A component approach for the hysteric behaviour of connections in cross-laminated wood structures
http://onlinelibrary.wiley.com/doi/10.1002/eqe.231... [Seismic Performance] [Journal Article] 2013
Giovanni Rinaldin, Claudio Amadio, Massimo Fragiacomo
In this paper, a numerical model to estimate the dissipative capacity and describe the cyclic response of cross-laminated (X-lam) timber buildings is presented. The connections between panels and to the foundation (metal hold-downs and angle brackets, and screwed connectors) are modelled with nonlinear hysteretic multispring elements taking into account the strength interaction between different degrees of freedom according to a predefined domain. The timber components (solid X-lam floors and wa...

Cross Laminated Timber Technology: Manufacturing, Materials and Specification
http://www.woodworks.org/wp-content/uploads/2014-S... [General Information] [Presentation] 2014
Bryan Radling
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A Composite System Using Ultra High-Performance Fibre-Reinforced Concrete and Cross-Laminated Timber
https://tspace.library.utoronto.ca/bitstream/1807/... [Design/Architectural aspects] [Thesis/Dissertation] 2016
Mengyuan Chen
The application of cross-laminated timber (CLT) as floor panels is limited by excessive deflection and vibration. A composite system combining CLT and ultra high-performance fibre-reinforced concrete (UHPFRC) was developed to extend span limits. Push-off tests were conducted on different connectors, and a glued-in rod connector was chosen and further refined for the proposed system. Static bending tests and free vibration tests were conducted on bare CLT panels and two composite specimens. By co...

Components and Consequences of Cross-Laminated Timber Delamination
https://link.springer.com/content/pdf/10.1007%2F97... [Moisture/Durability] [Book/Book Section] 2016
Richard Emberley, Arne Inghelbrect, Nicholas Doyle, Jose L. Torero
Mass timber products such as cross-laminated timber are increasingly being used in tall timber building designs. The high-density wood used in mass timber products has a natural self-extinguishment capacity which chars only under exposure from an external heat flux. This makes timber a suitable building material giving timber buildings the potential to withstand full fire burnout of the building furnishings. However, ply delamination poses a significant challenge as the loss of the char layer ex...

Cross laminated timber properties including effects of non-glued edges and additional cracks
https://link.springer.com/content/pdf/10.1007%2Fs0... [Mechanical Performance] [Journal Article] 2017
John Narin
Cross laminated timber (CLT) is usually comprised of multiple timber layers having alternating grain directions. Because individual boards are glued on their faces between layers, but usually not glued on their edges within layers, those edges define “precracks” in the composite. When exposed to differential thermal and moisture expansion after installation, CLT, like all cross-laminated composites, is prone to formation of “additional cracks”. Confidant CLT design must be able to account for ch...

Cross laminated timber (CLT): overview and development
https://link.springer.com/content/pdf/10.1007%2Fs0... [General Information] [Journal Article] 2016
R. Brandner, G. Flatscher, A. Ringhofer, G. Schickhofer, A. Thiel
Cross laminated timber (CLT) has become a well-known engineered timber product of global interest. The orthogonal, laminar structure allows its application as a full-size wall and floor element as well as a linear timber member, able to bear loads in- and out-of-plane. This article provides a state-of-the-art report on some selected topics related to CLT, in particular production and technology, characteristic material properties, design and connections. Making use of general information concern...

Cross-Laminated Timber in British Columbia
http://ahc1893.com/wp-content/uploads/2012/04/Alfr... [General Information] [Presentation] 2011
Robert Malczyk
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Cross Laminated Timber: Bridging the Designer-Manufacturer Gap
http://www.woodworks.org/wp-content/uploads/17SE01... [Markets] [Presentation] 2015
Allison Standiford
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Cross Laminated Timber: Options for Improving the Long Term Production Line of CLT in New Zealand
https://ir.canterbury.ac.nz/bitstream/handle/10092... [Case Study/Projects] [Report] 2013
Samuel Leslie
XLam New Zealand Limited is the first company in New Zealand to manufacture Cross Laminated Timber (CLT); structural timber panels used for roof, floor and wall diaphragms in commercial and residential buildings. Commissioning of the factory began in April 2012, but it is not yet fully complete. The panels are currently being produced discretely rather than in a production line, and some plant is yet to be installed....

Cross laminated timber: “The greatest thing since sliced wood”
https://www.thedailyworld.com/news/cross-laminated... [General Information] [Magazine/Newspaper Article] 2017
Dan Hammock
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CLT – European Experience, Idea and Development, Technology and Applications Part 1
http://clta.jp/wp-content/uploads/2013/10/20131024... [Markets] [Presentation] 2013
Gerhard Schickhofer
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CLT – European Experience, Properties and Design, Research and Testing
http://clta.jp/wp-content/uploads/2013/10/20131024... [Markets] [Presentation] 2013
Gerhard Schickhofer
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CLT Applications
http://clta.jp/wp-content/uploads/2013/10/20131024... [Markets] [Presentation] 2013
Gerhard Schickhofer
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The Case for Tall Wood Buildings
http://www.woodworks.org/wp-content/uploads/CWC-Ta... [Tall Buildings] [Report] 2012
Michael C. Green, J. Eric Karsh
The report describes a new structural system in wood that represents the first significant challenge to concrete and steel structures since their inception in tall building design more than a century ago. The introduction of these ideas is driven by the need to find safe, carbon-neutral and sustainable alternatives to the incumbent structural materials of the urban world. The potential market for these ideas is quite simply enormous. The proposed solutions have the potential to revolutionize the...

Charring rates of heavy timber structures for Fire Safety Design
https://brage.bibsys.no/xmlui/bitstream/handle/112... [Fire Performance] [Thesis/Dissertation] 2010
Kathinka Leikanger Friquin
This thesis presents research on the charring rate of large structural members of timber and the material properties and external factors that influence on the charring of these members. The most commonly used temperature-time curves for large structures, and calculation models for the charring rate of wood, are evaluated and used to establish the documented charring rates. ...

Brock Commons Phase 1
http://www.actonostry.ca/2016/08/16/brock-commons-... [Tall Buildings] [Web Page] 2016
Acton Ostry Architects
Acton Ostry Architects is a leading Canadian design practice recognized for the creation of eloquent and innovative community, public institutional, and mixed-use residential buildings. Since our inception in 1992, we have continually demonstrated our commitment to the making of architecture that responds sensitively to social, historical and environmental concerns. Our design approach incorporates new technologies and materials that contribute to the realization of buildings rooted in a conside...

CLT Chile
http://www.conmaderausach.cl... [Case Study/Projects] [Web Page] 2016
Universidad de Santiago
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Natural Full-Scale Fire Test on a 3 Storey XLam Timber Building
http://support.sbcindustry.com/archive/2008/june/p... [Fire Performance] [Conference Paper] 2008
Andrea Frangi, Giovanna Bochicchio, Ario Ceccotti, Marco Pio Lauriola
An extensive research project, called SOFIE and sponsored by the Italian Province of Trento, on the structural behaviour of timber buildings made of prefabricated cross-laminated solid timber panels is currently carried out at CNR-IVALSA in Italy. The research project aims at supplying documentation and information on the use of XLam timber panels as structural elements, in order to increase its use in particular for residential multi-storey buildings. Following the shaking table test of a full-...

Mechanical Properties of Beech CLT
https://www.bfh.ch/fileadmin/data/publikationen/20... [Raw Materials] [Conference Paper] 2016
Steffen Franke
The use of relatively new constructions products like Cross laminated timber (CLT) is increasing significantly. It is planned to extend the production of CLT by producing them out of beech or of beech and spruce in combination as hybrid product. The objective is to provide high performing materials which compensate weak points in soft wood products. In order to use and implement the product, the mechanical behaviour of a CLT plate of beech were investigated. The potential of beech is shown in te...

Cross-laminated timber vs. concrete/steel: cost comparison using a case study
https://experts.umn.edu/en/publications/cross-lami... [Economics/Costs] [Conference Paper] 2016
Maria Fernanda Laguarda-Mallo, Omar Espinoza
Cross-Laminated Timber (CLT) is an innovative structural system based on the use of large-format, multilayered panels made from solid wood boards glued together, and layers at 90 degrees. This cross-laminated configuration translates into panels that are monolithic, stable, and experience minor shrinkage, which allows them to be used for the most diverse building applications, such as walls, floors and roofs. Developed in the early 1990 in Switzerland, as a way to reduce waste in sawmills, the s...