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Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Modelling of Timber Connections Under Force and Fire

https://research.thinkwood.com/en/permalink/catalogue1473
Year of Publication
2018
Topic
Connections
Fire
Seismic
Design and Systems
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Connections
Fire
Seismic
Design and Systems
Keywords
Finite Element Model
Bolted Connection
Load-Displacement Curves
Language
English
Research Status
Complete
Summary
FPInnovations carried out a survey with consultants and researchers on the use of analytical models and software packages related to the analysis and design of mass timber buildings. The responses confirmed that a lack of suitable models and related information for material properties of timber connections was creating an impediment to the design and construction of this type of buildings. Furthermore, there is currently a lack of computer models and expertise for carrying out performance-based design for wood buildings, in particular seismic and/or fire performance design. In this study, a sophisticated constitutive model for wood-based composite material under stress and temperature was developed. This constitutive model was programmed into a user-subroutine which can be added to most general-purpose finite element software. The developed model was validated with test results of a laminated veneer lumber (LVL) beam and glulam bolted connection under force and/or fire.
Online Access
Free
Resource Link
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Analysis of Full-Scale Fire-Resistance Tests of Structural Composite Lumber Beams

https://research.thinkwood.com/en/permalink/catalogue366
Year of Publication
2014
Topic
Fire
Material
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
PSL (Parallel Strand Lumber)
Application
Beams
Author
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2014
Country of Publication
Canada
Format
Report
Material
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
PSL (Parallel Strand Lumber)
Application
Beams
Topic
Fire
Keywords
Encapsulation
Type X Gypsum Board
Fire Resistance
Full Scale
Language
English
Research Status
Complete
Summary
The key objective of this study is to analyze full-scale fire-resistance tests conducted on structural composite lumber (SCL), namely laminated veneer lumber (LVL), parallel strand lumber (PSL) and laminated strand lumber (LSL)...
Online Access
Free
Resource Link
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Literature Survey on Nail-Laminated Timber and Box Beam

https://research.thinkwood.com/en/permalink/catalogue1210
Year of Publication
2017
Topic
Design and Systems
Market and Adoption
Material
NLT (Nail-Laminated Timber)
Application
Beams
Author
Ni, Chun
Karacabeyli, Erol
Organization
FPInnovations
Year of Publication
2017
Country of Publication
Canada
Format
Report
Material
NLT (Nail-Laminated Timber)
Application
Beams
Topic
Design and Systems
Market and Adoption
Keywords
Box Beams
Mechanical Joints
CSA 086
Language
English
Research Status
Complete
Summary
Nail-Laminated Timber (NLT) and box beam are efficient and economical engineered wood products. Although NLT has been used in North America for more than a century, only in recent years it has gained renewed interests as they have been seen as the most economical panel products used in mass timber buildings. Box beams, on the other hand, are lightweight and generally possess higher strength and stiffness than comparable-sized solid timber and are more efficient than solid timber large spans and loads. In this report, existing design provisions and their limitations for the design and construction of NLT in box beam in Canadian standards are reviewed. For NLT, there is a general lack of information related to manufacturing, design and construction to ensure consistent manufacturing and installation practices. Therefore, it is difficult to research and document with confidence the full range of performance that can be achieved with NLT. It is therefore recommended that a North American product standard and design information on structural performance, floor vibration, fire resistance, acoustic performance, and construction risk mitigation measures (e.g. moisture and fire) be developed. In CSA 086, design methods are limited to box beams with flanges and webs bonded with glue. As the flanges and webs of a box beam can be assembled by either glue or mechanical fasteners, it is recommended that design provisions for box beam with mechanical joints be also developed. With the information in Eurocode 5 and relevant supporting research papers, it is ready to be implemented.
Online Access
Free
Resource Link
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