Tests and models for engineered wood product connections using small steel tube fasteners
https://www.researchgate.net/publication/241079161... [Connectors] [Journal Article] 2011
Bona Murty, Andi Asiz, Ian Smith
Laminated Strand Lumber (LSL) is a type of engineered wood product widely used as a substitute for sawn structural lumber. This is because LSL can be manufactured to have superior mechanical and physical performance to competing products, including high resistance to splitting, high strength and dimensional stability. The authors studied connections in LSL with behaviour of similar connections in sawn Spruce lumber as a benchmark. Proneness to splitting is the Achilles heel of most wood-based co...

New Report Highlights Steel and Timber Construction for High-Rise Buildings
https://www.aisc.org/pressreleases/press-releases/... [Tall Buildings] [Magazine/Newspaper Article] 2017
Jenna Carpentier
The American Institute of Steel Construction (AISC) and Skidmore, Owings & Merrill LLP (SOM) have released a new report and a video presentation on steel and timber research for mid- and high-rise residential buildings, available for free at www.aisc.org/timberresearch. Structural steel frames have many benefits that complement residential construction, such as prefabrication and speed of construction. These characteristics are similar to emerging technologies such as cross-laminated timber. AI...

Load sharing and weakest lamina effects on the compressive resistance of cross-laminated timber under in-plane loading
https://link.springer.com/content/pdf/10.1007%2Fs1... [Mechanical Performance] [Journal Article] 2018
Sung-Jun Pang, Gi Young Jeong
A new approach was developed to predict the compressive resistance of cross-laminated timber (CLT) using the compressive strength of small samples of different grade lamina from E12 and E8 larch, and E10 and E6 nut pine. CLT of three different thicknesses was manufactured using different grades of laminas from each species. To evaluate the compressive resistance of CLT, three different methods were employed. The first method was used to determine the compressive resistance, which was predicted b...

Flexural performance of cross-laminated timber constructed from fibre-managed plantation eucalyptus
https://www.researchgate.net/publication/331815955... [Raw Materials] [Journal Article] 2019
Halimeh Pangh, Hamid Zarea Hosseinabadi, Nathan Kotlarewski, Payam Moradpour, Michael Lee, Gregory Nolan
The possibility of using pulp log from fiber managed eucalyptus in CLT was assisted. Flexural performance of CLT panels from E. globulus is higher than that of E. nitens. Flexural performance of the panels is higher than that of other eucalyptus species. Failure mode is affected by the grades of top and bottom layers board. a b s t r a c t This study was performed to evaluate the flexural performance of three-ply cross-laminated timber (CLT) floor panels made of unthinned and unpruned plantation...

Numerical Study of Alternative Seismic-Resisting Systems for CLT Buildings
https://www.researchgate.net/publication/329000057... [Seismic Performance] [Journal Article] 2018
Cristiano Loss, Stefano Pacchioli, Andrea Polastri, Daniele Casagrande, Luca Pozza, Ian Smith
Changes to building codes that enable use of materials such as cross-laminated timber (CLT) in mid- and high-rise construction are facilitating sustainable urban development in various parts of the world. Keys to this are the transition to multi-performance-based design approaches along with fewer limitations on heights or the number of storeys in superstructures constructed from combustible materials. Architects and engineers have increased freedom to apply new design and construction concepts ...

Fire design of CLT in Europe
https://www.researchgate.net/publication/322991972... [Fire Performance] [Journal Article] 2018
Birgit Anna-Lisa Östman, Joachim Schmid, Michael Klippel, Alar Just, Norman Werther, Daniel Brandon
The fire safety design of cross-laminated timber (CLT or X-Lam) in Europe is governed by the Construction Products Regulation and its essential requirements, as for all other building products. These requirements are mandatory, to be used in all European countries. They include classification systems for reaction to fire of building products, fire resistance of building elements, and structural Eurocodes. The reaction-to-fire performance of CLT in accordance with the European classification syst...

Design of Controlled Rocking Heavy Timber Walls for Low-to-Moderate Seismic Hazard Regions
https://www.researchgate.net/publication/308778596... [Seismic Performance] [Thesis/Dissertation] 2016
Michael Kovacs
The controlled rocking heavy timber wall (CRHTW) is a high-performance structural solution that was first developed in New Zealand, mainly considering Laminated Veneer Lumber (LVL), to resist high seismic loads without sustaining structural damage. The wall responds in bending and shear to small lateral loads, and it rocks on its foundation in response to large seismic loads. In previous studies, rocking has been controlled by both energy dissipation elements and post-tensioning, and the latter ...

Guide to Cross-Laminated Timber Use Expands Wood Construction Options
https://www.fpl.fs.fed.us/labnotes/?p=418... [Markets] [Report] 2013
Rebecca Wallace
As interest in sustainable building continues to grow, wood construction is going beyond its traditional roots in housing and expanding into mid-rise, high-rise, and non-residential applications. To support this trend, a new guide for the early adoption of cross-laminated timber (CLT), an innovative engineered wood product, is now available....

Comparative study on measurement of elastic constants of wood-based panels using modal testing: choice of boundary conditions and calculation methods
http://link.springer.com/10.1007/s10086-017-1645-0... [Mechanical Performance] [Journal Article] 2017
Jianhui Zhou, Ying Hei Chui, Meng Gong, Lin Lin Hu
Modal testing based on the theory of transverse vibration of orthotropic plate has shown great potentials in measuring elastic constants of panel products. Boundary condition (BC) and corresponding calculation method are key in affecting its practical application in terms of setup implementation, frequency identification, accuracy and calculation efforts. To evaluate different BCs for non-destructive testing of wood-based panels, three BCs with corresponding calculation methods were investigated...

General notes on ductility in timber structures
https://www.researchgate.net/publication/229250876... [Mechanical Performance] [Journal Article] 2011
Andre Jorissen, Massimo Fragiacomo
The paper discusses the implications of ductility in design of timber structures under static and dynamic loading including earthquakes. Timber is a material inherently brittle in bending and in tension, unless reinforced adequately. However connections between timber members can exhibit significant ductility, if designed and detailed properly to avoid splitting. Hence it is possible to construct statically indeterminate systems made of brittle timber members connected with ductile connections t...

In-plane stiffness of hybrid steel-cross-laminated timber floor diaphragm
https://www.researchgate.net/publication/325953567... [Mechanical Performance] [Journal Article] 2018
Cristiano Loss, Stefano Rossi, Thomas Tannert
The use of hybrid structural systems formed by combining wood with other materials provides engineers with a wide range of solutions to satisfy code requirements for mid- and possibly high-rise buildings. Hybrid wood-based systems include a wide range of construction methods and different levels of integration of materials and components. The research discussed in this paper presents an innovative hybrid timber-steel solution for floor diaphragms developed by joining cross-laminated timber panel...

Comparative study on measurement of elastic constants of wood-based panels using modal testing: choice of boundary conditions and calculation methods
https://link.springer.com/content/pdf/10.1007%2Fs1... [Mechanical Performance] [Journal Article] 2017
Jianhui Zhou, Ying Hei Chui, Meng Gong, Lin Lin Hu
Modal testing based on the theory of transverse vibration of orthotropic plate has shown great potentials in measuring elastic constants of panel products. Boundary condition (BC) and corresponding calculation method are key in affecting its practical application in terms of setup implementation, frequency identification, accuracy and calculation efforts. To evaluate different BCs for non-destructive testing of wood-based panels, three BCs with corresponding calculation methods were investigated...

Mid-Rise Buildings – Research - The Canadian Wood Council - CWC : The Canadian W
http://cwc.ca/why-build-with-wood/sophisticated/mi... [General Information] [Web Page] 2019
Canadian Wood Council
Why build with wood Safe Building Code Fire Safety Flame Spread Fire Resistance Construction Sites Strong Structural Design Lumber properties Durability Moisture and Decay About Moisture and Wood About Decay About Termites Permanent Wood Foundations Durability by design Durability by nature Durability by treatment Finishing Exterior Wood Non-Pressure Treated Wood Pressure Treated Wood Sophisticated Tall Wood Buildings Tall Wood Buildings – Research Mid-Rise Buildings Mid-Rise Buildings – Researc...

Development of southern pine cross-laminated timber for Building Code acceptance
https://www.researchgate.net/publication/293114510... [Raw Materials] [Journal Article] 2013
Daniel Hindman, J. Bouldin
The current interest and growth of cross laminated timber (CLT) products has spurred interest in the manufacture of CLTs in the United States. The purpose of this paper is to explore the development of CLT materials from southern pine lumber commonly available in Virginia. A 5-layer CLT panel has been constructed using No. 2 southern pine lumber. Evaluation of mechanical properties, fire performance and acoustical performance were conducted. Results of these evaluations can guide the development...

Environmental Building Declarations: Analyzing a Structure from Cradle to Grave
https://www.fpl.fs.fed.us/labnotes/?tag=ebd... [Environmental Performance] [Report] 2017
Rebecca Wallace
The USDA Forest Service, Forest Products Laboratory, in cooperation with US WoodWorks, engaged the Athena Institute to prepare an environmental building declaration (EBD) for the Design Building on the Amherst campus of the University of Massachusetts. This is a new four-story 87,573 square-foot home for three departments: Architecture, Landscape Architecture and Regional Planning, and Building Construction Technology. The cross-laminated timber building, designed by Leers Weinzapfel Associates ...

Seismic drift demands in multi-storey cross-laminated timber buildings
https://www.researchgate.net/publication/320624915... [Seismic Performance] [Journal Article] 2017
Cagatay Demirci, Christian Málaga-Chuquitaype, L. Macorini
This paper investigates the seismic response of multi-storey cross-laminated timber (CLT) buildings and its relationship with salient ground-motion and building characteristics. Attention is given to the effects of earthquake frequency content on the inelastic deformation demands of platform CLT walled structures. The response of a set of 60 CLT buildings of varying number of storeys and panel fragmentation levels representative of a wide range of structural configurations subjected to 1656 real...

Building Blocks Mass Timber: Knowing Your Options
https://www.structuremag.org/wp-content/uploads/20... [Markets] [Magazine/Newspaper Article] 2017
Robert Jackson, Tanya Luthi, Ian Boyle
Mass timber building systems are becoming more popular throughout North America as creative and cost-effective alternatives to concrete and steel construction. While post and beam timber frame buildings have been around for centuries, new panelized products have begun to change the way we build with wood....

SOFIE project – 3D shaking table test on a seven-storey full-scale cross-laminated timber building
https://www.researchgate.net/publication/264453738... [Seismic Performance] [Journal Article] 2013
Ario Ceccotti, Carmen Sandhaas, Minoru Okabe, Motoi Yasumura, Chikahiro Minowa, Naohito Kawai
Multi-storey buildings made of cross-laminated timber panels (X-lam) are becoming a stronger and economically valid alternative in Europe compared with traditional masonry or concrete buildings. During the design process of these multi-storey buildings, also their earthquake behaviour has to be addressed, especially in seismic-prone areas such as Italy. However, limited knowledge on the seismic performance is available for this innovative massive timber product. On the basis of extensive testing...

Take the Stairs: SRG’s Studious Step Up | Think Wood
https://www.thinkwood.com/news/take-the-stairs-srg... [Case Study/Projects] [Web Page] 2018
Think Wood
Washington State University’s Everett-based University Center, the inaugural building for WSU’s new branch campus, brings together student services, a tiered lecture hall, faculty offices, media-rich classrooms and laboratories into one integrated facility. The multifunctional center is part of WSU’s move to expand access to higher education in science, technology, engineering and math throughout the North Puget Sound region...

STRUCTURE magazine | Mass Timber: Knowing Your Options
https://www.structuremag.org/?p=10916... [Markets] [Magazine/Newspaper Article] 2017
Robert Jackson, Tanya Luthi, Ian Boyle
Mass timber building systems are becoming more popular throughout North America as creative and cost-effective alternatives to concrete and steel construction. While post and beam timber frame buildings have been around for centuries, new panelized products have begun to change the way we build with wood....