Barriers in the implementation of Cross-Laminated Timber as a Sustainable Alternative Structural System in Multi-Family Multi-Story Housing
http://web.pdx.edu/~cgriffin/research/poster/timbe... [General Information] [Presentation]

Cross-Laminated Timber (CLT) was first developed in the early 1990s in Austria and Germany and has been gaining popularity in residential and non-residential applications, mainly in Europe. Currently, panels are being manufactured in a limited number of places in North America, which allows CLT to be used in a few projects while trade organizations and governmental agencies adopt specifications and codes for its use. CLT is being used in Europe as the structural system for eight and nine story ...

Cross Laminated Timber (CLT)
http://www.trentglobal.edu.sg/wp-content/uploads/2... [Markets] [Conference Paper]

To provide an awareness of the use of cross laminated timber (CLT) in multistorey construction. To develop an awareness of how CLT panels are fixed and produce appropriate details. To understand the performance of CLT panels in relation to fire, sound, thermal insulation, structural stability and durability. To understand the processes involved in the erection of CLT buildings with regard to health and safety. To consider the issues of CLT with regard to current research in the subject. ...

Viability of cross-laminated timber from UK resources
http://www.icevirtuallibrary.com/doi/full/10.1680/... [Markets] [Conference Paper] 2015
David Crawford, Robert Hairstans, Simon Smith, Panayiotis Papastavrou
Cross-laminated timber is an innovative engineered timber product that can be used for almost all superstructure elements. It is typically produced from kiln-dried, fast-growing softwood timber. Currently there is no commercial production in the UK and hence the majority of cross-laminated timber used within the UK construction industry is manufactured in central mainland Europe and imported. This paper presents the key factors required for implementing a cross-laminated timber production and co...

Innovation in Irish Timber Usage
http://www.irishtimber.org/uploads/1/9/2/0/1920947... [Markets] [Magazine/Newspaper Article]
Annette Harte, Daniel McPolin, Karol Sikora, Caoimhe O’Neill, Conan O’Ceallaigh
Due to the increasing focus on the use of sustainable construction materials to meet environmental targets, related to efficient energy use and emissions, a significant opportunity exists for the Irish wood products sector. In order to increase the utilisation of Irish timber in construction, the mechanical and physical properties of the material must be established. The study intends to collate all of the available historical data of the properties of Irish Sitka spruce [1-4]. Moreover, testin...

PULL-OUT STRENGTH PROPERTIES OF LAGSCREWBOLT CONNECTION IN CROSS LAMINATED TIMBER
https://schd.ws/hosted_files/wcte2014/5f/ABS530_Mo... [Mechanical Performance] [Conference Paper] 2014
Takuro Mori, Makoto Nakatani, Ying Hei Chui, Meng Gong, Hiroshi Isoda, Kohei Komatsu
Moment-resisting joint using lagscrewbolts (LSBs) shows good mechanical performance and aesthetics. Cross laminated timber (CLT) is used as a material for a large structures. In order to design and construct CLT structures using LSBs, it is important to quantify the pull-out strength of LSBs in CLT. The goal of this study was to evaluate the influence of the loading direction relative to the grain direction of laminate layer and the edge distance on the pull-out strength and stiffness properties...

STRUCTURAL REDUNDANCY IN CROSS-LAMINATED TIMBER BUILDINGS
http://www.proholz.at/fileadmin/proholz/media/docu... [Connectors] [Conference Paper] 2016
Ildiko Lukacs, Anders Björnfot, Themistoklis Tsalkatidis, Roberto Tomasi
In high timber structures, cross-laminated timber panels are common structural elements. The wall and floor panels are typically connected with steel plates, angle brackets, hold-downs, and screws. Based on analytical research, it seems that panel-to-panel connections give additional stiffness due to structural redundancies resulting from transversal wall and floor elements. The purpose of this paper is to investigate the effect of structural redundancy of common CLT wall-to-floor panel configur...

New Research Supports Innovative Hybrid Mass Timber Buildings
http://www.softwoodlumberboard.org/wp-content/uplo... [Tall Buildings] [Report] 2017
Softwood Lumber Board (SLB)
Testing by SOM and University of Oregon highlights the performance of wood/concrete composite floor systems. The floor system provided greater stiffness than required by code and supported an ultimate load of 82,000 pounds-approximately eight times the required design load....

Cross-Laminated Timber Symposium
http://www.oboa.on.ca/news/files/clt2011.pdf... [Case Study/Projects] [Web Page] 2011

Among the new products recently introduced in the wood construction sector is the cross-laminated timber (CLT) panel, also commonly known as a solid wood panel. It is without doubt currently one of the most discussed wood products in Canada....

Mass Timber Is Shaking Things Up | Tallwood Design Institute
http://tallwoodinstitute.org/news/mass-timber-shak... [Markets] [Others]

Researchers affiliated with the TallWood Design Institute tested a resilient, full-scale mass timber building constructed with cross-laminated timber (CLT) at the Natural Hazards Engineering Research Infrastructure outdoor shake table facility at UC San Diego in July 2017, collaborating with researchers of the NHERI TallWood Project. The project, which tested performance of the structure through a series of simulated earthquakes, is the latest round of testing to develop and validate a seismic ...

Comparison of newly proposed test methods to evaluate the bonding quality of Cro
https://advanceseng.com/civil-engineering/evaluate... [Bonding/Adhesives] [Others]
Michele Betti, Michele Brunetti, Marco Pio Lauriola, Michela Nocetti, Francesco Ravalli, Benedetto Pizzo
From the results obtained in the shear tests, the authors observed that all the methods used were effective in assessing the bonding integrity among the layers of the selected panels. However, considerations on the easiness and practicability of specimen preparation and test execution, as well as on the theoretical distribution of internal shear stress, were provided in order to discuss and to elect the most suitable approach for inclusion in the technical standards. Delamination results and she...

Timber Buildings with Enhanced Energy and Seismic performance for Mediterranean region: the research project TIMBEEST
http://www.plea2014.in/wp-content/uploads/2014/12/... [Seismic Performance] [Magazine/Newspaper Article] 2014
Julia Ratajczak, Cristina Benedetti, Andrea Arch, Eng Polastri, Guillaume Herve Poh, Andrea Gasparella, Marco Baratieri, Eng, Irene Paradisi
How can the summer behaviour of timber buildings be improved without worsening its seismic performance? The research developed by Fraunhofer Italia, Free University of Bozen-Bolzano and supported by Trees and Timber Institute CNR-IVALSA, focuses on passive features of the building envelope. Combining the classifications of the Italian territory based on climate (equivalent Cooling Degrees Days) and structural indicators (horizontal elastic response spectrum), possible improving strategies with t...

Cross Laminated Timber (CLT) Analysis | Sustainable Building Science Program (Ar
http://sbsp.sites.olt.ubc.ca/2012/07/19/cross-lami... [Mechanical Performance] [Magazine/Newspaper Article] 2012
Yue 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. Therefore, there is a need to understand and quantify the environmental attribute of this building system in the context of North American resources, manufa...

Log and Timber Connections: First Cross Laminated Timber (CLT) Structure in the
https://loghomescrews.blogspot.com/2010/09/first-c... [Mechanical Performance] [Report] 2010
Steve Cochran
FOR IMMEDIATE RELEASEContact: Crawford Murphy, MDS10 Architects – ccmarch@skyrunner.net; Steve Cochran, National Center for Sustainability – First Cross Laminated Timber (CLT) Structure in the United Statesto be Built in Gastonia, North CarolinaWidely used in Europe, CLT offers significant environmental, performance and cost benefitsWashington, DC (Sept. 24, 2010) – As a result of a strategic alliance between the National Center for Sustainability and MDS10 Architects of Asheville, North Carol...

Identification of Research Areas to Advance the Adoption of Cross-Laminated Timber in North America
http://biobus.swst.org/index.php/bpbj/article/view... [Markets] [Journal Article] 2016
Omar Espinoza, Urs Buehlmann, Maria Laguarda, Vladimir Rodriguez Trujillo
Cross-Laminated Timber (CLT) is emerging as a promising building system that could help revitalize a dwindling forest sector. However, little research has been conducted about CLT, particularly in the marketing realm. Our paper helps bridge this gap. Specifically, we aim to identify research areas that are important to successfully advance CLT as a building material in North America. Our findings, based on a survey of experts, suggest that the level of awareness about CLT among building professi...

SmartLam is ANSI/APA PRG-320 Certified to Produce Architectural Grade CLT Products! CLT CONSTRUCTION OFFERS: • Cost Savings • Reduced Construction Times • Excellent Strength-to-Weight Ratio • Superior Seismic Performance • Reduced Jobsite Labor Requirement
http://www.smartlam.com/wp-content/uploads/2017/03... [Mechanical Performance] [Web Page]
SmartLam
FLOOR SYSTEMS SmartLam CLT provides an excellent solution for structural floor systems. CLT s solid wood construction boasts a high strength to weight ratio, resulting in a superior structural floor system under both compressive and tension stress and extreme static load-carrying capacity. Our CLT panels are meticulously manufactured to provide excellent strength, stiffness, vibration, and spanning properties. Precision prefabrication of long and wide floor panels allows for quick and simple on ...

ABOUT US CROSS LAMINATED TIMBER ||| THE INTELLIGENT CHOICE FOR ENGINEERED WOOD PRODUCTS
http://www.smartlam.com/wp-content/uploads/2017/03... [Markets] [Web Page]
SmartLam
SmartLam is proud to be the first manufacturer of Cross Laminated Timber products in the United States. Located in timber-rich Northwest Montana, SmartLam manufactures Cross Laminated Timber for use in a variety of applications. Our focus is to develop practical, innovative, and sustainable solutions to satisfy all of our customer s project requirements. The SmartLam team of industry leading professionals are dedicated to producing the finest products and delivering the highest levels of custome...