Thermal property and flame retardancy comparisons based on particle size and size distribution of clays in ethylene vinyl acetate (EVA) adhesive sheets for cross-laminated timber (CLT)
https://link.springer.com/article/10.1007/s00107-0... [Bonding/Adhesives] [Journal Article] 2019
Jung-Hun Lee, Ji-Won Park, Hoon Kim, Seong-Wook Jang, Hyun-Joong Kim, Yoon Choi
Cross-laminated timber (CLT) is widely used as a building material, and recent interest in this material has increased rapidly due to environmental problems. For instance, the phenol resorcinol formaldehyde (PRF) used as an adhesive in CLT can release toxic gases during a fire, resulting in adverse health effects. These properties cause concern regarding the use of CLT as a building material and restrict its use. In this study, the effects of the particle size and size distribution of clays on t...

Compression Strength Perpendicular to Grain In Cross-Laminated Timber (CLT)
https://pdfs.semanticscholar.org/6037/ff46c98e6a28... [Mechanical Performance] [Conference Paper] 2010
Erik Serrano, Bertil Enquist
The work presented involved testing of the compression strength of square specimens made from three-layer CLT. In one of the test setups a uniform compression over the complete square face of the specimen was used-similar to what is defined in the current European test standard for glued-laminated timber. In addition, several other test setups involving loading of only parts of the specimens square surface by line loads was investigated. The use of line loads aimed at investigating the effect of...

APA Designers Circle Newsletter - APA – The Engineered Wood Association
https://www.apawood.org/designerscircle... [Markets] [Magazine/Newspaper Article] 2019
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 ...

Cross-Laminated Timber (CLT) & Mass Timber Connector Products
https://www.strongtie.com/solutions/clt... [Commercial/Company Information] [Web Page] 2019
Simpson Strong-Tie Company Inc.
At Simpson Strong-Tie, weve built a heritage of wood connection innovation. Throughour tireless commitment to technological advancement, research and rigorous testing,our engineers have acquired an unparalleled body of expertise, with more patents andcode-listed products than anyone else in the business. Your email will be used to send you updates on the latest from Simpson Strong-Tie. ®Stay ConnectedCross Laminated Timber ConstructionLiteratureCross-Laminated Timber (CLT) & Mass Timber Connecto...

Ductility Based Force Reduction Factors for Symmetrical Cross-Laminated Timber Structures
https://www.researchgate.net/publication/274959160... [Seismic Performance] [Journal Article] 2015
Marjan Popovski, Shiling Pei, John W. van de Lindt, Erol Karacabeyli
Cross-laminated timber (CLT) as a structural system has not been fully introduced in European or North American building codes. One of the most important issues for designers of CLT structures in earthquake prone regions when equivalent static design procedure is used, are the values for the force modification factors (R-factors) for this structural system. Consequently, the objective of this study was to derive suitable ductility-based force modification factors (Rd-factors) for seismic design ...

Wood Building Systems - The Canadian Wood Council
http://cwc.ca/how-to-build-with-wood/building-syst... [Markets] [Web Page] 2020
Canadian Wood Council
Wood, an abundant and renewable natural resource, is diverse in its application in building systems. Be it residential or non-residential, light-frame or heavy timber, low-rise, mid-rise, or tall, wood can be used in various building applications. The wood industry’s ambition is getting higher, and so are our buildings. When it comes to wood construction, people no longer merely think of basic applications. Instead, they look at the future possibilities of wood construction; where advances in wo...

From Stumptown to Timber City: Portland Could Be Home to Tallest Wood Skyscraper
https://www.thinkwood.com/news/from-stumptown-to-t... [Markets] [Web Page] 2019
Think Wood
“The City of Roses is growing into a city of tall timber towers. With the completion of Carbon 12—an 85-foot tall, eight-story, timber-framed residential project in North Portland—and the news that the world’s tallest mass timber skyscraper at 300 feet may be built adjacent to North Park Blocks, Portland is outgrowing its “Stumptown” nickname....

Techno-economic analysis for manufacturing cross-laminated timber
https://bioresources.cnr.ncsu.edu/resources/techno... [Other] [Journal Article] 2019
Kristin Brandt, Alex Wilson, Donald Bender, James D. Dolan, Michael P. Wolcott
Cross-laminated timber (CLT) is a bio-based building material that enables rapid construction and buildings with low embodied energy. Despite its comparative maturity in European markets, relatively little information regarding process design and economics for the manufacture of cross-laminated timber is available in the literature. Two techno-economic analyses were conducted to quantify the mill-gate cost of cross-laminated timber. The cross-laminated timber manufacturing process was described,...

An evaluation of strength performance of the edge connections between cross-laminated timber panels reinforced with glass fiber-reinforced plastic
https://bioresources.cnr.ncsu.edu/resources/an-eva... [Connectors] [Journal Article] 2019
Yo-Jin Song, In-Hwan Lee, and Soon-Il Hong
The strength performance of edge connections between the cross-laminated timber (CLT) panels, as currently applied to CLT construction, was compared to that of connections reinforced with glass fiber-reinforced plastic (GFRP) by means of a tensile-type shearing test. In this study, the reinforced half-lapped connection is intended to prevent CLT from coming apart due to failure of self-tapping screws (STS) by bonding GFRP sheets to connections between CLT panels. The end-distance and edge-distan...

Evaluation of Tensile Performance of Drift Pin Joint of Cross Laminated Timber with Steel Inserted Plate
http://support.sbcindustry.com/Archive/2012/july/P... [Connectors] [Conference Paper] 2012
Shoichi Nakashimal, Akihisa Kitamori, Takuro Mori, Kohei Komatsu
ABSTRACT: Cross laminated timber (CLT) is a structural plate element which is approved in Europe and is intended to be approved in Japan. Authors experimentally studied on the tensile performance of the single drift pin joint with steel inserted plate for CLT. Specimens were composed from five Japanese cedar laminae. The experimental parameters were diameters of drift pin (12 and 16 mm), edge distances (3d, 4d and 7d), end distances (3d, 4d and 7d). Higher second stiffness, d...

Seattle-based atelierjones creates one of the first all-CLT residences in the United States
https://archpaper.com/2018/05/atelierjones-crafts-... [Case Study/Projects] [Magazine/Newspaper Article] 2018
Antonio Pacheco
Sixty-three trees, 67 cross-laminated timber (CLT) panels, and 12 days—that’s what it took for Seattle-based atelierjones to erect the firm’s 1,500-square-foot CLTHouse, one of the first all-CLT residences constructed in the United States....

Experimental Study of Combustible and Non-combustible Construction in a Natural
https://dx.doi.org/10.1007/s10694-014-0407-4... [Fire Performance] [Journal Article] 2015
Xiao Li, Xia Zhang, George Hadjisophocleous, Cameron McGregor
With the adoption of performance-based fire design and the development of new engineered wood products, wood-based mid-rise and high-rise buildings are beginning to be constructed all around the globe. This trend has accelerated efforts to gain more understanding of the risks associated with combustible construction. To compare the differences between combustible and non-combustible construction, a series of full scale fire tests was conducted at Carleton University, the results of which are pre...

Performance of cross-laminated timber shear walls for platform construction under lateral loading
https://pdfs.semanticscholar.org/aafc/27662342b01f... [Seismic Performance] [Thesis/Dissertation] 2013
Md Shahnewaz
Cross-laminated timber (CLT) is gaining popularity in residential and non-residential applications in the North American construction market. CLT is very effective in resisting lateral forces resulting from wind and seismic loads. This research investigated the in-plane performance of CLT shear wall for platform-type buildings under lateral loading. Analytical models were proposed to estimate the in-plane stiffness of CLT wall panels with openings based on experimental and numerical investigatio...

In-Plane Strength and Stiffness of Cross-Laminated Timber Shear Walls
https://pdfs.semanticscholar.org/40c3/4708b5a744e7... [Mechanical Performance] [Journal Article] 2018
Md Shahnewaz, Shahria Alam, Thomas Tannert
The research presented herein investigated the in-plane performance of cross-laminated timber (CLT) shear walls for platform-type buildings under lateral loading. Finite element models of CLT connections (i.e., brackets, hold-downs and self-tapping screws) were developed in OpenSees and calibrated against experimental tests to represent the connections hysteresis behaviour under cyclic tension and shear loading. The results were incorporated into models of CLT single and coupled shear walls. The...

Services — XLam
https://www.xlam.co.nz/xlam-services.html... [Commercial/Company Information] [Web Page] 2019
XLam
MENU Home Why XLam Our Story Vision Living With Wood Social Benefits Environmental Benefits Economic Benefits Services Design Manufacture Off-site Solutions Installation Cost Planning Permit Applications Team Collaboration Terms and Conditions Solutions Markets Custom Build Student Residential Multi-unit Residential Commercial Offices Education Vertical Extensions What is Cross Laminated Timber? Product XLam CLT Our CLT Off-site Prefabrication Project Enquiry Form Technical Design Legal Specific...

Common Ground High School | Think Wood
https://www.thinkwood.com/our-projects/common-grou... [Case Study/Projects] [Web Page] 2019
Think Wood
The 180 students of Common Ground High School do more than study urban farming and sustainability. They live it each day in a building that’s now a national model of what is possible in green school construction....

Ductility Based Force Reduction Factors for Symmetrical Cross-Laminated Timber Structures
https://www.researchgate.net/publication/274959160... [Seismic Performance] [Conference Paper] 2015
Marjan Popovski, Shiling Pei, John W. van de Lindt, Erol Karacabeyli
European or North American building codes. One of the most important issues for designers of CLT structures in earthquake prone regions when equivalent static design procedure is used, are the values for the force modification factors (R-factors) for this structural system. Consequently, the objective of this study was to derive suitable ductility-based force modification factors (Rd-factors) for seismic design of CLT buildings for the National Building Code of Canada (NBCC). For that purpose, t...

(PDF) Measuring-up in timber: A critical perspective on mid- and high-rise timbe
https://www.researchgate.net/publication/281127405... [Markets] [Journal Article] 2014
Patrick Fleming, Simon Smith and Michael Ramage
Architects, engineers and researchers alike often cite practical reasons for building with wood. Since the development of curved glulam beams and columns over a century ago, the widespread use of massive structural timber elements has allowed architects and engineers to design and build in wood with unprecedented speed and scale. Moreover, rising concerns of climate change and the carbon-dioxide emissions associated with construction encourage the use of wood as a viable alternative to steel and...

Seismic protection technologies for timber structures: a review
https://link.springer.com/article/10.1007%2Fs00107... [Seismic Performance] [Journal Article] 2019
David Ugalde, José Luis Almazán, Hernán Santa María, Pablo Guindos
Although many distinct devices and techniques are intended to this end, SPTs applied to timber structures may be grouped into supplemental damping, seismic isolation, and rocking systems. An outlook for future research trends is expected towards cost-effectiveness, rate-effects, engagement of devices, and design guidelines which may expand these technologies bringing timber structures into higher levels of seismic performance. Besides single-family housing, current developments in construction ...

Experimental Investigation of the Bending Behaviour of Timber-to-Timber Composite-Section Beams
https://www.researchgate.net/publication/330347570... [Mechanical Performance] [Conference Paper] 2014
Osama Sam Salem
Wood has long been in demand as a competent building material due to its beauty, economy, and ease of construction. Excellent material properties are exhibited by a number of new engineered-wood products, such as glued-laminated (Glulam) and cross-laminated timbers (CLT). New experimental data on the structural behavior of CLT-to-Glulam composite-section beams is presented in this paper. Four full-scale simply-supported beams, each composed of two different engin...