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Bending strength properties of incised and preservative treated commercial 2 x 4 western softwood lumber

https://library.fpinnovations.ca/en/permalink/fpipub924
Author
Palka, L.C.
Morris, Paul I.
Walser, D.C.
Date
March 1992
Edition
37284
Material Type
Research report
Field
Sustainable Construction
Author
Palka, L.C.
Morris, Paul I.
Walser, D.C.
Date
March 1992
Edition
37284
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Preservation
Mechanical properties
Series Number
Forestry Canada No. 4
Contract no. 1712K007
W-937
Location
Vancouver, British Columbia
Language
English
Abstract
This study evaluated the effect of two different incisors followed by chromated copper arsenate pressure treatment on the bending strength and stiffness of No. 2 and better nominal 2 x 4 inch (38 x 89 mm) spruce-pine-fir and hem-fir lumber. The double-density incising method, developed at Forintek, allows SPF to meet the CSA O80 wood preservation standards. The high-speed incisor was developed by Forintek for operation immediately behind the planer in a sawmill to produce a treatable lumber product. The prototype tested here employed two solid rollers to lay down two superimposed patterns of incisions at a density of 17500/m2. Approximately 2900 specimens of SPF and 1200 specimens of hem-fir were sorted into nine and four matched groups, respectively, according to their average flatwise modulus of elasticity values tested in centre point bending. The matched groups were then given various combinations of drying, incising and pressure treatments. Bending strength properties were tested. It was found that kiln-dried SPF and green hem-fir commercial dimension lumber, treated by the above processes, can be safely used for all structural purposes for which preservative treatment is required.
Preservation - Influence on mechanical properties
Preservation - Incising
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Duration of load effects on 2 x 4 spruce lumber in bending, tension and compression: fifth (final) combined data report. April 1991 to March 1992

https://library.fpinnovations.ca/en/permalink/fpipub5496
Author
Karacabeyli, Erol
Stroh, L.
Date
March 1992
Edition
37269
Material Type
Research report
Field
Sustainable Construction
Author
Karacabeyli, Erol
Stroh, L.
Date
March 1992
Edition
37269
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Tension
Strength load bearing
Compression
Bending
Mechanical properties
Picea
Loads
Series Number
Forestry Canada Contract
Contract no. 1565K402
W-908
Location
Vancouver, British Columbia
Language
English
Abstract
This report is the fifth (and final) combined data report in a series of reports containing constant bending, tension and compression test results, prepared annually in partial fulfilment of the requirements of a Forestry Canada/Forintek Canada Corp. contract.
Strength - Load bearing - Influence of duration
Strength - Bending
Strength - Compression
Strength - Tension
Picea - Strength
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Effect of moisture on OSB properties : progress report

https://library.fpinnovations.ca/en/permalink/fpipub38444
Author
Tardif, Y.G.
Onysko, D.M.
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
Author
Tardif, Y.G.
Onysko, D.M.
Date
March 1992
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strands
Physical properties
OSB
Oriented strandboard
Orientation
Mechanical properties
Series Number
Forestry Canada No.7
3110M020
E-1286
Location
Ottawa, Ontario
Language
English
Abstract
Oriented Strand Board (OSB)
Moisture content
Physical properties
Mechanical properties
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Non-residential applications of glulam - final report

https://library.fpinnovations.ca/en/permalink/fpipub37271
Author
Karacabeyli, Erol
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
Author
Karacabeyli, Erol
Date
March 1992
Material Type
Research report
Physical Description
66 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Veneer
Roofs
Trusses
Mechanical properties
Laminate product
Series Number
Forestry Canada No. 16
Contract no. 1510K014
W-910
Location
Vancouver, British Columbia
Language
English
Abstract
A database has been developed to support the expanding use of glulam in non-residential applications. The increase in the use of glulam requires high-value laminating lumber. Other wood products such as purlins and sheathing material usually are also required when glulam members are used in structure. The database contains test results on laminating lumber grades, finger joints, and 14t-E and 12c-E grade spruce/lodgepole pine/Jack pine glulam members, and theoretical and experimental results on glulam trusses with punched metal plate joints. This database is expected to provide the basis for reliability-based design values for glulam in the 1994 edition of the Canadian Engineering Design Standard for Wood (CSA-O86.1). It also makes possible a new glulam application, metal plated glulam trusses. It is anticipated that the engineering design community, glulam industry, laminating lumber producers, wood truss fabricators, and metal truss plate manufacturers will benefit from the technical information developed in this project.
Lumber, Laminated veneer
Trusses - Strength
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Physical and mechanical properties of lumber exposed to fire : a critical review

https://library.fpinnovations.ca/en/permalink/fpipub38446
Author
Lau, P.W.C.
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
AND MECHANICAL PROPERTIES OF LUMBER EXPOSED TO FIRE — A CRITICAL REVIEW V By Peter W.C. Lau Research
Author
Lau, P.W.C.
Date
March 1992
Material Type
Research report
Physical Description
34 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Physical properties
Mechanical properties
Series Number
Forestry Canada No. 46
3115K341
E-1289
Location
Ottawa, Ontario
Language
English
Abstract
Burned Lumber
Physical properties
Mechanical properties
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Physical and strength properties of lumber exposed to fire : summary report

https://library.fpinnovations.ca/en/permalink/fpipub38738
Author
Lau, P.W.C.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
and mechanical properties of lumber has been critically reviewed. Implications Depending upon the loading mode
Author
Lau, P.W.C.
Date
March 1992
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Mechanical properties
Physical properties
Series Number
3115K341
E-2339
Location
Ottawa, Ontario
Language
English
Abstract
Physical properties
Strength Properties
Lumber
Exposed
Fire
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Rationalizing compression perpendicular to grain: constant loading test plan - progress report

https://library.fpinnovations.ca/en/permalink/fpipub37273
Author
Lum, Conroy
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
but homogeneous mechanical properties. In the analysis, we did not permit the bearing plate to rotate
Author
Lum, Conroy
Date
March 1992
Material Type
Research report
Physical Description
43 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Compression
Mechanical properties
Series Number
Forestry Canada No. 17
Contract no. 1510K018
W-912
Location
Vancouver, British Columbia
Language
English
Abstract
The design procedures for compression perpendicular-to-grain (C-perp) loading in the Canadian Engineering Design in Wood code (CAN/CSA-O86.1-M89) needs to be rationalized to eliminate the inconsistencies in design values and design procedures. This report focuses on developing the data necessary for removing the differences between the C-perp design procedures contained in the glued-laminated timber and the sawn lumber sections. The report presents a description of the ramp and constant load tests on spruce/pine and Douglas-fir wood samples, as well as summaries of data collected to date.
Strength - Compression - Perpendicular to grain
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7 records – page 1 of 1.