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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/en/permalink/fpipub49851
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Date
March 2018
Material Type
Research report
Field
Sustainable Construction
Connections under Force and Fire Date: March 2018 By: Zhiyong Chen, Ph.D., P.Eng., Scientist, Advanced
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2018
Material Type
Research report
Physical Description
85 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Cross Laminated Timber
Fire
Performance
Timber
Language
English
Abstract
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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Demonstration: Trident Pump high pressure, high volume, versatile pump

https://library.fpinnovations.ca/en/permalink/fpipub7322
Author
Ault, Ray
Campbell, Roy
Gough, Derek
Date
October 2017
Edition
49486
Material Type
research report
Field
Fibre Supply
Author
Ault, Ray
Campbell, Roy
Gough, Derek
Date
October 2017
Edition
49486
Material Type
research report
Physical Description
3 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
Series Number
InfoNote ; 2017 n.29
Language
English
Abstract
Alberta Agriculture and Forestry asked FPInnovations to evaluate the patented Trident Pump System developed by Younkers Wielding for the system's suitability for wildfire operations. This report summarizes the author's observations and thoughts.
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InfoNote2017N29.PDF

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Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
November 2017
Edition
49641
Material Type
research report
Field
Fibre Supply
Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
November 2017
Edition
49641
Material Type
research report
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
Series Number
InfoNote ; 2017 n. 32
Language
English
Abstract
Alberta helitorch has been in service for over 20 years, and based on helitorch life expectancy and the advancements in technology, Alberta wildfire management staff decided to explore design improvements and construction of a replacement helitorch prototype.
Documents

InfoNote2017N32.PDF

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Helitorch redesign: field test results and modifications

https://library.fpinnovations.ca/en/permalink/fpipub7721
Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
October 2020
Edition
53070
Material Type
research report
Field
Fibre Supply
Project class. Field testing was conducted during AFF wildfire field exercises and actual fire
Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
October 2020
Edition
53070
Material Type
research report
Physical Description
5 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
Series Number
InfoNote ; 2020 n. 12
Language
English
Abstract
The Alberta Agriculture and Forestry (AFF) Wildfire Management Branch Ignition Specialists Working Group has endorsed a collaborative project to develop a redesigned helitorch. The goal of this project is to have an acceptable and proven replacement helitorch based on extensive testing.
Documents

InfoNote2020N12.PDF

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Infrared hotspot prototype construction, testing and evaluation

https://library.fpinnovations.ca/en/permalink/fpipub7509
Author
Campbell, Roy
Ault, Ray
Hsieh, Rex
Badcock, Jamie
Ackerman, Mark
Date
April 2018
Edition
49825
Material Type
research report
Field
Fibre Supply
Author
Campbell, Roy
Ault, Ray
Hsieh, Rex
Badcock, Jamie
Ackerman, Mark
Date
April 2018
Edition
49825
Material Type
research report
Physical Description
2 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Prototypes
Testing
Scanning
Wildfires
Forest fires
Fire
Series Number
InfoNote ; 2018 n. 9
Language
English
Abstract
Innovation in hotspot target equipment used for Infrared (IR) testing reduces risks and logistical challenges. This InfoNote describes the development of a new hotspot prototype for use at the IR grid in Hinton, Alberta.
Documents

InfoNote2018N9.PDF

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Performance-based approach to support tall and large wood buildings: fire and seismic performance

https://library.fpinnovations.ca/en/permalink/fpipub49569
Author
Dagenais, Christian
Chen, Zhiyong
Popovski, Marjan
Date
October 2017
Material Type
Research report
Field
Sustainable Construction
FPInnovations Performance-Based Approach to Support Tall and Large Wood Buildings: Fire
Author
Dagenais, Christian
Chen, Zhiyong
Popovski, Marjan
Contributor
Natural Resources Canada. Canadian Forest Service
Date
October 2017
Material Type
Research report
Physical Description
48 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber
Fire
Performance
Adhesives
Language
English
Abstract
The objective of the current project is to develop a performance-based design process for wood-based design systems that would meet the objectives and functional statements set forth in the National Building Code of Canada. More specifically, this report discusses the fire and seismic performance of buildings, as identified as a priority in a previous FPInnovations report.
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Phos-Chek Solid Foam Stick and Scotty Foam-Fast Applicator evaluation

https://library.fpinnovations.ca/en/permalink/fpipub44261
Author
Campbell, Roy
Date
January 2017
Material Type
Research report
Field
Fibre Supply
Author
Campbell, Roy
Date
January 2017
Material Type
Research report
Physical Description
21 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Wildfires
Forestry
Fuel
Black spruce
Alberta
Density
Physical properties
Mulch
Forest fire
Crown fire
Wind
FOP Technical Report
FPI TR
Series Number
Technical Report ; TR 2017 n.3
Language
English
Abstract
Class A foam “lowers water’s surface tension making it more effective in suppressing fire in Class A combustibles (wood, vegetation, paper and cotton products and rubber)” (ICL Performance Products LP, n.d.). Alberta Agriculture and Forestry has used class A liquid foam and liquid foam inductor kits in wildfire suppression since the 1980s. Although class A liquid foam has proven to be an effective tool, promoting the consistent use of it in Alberta has been a challenge since its introduction. Firefighter reluctance to use class A foam is often linked to reasons such as set-up time, working with the foam solution, system awkwardness, and anecdotal comparisons to straight water. Alberta’s Provincial Warehouse and Service Centre (PWSC) was approached by ICL Performance Products LP (ICL) regarding a new class A foam system, the Phos-Chek SOLID Foam Stick and Scotty Foam-Fast Applicator. The foam stick and applicator were promoted by ICL as a simple and effective way of producing low-expansion class A foam using minimal equipment. Following an ICL presentation to Alberta’s PWSC and Fireline Equipment Working Group (FEWG), a decision was made to pursue field trials before considering a large-scale purchase. To facilitate field trials, the PWSC purchased several applicators and a supply of foam sticks with the intent of having their firefighters assess the system. Further discussion by the group identified a lack of consistent evaluation criteria and a need for documented, fact-based test results. In follow-up, the PWSC requested assistance from Alberta’s Wildfire Management Science and Technology (WMST) program to engage a research provider, and in March of 2015, they asked FPInnovations to conduct an evaluation of the Phos-Chek SOLID Foam Stick (formulation ID #049-019F) and the Scotty Foam-Fast Applicator (model 4010-50). FPInnovations worked with the WMST program working group, PWSC manager, and designated FEWG members to review research questions, project needs and develop the following project objectives.
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WoodST: an advanced modelling tool for fire safety analysis of timber structures

https://library.fpinnovations.ca/en/permalink/fpipub7943
Author
Chen, Zhiyong
Dagenais, Christian
Ni, Chun
Date
January 2021
Material Type
Research report
Field
Sustainable Construction
INFONOTE January 2021 – no. 01 Not-Restricted WOODST: AN ADVANCED MODELLING TOOL FOR FIRE
Author
Chen, Zhiyong
Dagenais, Christian
Ni, Chun
Date
January 2021
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Fire
Models
Performance
Timber
Language
English
Abstract
WoodST is capable of calculating heat transfer, charring rate, load-displacement curve as well as the time and mode of failure of timber structures exposed to fire, thus providing a cost-competitive solution for the fire safety analysis of timber structures. This InfoNote briefly introduces the development and verification of WoodST. Two applications of WoodST are also demonstrated.
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InfoNote2021N1E.pdf

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WoodST: outil de modélisation avancé pour l'analyse de la sécurité incendie des structures en bois

https://library.fpinnovations.ca/en/permalink/fpipub7944
Author
Chen, Zhiyong
Dagenais, Christian
Ni, Chun
Date
Janvier 2021
Material Type
Research report
Field
Sustainable Construction
of Timber Connections under Force and Fire (Project No. 301012203). FPInnovations, Vancouver, Canada
Author
Chen, Zhiyong
Dagenais, Christian
Ni, Chun
Date
Janvier 2021
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Fire
Models
Performance
Timber
Language
French
Abstract
WoodST est capable de calculer le transfert de chaleur, la vitesse de carbonisation, la courbe charge-déplacement ainsi que le moment et le mode de défaillance des structures en bois exposées au feu, offrant ainsi une solution à coût compétitif pour l'analyse de la sécurité incendie des ossatures en bois. La présente note d’information présente brièvement le développement et la vérification de WoodST. Deux applications de WoodST sont également présentées.
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InfoNote2021N1F.pdf

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9 records – page 1 of 1.