Advanced Wood Product Manufacturing Study for Cross-Laminated Timber Acceleration in Oregon & SW Washington, 2017
http://www.oregon4biz.com/PNMP/Catalytic-Project/O... [Markets] [Report] 2017
Oregon BEST
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Comparison of Environmental Performance of a Five-Storey Building Built with Cross-Laminated Timber and Concrete
http://sbsp.sites.olt.ubc.ca/files/2012/07/SBSP-re... [Environmental Performance] [Report] 2012
Yue (Jessie) Chen
Cross Laminated Timber (CLT), which is made by laminating dimension lumber at right angles, is an innovative high-performance building material that offers many positive attributes including renewability, high structural stability, storage of carbon during the building life, good fire resistance, possibility of material recycling and reuse. It is conceptually a sustainable and cost effective structural timber solution that can compete with concrete in non-residential and multi-family mid-rise bu...

Effect of Growth Ring Orientation on the Rolling Shear Properties of Wooden Cross Layer Under Two-Plate Shear Test
http://schd.ws/hosted_files/wcte2014/80/ABS261_Gon... [Mechanical Performance] [Conference Paper] 2014
Qinyi Zhou, Meng Gong, Ying Hei Chui
The design and application of cross laminated timber (CLT) is s trongly influenced by rolling shear properties of cross layers. Hence, predicting the mechanical behaviour of CLT requires accurate information about its rolling shear properties. In this study, black spruce wood laminates with three different growth ring orientations (flat sawn, in-between, quarter sawn) were edge glued to produce wooden cross layer (WCL). Two-plate shear tests were carried out on WCL to investigate the influence o...

Fire Performance of Mass-Timber Encapsulation Methods and the Effect of Encapsulation on Char Rate of Cross-Laminated Timber
https://www.fpl.fs.fed.us/documnts/pdf2016/fpl_201... [Fire Performance] [Conference Paper] 2016
Laura Hasburgh, Keith Bourne, Christian Dagenais, Lindsay Ranger, Audrey Roy-Poirier
Twenty-three (23) cross-laminated timber (CLT) panels were exposed to a standard fire at an intermediate scale. This paper discusses several encapsulation methods used to increase the fire resistance of those panels, with emphasis on encapsulation times and the impact of encapsulation on the charring rate of CLTs. The encapsulation methods used included Type X gypsum board, intumescent coating, rock fibre insulation and spray applied fire-resistant materials (SFRM). The results suggest that enca...

Development of a Ready-To-Assemble (RTA) Tornado Safe Room Constructed from Cross-Laminated Timber
https://www.fpl.fs.fed.us/documnts/rips/fplrip-471... [Alternative/Hybrid Configurations] [Report] 2016
Todd Black, Bob Falk
The growth of the cross-laminated timber (CLT) panel market has made available manufactured wood panels that are ideal for tornado safe rooms and shelters. The thick cross-section of the laminated panels are well suited to resist wind and impact loads produced by tornados...

Development of Seismic Performance Factors for Cross Laminated Timber: Phase 2
https://www.fpl.fs.fed.us/documnts/rips/fplrip-471... [Seismic Performance] [Report] 2012
John van de Lindt, Douglas Rammer, Shiling Pei
Cross laminated timber (CLT) is a wood technology for structural applications that was developed in Europe over 15 years ago and is beginning to make its way into the North American market as a green building alternative. CLT is a multilayer wooden panel made of lumber. Each layer of boards is placed cross-wise to the adjacent layers and connected with either mechanical fasteners or adhesives for increased rigidity and stability. CLT use in both low and midrise commercial construction (Figure 1)...

An Approach to CLT Diaphragm Modeling for Seismic Design with Application to a U.S. High Rise Project
http://www.woodworks.org/wp-content/uploads/Approa... [Seismic Performance] [Conference Paper] 2016
Scott Breneman, Eric McDonnell, Reid Zimmerman
...

Framework - A Tall Re-Centering Mass Timber Building in the United States
http://db.nzsee.org.nz/2017/O5C.3_Zimmerman_&_McDo... [Seismic Performance] [Conference Paper] 2017
Reid Zimmerman, Eric McDonnell
Framework is a 12-story, 140ft (43m) tall mixed use building to be constructed almost entirely out of mass timber, including both the gravity and lateral forceresisting systems, in a region of high seismicity in the United States (Portland, Oregon). Utilizing performance-based seismic design and nonlinear response history analysis, the structure’s rocking/re-centering cross laminated timber walls were designed for enhanced, beyond-code-level seismic objectives. These enhanced objectives were tar...

Development and evaluation of CLT shear wall using drift pinned joint
https://www.researchgate.net/publication/289921525... [Connectors] [Journal Article] 2014
Shoichi Nakashima, Akihisa Kitamori, Kohei Komatsu, Zeli Que, Hiroshi Isoda
The connectors for the CLT shear wall with drift pin joint were suggested. The wall composed of five layers Japanese cedar CLT, steel connectors and drift pins (diameter d = 16mm). The horizontal shear performances of the walls were evaluated by static experiment and 2D frame analysis. The experimental parameter was number and position of drift pins. Characteristic failure was shear failure on the border of the laminae. There were good agreement on initial stiffness, yield load and second stiffn...

Fire behaviour of cross-laminated solid timber panels
https://www.researchgate.net/publication/250275695... [Fire Performance] [Journal Article] 2009
Andrea Frangi, M. Fontana, M. Knobloch, Giovanna Bochicchio
Cross-laminated solid timber panels represent an interesting technical and economical product for modern timber structures. The use of large prefabricated cross-laminated solid timber panels for load-bearing wall and floor assemblies has become increasingly popular in particular for residential timber buildings. The fire behaviour of cross-laminated solid timber panels has been experimentally and numerically studied during two different ongoing research projects carried out at the Institute of S...

Summary of the fire protection foundation report - fire safety challenges of tall wood buildings
http://www.firesciencereviews.com/content/4/1/5... [Fire Performance] [Journal Article] 2015
David Barber, Robert Gerard
Buildings constructed from engineered timber are becoming more prevalent globally as building designers, owners and architects realize the sustainability opportunities with timber construction and the overall aesthetic of a completed timber building. As timber buildings are planned to be taller than many model codes permit, the National Fire Protection Association (NFPA) Fire Protection Foundation commissioned research entitled “Fire Safety Challenges of Tall Wood Buildings”, with the aim of und...

Numerical study on the elastic buckling of cross-laminated timber walls subject to compression
https://www.researchgate.net/publication/329566877... [Mechanical Performance] [Journal Article] 2018
Juan Carlos Pina, Erick I. Saavedra Flores, Karin Saavedra
The recent trend towards the use of Cross-Laminated Timber (CLT) as a novel construction material in mid- and high-rise buildings has steered the research efforts into this subject over the last few years. Despite the considerable progress made on the structural response of CLT, there are still several unresolved issues related to the analysis and design of CLT. This is of great interest for engineers and designers working on the mass timber construction sector. In particular, the buckling behav...

Barriers to the design and use of cross-laminated timber structures in high-rise multi-family housing in the United States
https://www.researchgate.net/publication/299947881... [Markets] [Book/Book Section] 2013
J Schmidt, Corey Griffin
Wood structures not only have a significantly lower embodied energy and associ- ated carbon emissions than equivalent steel and concrete structural systems, wood is a carbon sink, removing carbon dioxide from the atmosphere and storing it in building components. The reduction of carbon dioxide is critical to addressing related energy and climate issues. Unfortu- nately, the structural properties and life-safety concerns have limited the use of wood to the structural sys...

Chapter 4 - Lateral design of cross-laminated timber buildings
https://www.fpl.fs.fed.us/documnts/pdf2013/fpl_201... [Seismic Performance] [Book/Book Section] 2013
John W Van De-Lindt, Douglas Rammer, Marjan Popovski, Phil Line, Shiling Pei, Steven E Pryor
Cross-laminated timber (CLT) is an innovative wood product that was developed approximately two decades ago in Europe and has since been gaining in popularity. Based on the experience of European researchers and designers, it is believed that CLT can provide the U.S. market the opportunity to build mid- and high-rise wood buildings. This Chapter presents a summary of past research and state-of-the-art understanding of the seismic behavior of CLT. As a new structural system to the United States, ...

Six U.S. manufacturers pioneering laminated wood - Archpaper.com
https://archpaper.com/2019/01/laminated-wood-specs... [Markets] [Magazine/Newspaper Article] 2019
Gabrielle Golenda
CLT, GLT, NLT, DLT, and all the other LTs: You’ll find our favorite laminated timbers made by U.S.-based manufacturers and suppliers below. You’re welcome!...

Is the Cross-laminated timber (CLT) market an option for the hardwood industry?
https://sim.sbio.vt.edu/?m=201902... [Raw Materials] [Others] 2019
Henry Quesada
Cross laminated timber (CLT) has been in the market since 2000 when it was launched in Austria by a company called KHL. A CLT panel is composed of 3, 5, or 7 layers of lumber. Each layer is glued perpendicularly to each other. Today almost 100% of the CLT panels being produced are made from softwood species and it is estimated that the current CLT production in Europe is around 1 million cubic meters....

Numerical Investigation of the Fire Resistance of Protected Cross-Laminated Timber Floor Panels
https://www.researchgate.net/publication/262944518... [Fire Performance] [Journal Article] 2012
Agnese Menis, Massimo Fragiacomo, Isaia Clemente
Several experimental investigations have been performed on timber elements to determine their fire resistance. However, the numerical modelling is nowadays an effective and inexpensive alternative method to investigate the behaviour of timber structures during fire. Once validated on experimental data, finite element models can be used to understand more in detail the experimental behaviour and then used to carry out parametric studies in which geometrical, mechanical and thermal properties are ...

Acoustic and Thermal Properties of Wood | Building With Wood
https://www.thinkwood.com/performance/acoustics-an... [General Information] [Web Page] 2019
Think Wood
Wood has inherent acoustical and thermal properties that augment its structural capabilities. As a result, wood use in a project can help maintain the desired indoor environmental quality where noise and thermal comfort are valued....

Continuing Education Unit: Wood And Water In Natural Balance Are Compatible | Think Wood
https://www.thinkwood.com/news/wood-water-natural-... [Moisture/Durability] [Others] 2017
Think Wood
Research Library News & Events About Opportunities for Wood Marketplace Design Trends Project Efficiencies Economic Growth Building Better Health & Well-Being High Performance Taller Buildings Sustainability Products and Systems Light-Frame Construction Nail-Laminated Timber (NLT) NLT Design + Construction Guide Download Cross-Laminated Timber (CLT) CLT Handbook Download Dowel-Laminated Timber (DLT) Glue-Laminated Timber (Glulam) Design Tools Performance Fire Safety and Protection Durability Se...

Nordic - Product Reports - APA – The Engineered Wood Association
https://www.apawood.org/product-reports?q=PR-L294C... [Standards/Building code] [Standard] 2018
APA
APA – The Engineered Wood Association Skip over navigation The leading resource for information about engineered wood products Technical Research Manufacturer Directory Contact Products Plywood Oriented Strand Board (OSB) Specialty Panels Concrete Form Panels Overlaid (HDO/MDO) Siding Radiant Barrier Panels Industrial End-Use Glulam I-Joist Rim Board Cross-Laminated Timber (CLT) Structural Composite Lumber (SCL) Laminated Veneer Lumber (LVL) Parallel Strand Lumber (PSL) Laminated Strand Lumber ...