Harvest operations on soft soils can be particularly challenging in order to respect site and soil disturbance guidelines as well as operational requirements. To address the challenges of operating on soft soils, FPInnovations has worked on solutions designed to reduce disturbance on weak soils while minimizing implementation and investment costs by using machines already being used in the operation.
Hummingbird Network, a British Columbia company, presented its crowdsourcing wildfire detection concept (the Hummingbird Network Smoke Detection Service) during the 2016 Wildland Fire Canada conference. In January 2017, as a follow-up to the conference, Hummingbird Network provided a live demonstration to AAF, BC Wildfire Service, and FPInnovations in Edmonton, Alberta. After a successful demonstration, and at the request of the wildfire agencies, FPInnovations committed to working with Hummingbird Network to provide an evaluation of its wildfire detection system.
This report reviews life cycle assessment (LCA) based regulatory approaches that have been adopted in several countries to evaluate and improve environmental impacts of cosntruction products and buildings. Recommendations are provided for incorporating LCA into Canadian regulations (including the National Building Code of Canada), and for enhancing building LCA guidelines to address principles of consistency, simplicity, and representative data which can improve the effectiveness of LCA to achieve regulatory objectives. This work supports the project need of guidance for performance-based design to accelerate the introduction of wood-based systems. The findings of this review can be used to help accelerate the adoption of life cycle-based regulations for buildings and infrastructure in Canada.
In the construction of buildings, the timber-concrete (TCC) system can be a cost-competitive solution for floors with longer spans, since the mechanical properties of the two materials are used efficiently. Furthermore, the additional mass from the concrete improves the acoustic performance compared to a timber floor system alone. Nevertheless, TCC floors are not commonly used in buildings in Canada, due to the absence of technical guidelines for such types of structural systems in this country.
This guide provides detailed information on solid woody biofuels that are available in Ontario and the combustion systems that can burn these biofuels. The four types of solid woody biofuels considered in this guide are cordwood (firewood), wood chips, wood briquettes, and wood pellets. The three types of combustion
systems are stoves, furnaces, and boilers. The major considerations for sourcing and using each type of biofuel and
combustion system for institutional / commercial and residential applications are outlined in this guide.
Ce guide donne de l'information détaillée sur les biocombustibles solides qui sont disponibles en Ontario et sur les systèmes de combustion qui peuvent brûler ces biocombustibles. Les quatre types de biocombustibles solides dont il est question dans ce guide sont le bois de chauffage, les copeaux de bois, les briquettes de bois et les granules de bois. Les trois types de systèmes de combustion sont les poêles, les générateurs d'air chaud et les chadières. Ce guide présente les principales considérations en ce qui concerne l'approvisionnement et l'utilisation de chaque type de biocombustible et système de combustion pour les applications instituttionnelles/commerciales et résidentielles.
The Labrador Forest Management District (FMD) 19A with an annual allowable cut (AAC) of spruce from commercial harvest blocks of 165 000 m3/year is enough to meet the demand of a 40 M fbm/year sawmill (assuming sawmill efficiency factor of 4 m3/MFBM). The estimated average wood supply costs to access all the AAC wood from district 19A for Goose Bay is $58/m3 and Sheshatshiu at $63/m3 (9% price premium paid for wood deliveries to Sheshatshiu caused by the added transport distance of about 40 km per trip to complete the cycle time on average for truck loads). The scenario of a 40 M fmb/year sawmill would require at least 20 full time employees to run the wood supply chain and another 14 part time employees to build and maintain the road network.
Braced timber frames (BTFs) are one of the most efficient structural systems to resist lateral loads induced by earthquakes or high winds. Although BTFs are implemented as a system in the National Building Code of Canada (NBCC), no design guidelines currently exist in CSA O86. That not only leaves these efficient systems out of reach of designers, but also puts them in danger of being eliminated from NBCC. The main objective of this project is to generate the technical information needed for development of design guidelines for BTFs as a lateral load resisting system in CSA O86. The seismic performance of 30 BTFs with riveted connections was studied last year by conducting nonlinear dynamic analysis; and also 15 glulam brace specimens using bolted connections were tested under cyclic loading.
In the second year of the project, a relationship between the connection and system ductility of BTFs was derived based on engineering principles. The proposed relationship was verified against the nonlinear pushover analysis results of single- and multi-storey BTFs with various building heights. The influence of the connection ductility, the stiffness ratio, and the number of tiers and storeys on the system ductility of BTFs was investigated using the verified relationship. The minimum connection ductility for different categories (moderately ductile and limited ductility) of BTFs was estimated.
The biggest challenges facing the forest sector currently are dealing with labour availability, maintaining a competitive fibre supply, and having flexibility in the supply chain to react quickly to market demands. Driven by the need to respond to these challenges, FPInnovations launched the Forestry 4.0 program.
Les plus grands défis actuels du secteur forestier concernent la disponibilité de la main-d’oeuvre, le maintien d’un approvisionnement en fibre concurrentiel et une flexibilité de la chaîne d’approvisionnement lui permettant de répondre rapidement aux demandes du marché. Pour relever ces défis, FPInnovations a lancé le programme Foresterie 4.0.
Decking markets in Canada lack options of hybrid designs and are generally limited to smooth 5/4” or 2x6” of either pressure treated wood, cedar, tropical hardwoods or wood plastic composites. Profiled decking has been unsuccessful in entering the Canadian market on a large scale even though globally it is more prevalent. This report looks to leverage FPInnovations’ expertise to identify opportunities to improve the stability, durability, performance and competitiveness of wood decking by combining profiling and treatment with additional non-wood materials. This information will be used to develop prototypes of novel wood-based decking products that would suit the needs of Canadian consumers as well as maintaining or expanding the solid wood decking market for Canadian producers. Six hybrid decking models were conceptualized to address market concerns about wood decking.
In fiscal year 2019-2020, FPInnovations developed a research roadmap in order to explore, test, and deploy innovative products, technologies, tools, processes, and practices that have the potential to enable the transformation of the Canadian building industry towards higher levels of industrialized construction (prefabricated off-site construction), in close collaboration with its partners.
Au cours de l’année financière 2019-2020, FPInnovations a élaboré une carte routière techno-logique et de recherche afin d’explorer, mettre à l’essai et assurer le déploiement de produits innovants, de technologies, d’outils, de procédés et de pratiques ayant le potentiel d’appuyer la transformation de l’industrie canadienne de la construction vers un augmentation de son niveau d’industrialisation (préfabrication), en collaboration étroite avec ses partenaires.
FPInnovations a lancé un projet de
recherche pluriannuel pour mesurer les fréquences
naturelles et les taux d’amortissement des
bâtiments en bois de moyenne et grande hauteur
afin d’élargir la base de données et de valider ou
d’adapter les équations existantes pour estimer les
fréquences naturelles. Deux immeubles de grande
hauteur en bois équipés d'un anémomètre et
d'accéléromètres sont également surveillés en
permanence pour étudier comment le vent excite le
Hemlock can have higher moisture content than most other native trees, causing them to sink. Hemlock lumens have large pits (valves) that allow easy transport of water into the wood.
Bigger rings = bigger lumens. Younger hemlock or hemlock tops are more susceptible to sinking. The bigger the rings the more likely to take on water.
This guide provides users with easy to use charts to assist with the design of geosynthetic-reinforced unpaved roads over weak soils. It permits the estimation of key input parameters through simple procedures and judgment based on experience. Further optimization of designs may however be possible through detailed calculations and lab testing which are encouraged
Ce guide propose des graphiques simples d’utilisation afin d’aider les utilisateurs dans la conception de routes non revêtues renforcées avec des géosynthétiques. Il permet d’estimer les principaux paramètres d’entrée à travers des procédures
simples et le recours au jugement découlant de l’expérience. Lorsque possible, le recours à des essais en laboratoire est préconisé pour l’obtention de certaines données d’entrée.
La construction massive en bois est un terme générique qui englobe une grande variété de produits du bois épais et lourds, notamment le bois lamellé-croisé (CLT), le bois lamellé-goujonné (DLT), le bois lamellé-cloué et le bois lamellé-collé (GLT). À ce jour, les méthodes de conception à vibrations contrôlées ont surtout été élaborées pour les planchers en CLT.
Mass timber is a generic name for a broad range of thick and heavy wood products such as cross-laminated timber (CLT), dowel-laminated timber (DLT), nail-laminated timber (NLT), and gluelaminated timber (GLT), among others. So far, vibration-controlled design methods have been developed mostly for CLT floors.