lumber (LVL), parallel strand lumber (PSL) and laminated strand lumber (LSL). A sub-objective is to evaluate the encapsulation performance of Type X gypsum board directly applied to SCL beams and its contribution to fire-resistance of wood elements. The test data is being used to further support the applicability of the newly developed Canadian calculation method for mass timber elements, recently implemented as Annex B of CSA O86-14.
Structural Composites - Properties
Beams - Fire resistance
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Area-based water delivery systems. Exploratory research on logistics, water delivery, and its localized impacts

https://library.fpinnovations.ca/fr/permalink/fpipub7859
Auteur
Refai, Razim
Hsieh, Rex
Date
January 2021
Genre du document
Research report
Domaine
Fibre Supply
successfully collaborated with Fire & Flood to obtain this data. A two-day test was executed during which
Auteur
Refai, Razim
Hsieh, Rex
Date
January 2021
Genre du document
Research report
Description physique
20 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Wildfire Operations
Sujet
Fire retardant
Retardant
Spruce
Water
FPI TR
Série
Technical Report ; TR 2021 n.1
Localisation
Alberta
Langue
English
Résumé
The aim of this study was to capture data on area-based water delivery systems, specifically in the context of logistics, systems differentiation, water delivery, and its localized effects. FPInnovations successfully collaborated with Fire & Flood to obtain this data. A two-day test was executed during which Fire & Flood set up their 4- and 12-inch systems and carried out sprinkler operations.
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Assessing the flammability of mass timber components, a review

https://library.fpinnovations.ca/fr/permalink/fpipub53026
Auteur
Mehaffey, J.R. (Jim)
Dagenais, Christian
Date
February 2014
Genre du document
Research report
Domaine
Sustainable Construction
Fire Consultants Ltd. and Christian Dagenais, Eng., M.Sc. Scientist – Serviceability
Auteur
Mehaffey, J.R. (Jim)
Dagenais, Christian
Date
February 2014
Genre du document
Research report
Description physique
27 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Building Systems
Sujet
Building code
Fire
Performance
Design
Timber
Langue
English
Résumé
The report concludes with the recommendation that it would be useful to run an extensive set of cone calorimeter tests on SCL, glue-laminated timber and CLT products. The fundamental data could be most useful for validating models for predicting flame spread ratings of massive timber products and useful as input to comprehensive computer fire models that predict the course of fire in buildings. It is also argued that the cone calorimeter would be a useful tool in assessing fire performance during product development and for quality control purposes.
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Assessment of combustibility parameters of structural composite lumber

https://library.fpinnovations.ca/fr/permalink/fpipub3149
Auteur
Dagenais, Christian
Date
March 2014
Édition
39807
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
PDF
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. REVIEWERS Jim Mehaffey, Ph.D. CHM Fire Consultants Ltd. Mohammad Mohammad, Ph.D., Research Leader
Auteur
Dagenais, Christian
Collaborateur
Forestry Innovation Investment
Date
March 2014
Édition
39807
Genre du document
Research report
Description physique
16 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Structural composites
Lumber
Fire
Localisation
Québec, Québec
Langue
English
Résumé
The present work aims at evaluating the combustibility characteristics (i.e. reaction to fire) of structural composite lumber (SCL) when tested in compliance with the cone calorimeter standard ISO 5660 [7, 8, 9]. More precisely, this study evaluates the heat release rate, total heat release, mass loss, effective heat of combustion, smoke obscuration as well as the presence of toxic gases when SCL products are tested in conformance with ISO 5660. Moreover, this study is solely focused on SCL elements that are thick enough to act as semi-infinite solids (thermally thick solids), as opposed to typical thin combustible finish products. Tests data are also compared to those obtained for visually-graded solid wood specimens of the SPF species group.
Combustibility
Composite Lumber
Laminated products - Fire resistance
Structural Composites - Properties
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95 notices – page 1 of 10.