Tall Wood
https://www.naturallywood.com/emerging-trends/tall... [Tall Buildings] [Web Page] 2016
naturally:wood
With construction professionals and designers seeking lower carbon building alternatives and renewable materials, there is a growing interest to expand the tall wood building sector in Canada and beyond. Building taller with wood is not only achievable, it’s already underway with advanced construction technologies and modern mass timber products such as glued laminated timber, cross laminated timber and structural composite lumber. In the past 10 years, over 28 wood buildings, 7-stories and tall...

World’s Tallest Timber Tower Currently Under Construction in Vancouver
http://easternwhitepine.org/worlds-tallest-timber-... [Case Study/Projects] [Magazine/Newspaper Article] 2016
S.A. Rogers
It looks as if Vancouver, B.C. could become home to the world’s tallest timber tower by summer 2017, assuming it ’s completed before several other planned projects in Europe. Designed by Acton Ostry Architects, the Brock Commons Student Residence at the University of British Columbia is set to be 53 meters (173.8 feet) tall, with housing for 404 students. This particular plan calls for a hybrid of mass wood and concrete; the two freestanding concrete cores are already built and the wood structur...

Gerti3
http://www.massivholzsystem.at/gerti3... [Vibration/Acoustic Performance] [Web Page]
Massivholzsystem
Sie fragen sich bestimmt, was es mit GERTI³ auf sich hat. Sie ist ein Best-Practise-Beispiel in Sachen mehrgeschossiger Wohnbau in CLT Massivholz. Denn wir wollen noch mehr Menschen für den Holzbau begeistern - kaum ein anderer Baustoff kann mit der Flexibilität und Vielseitigkeit von CLT Schritt halten....

International House Sidney
http://timberdesignawards.com.au/component/speasyi... [Other] [Web Page]
Timber Design Awards
International House Sydney (IHS) is Australia’s first commercial and largest engineered timber building. The structure utilises a spruce CLT and Glulam structure, including floors, columns, walls, roof, lift shaft and stairs, supplemented with recycled Australian hardwood. Designed by Tzannes architects, IHS is a distinctive new element in the city, intended to establish a warm and welcoming connection between the new harbour precinct of Barangaroo and the heart of the city. The architecture en...

B.C. Wood Design Awards event the largest yet
https://canada.constructconnect.com/joc/news/proje... [Design/Architectural aspects] [Magazine/Newspaper Article] 2018
Journal of Commerce
The designers and builders of British Columbia’s best wood projects are in the spotlight. WoodWORKS! BC held its 14th annual Wood Design Awards on Feb. 26 at the Vancouver Convention Centre, with winners spanning the gamut from small and large institutional structures to the multiple award-winning Brock Commons — Tallwood House building, currently the tallest wood structure in the world. This year’s event was the largest yet, with close to 500 contractors, architects and others from the construc...

Business in Vancouver Talks Benefits of Glulam and CLT
http://www.structurlam.com/whats-new/news/business... [General Information] [Web Page] 2017
StructureLam
An often-heard criticism in B.C., where dozens of sawmills have closed in recent years, is that the province should be doing more value-added manufacturing with its timber, rather than just exporting it as raw logs. And when politicians want to highlight a success story in B.C.’s value-added wood manufacturing to demonstrate what they’re talking about, they can always point to Structurlam Products Ltd. in Penticton. Structurlam is indeed a B.C. success story, but it’s by no means an overnight on...

L’idea che ci ha regalato il sorriso: intervista a david venables
http://www.americanhardwood.org/it/latest/blog/lid... [Case Study/Projects] [Web Page] 2016
Ruth Slavid
‘The Smile’ è stato creato dall’architetta Alison Brooks e dalla società londinese Arup utilizzando tuliper lamellare a strati incrociati (CLT). L’American tulipwood è un legno abbondantemente presente in natura, leggero ma resistente, e ‘The Smile’ nasce per dimostrare che questo materiale è adatto anche ad applicazioni strutturali. Se è vero che il legno lamellare a strati incrociati (CLT) è un materiale sempre più diffuso nell’edilizia globale, è anche vero che a essere usato è esclusivamente...

Performance evaluation of multi-storey cross-laminated timber structures under different earthquake hazard levels
https://link.springer.com/article/10.1007%2Fs10086... [Seismic Performance] [Journal Article] 2017
Xiaofeng Sun, Minjuan He, Zheng Li, Zhan Shu
The inter-storey drift limitations are meaningful reference values for structural seismic performance evaluation. This paper presents an analytical investigation into the seismic performance of multi-storey cross-laminated timber (CLT) structures to obtain the drift limitations under different earthquake hazard levels reasonably. The Pinching4 model was used to simulate the nonlinear mechanical behavior of three types of connections used in CLT structures, and a numerical model was further devel...

Failure Modes in CLT Connections
https://schd.ws/hosted_files/wcte2014/0c/ABS706_Mo... [Connectors] [Conference Paper] 2014
M. Mohammad, Pierre Quenneville, Alexander Salenikovich, Pouyan Zarnani, Williams Munoz
Information on ductile and brittle failure modes is critical for proper design of timber connections in Cross-laminated Timber (CLT). While considerable research has been conducted in Europe and Canada on the ductile performance of connections in CLT, little is known about the brittle behaviour. This paper presents new information from testing programs and analysis performed in Canada and in New Zealand on the brittle performance of dowel-type fasteners in CLT. The testing programs have been des...

Swimming-Pool Building Made with X-Lam Panels
https://schd.ws/hosted_files/wcte2014/0d/ABS692_Di... [Case Study/Projects] [Conference Paper] 2017
Luís Jorge, Alfredo Dias
Cross-laminated timber panels (X-Lam panels) are produced for structural use in Service Classes 1 and 2, in accordance with Eurocode 5 and no producer have been able to certify for use in Service Class 3. The swimming-pools are known to be buildings with high hygrometry and the paper describes the use of X-Lam panels in such use, following a project completed in 2012, in Portugal. X-Lam panels are used within the building, through visible surfaces in walls and ceilings. Constructive solutions ar...

Mass Timber Research Needs
http://mifbi.org/wp-content/uploads/2017/03/mass-t... [General Information] [Presentation] 2015
Bob Ross
...

Timber-Steel Hybrid Beams for Multi-Storey Buildings: Design Criteria, Calculation and Tests
http://schd.ws/hosted_files/wcte2014/2c/ABS675_Pix... [Alternative/Hybrid Configurations] [Conference Paper] 2014
Kamyar Tavoussi, Wolfgang Winter, Tamir Pixner, Felipe Riola Parada
Timber-steel hybrid elements are structurally reliable, clean and fast to assemble and disassemble, light, ecologic and economic. Design criteria and a calculation model for beams were developed and a series of real scale tests were carried out in order to check their performance. The results proved to be satisfactory and promising for the final objective of building structural frames for different types of multi-story buildings....

Mechanically Joined CLT Panels for Wall, Floor and Timber-Concrete Composite Structures
http://schd.ws/hosted_files/wcte2014/5a/ABS505_Kuk... [Connectors] [Conference Paper] 2014
Petr Kuklík, Lukáš Velebil, Pavel Nechanický
Cross laminated timber (CLT) has become very popular for all types of structures all around the world in last years. CLT consists of uneven number of plank layers oriented in 90° angle to each other and bonded together. Various types of adhesives and technologies are used for bonding and manufacturing of final product. In some cases, gluing is not ideal manufacturing method and there is a demand of other manufacturing processes. Mechanical jointing is logical result of current research at the Cz...

A New Construction System for CLT Structures
http://schd.ws/hosted_files/wcte2014/da/ABS512_Ang... [Alternative/Hybrid Configurations] [Conference Paper] 2014
Andrea Polastri, Albino Angeli, Dal Ri Gianni
The technique proposed herein, aims to solve the construction site issues related to both the handling and the assembly of cross laminated timber walls (CLT), through an innovative preassembled connection system. This system, which thanks to its being prefabricated permits to save time during the installation process, provides also a high strength and a high stiffness to the panel joints. As a result, an improvement of the building safety is attained for both static and seismic conditions. The m...

Design of Testing of Post-Tensioned Timber Wall Systems
http://schd.ws/hosted_files/wcte2014/df/ABS420_Sar... [Alternative/Hybrid Configurations] [Conference Paper] 2014
Francesco Sarti, Alessandro Palermo, Stefano Pampanin
Post-tensioning low-damage technologies has been first developed in the late 1990s as main outcome of the U.S. PRESSS (PREcast Seismic Structural System) program coordinated by the University of California, San Diego and culminated with the pseudo-dynamic test of a large scale five-story test building [1]. Further development of the technology has been achieved with a an extensive research program at the University of Canterbury, leading to code provisions [2] and design guidelines [3], as well ...

Hollow Massive Timber Panels: A High-Performance, Long-Span Alternative to Cross Laminated Timber
http://schd.ws/hosted_files/wcte2014/e1/ABS418_Pan... [Alternative/Hybrid Configurations] [Conference Paper] 2014
W. Graham Montgomery, Scott D. Schiff, Weichiang Pang
Solid Cross Laminated Timber floor panels do not take full advantage of the strength and stiffness of the wood used to produce it. It is controlled by vibration in most designs and has been found to be inefficient for long spans. Therefore, hollow wood panels were investigated in order to deepen the cross-section to make a more structurally efficient panel while taking advantage of many other benefits. An analytical study was done in order to found which cross-section could produce the most effi...

Using Low-Grade Hardwoods for CLT Production: A Yield Analysis
https://www.fs.fed.us/nrs/pubs/jrnl/2017/nrs_2017_... [Raw Materials] [Presentation] 2017
R. Edward Thomas, Urs Buehlmann
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, lo...

Expanding the Cross-Laminated Timber Market through Building Moisture Monitoring and Improved Modeling
https://www.fpl.fs.fed.us/documnts/rips/fplrip-472... [Moisture/Durability] [Report]
Shiling Pei, Samuel L. Zelinka
Cross-laminated timber (CLT) is a recently developed heavy timber building material that has the potential to expand the wood building market. Although much has been studied on CLT building system structural and fire behavior, little is known about the construction and in-service moisture performance of CLT buildings. This project will address the dearth of knowledge and data on CLT building moisture performance and mod-eling by conducting on-site monitoring of CLT building projects in different...

Control of Solar-Driven Moisture Diffusion in Cross-Laminated Timber Walls with Absorptive Claddings
https://www.fpl.fs.fed.us/documnts/rips/fplrip-471... [Moisture/Durability] [Report]
Samuel V. Glass
Cross-laminated timber (CLT) is a massive prefabricated panel used for construction of walls, roofs, and floors. CLT panels are made with at least three layers of lumber bonded together, with each layer oriented perpendicular to the adjacent layers. CLT is made from an abundant renewable resource, sequesters carbon, has low embodied energy, and has excellent aesthetic, structural, and thermal properties. Use of CLT in buildings is growing in North America, but a critical knowledge gap that hinde...

Seismic Retrofit of Soft-Story Woodframe Buildings Using Cross Laminated Timber
https://www.fpl.fs.fed.us/documnts/pdf2013/fpl_201... [Seismic Performance] [Journal Article] 2013
John W. Van De Lindt, Pouria Bahmani, Mikhail Gershfeld, Giraj Kumar Kandukuri, Doug Rammer, Shiling Pei
As early as 1970, the structural engineering and building safety community recognized that a large number of two-, three-and four-story woodframe buildings designed with the first floor used either for parking or commercial space were built with readily identifiable structural system deficiencies, referred to as a soft story. Thus, many multi-story woodframe buildings are susceptible to collapse at the first story during earthquakes. The majority of these older multi-story woodframe buildings ha...