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10 records – page 1 of 1.

Timber-Glass Composite: Long-term Behavior

https://research.thinkwood.com/en/permalink/catalogue1743
Year of Publication
2016
Topic
Serviceability
Mechanical Properties
Environmental Impact
Cost
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Author
Fadai, Alireza
Nicklisch, Felix
Rinnhofer, Matthias
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Timber-Glass Composite
Application
Hybrid Building Systems
Topic
Serviceability
Mechanical Properties
Environmental Impact
Cost
Keywords
Stiffening
Multi-Story
Long-term
Load Bearing
Creep
Façade
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4921-4929
Summary
Up to now, structural sealant glazing façades have been extensively applied. They are at the cutting edge of technology and meet the highest standards. The objective of several research projects was to develop stiffening glass fronts, which replace expensive frameworks or wind bracings behind the large glass windows. Thus, potential applications...
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Free
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A New Concrete-Glulam Prefabricated Composite Wall System: Thermal Behavior, Life Cycle Assessment and Structural Response

https://research.thinkwood.com/en/permalink/catalogue1296
Year of Publication
2018
Topic
Mechanical Properties
Environmental Impact
Material
Glulam (Glue-Laminated Timber)
Application
Walls
Author
Boscato, Giosuè
Dalla Mora, Tiziano
Peron, Fabio
Russo, Salvatore
Romagnoni, Piercarlo
Publisher
ScienceDirect
Year of Publication
2018
Country of Publication
Netherlands
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Walls
Topic
Mechanical Properties
Environmental Impact
Keywords
Strength
Stiffness
Concrete Glulam Framed Panel
Thermal Behaviour
Carbon Footprint
Embodied Energy
Life-Cycle Assessment
Language
English
Research Status
Complete
Series
Journal of Building Engineering
Summary
In a former paper by the authors [1], the elastic behavior of Cross Laminated Timber (CLT) and timber panels having periodic gaps between lateral lamellae has been analyzed. A thick plate homogenization scheme based on Finite Elements computations has been applied. The predicted behavior was in agreement with experimental results. In this paper, simplified closed-form solutions are derived in order to avoid FE modeling. Both cases of narrow gaps of CLT panels and wide gaps of innovative lightweight panels are investigated. CLT and timber panels with gaps are modeled as a space frame of beams connected with wooden blocks. The contribution of both beams and blocks to the panel’s mechanical response is taken into account, leading to closed-form expressions for predicting the panel’s stiffnesses and maximum longitudinal and rolling shear stresses. The derived closed-form solutions are in agreement with the reference FE results and they can be used for practical design purposes.
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Developing a Prefabricated Low-Carbon Construction System Using Cross-Laminated Timber (CLT) Panels for Multistorey Inner-City Infill Housing in Australia

https://research.thinkwood.com/en/permalink/catalogue644
Year of Publication
2012
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Lehmann, Steffen
Publisher
College Publishing
Year of Publication
2012
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Australia
Residential
Low Carbon Construction
Urban Infill Housing
Multi-Storey
Language
English
Research Status
Complete
Series
Journal of Green Building
Summary
In this chapter I describe a multidisciplinary research project into cross-laminated timber (CLT) panels which aims to transform the Australian construction and development industry and involves a range of key partners. This project will introduce CLT panels as a way to build with a lightweight prefabricated low-carbon construction system that is advantageous for urban infill and residential buildings. The challenge, research questions, and the advantages of this system are explained herein.
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Free
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Oregon Cross-Laminated Timber; An Economic Solution to Incorporating Timber into Cap and Trade

https://research.thinkwood.com/en/permalink/catalogue2706
Year of Publication
2020
Topic
Environmental Impact
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Lutje, Dakoata
Publisher
University of Oregon
Year of Publication
2020
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Topic
Environmental Impact
Market and Adoption
Keywords
Cap and Trade
Greenhouse gas emissions
Environmental Impact
Language
English
Research Status
Complete
Summary
As the state of Oregon begins to introduce a new cap and trade program to reduce the effects of its greenhouse gas emissions, the state has opted not to incorporate its largest greenhouse gas emitter; the timber industry. The decline of the timber industry after the 1980’s had lasting effects on disadvantaged communities, and state politicians have battled the cap and trade bill in fear of further deterioration of the timber industry. In this paper I aim to take an in depth look at the potential that CLT has in Oregon, how it can be promoted by the government, and what the environmental effects of it are. I found that, with the rise of mass timber construction and promotion of green building, the state has the opportunity to use revenues from its cap and trade program to economically incentivize CLT construction that can provide relief to economically stressed rural logging communities, all whole bolstering its efforts to better the environmental impact of an ever expanding construction industry.
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Wood Buildings as a Climate Solution

https://research.thinkwood.com/en/permalink/catalogue2739
Year of Publication
2020
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Himes, Austin
Busby, Gwen
Publisher
ScienceDirect
Year of Publication
2020
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Global Warming
Carbon
LCA
Life Cycle Analysis
Mid-Rise
Construction
Language
English
Research Status
Complete
Series
Developments in the Built Environment
Summary
We conducted a systematic literature search and meta-analysis of studies with side-by-side life cycle analysis comparisons of mid-rise buildings using mass timber and conventional, concrete and steel, building materials. Based on 18 comparisons across four continents, we found that substituting conventional building materials for mass timber reduces construction phase emissions by 69%, an average reduction of 216 kgCO2e/m2 of floor area. Studies included in our analysis were unanimous in showing emissions reductions when building with mass timber compared to conventional materials. Scaling-up low-carbon construction, assuming mass timber is substituted for conventional building materials in half of expected new urban construction, could provide as much as 9% of global emissions reduction needed to meet 2030 targets for keeping global warming below 1.5 °C. Realizing the climate mitigation potential of mass timber building could be accelerated by policy and private investment. Policy actions such as changing building codes, including mass timber in carbon offset crediting programs and setting building-sector-specific emissions reduction goals will remove barriers to and incentivize the adoption of mass timber. Private capital, as debt or equity investment, is poised to play a crucial role in financing mass timber building.
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Zero-Waste Mass-Timber Residential High-Rise: A Sustainable High-density Housing Solution

https://research.thinkwood.com/en/permalink/catalogue2381
Year of Publication
2020
Topic
Environmental Impact
Design and Systems
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Author
van Houten, Robert
Publisher
Delft University of Technology
Year of Publication
2020
Country of Publication
Netherlands
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Design and Systems
Keywords
Mass Timber
Residential
High-Rise
End of Life
Language
English
Research Status
Complete
Summary
More and more people live in cities. The building industry is responsible for 33% of waste production and is set to increase further to 50% in 2025. The energy efficiency is continuously increased, but the waste production at the end of life of a building is largely ignored. This design proposes a solution in the form of a zero-waste high-rise design. It uses only recyclable or renewable materials. Mass-timber is chosen as the main material as it is not only renewable and easily reusable, it is also a storage of CO2. The design reuses the foundation of existing buildings, and with the lightweight properties of mass-timber, increases the density on the location by building taller. The design is four times taller as the current buildings. To allow for sustainable densification, the design offers public and collective qualities. The building has been designed is such a way to be easily refitted during its life cycle or to be completely disassembled at the end of life.
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Free
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Cross-Laminated Secondary Timber: Experimental Testing and Modelling the Effect of Defects and Reduced Feedstock Properties

https://research.thinkwood.com/en/permalink/catalogue2104
Year of Publication
2018
Topic
Environmental Impact
Mechanical Properties
Material
CLT (Cross-Laminated Timber)

Cross-Laminated Timber: Towards a Consistent Structural Insulated Panel for Passive Building in Belgium

https://research.thinkwood.com/en/permalink/catalogue497
Year of Publication
2014
Topic
Energy Performance
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Author
Léoskool, Laurent
Descamps, Thierry
Van Parys, Laurent
Trujillo, Vladimir
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Energy Performance
Environmental Impact
Keywords
Low-Energy
Embodied Energy
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
Nowadays, it is possible to build zero-energy houses or even positive energy buildings. Nevertheless, many incoherencies exists if we attach importance to the embodied energy of its constructions. The present paper lays on the logic of structural insulated panel which is used in many low-energy and passive houses and go further in order to reduce the global greenhouse gases emissions. For this purpose, cross-laminated timber is used instead of oriented strand board and the insulation used is made of wood wool. The structure, the technology and the thermal aspects are discussed as well as the fire resistance in order to show if its new product is economically and technically interesting. Results show that the embodied energy can be drastically reduced compared to the structural insulated panels. A wood consumption reduction of thirty percent can also be obtained compared to the classical cross-laminated timber construction.
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Free
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Manufacture of Durable and Stable Cross-Laminated Strand-Veneer Lumber for Mass Timber Construction

https://research.thinkwood.com/en/permalink/catalogue2800
Topic
Mechanical Properties
Environmental Impact
Moisture
Material
CLT (Cross-Laminated Timber)
LSL (Laminated Strand Lumber)
Application
Wood Building Systems
Organization
Washington State University
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
LSL (Laminated Strand Lumber)
Application
Wood Building Systems
Topic
Mechanical Properties
Environmental Impact
Moisture
Keywords
Underutilized Species
Small Diameter
Thermal Modification
Mass Timber
Moisture Resistance
Research Status
In Progress
Notes
Project contact is Vikram Yadama at Washington State University
Summary
The broader impact/commercial potential of this PFI project is in development of a commercially-viable process for manufacturing high-performing, durable mass strand timber panels for building construction from low-value and underutilized small-diameter softwood trees, such as from hazardous fuel thinning operations for improved forest health. The broader impacts are: (1) advancement of discovery and understanding while promoting teaching, training, and learning by including students and faculty in the research; (2) enhancement of infrastructure for research and education by establishing collaborations between interdisciplinary, yet complementary academic and industry stakeholders; (3) broadening of research dissemination to enhance understanding by involving industry and academia in the research, publishing project results in diverse media sources, and presenting research results in several formats that will benefit a wide range of forest products industry stakeholders; and (4) improved economic competitiveness of the U.S. forest products industry. In addition, if this proof-of-concept research leads to commercial applications, the benefits to society are: (1) new products with reduced environmental impacts, improved durability, and longer service-life; (2) technology that increases the U.S. forest products industry's competitiveness through creation of new jobs and increased opportunities for potential exports; and (3) increased use of wood, an environmentally-friendly, renewable, sustainable, and carbon-sequestering material. The proposed project addresses challenges facing cross-laminated timber (CLT) panels in mass timber construction. Construction currently requires extreme care to protect CLT panels from moisture while ensuring long-term durability. Although builders take measures to reduce moisture exposure, it is inevitable that the CLT panels will take on water during their service-life. This project addresses these problems by utilizing thermal modification to produce chemical-free, mass timber panels with increased resistance to moisture and decay and improved dimensional stability. The goals are to: (1) evaluate process-performance relationships for thermal modification of small-diameter wood strands, and (2) demonstrate the feasibility of manufacturing high-performance cross-laminated strand-veneer lumber (CLSVL) mass timber panels. The objectives are to: (1) demonstrate the feasibility of utilizing thermally modified laminated strand veneer lumber for production of high-performance CLSVL panels, and (2) determine the potential environmental impacts of the new CLSVL panels. The technical results include validation of a repeatable process for thermally modifying small-diameter pine strands, validation of a method for manufacturing CLSVL panels, verification of physical and mechanical performance of the CLSVL panels, and establishment of commercially-viable process-performance relationships to enable commercial production of the CLSVL mass timber panels.
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Environmental Impacts of Building Construction Using Cross-laminated Timber Panel Construction Method: A Case of the Research Building in Kyushu, Japan

https://research.thinkwood.com/en/permalink/catalogue2412
Year of Publication
2020
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems

10 records – page 1 of 1.