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Foam fire-suppression system for mobile forestry equipment

https://library.fpinnovations.ca/fr/permalink/fpipub39938
Auteur
Macey, T.
Date
December 1991
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Macey, T.
Date
December 1991
Genre du document
Research report
Description physique
4 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Fire
Safety
Equipment
Forestry
Série
Technical Note Wood Harvesting ; TN 175
Langue
English
Résumé
CABLE LOGGING
CABLES
Cable life
INSPECTION SYSTEM
ELECTROMEGNETIC WIRE ROPE INSPECTION (EWRI)
Prototype
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Modelling of dimension lumber in axial compression at elevated temperatures

https://library.fpinnovations.ca/fr/permalink/fpipub42020
Auteur
Van Zeeland, I.
Date
February 2001
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Van Zeeland, I.
Collaborateur
Canada. Canadian Forest Service
Date
February 2001
Genre du document
Research report
Description physique
68 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Mechanical properties
Fire
Série
Canadian Forest Service No. 9
E-3524
Localisation
Sainte-Foy, Québec
Langue
English
Résumé
The design of wood-frame structural systems to withstand exposure to fire depends on knowledge of the fire endurance (time-to-failure) of the wood members used in the system. In fires, wood looses part of its load-carrying capacity due to charring and part due to strength degradation. This thesis examines the reduction in compression strength experienced by dimension lumber when exposed to elevated temperatures. A program of experimental testing of nominal 2×4 Machine Stress Rated (MSR) lodgepole pine lumber concentrically loaded in compression and exposed to elevated temperature was undertaken by Forintek Canada Corp., Canada's wood products research institute. A computer program entitled HTExposure was written to simulate the experimental time-to-failure data gathered in Forintek's testing program. This computer program combines a modification of an existing heat-transfer model with various published compression-strength reduction models. This was done in order to determine which of those strength-reduction models could predict times-to-failure comparable to the observed values. As well, a new compression-strength reduction model was proposed. When predicted results were compared to the observed data, it was determined that the computer program predicted results closest to those observed when using the new compression-strength reduction model proposed in this study.
Lumber modelling
Axial compression
Elevated temperatures
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