n collaboration avec l’Université de Victoria, on a mis au point un mur de cisaillement à haute capacité comportant deux rangées de clous au périmètre du revêtement. On a mené un programme d’essais pour évaluer la performance du mur de cisaillement proposé, ce qui comprend la résistance aux charges latérales et aux déplacements, le comportement hystérétique, la rigidité et la ductilité.
Les services offerts liés aux opérations forestières sont décrit dans cette brochure. Les informations sur les ateliers, les services professionnels, la bibliothèque virtuelle, les outils en ligne et les possibilitées d'interventions sont détaillées.
The services offered related to forest operations are outlined in this general brochure. Information on workshops, professional services, virtual library, online tools and opportunities for assessment and support are detailed.
Computer modelling is an essential part in the analysis and design of mid- and high-rise residential and commercial buildings as well as long-span structures. It is also a valuable tool in the optimisation of wood-based products, connections, and systems. An FPInnovations’ survey shows that practicing engineers are unfamiliar with timber structure modelling, and researchers generally lack resources for advanced modelling of timber systems. Furthermore, wood analysis and design modules currently implemented in a few structural analysis software are usually not suitable for complex or hybrid timber structures. This does not bode well given that performance-based design which is the future direction of building codes and material standards will rely even more on demonstrating the structural performance through computer modelling. In this project, a modelling guide for timber structures is being developed by FPInnovations with a global collaborative effort involving experts in various areas, with the aim of (a) assisting practicing engineers apply computer modelling to timber structures; (b) enriching researchers’ resources for advanced computer modelling of timber systems; and (c) assisting software companies to identify the gaps and upgrade their programs accordingly to accommodate advanced computer modelling of timber structures.
Fish passage assessment at culverted sites. Rapid field measurements to determine the likelihood of a barrier to fish passage. A practical guide for forest and resource workers
This guide is intended as a reference for use during the eld data collection phase of the provincial process in assessing sh passage at culverted sites.1 It is an important part of the provincial assessment process which uses a holistic watershed approach. The eld data can be used as part of the development of a sh passage restoration plan2 or as part of regular road maintenance inspections.
This guide helps forest workers chose preventive measures that will maintain natural drainage patterns, stabilize exposed soils and protect them from erosion and sedimentation during and following harvest operations. Controlling erosion beforehand minimizes sediment movement and is easier than having to deal with transported sediments later on.
Two methods for producing hardwood logs were studied: semi-length to be bucked at the mill yard and clean logs cut at the stump. For a given tree, equal sawable material can be expected from the two The clean log method offers higher pulpwood recovery and does not leave any waste at the stump. The productivity of the clean log harvesting method was lower due to the fact that it was still a relatively new approach.
This guide helps forest workers with best management practices and guidelines that, if applied, will help ensure good water quality and future tree growth.
This guide helps forest workers with best management practices that, if applied, will help prevent damage to crowns, stems and roots, ensure good tree growth and quality and avoid high restoration costs..
Réduire les dommages pendants les opérations de coupe partielle
Language
French
Abstract
Ce dépliant afin de faire des recommandations de saines pratiques aux travailleurs forestiers. Une fois appliquées, elle contribueront à assurer une bonne qualité de l'eau et une bonne croissance des arbres.
Réduire les dommages pendants les opérations de coupe partielle
Language
French
Abstract
Ce guide aide les travailleurs forestiers à choisir les mesures préventives qui maintiendront les régimes naturel de drainage, stabiliseront les sols exposés et le protégeront de l'érosion et de la sédimentation durant et après les opérations. Prévenir et limiter l'érosion minimise le déplacement des sédiments et est plus facile que devoir composer plus tard avec les sédiments déplacées.
Réduire les dommages pendants les opérations de coupe partielle
Language
French
Abstract
Ce dépliant fournira aux travailleurs forestiers des suggestions de saines pratiques. Si elles sont appliquées, elles peuvent contribuer à éviter les dommages aux cimes, aux troncs et aux racines. Ceci peut assurer une bonne croissance et une bonne qualité des tiges en évitant des coûts élevés de remise en état.
Réduire les dommages pendants les opérations de coupe partielle
Language
French
Abstract
Ce guide aidera les opérateurs de machinerie à adopter des saines pratiques et ainsi à éviter les dommages aux cours d'eau, s'il est nécessaire d'aménager des traverses.
This new study aims to generate hygrothermal, particularly moisture-related performance data for light wood-frame walls meeting the R22 effective (RSI 3.85) requirement for buildings up to six storeys in the City of Vancouver. The overarching goal is to identify and develop durable exterior wood-frame walls to assist in the design and construction of energy efficient buildings across the country. Twelve test wall panels in six types of wall assemblies are assessed in this study. The wall panels, each measuring 4 ft. (1200 mm) wide and 8 ft. (2400 mm) tall, form portions of the exterior walls of a test hut located in the rear yard of FPInnovations’ Vancouver laboratory. This report, second in a series on this study, documents the performance of these wall assemblies based on the data collected over 19 months’ period from October 2018 to May 2020, covering two winter seasons and one summer.
Building high energy efficiency has become a must to reduce carbon emission from the built environment and to meet needs of consumers. Industrialized construction provides an effective way to produce highly insulated and airtight building envelopes to achieve superior building performance, such as Net Zero Energy. However, it is important that as other attributes (e.g., seismic, wind, fire, vibration, etc.) are being addressed, further research is needed to develop well rounded building envelope solutions. Meanwhile, improvement may be made in automated production equipment and software to optimize and monetize these solutions.
Il est devenu indispensable de construire des bâtiments à haute efficacité énergétique pour réduire les émissions de carbone dans l’environnement et répondre aux besoins des consommateurs. La construction industrialisée est un bon moyen de produire des enveloppes de bâtiment bien isolées et étanches à l’air et, par le fait même, d’accroître la performance énergétique des bâtiments (p. ex consommation énergétique nette zéro). Cependant, il est important de tenir compte d’autres attributs (p. ex. charges sismiques, vent, feu, vibrations, etc.). Il faudra poursuivre les recherches pour trouver des solutions durables en matière d’enveloppes de bâtiment. Entre-temps, il est possible d’améliorer l’équipement de production automatisée et le logiciel qui l’accompagne afin d’optimiser et de rentabiliser ces solutions.
Hosted by Edouard Proust, this webinar presentation by David Bevly held on February 10, 2021 highlights an important component of FPInnovations' Transportation and Infrastructure group's work. The concept of truck platooning, inspired by pelotons of cyclists and originally developed for highway use to obtain fuel savings, utilizes technology to maintain the desired distance between trucks by controlling acceleration and braking, and the relative lateral position of the vehicles by steering, reacting faster than a driver can. Truck platooning has attracted the attention of the natural resources sector and its implementation is expected to increase the productivity of drivers. By allowing the operation of driverless following trucks replicating the path set by the human operated leader vehicle, the concept could help mitigate the workforce shortage that impact the sector while supporting the supply of lumber to mills across the country.
Abstract
Ce contenu est exclusivement en anglais. Merci de contacter notre équipe si vous souhaitez obtenir de l’information en français.
Cette présentation de David Bevly a été organisée le 10 février 2021 par Edouard Proust. Elle met en lumière une composante importante du travail effectué par le groupe Transports et Infrastructures de FPInnovations. Le concept d’opération de camions en peloton est inspiré des pelotons de cyclistes et a été mis au point à l’origine pour des applications autoroutières avec pour objectif une réduction de la consommation de carburant. Les camions sont équipés d’une technologie permettant le contrôle de l’accélération, du freinage et de la direction offrant la possibilité de maintenir la distance de suivi entre les véhicules ainsi que leur positionnement latéral relatif. En autorisant la mise en œuvre de camions suiveurs entièrement autonomes et qui répliquent le tracé du camion de tête opéré par un chauffeur, le concept pourrait à terme aider à minimiser l’impact du manque de chauffeurs dans l’industrie tout en supportant l’approvisionnement en fibre des scieries à travers le Canada.
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The clean air initiative led by the British Columbia Ministry of Environment seeks to develop innovative methods to improve community air quality by utilizing harvest residues and minimizing the volume of fibre burned at roadside. Retaining processed tops as roadside oriented piles is proposed as an alternative to burning debris.
These burn trials have demonstrated that in this unique arrangement of fuels and interaction of site-specific variables, particular areas of the piles will be more vulnerable to ignition sources which can lead to sustained burning and high intensity fire behaviour. In addition to the low fuel moisture conditions, other fuel properties, such as the close proximity of piles, high volume of fine fuels (branches and needles) and orientation of piles to road all contributed to enhanced burning at this site.
The production of conifer seedlings for reforestation purposes involves the use of genetic improvement techniques that have been around for the last few decades. They have greatly helped increase the hardiness and growth of propagated species.
Now, there is also genomic selection and somatic embryogenesis, two techniques made possible by scientific progress in genetics, computer science and cell culture.
