Manufacturing equipment ranges from manual, semi-automated to fully automated. Software developers have developed suites of applications for structural design, computer aided
design/drafting (CAD), computer aided manufacturing (CAM), building information modeling (BIM), and communication protocols to link production machineries. To further improve production process and material handling, it is essential to rationalize the sectors, review the current status, and identify technology gaps.
The research and technology transfer has national implications that will support bioenergy facilities and rural and Indigenous communities across the country. The CWFC is continuing this work to increase our understanding and expand the safe and sustainable use of biomass for bioenergy.
The researchers suggest partial harvesting - in this case, thinning forests in 20-year increments during the natural pest disturbance periods. The result is a cost-effective and sustainable way to harvest trees and maintain resilient forests.
Forests make up nearly 35 per cent – 347 million hectares – of Canadian land. For the forest sector, that’s a lot of inventory to manage and monitor. To run any successful business, inventory needs to be monitored. That’s why researchers at the Canadian Wood Fibre Centre (CWFC) are enhancing current inventory systems to improve how forest managers, provincial governments, and other communities across Canada manage forests.
Le Canada compte 347 millions d’hectares de forêt, ce qui correspond à près de 35 % de sa super cie. C’est beaucoup de stocks à gérer et surveiller pour le secteur forestier. Pour gérer avec succès une exploitation, une surveillance des stocks s’impose. C’est la raison pour laquelle les chercheurs du Centre canadien sur la bre de bois (CCFB) s’emploient à améliorer les systèmes d’inventaire actuels de manière à améliorer la façon dont les aménagistes forestiers, les gouvernements provinciaux et d’autres collectivités du Canada gèrent les forêts.
The FastTRAC project brought together scientists, foresters and economists from the Canadian Wood Fibre Centre, Laval University, FPInnovations, the Government of Québec, J.D. Irving, and the New Brunswick Tree Improvement Council. They demonstrated tree genomic-assisted selection at the operational scale and highlighted the economic benefits of FastTRAC technology.
Des chercheurs primés du Centre canadien sur la bre de bois du Service canadien des forêts (CCFB/SCF) mènent cette recherche génomique dans le cadre d’un projet appelé FastTRAC (Fast Tests for Rating and Amelioration of Conifers / Tests rapides pour l’amélioration des conifères). Ces travaux transforment les programmes traditionnels d’amélioration génétique des arbres, ils améliorent la sélection des arbres et ils dotent les producteurs de semences de recherches et d’outils essentiels.
La recherche sur les cultures intensives en courte rotation du CCFB fournit les connaissances et la technologie dont nous avons besoin pour atténuer les effets du changement climatique en améliorant la façon dont nous gérons les forêts et utilisons les produits ligneux récoltés.
Compared to slower growing trees like spruces, hybrid poplars and selected aspens grown in these plantations are ready for harvest in less than 20 years. The technology development specialists established this a mixed wood crop to evaluate how short-rotation or fast-growing tree crops (123 to 17 years to maturity) could sustain and expand the bioenergy sector. High-yield crops like these are crucial for the sector, which relies on woody biomass to produce clean energy.
Bioenergie La Tuque (BELT) has targeted the production of renewable liquid hydrocarbon fuels (mostly diesel and aviation fuel) from forestry residues. The production of this type of biofuel is an important and necessary factor enabling Canada to meet its greenhouse gas emission reduction targets. Its importance rests on the potential inherent in the utilization of abundant and sustainable lignocellulosic feedstock, which does not compete with food as well as its complete compatibility with existing transportation fuel markets. BELT’s technology assessment team employed a systematic approach to identify mature technologies with the potential to meet the needs of BELT’s proposed biorefinery. A stepwise approach was used to sift through a wide range of biomass conversion technologies. The first fourteen (14) technologies were selected from a list of over 600 technologies by eliminating those that were not appropriate for the required conversion, lacked the necessary technological maturity, or were defunct.
National Building Code of Canada (NBC) 2020 is the latest edition of the national model code that will be published towards the end of 2021. Based on the best available information from the Standing Committee on Earthquake Design (SCED) at the time of writing this report, the seismic design demand in the NBC 2020 has increased for all site classes for many locations across the country. Also, there are other changes in NBC 2020 that might impact the seismic analysis and design of timber buildings. The main objective of this report is to compare the NBC 2020 to the 2015 edition, with emphasis on the level of the seismic design loads (demands), and potential impacts on the analysis and design of timber buildings.
Large volumes of forest products are traded internationally. With this comes an increased risk of moving forest pathogens associated with these products. To protect both forest health and international trade, prevention or control of pest movement and establishment needs to be done using approaches which result in minimal trade interruption. Rapid, economical, and accurate detection, identification and risk assessment of pathogens is one of the key aspects of successful management. Significant developments in the last two decades in genomics has enabled more accurate and rapid detection of pathogens. However, many of these techniques have not been thoroughly tested in wood and lack associated standards governing their use in a regulatory setting. There are ongoing concerns that these new methods will add regulatory compliance costs to industry and other stakeholders, or that they will be used improperly and unduly limit market access. To address these concerns, it is critical that the capabilities and limits of these tools are well understood by both industry and international regulators, and that standards are developed to govern their use to help reduce the threat of pests while minimizing the impact to trade. This report summarizes current technologies and suggests ways forward.
This report presents the importance of best management practices for mitigating erosion from resource roads and preventing sediment from entering a watercourse. Key to achieving these goals is the understanding of erosion from the road surface and the level of connectivity from the delivery point of the sediment-laden water onto the forest floor and the watercourse. This report provides a list of best management practices that is specific to resource roads.
Midply shear wall, which was originally developed by researchers at Forintek Canada Corp. (predecessor of FPInnovations) and the University of British Columbia, is a high-capacity shear wall system that is suitable for high wind and seismic loadings. Its superior seismic performance was demonstrated in a full-scale earthquake simulation test of a 6-storey wood-frame building in Japan. In collaboration with APA–The Engineered Wood Association and the American Wood Council (AWC), a new framing arrangement was designed in this study to increase the vertical load resistance of midply shear walls and make it easier to accommodate electrical and plumbing services. In this study, a total of 12 midply shear wall specimens in four wall configurations with different sheathing thicknesses and nail spacing were tested under reversed cyclic loading. Test results showed that the modified midply shear walls have approximately twice the lateral load capacity of a comparable standard shear wall. The drift capacity and energy dissipation capability are also greater than comparable standard shear wall. Seismic equivalency to standard shear walls in accordance with ASTM D7989 was also conducted. Results show that an overstrength factor of 2.5 and can be used to assign allowable design strengths of midply shear walls with 7/16” and nail spacing at 4” or 3” on center. For midply shear walls with 19/32” OSB, a higher overstrength factor must be used to meet the ductility criteria. The information from this study will support code implementation of the midply shear walls in Canadian and US timber design standards, thereby providing more design options for light wood frame structures in North America.
n the first year of this project, literature reviews were conducted to identify the code requirements on MT components and to survey the available LLRSs used in the MT structures. Conceptual MT midply wall systems meeting structural, fire, and acoustical performance requirements were proposed. An advisory group meeting was held to evaluate the practicability of the proposed MT midply systems. In the next fiscal year, the proposed MT Midply will be optimised further according to the comments and suggestions from the advisory group. Analytical evaluation of the proposed MT Midply wall systems along with necessary tests will be conducted. Based on the evaluation, a go / no-go decision will be made as to whether the study should be continued for the proposed MT Midply.
This study focuses on measuring the wood moisture content (MC), temperature, and relative humidity (RH) (and the corresponding vapour pressure gradients) through each wall assembly to assess its hygrothermal performance. Controlled moisture loads, in the form of vapour
(achieved by maintaining a relatively high indoor RH) and liquid water (achieved by periodically injecting water to the wetting pads installed on the wood panels) are employed to stress these walls for investigating their moisture-related behaviour. After the wall panels and most instruments were installed but with the CLT directly exposed to the interior environment, a high indoor RH in range of 70-80% was maintained, starting mid-December 2020 inside the test hut to condition the wood to achieve comparable moisture gradients among the eight CLT panels. The test walls were closed in with interior framing (and interior insulation of walls No. 1 and No. 2) and drywall installed, followed with interior finishing in late January 2021. The indoor RH was afterwards set to be around 50%. Water injection is planned to start in the summer of 2021. Test results and performance of these walls will be presented and discussed in future reports.
Intelligent transportation system safety applications such as an approaching vehicle emergency warning, co-operative collision warning system, and co-operative adaptive cruise control, may have potential to improve road user safety on resource roads. This report documents a feasibility study of these safety applications under the operating environments and road conditions of resource roads. This report found that existing safety messages could be tailored to the needs of resource road operations. Two safety-related use cases
(i.e., oncoming vehicle warning and one-lane bridge warning), and two non–safety-related use cases (i.e., platooning and teleoperation) are presented.
This report is part of V2X report series. Refer Technical Report no. 20 to know more about user interface for broadcasting V2V basic safety messages to drivers and Technical Report no. 55 for V2X coverage results.
Design for Disassembly and Adaptability (DfD/A) is a sustainability approach that can help extend the lifespan of buildings, reduce generation of construction waste at the end-of-life and reduce construction’s footprint as well. This study qualitatively assesses six light wood-frame exterior wall assemblies designed for thermal performance. The assemblies studied are typical of low- and mid-rise wood buildings.
Results indicate that the exterior wall systems tested against the evaluation grid have a score of 15 points out of 40 points. Mere focus on thermal performance with no attention to deconstruction of components at the end-of-life is the reason for the poor score received from the evaluation. Findings indicate the need for incorporating DfD/A principles at the early-design stages of systems.
Building on the success of midply shear walls for wood-frame construction, a multi-year research project was initiated at FPInnovaitons to develop MT version of midply shear wall systems that have greater structural capacities, fire, and acoustical performance.