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54 records – page 1 of 6.

Apparatus for duration of load compression tests of dimension lumber

https://library.fpinnovations.ca/en/permalink/fpipub5460
Author
Samson, M.
Olson, S.L.
Date
March 1985
Edition
37007
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Samson, M.
Olson, S.L.
Date
March 1985
Edition
37007
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Compression
Mechanical properties
Picea
Loads
Series Number
CFS Contract 02-50-65-593
W-211
Location
Vancouver, British Columbia
Language
English
Abstract
Picea glauca - Strength
Strength - Compression - Parallel to grain
Strength - Load bearing - Influence of duration
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Bearing strength of hem-fir

https://library.fpinnovations.ca/en/permalink/fpipub1006
Author
Lum, Conroy
Date
March 1995
Edition
37383
Material Type
Research report
Field
Sustainable Construction
Author
Lum, Conroy
Contributor
Canada. Canadian Forest Service.
Date
March 1995
Edition
37383
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Mechanical properties
Loads
Series Number
W-1216
Location
Vancouver, British Columbia
Language
English
Abstract
Higher bearing strength values for Hem-Fir, where justified, will allow designers to realise the full strength potential of the lumber. Machine stress rated (MSR) lumber would benefit the most from an increase in the Hem-Fir bearing strength. Although there are few Hem-Fir MSR lumber producers, it is anticipated that given the recent or planned increase in installed kiln capacity on the west coast, more mills will be considering producing MSR lumber. Acceptance of Hem-Fir MSR lumber in the marketplace will depend on the design values assigned to Hem-Fir MSR lumber. The objective of this project is to establish characteristic bearing strength values for the Hem-Fir species group in CSA O86.1 and progress to date is described.
Strength - Load bearing
Hem-fir - Strength
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Behavior of mechanically fastened joints in wood under static loading

https://library.fpinnovations.ca/en/permalink/fpipub1866
Author
Havard, J.C.
Lau, P.W.C.
Date
November 1985
Edition
38387
Material Type
Research report
Field
Sustainable Construction
Author
Havard, J.C.
Lau, P.W.C.
Date
November 1985
Edition
38387
Material Type
Research report
Physical Description
16 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Joints
Strength load bearing
Location
Ottawa, Ontario
Language
English
Abstract
Static Loading
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Canadian lumber properties 2007-08 activities

https://library.fpinnovations.ca/en/permalink/fpipub1369
Author
Lum, Conroy
Date
March 2008
Edition
37861
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lum, Conroy
Contributor
Natural Resources Canada. Canadian Forest Service
National Lumber Grades Authority
Date
March 2008
Edition
37861
Material Type
Research report
Physical Description
[13 p.]
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Mechanical properties
Loads
Series Number
5893
W-2480
Location
Vancouver, British Columbia
Language
English
Abstract
This report summarizes the progress from Year 3 of the multi-year Lumber Properties project. All activities continue to conform to the guiding principles adopted by the Lumber Properties Steering Committee (LPSC) at the start of the program. This year the first steps were taken in preparing information for discussion with the new American Lumber Standard Committee (ALSC) Lumber Properties Task Group (TG). Work continues on the review of the Norway spruce testing program and the development of an on-going monitoring program. The program has enabled the wider industry group represented by the LPSC, to be involved in monitoring progress on the program and providing strategic direction. The support has also enabled the program to retain the necessary statistical support from the University of British Columbia to not only address Canadian lumber property issues, but also contribute to technical discussions at the ALS Lumber Properties TG.
Lumber - Strength
Strength - Load bearing
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Canadian lumber properties 2008-09 activities

https://library.fpinnovations.ca/en/permalink/fpipub1436
Author
Lum, Conroy
Date
March 2009
Edition
37937
Material Type
Research report
Field
Sustainable Construction
Author
Lum, Conroy
Contributor
Canadian Forest Service.
National Lumber Grades Authority
Date
March 2009
Edition
37937
Material Type
Research report
Physical Description
56 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Mechanical properties
Loads
Grading
Series Number
Project No. 5893
W-2625
Location
Vancouver, British Columbia
Language
English
Abstract
This report summarizes the progress from Year 4 of the multi-year Lumber Properties project. All activities continue to conform to the guiding principles adopted by the Lumber Properties Steering Committee (LPSC) at the start of the program. This year support was provided to statisticians from the University of British Columbia’s Department of Statistics to meet and work with researchers and statisticians from the US Forest Products Laboratory (USFPL) in Madison, WI. All physical testing under the ongoing monitoring pilot study was also completed, allowing the UBC statisticians to continue work refining their global lumber properties simulator. Work is continuing on the collection of secondary properties for Norway spruce and on the analysis of the data collected to-date. No activities requiring significant resources were carried out under the Resource Assessment and the Special Products Initiative. Instead, these resources were redirected to cover shortfalls in the provincial funding under the Strategic Framework Initiative, so that the statistical work with the USFPL could continue.
Lumber - Strength
Strength - Load bearing
Grading - Lumber
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Canadian lumber properties 2009-10 activities

https://library.fpinnovations.ca/en/permalink/fpipub2674
Author
Lum, Conroy
Date
March 2010
Edition
39276
Material Type
Research report
Field
Sustainable Construction
Author
Lum, Conroy
Date
March 2010
Edition
39276
Material Type
Research report
Physical Description
90 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Mechanical properties
Loads
Grading
Series Number
Canadian Forest Service
W-2766
Location
Vancouver, British Columbia
Language
English
Abstract
The current Canadian Lumber Properties program was established to support multi-year research on topics judged by the industry to be critical to the safe and viable use of Canadian dimension lumber in structural applications. This program, in combination with the National Lumber Grades Authority’s grading rules and the accredited third party grading agencies form the backbone of the Canadian lumber quality system. This system enables Canadian lumber producers to grade and ship Canadian lumber for use in North American and overseas structural building applications. When initiated in 2005, the program focussed on five areas. The effort is now focussed on three areas: 1) maintenance of existing lumber design values by means of an ongoing lumber properties monitoring program; 2) working with the US/Canada task group established to guide the development of standard procedures published in ASTM D1990 and used in the establishment of lumber design values; and 3) liaise with university-based research groups to leverage research suitable for addressing longer-term research needs in the area of lumber properties. One of the planned activities for 2009-10 was the start-up of a trial on-going lumber properties monitoring program. The program, which is a longitudinal survey of lumber produced from mills across Canada, would have been modelled after the Pilot Ongoing Monitoring program that began in 2006 and ended in 2008. Because of the severe downturn in the industry starting in 2008, the proposed 2009-10 program needed to be postponed to accommodate the shortfall in industry funding. There were also concerns with the significant changes in production levels both within and between regions, and the potential disruptions to sampling because of unanticipated mill closures. Available resources were instead directed at establishing how best to respond to practical issues observed during the downturn, such as the closure of a mill that would have or had been providing samples. Following discussions during the year and consideration of possible alternatives, it is recommended that the sampling plan as used in the Pilot program be restarted. Additional details on the augmented mill list to account for mill closures are provided in the recommendations section of this report. In the other major area of study, University of BC (UBC) and US Forest Products Laboratory (USFPL) statisticians met to discuss and evaluate alternatives to the ASTM D1990 procedures for developing design values for groups of wood species. Although the proposed alternative procedures would address one or more of the statistical anomalies identified in the ASTM D1990 procedure, the American Lumber Standard Committee (ALSC) Lumber Properties Task Group (LPTG) charged with reviewing the potential changes did not see any practical improvements to warrant changes to the procedures but suggested that the effort focus on establishing criteria for species grouping. Because of the potential inter-relationship between the species grouping procedures and other procedures used to assess in-grade lumber properties, it is recommended that efforts be maintained in this area and adjusted as required to respond to the needs of the LPTG. Lastly, in late 2009, the UBC Dept. of Statistics and the Simon Fraser University Dept. of Statistics and Actuarial Science were awarded a research grant by the Natural Sciences and Engineering Research Council (NSERC) of Canada to establish the “Forest Products Stochastic Modeling Group”. FPInnovations is the industrial collaborator on this initiative. Several student projects targeting longer-term lumber properties research needs have been initiated, and a sample of suggested projects is included in the appendix of this report.
Lumber - Strength
Strength - Load bearing
Grading - Lumber
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Combined loading tester for lumber

https://library.fpinnovations.ca/en/permalink/fpipub993
Author
Lum, Conroy
Date
March 1995
Edition
37369
Material Type
Research report
Field
Sustainable Construction
Author
Lum, Conroy
Contributor
Canada. Canadian Forest Service.
Date
March 1995
Edition
37369
Material Type
Research report
Physical Description
12 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Bending
Mechanical properties
Loads
Series Number
Canadian Forest Service No. 16
Contract no. 1510K026
W-1183
Location
Vancouver, British Columbia
Language
English
Abstract
Changes to the Canadian timber engineering codes over the last 10 years have made it necessary for the wood truss industry to update the wood truss design procedures. The Truss Research Project was established to assist the truss industry to resolve some of the issues arising from the code changes. While most of the issues deal with the analysis of metal plate connected trusses and are therefore specific to the truss industry, some issues that deal with the fundamental strength properties of lumber apply to other engineered timber construction. One area that requires research is the strength of lumber under combined bending and axial loading conditions. A program to model the within-member strength variations of lumber is underway at the University of British Columbia. The purpose of this Forintek project is to develop equipment that can test lumber under combined bending and axial loads. This equipment will be used to validate the lumber strength model. The equipment to test lumber under bending and axial loading has been developed. This report presents a discussion of the equipment specifications and some of the limitations of the equipment identified to-date. The combined loading tester for lumber is currently undergoing verification and trial testing. It will be ready for use in the 1995/96 fiscal year.
Lumber - Strength
Strength - Load bearing
Strength - Bending - Tests
Load measuring devices
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Comparison testing for U.S./Canada DOL test program: second report

https://library.fpinnovations.ca/en/permalink/fpipub36937
Author
Karacabeyli, Erol
Date
March 1990
Material Type
Research report
Field
Sustainable Construction
Author
Karacabeyli, Erol
Date
March 1990
Material Type
Research report
Physical Description
39 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Mechanical properties
Loads
Series Number
Forestry Canada Contract
contract no.5465K405
W-789
Location
Vancouver, British Columbia
Language
English
Abstract
Summary included
Strength - Load bearing - Influence of duration
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Comparison testing for US/Canada duration of load test program: first report

https://library.fpinnovations.ca/en/permalink/fpipub5444
Author
Karacabeyli, Erol
Fraser, Henley
Stroh, L.
Date
March 1989
Edition
36920
Material Type
Research report
Field
Sustainable Construction
Author
Karacabeyli, Erol
Fraser, Henley
Stroh, L.
Date
March 1989
Edition
36920
Material Type
Research report
Physical Description
56 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Bending
Mechanical properties
Loads
Series Number
CFS Contract 5443W316
W-651
Location
Vancouver, British Columbia
Language
English
Abstract
Summary included
Strength - Load bearing - Influence of duration
Strength - Bending - Tests
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Design guidelines for lateral load resisting systems in wood construction

https://library.fpinnovations.ca/en/permalink/fpipub39404
Author
Popovski, Marjan
Date
March 2012
Material Type
Guide
Research report
Field
Sustainable Construction
Author
Popovski, Marjan
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2012
Material Type
Guide
Research report
Physical Description
115 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Strength load bearing
Mechanical properties
Specifications
Loads
Specification
Design
Building construction
Series Number
Canadian Forest Service No. 03
W-2886
Location
Vancouver, British Columbia
Language
English
Abstract
A new design Section on Lateral Load Resisting Systems (LLRSs) was introduced in the 2009 edition of Canadian Standard for engineering Design in Wood (CSA O86). The activities presented in this report (development of technical papers, development of technical polls and attending various code committees) have a goal to continue the work in this field by further improving the new Section on LLRSs by implementing additional design information for other wood-based structural systems and assemblies. During the last two years, several technical polls and papers were developed and presented to various code committees for future code implementation. These activities will help design engineers to use timber in structural systems in residential and non-residential buildings in Canada and the US.
Building construction - Design
Strength - Load bearing - Specifications
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54 records – page 1 of 6.