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6 records – page 1 of 1.

Development of Design Values for Hem-Fir Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue116
Year of Publication
2015
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Pirvu, Ciprian
Organization
FPInnovations
Year of Publication
2015
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Mechanical Properties
Keywords
Hem-Fir
Visually graded
Machine Stress Rated
Durability
Bondlines
Canada
US
Language
English
Research Status
Complete
Summary
The North American product standard for performance-rated cross-laminated timber (CLT), ANSI/APA PRG 320, was published in 2012. The standard recognizes the use of all major Canadian and US softwood species groups for CLT manufacturing and provides design...
Online Access
Free
Resource Link
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In-Situ Testing at Wood Innovation and Design Centre: Floor Vibration, Building Vibration, and Sound Insulation Performance

https://research.thinkwood.com/en/permalink/catalogue284
Year of Publication
2015
Topic
Acoustics and Vibration
Material
CLT (Cross-Laminated Timber)
Application
Walls
Floors
Author
Hu, Lin
Pirvu, Ciprian
Ramzi, Redouane
Organization
FPInnovations
Year of Publication
2015
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Walls
Floors
Topic
Acoustics and Vibration
Keywords
Natural Frequency
Damping Ratio
Static Deflection Testing
Vibration Performance
Sound Transmission
Language
English
Research Status
Complete
Summary
In order to address the lack of measured natural frequencies and damping ratios for wood and hybrid wood buildings, and lack of knowledge of vibration performance of innovative CLT floors and sound insulation performance of CLT walls and floors, FPInnovations conducted...
Online Access
Free
Resource Link
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The North American Product Standard for Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue760
Year of Publication
2012
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Yeh, Borjen
Gagnon, Sylvain
Williamson, Tom
Pirvu, Ciprian
Lum, Conroy
Kretschmann, David
Publisher
Forest Products Society
Year of Publication
2012
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Market and Adoption
Keywords
International Building Code
North America
Standards
Language
English
Research Status
Complete
Series
Wood Design Focus
Online Access
Free
Resource Link
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Sound Insulation Performance of Elevator Shaft Walls built with Nail-Laminated Timber Panels - Exploratory Tests and Preliminary Results

https://research.thinkwood.com/en/permalink/catalogue364
Year of Publication
2016
Topic
Acoustics and Vibration
Material
NLT (Nail-Laminated Timber)
Application
Shafts and Chases
Author
Pirvu, Ciprian
Organization
FPInnovations
Year of Publication
2016
Country of Publication
Canada
Format
Report
Material
NLT (Nail-Laminated Timber)
Application
Shafts and Chases
Topic
Acoustics and Vibration
Keywords
Building Codes
Canada
Sound Insulation
Apparent Sound Insulation Class
Language
English
Research Status
Complete
Summary
As 6-storey wood-frame, massive-timber and hybrid wood buildings are increasingly accepted by more jurisdictions across Canada, there is a need to develop reliable elevator shaft designs that meet the minimum structural, fire, and sound requirements in building...
Online Access
Free
Resource Link
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Time-Dependent Behavior of Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue1111
Year of Publication
2014
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Pirvu, Ciprian
Organization
FPInnovations
Year of Publication
2014
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Mechanical Properties
Keywords
Creep
Duration of Load
Time Dependent Behavior
Stiffness
Deflection
Language
English
Research Status
Complete
Summary
Cross laminated timber (CLT) panels were manufactured and tested to assess their time dependent behaviour. This study is intended to help guide the development of an appropriate test method and acceptance criteria to account for duration of load and creep effects in the design of structures using CLT.
Online Access
Free
Resource Link
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US Edition - Chapter 6: Duration of Load and Creep Factors for Cross-Laminated Timber Panels

https://research.thinkwood.com/en/permalink/catalogue825
Year of Publication
2013
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Pirvu, Ciprian
Douglas, Bradford
Yeh, Borjen
Organization
FPInnovations
Binational Softwood Lumber Council
Year of Publication
2013
Country of Publication
Canada
United States
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Mechanical Properties
Keywords
Creep
Duration of Load
Time Dependent Behavior
Language
English
Research Status
Complete
Series
CLT Handbook - US Edition
ISBN
978-0-86488-553-1
ISSN
1925-0495
Summary
Cross-laminated timber (CLT) products are used as load-carrying slab and wall elements in structural systems, thus load duration and creep behavior are critical characteristics that must be addressed in structural design. Given its lay-up construction with orthogonal arrangement of layers bonded with structural adhesive, CLT is more prone to time-dependent deformations under load (creep) than other engineered wood products such as structural glued-laminated timber. Time dependent behavior of structural wood products is addressed in design standards by load duration factors that adjust design properties. Since CLT has been recently introduced into the North American market, the current design standards and building codes do not specify load duration and creep adjustment factors for CLT. Until this can be rectified, an approach is proposed in this Chapter for adopter of CLT systems in the United States. This includes not only load duration and service factors, but also an approach to accounting for creep in CLT structural elements.
Online Access
Free
Resource Link
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6 records – page 1 of 1.