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Lateral Resistance of Cross-Laminated Timber Panel-to-Panel Connections

https://research.thinkwood.com/en/permalink/catalogue1724
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Richardson, Benjamin
Hindman, Daniel
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Connections
Mechanical Properties
Keywords
Strength
Stiffness
Panel-to-Panel
Monotonic Loading
Cyclic Loading
Half-Lap
Butt-Joint
Steel Plate
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4655-4662
Summary
Cross laminated timber (CLT) connections in shearwalls require an understanding of the shear strength and stiffness of panel-to-panel connections within the wall. This research measures the strength and stiffness of three different panel-to-panel CLT connections considering both monotonic and cyclic loading. Connections included a...
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Mechanical Properties of Southern Pine Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue680
Year of Publication
2014
Topic
Mechanical Properties
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Beams
Author
Hindman, Daniel
Bouldin, John
Publisher
American Society of Civil Engineers
Year of Publication
2014
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Moisture
Keywords
Bending Strength
Bending Stiffness
Shear Strength
Delamination
Length
Language
English
Research Status
Complete
Series
Journal of Materials in Civil Engineering
Summary
Cross-laminated timber (CLT) is a novel wood building material suitable for floor, roof, and wall assemblies in low and mid- rise construction as an alternative to concrete and steel. CLTs are considered to provide good seismic resistance, fast erection times, carbon sequestration, and a significant reduction in greenhouse gas emissions over other construction materials. Southern pine is an abundant forest resource, yet has not been commercially used for CLT manufacturing. The purpose of this paper was to measure the bending and shear properties of CLT material fabricated using southern pine lumber compared to the ANSI/APA PRG-320 product standard. Bending strength, bending stiffness, shear strength, resistance to shear by compression loading strength, and resistance to delamination were measured according to ANSI/APA PRG-320, and test results were compared to the V3 grade values. Bending tests were conducted on jointed beams due to test length requirements. Bending strength, bending stiffness, and wood failure in resistance to shear by compression loading tests exceeded the published values for the V3 grade, while resistance to delamination did not meet the established criteria. The resistance to delamination results may have been effected by the uncontrolled moisture content of the lumber during fabrication of the CLTs. The application of glued laminated lumber standards to CLT products requires clarification in the orientation of loading directions for the resistance to shear by compression loading test and the measurement of all four sides of the resistance to delamination specimens. Increased scrutiny of moisture content quality control is highly encouraged for the production of CLTs.
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