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12 records – page 1 of 2.

Advanced Wood Product Manufacturing Study for Cross-Laminated Timber Acceleration in Oregon & SW Washington, 2017

https://research.thinkwood.com/en/permalink/catalogue715
Year of Publication
2017
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Organization
Oregon BEST
Year of Publication
2017
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
Market
US
Economic Impact
Language
English
Research Status
Complete
Summary
Oregon and southwest Washington are poised as a manufacturing hub for the emerging Cross Laminated Timber (CLT) market in the United States. The region is bountiful with luscious forestland, a large percentage of which is designated as working forests. Thirty million acres of forest span across Oregon alone. As a value add product that has environmental and social co-benefits, CLT is economically competitive as a structural framing product for multi-story, even high-rise building construction: a market previously dominated by concrete and steel. The research and outreach activities performed as part of this 2015-2017 study have played a vital role in continuing the advancement of the CLT market in Oregon & SW Washington. Eager regional stakeholders see CLT and other mass timber panel products as forest products capable of providing economic benefit to communities within our region that had grown around forest product industries.
Online Access
Free
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Pacific Northwest Region of the United States

https://research.thinkwood.com/en/permalink/catalogue783
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Country of Publication
United States
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
US
Cradle-to-Gate
Production
Life-Cycle Inventory
Life-Cycle Impact Assessment
Language
English
Research Status
Complete
Summary
The goal of this study was to update life-cycle assessment (LCA) data associated with laminated veneer lumber (LVL) production in the Pacific Northwest (PNW) region of the United States from cradle-to-gate mill output. The authors collected primary mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of this study.
Online Access
Free
Resource Link
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Cradle-To-Gate Life-Cycle Assessment of Laminated Veneer Lumber (LVL) Produced in the Southeast Region of the United States

https://research.thinkwood.com/en/permalink/catalogue782
Year of Publication
2017
Topic
Environmental Impact
Material
LVL (Laminated Veneer Lumber)
Author
Bergman, Richard
Alanya-Rosenbaum, Sevda
Organization
Forest Products Laboratory
Year of Publication
2017
Country of Publication
United States
Format
Report
Material
LVL (Laminated Veneer Lumber)
Topic
Environmental Impact
Keywords
Life-Cycle Impact Assessment
US
Production
Life-Cycle Assessment
Cradle-to-Gate
Language
English
Research Status
Complete
Summary
The goal of the present study was to develop life-cycle impact assessment (LCIA) data associated with gate-to-gate laminated veneer lumber (LVL) production in the southeast (SE) region of the U.S. with the ultimate aim of constructing an updated cradle-to-gate mill output life-cycle assessment (LCA). The authors collected primary (survey) mill data from LVL production facilities per Consortium on Research for Renewable Industrial Materials (CORRIM) Research Guidelines. Comparative assertions were not a goal of the present study.
Online Access
Free
Resource Link
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Enabling Prefabricated Timber Building Systems in Commercial Construction

https://research.thinkwood.com/en/permalink/catalogue1927
Year of Publication
2017
Topic
Market and Adoption
Material
Glulam (Glue-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Bylund, David
Organization
Centre for Sustainable Architecture in Wood
Publisher
Forest & Wood Products Australia
Year of Publication
2017
Country of Publication
Australia
Format
Report
Material
Glulam (Glue-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Market and Adoption
Keywords
Prefabrication
Commercial
NCC
Mid-Rise
Language
English
Research Status
Complete
ISBN
978-1-925213-58-4
Summary
This project identifies drivers for, and barriers to, the increased use of prefabricated timber building (PTB) systems in Class 2 to 9 commercial buildings, such as apartments, hotels, office buildings and schools. PTB systems in Australia are in a formative stage and yet to achieve broad acceptance in the marketplace as a conventional method of building. Opportunities for PTB systems can use timber’s well-established benefits such as high strength-to-weight ratio; design and construction flexibility; general environmental credentials including carbon sequestration; and prefabrication’s suitability for use on brown-field, restricted access and difficult sites and developments. In addition legislative constraints have now been largely removed (e.g. through changes to the 2016 National Construction Code). An increase in large scale mid-rise prefabricated buildings, and with the increasing nationalisation and internationalisation of the top tier building companies, suggests market acceptance will grow as PTB buildings are seen as ‘normal’.
Online Access
Free
Resource Link
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Implications of NCC 2016 Changes to Deemed-To-Satisfy (DTS) for Mid-Rise Timber Buildings on Supply of Sawn Softwood Timber

https://research.thinkwood.com/en/permalink/catalogue1926
Year of Publication
2017
Topic
Market and Adoption
Design and Systems
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems

Seismic Design of Timber Steel Hybrid High-Rise Buildings

https://research.thinkwood.com/en/permalink/catalogue1270
Year of Publication
2017
Topic
Seismic
Connections
Application
Hybrid Building Systems
Author
Zhang, Xiaoyue
Organization
University of British Columbia
Year of Publication
2017
Country of Publication
Canada
Format
Thesis
Application
Hybrid Building Systems
Topic
Seismic
Connections
Keywords
Timber-Steel Hybrid
FFTT
Seismic Performance
Strength
Stiffness
Ductility
Failure Mechanisms
Force Reduction Factors
High-Rise
Language
English
Research Status
Complete
Summary
Timber-steel hybrid systems utilize timber as main construction material, but also take advantage of the ductility and stiffness that steel provides. For a novel hybrid system to gain recognition, experimental data must be supported by numerical analysis to predict its structural performance. “Finding the Forest Through the Trees” (FFTT) is one proposal for a timber-steel hybrid system using mass-timber panels as shear walls and floor slabs connected with steel header beams. This thesis presents research to evaluate the seismic performance of the FFTT hybrid system using experimental methods, numerical modeling, and reliability analysis. The FFTT system was investigated on two levels: i) component design, and ii) system design. On the component level, the strength, stiffness, ductility, and failure mechanisms of the two key connections were evaluated experimentally. CLT (Cross Laminated Timber) wall to steel beam connection tests results demonstrated that appropriate connection layouts can lead to the desired failure mechanism while avoiding crushing of the mass-timber panels. For the hold-down connection, a modified HSK (Holz-Stahl-Komposit) assembly with high force and stiffness capacity together with ductile behaviour was proposed. On the system level, the seismic response of the FFTT system with different ductility values was investigated using nonlinear 2D and 3D models subjected to a number of ground motion acceleration records. The seismic reliability with various uncertainties was analysed in order to investigate the FFTT system from a performance based approach. Based on the results, an appropriate seismic force reduction factor specific to the FFTT system was proposed. Finally, a feasibility study confirmed the possibility of the practical application of this system. This thesis can serve as a precursor for developing design guidelines for tall wood-hybrid building systems in seismic regions.
Online Access
Free
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Seismic Performance of Embedded Steel Beam Connection in Cross-Laminated Timber Panels for Tall-Wood Hybrid System

https://research.thinkwood.com/en/permalink/catalogue415
Year of Publication
2017
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Hybrid Building Systems
Author
Zhang, Xiaoyue
Azim, Riasat
Bhat, Pooja
Popovski, Marjan
Tannert, Thomas
Publisher
Canadian Science Publishing
Year of Publication
2017
Country of Publication
Canada
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Hybrid Building Systems
Topic
Seismic
Keywords
Timber-Steel Hybrid
Energy Dissipation
FFTT
Quasi-Static
Monotonic Test
Reverse Cyclic Test
Failure mechanism
Beam Profiles
Embedment
Language
English
Research Status
Complete
Series
Canadian Journal of Civil Engineering
Summary
Recent developments in novel engineered mass timber products and connection systems have created the possibility to design and construct tall timber-based buildings. This research presents the experiments conducted on the steel-wood connection as main energy dissipating part of a novel steel–timber hybrid system labelled Finding the Forest Through the Trees (FFTT). The performance was investigated using quasi-static monotonic and reversed cyclic tests. The influence of different steel beam profiles (wide flange I-sections and hollow rectangular sections), and the embedment approaches (partial and full embedment) was investigated. The test results demonstrated that appropriate connection layouts can lead to the desired failure mechanism while avoiding excessive crushing of the mass timber panels. The research can serve as a precursos for developing design guidelines for the FFTT systems as an option for tall wood-hybrid building systems in seismic regions.
Copyright
Courtesy of Canadian Science Publishing
Online Access
Free
Resource Link
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A Study Comparing the Global Warming Potential of Timber and Reinforced Concrete Construction in Office and Apartment Buildings

https://research.thinkwood.com/en/permalink/catalogue1928
Year of Publication
2017
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems

Use of Sustainable Wood Building Materials in Bosnia and Herzegovina, Slovenia and Sweden

https://research.thinkwood.com/en/permalink/catalogue836
Year of Publication
2017
Topic
Design and Systems
Environmental Impact
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Author
Obucina, Murco
Kuzman, Manja
Sandberg, Dick
Organization
University of Sarajevo
Year of Publication
2017
Country of Publication
Bosnia & Herzegovina
Format
Book/Guide
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Topic
Design and Systems
Environmental Impact
Keywords
Bosnia and Herzegovina
Building Materials
Construction
Prefabrication
Slovenia
Sustainable
Sweden
Language
English
Research Status
Complete
Summary
Bosnia and Herzegovina is the most forested country in the Balkan area, and Sweden and Slovenia are two of the most densely forested countries in the European Union. Living habits differ considerably between these three countries, but the use of wood is very similar. This book grew out of the collaboration of three wood scientists with totally different backgrounds who met and discussed their common interest – wood. Based on the different experiences in each country, the idea was to try to find ways to increase the common knowledge base for the use of wood, achieving excellence in timber design research and education; the architect with a deep knowledge of culture based needs, the engineer with experience and knowledge of technological needs, and the practitioner who always has to find the final solution.
Online Access
Free
Resource Link
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Using Low-Grade Hardwoods for CLT Production: A Yield Analysis

https://research.thinkwood.com/en/permalink/catalogue766
Year of Publication
2017
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Thomas, R. Edward
Buehlmann, Urs
Year of Publication
2017
Country of Publication
Finland
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
Hardwood
Low-Grade
Market
North America
Language
English
Conference
International Scientific Conference on Hardwood Processing
Research Status
Complete
Notes
September 25-28, 2017, Lahti, Finland
Summary
Low-grade hardwood logs are the by-product of logging operations and, more frequently today, urban tree removals. The market prices for these logs is low, as is the value recovered from their logs when producing traditional forest products such as pallet parts, railroad ties, landscaping mulch, or chips for pulp. However, the emergence of cross-laminated timber (CLT) for building construction in North America may provide an additional and possibly a more valuable product market for low-grade, low-value hardwood logs. Using the RaySaw sawing and ROMI rough mill simulators and a digital databank of laser-scanned low-grade yellow-poplar (Liriodendron tulipifera) logs, we examine the yield-recovery potential for lumber used in the production of CLT.
Online Access
Free
Resource Link
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12 records – page 1 of 2.