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33 records – page 1 of 4.

Bending strength and stiffness of log stringers for bridges on forest roads: tests of second-growth Douglas-fir and western hemlock logs

https://library.fpinnovations.ca/en/permalink/fpipub5843
Author
Bennett, Douglas M.
Modesto, R.
Ewart, Jim
Jokai, Rob
Parker, Seamus
Clark, Marv
Date
January 2005
Edition
40689
Material Type
Research report
Field
Fibre Supply
Author
Bennett, Douglas M.
Modesto, R.
Ewart, Jim
Jokai, Rob
Parker, Seamus
Clark, Marv
Date
January 2005
Edition
40689
Material Type
Research report
Physical Description
19 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation Infrastructure
Subject
Test methods
Mechanical properties
Second growth
Ruptures
Procedures
Logs
Sample
Growth
Design
British Columbia
Bending
Advantage
Series Number
Advantage ; Vol. 5, No. 42
Language
English
Abstract
In order to provide bridge designers with better information, International Forest Products Limited (Interfor) asked the Forest Engineering Resarach Institute of Canada (FERIC) to evaluate the bending strength and stiffness of log stringers used for constructing bridges on forest roads in coastal British Columbia. Given the lack of definitive standards for testing this material, FERIC developed a field-based test procedure and designed a test facility for destructive testing of full-size, whole-log stringers obtained from second-growth stands. Sixteen coastal Douglas-fir and twelve western hemlock logs were tested in 2003. This report describes the test procedure and methods of analysis, presents the log bending strength and stiffness results, and makes recommendations regarding future testing.
Bridge design
Log stringers
Bending strength
Modulus of rupture
Modulus of elasticity
Test procedure
Second-growth logs
Douglas fir
Western hemlock
Coastal British Columbia
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Bending tests of plywood box beams from an Expo '67 structure

https://library.fpinnovations.ca/en/permalink/fpipub1729
Author
Bellosillo, S.B.
Date
March 1981
Edition
38246
Material Type
Research report
Field
Sustainable Construction
Author
Bellosillo, S.B.
Date
March 1981
Edition
38246
Material Type
Research report
Physical Description
37 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Testing
Plywood
Bending
Beams
Series Number
CFS project 11
E-850
Location
Ottawa, Ontario
Language
English
Abstract
Beams - Testing
Beams, Plywood - Bending
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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
that requires research is the strength of lumber under combined bending and axial loading conditions
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 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
Laboratory (USFPL) as primary research agencies. A comparison of stress ratio data sets for the bending
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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Détermination des facteurs de correction applicables pour les bouts en porte-à-faux lors d'essais en flexion avec chargement aux tiers points sur un banc d'essai inversé

https://library.fpinnovations.ca/en/permalink/fpipub39412
Author
Grandmont, Jean-Francois
Date
May 2012
Material Type
Research report
Field
Sustainable Construction
Author
Grandmont, Jean-Francois
Contributor
Canada. Canadian Forest Service
Date
May 2012
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Wood
Mechanical properties
Design
Bending
Series Number
Projet 201004681
E-4757
Location
Québec, Québec
Language
French
Abstract
Engineered Wood Products - Design
Bending strength
Abstract
Des facteurs de correction sont disponibles lors d’essais de flexion aux tiers points afin de prendre en compte le fait d’avoir une section de l’échantillon testé qui soit en porte-à-faux. Ces facteurs sont disponibles pour les pièces aux dimensions nominales courantes mais pas pour le 2’’x5’’. Le but était donc de pallier à ce manque.
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Duration of load effects for 2 x 4 spruce lumber in bending

https://library.fpinnovations.ca/en/permalink/fpipub5458
Author
Palka, L.C.
Samson, M.
Hejja, A.
Date
March 1985
Edition
37005
Material Type
Research report
Field
Wood Manufacturing & Digitalization
DURATION OF LOAD EFFECTS FOR 2 x 4 SPRUCE LUMBER IN BENDING: FIRST DATA REPORT by L.C
Author
Palka, L.C.
Samson, M.
Hejja, A.
Date
March 1985
Edition
37005
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Bending
Mechanical properties
Picea
Series Number
CFS Contract 02-50-65-594
W-208
Location
Vancouver, British Columbia
Language
English
Abstract
Picea glauca - Strength
Strength - Bending - Tests
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Duration of load effects for 2x4 spruce lumber in bending : second data report (April 1985 to March 1986)

https://library.fpinnovations.ca/en/permalink/fpipub37128
Author
Karacabeyli, Erol
Date
March 1986
Material Type
Research report
Field
Wood Manufacturing & Digitalization
C o n f i d e n t i a l DURATION OF LOAD EFFECTS FOR 2x4 SPRUCE LUMBER IN BENDING: SECOND
Author
Karacabeyli, Erol
Date
March 1986
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Bending
Mechanical properties
Picea
Loads
Series Number
DSS File No. 55SS.01 K02-5-0065-2
Contract No.04-54-65-012
W-362
Location
Vancouver, British Columbia
Language
English
Abstract
Strength - Load bearing - Influence of duration
Strength - Bending - Tests
Picea glauca - Strength
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Duration of load effects for 2 x 8 spruce lumber in bending : fourth data report (April 1985 to March 1986)

https://library.fpinnovations.ca/en/permalink/fpipub37129
Author
Karacabeyli, Erol
Date
March 1986
Material Type
Research report
Field
Wood Manufacturing & Digitalization
C o n f i d e n t i a l DURATION OF LOAD EFFECTS FOR 2 x 8 SPRUCE LUMBER IN BENDING: FOURTH
Author
Karacabeyli, Erol
Date
March 1986
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Bending
Mechanical properties
Picea
Loads
Series Number
DSS File No. 55SS.01 K02-5-0065-3
Contract No.04-54-65-012
W-363
Location
Vancouver, British Columbia
Language
English
Abstract
Strength - Load bearing - Influence of duration
Strength - Bending - Tests
Picea glauca - Strength
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Duration of load effects in 2x4 spruce lumber in bending : third data report. April 1986 to March 1987

https://library.fpinnovations.ca/en/permalink/fpipub37170
Author
Karacabeyli, Erol
Date
March 1987
Material Type
Research report
Field
Wood Manufacturing & Digitalization
1X2 DURATION OF LOAD EFFECTS IN 2X4 SPRUCE LUMBER IN BENDING THIRD DATA REPORT April 1986
Author
Karacabeyli, Erol
Date
March 1987
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Bending
Mechanical properties
Loads
Series Number
CFS Contract;04-54-65-012
W-438
Location
Vancouver, British Columbia
Language
English
Abstract
Strength - Load bearing - Influence of duration
Strength - Bending
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Duration of load effects in 2x8 spruce lumber in bending : fifth data report. April 1986 to March 1987

https://library.fpinnovations.ca/en/permalink/fpipub37172
Author
Karacabeyli, Erol
Date
March 1987
Material Type
Research report
Field
Wood Manufacturing & Digitalization
1X2 DURATION OF LOAD EFFECTS IN 2X8 SPRUCE LUMBER IN BENDING FIFTH DATA REPORT April 1986
Author
Karacabeyli, Erol
Date
March 1987
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Bending
Mechanical properties
Picea
Loads
Series Number
CFS Contract;04-54-65-012
W-440
Location
Vancouver, British Columbia
Language
English
Abstract
Strength - Load bearing - Influence of duration
Picea glauca - Strength - Bending
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33 records – page 1 of 4.