Residential Case Studies
https://www.woodsolutions.com.au/case-studies-sear... [Case Study/Projects] [Web Page]
WoodSolutions
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Lightweighting with Timber: An Opportunity for More Sustainable Urban Densificat
https://doi.org/10.1061/(ASCE)AE.1943-5568.0000301... [Environmental Performance] [Journal Article] 2018
Robert M. Foster, Thomas P.S. Reynolds
Forum papers are thought-provoking opinion pieces or essays founded in fact, sometimes containing speculation, on a civil engineering topic of general interest and relevance to the readership of the journal. The views expressed in this Forum article do not necessarily reflect the views of ASCE or the Editorial Board of the journal....

Solutions for mid-rise wood construction: fire test for rainscreen wall system (
http://doi.org/10.4224/21274565... [Fire Performance] [Journal Article] 2014
E. Gibbs, B.C. Taber, G.D. Lougheed, J.Z. Su, N. Benichou
One of the tasks in the project, Wood and Wood-Hybrid Midrise Buildings, was to develop further information and data for use in developing generic exterior wall systems for use in mid-rise buildings using either lightweight wood frame or cross-laminated timber as the structural elements. This report describes a screening fire test conducted on August 22, 2012 on a rainscreen wall system. The test was based on CAN/ULC-S134-13 [3]. However, the dimensions of the test wall (2.4 m wide by 4.9 m high...

March 2014 Pub Update - March 2014 Click on the links to download the following new and updated publications. APA Case Study Showcases Glulam Timber Truss Bridge in Remote Alaskan Wilderness
https://www.apawood.org:443/march-2014-pub-update... [Other] [Web Page] 2014
APA
The 280-foot long camelback bridge – the longest clear-span glulam timber truss bridge in North America – is profiled in a new APA Case Study. Constructed with preservative-treated Douglas fir glulam trusses, Alaskan Yellow Cedar decking, and steel connectors, the bridge is located in Chugach National Forest at the Spencer Glacier Whistle Stop, one of five stops planned along a new railway in Alaska’s National Forests and Parks. Download a free PDF of APA Case Study: Placer River Trail Bridge (...

AWC: Final Formaldehyde Rule consistent with industry’s commitment to safety
http://www.awc.org/news/2016/12/12/awc-final-forma... [Other] [Web Page] 2016
American Wood Council
Today, the final rule on the U.S. Environmental Protection Agency’s (EPA) Formaldehyde Standards for Composite Wood Products Act was published in the Federal Register. The American Wood Council (AWC) supported the legislation passed in 2010. AWC President and CEO Robert Glowinski issued the following statement in response to the final rule. “We supported the legislation as consistent with good product stewardship. Implementing this rule essentially extends California’s regulations nationwide, wi...

Tall Wood Buildings on the Rise
https://www.fpl.fs.fed.us/labnotes/?p=25658... [Tall Buildings] [Web Page] 2015
Rebecca Wallace
Dezeen, an online magazine & showcase of architecture, design and interior projects from around the world, recently ran an article touting wood as the “architectural wonder material of the 21st Century.” The article, titled ‘Architects embrace “the beginning of the timber age,“‘ features a stunning gallery of images of some of the most remarkable wood structures ever built, and architects weigh in on the benefits of mass timber products, such as cross laminated timber (CLT), that allow for desig...

Timber-concrete-composites increasing the use of timber in construction
https://link.springer.com/content/pdf/10.1007%2Fs0... [Alternative/Hybrid Configurations] [Journal Article] 2016
A. Dias, J. Skinner, K. Crews, T. Tannert
Timber-concrete-composite (TCC) systems have increasingly been used in recent decades. One of the main reasons for this development is related to applications that could not be built with timber alone, but that become possible with a TCC solution. This paper first gives a short overview of the use of TCCs, the relevant regulatory framework, and then presents several case studies of TCC applications. The perspectives and examples are from Eur-ope, North America and Oceania to give a worldwide per...

Creating the world’s tallest CLT apartment building
http://www.timberqueensland.com.au/Docs/News%20and... [Tall Buildings] [Report] 2013
Lend Lease
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2012 IBC, ASCE 7 and 2008 SDPWS Seismic Provisions for Wood Construction
http://awc.org/pdf/education/des/AWC-DES412-1-Seis... [Seismic Performance] [Presentation] 2015
John Showalter, Michelle Kam-Biron
This presentation highlights 2012 International Building Code (IBC), 2010 Minimum Design Loads for Buildings and Other Structures (ASCE 7-10) and the 2008 Special Design Provisions for Wind and Seismic (SDPWS) requirements applicable to the seismic design of wood structures. Wood-frame shear wall and diaphragm code issues are discussed including deflection equations, detailing requirements, and limitations on the use of wood in seismic design. Changes from previous codes and standards will also ...

Timber UPdate: 2016 National Construction Code Change
https://www.woodsolutions.com.au/sites/default/fil... [Standards/Building code] [Report] 2016
Wood Solutions
Architects, developers, building designers, engineers and builders have welcomed changes to the National Construction Code which allow massive timber and lightweight timber construction of buildings up to 25 m – effectively eight storeys in height....

Evaluating Decay Resistance of Mass Timber
https://www.fpl.fs.fed.us/documnts/rips/fplrip-472... [Moisture/Durability] [Report] 2016
Grant Kirker, Katie Ohno, C. Elizabeth Stokes
Mass timber, which includes cross-laminated timber (CLT), has begun to see use in the mid-rise and tall building construction market in parts of Canada and the northwestern United States. In the past few years, manufacturers have looked toward expanding the use of mass timber in the North American market. However, testing of mass timber resistance to wood-degrading fungi has yet to be examined. With large sections of the United States falling into Intermediate (3) to Severe (5) decay zones, an e...

Ductility Estimation for a Novel Timber-Steel-Hybrid System with Consideration o
https://ascelibrary.org/doi/abs/10.1061/9780784479... [Alternative/Hybrid Configurations] [Journal Article] 2015
Xiaoyue Zhang, Michael Fairhurst, Kuldeep Kaushik, Thomas Tannert
In the 2010 National Building Code of Canada (NRC 2010), certain structures can be designed for seismic loads using an equivalent static force procedure. In these provisions, elastic design forces are reduced by a ductility factor, Rd, which accounts for the ability of different systems to deform beyond yielding. The NBCC 2010, however, only provides ductility factors for traditional structural systems, including timber- or steel-based systems; there are currently no specific Rd factors for hybr...

Will Skyscrapers of Tomorrow be “Plyscrapers”?
https://www.fpl.fs.fed.us/labnotes/?p=26699... [General Information] [Web Page] 2016
Rebecca Wallace
If anyone is going to be enthusiastic about building with wood, its researchers from the Forest Products Laboratory (FPL). FPL engineers Dave Kretschmann and Doug Rammer recently shared that enthusiasm with the folks from Smithsonian.com and imparted their wisdom about the virtues of building tall with wood. The result is a comprehensive article on cross-laminated timber (CLT) and the opportunities it affords architects, engineers, and users alike. According to Kretsmann, CLT has “energized the ...

Shear strength of Canadian softwood structural lumber
http://www.nrcresearchpress.com/doi/citedby/10.113... [Mechanical Performance] [Journal Article] 1997
F. Lam, H. Yee, J.D. Barrett
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Earthquake Archives
https://csengineermag.com/tag/earthquakes/page/2... [General Information] [Web Page]
Civil + Structural Engineering
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Bond Behavior between Softwood Glulam and Epoxy Bonded-In Threaded Steel Rod
http://dx.doi.org/10.1061/%28ASCE%29MT.1943-5533.0... [Bonding/Adhesives] [Journal Article] 2016
Zhibin Ling, Weiquing Liu, Frank Lam, Huifeng Yang
This study aims to develop an improved understanding of the interfacial bond behavior of softwood glulam joints with bonded-in threaded steel rod. A total of 39 glulam joints with bonded-in single-threaded steel rods were tested to failure in the pull-pull configuration. The test results were presented in term of failure modes, load-relative movement response, pullout strength, and the corresponding slip. The distributions of bonded-in rod axial strain, interfacial bond stress, and relative move...

Experimental study on cyclic behavior of cast steel connectors for beam-to-colum
https://doi.org/10.1177/1369433216649379... [Alternative/Hybrid Configurations] [Journal Article] 2016
Yingzhi Chen, Lewei Tong, Yiyi Chen
This article presents an experimental study on two innovative types of cast steel connectors, which would be used as a replaceable energy-dissipating component in the beam-to-column joint. The main aim was to use the connectors as the main source of deformation and energy dissipation, and to realize rapid repair of the joints by simple replacement of these connectors after earthquakes. A total of eight cyclic tests under two loading procedures were conducted on three types of connectors, namely,...

KLH: Lauriston Primary School
http://www.klhuk.com/portfolio/education/lauriston... [Commercial/Company Information] [Web Page]
KLH
Designed by Meadowcroft Griffin Architects, the new 2FE primary school proposed a number of challenges that needed to be resolved including a range of site complexities not just on a logistical level, but to create a future school that would be a cohesive, exemplary innovative learning environment. The use of the KLH cross-laminated timber system enabled the first phase of the main school to be built next to the existing, the phased completion of additional classrooms following the demolition o...

New Technologies for Construction of Medium Rise Buildings in Seismic Regions: The XLAM Case
http://www.ingentaconnect.com/contentone/iabse/sei... [Seismic Performance] [Journal Article] 2008
Ario Ceccotti
This paper reports on the outcomes of an experimental test performed on a full-scale building constructed using innovative technology. The experimental results are compared with the outcomes of a numerical analysis with the aim to derive the behaviour factor q used in a simplified elastic design of the building under seismic actions....

How cross-laminated timber buildings are built | Woodworking Network
http://www.woodworkingnetwork.com/wood/panel-suppl... [Markets] [Others]

BRITISH COLUMBIA - Sustainable construction firm Adera and cross-laminated timber (CLT) pioneers Structurlam met with media to discuss the construction of Aderas new Virtuoso building. Virtuoso is poised to become North America’s first market multi-family development using CLT. “But the reality is that CLT — or mass timber, as it’s also known — meets or exceeds concrete in many areas. Using cranes, Aderas panels were easily transported to their predetermined spots, where two construction crew m...