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14 records – page 1 of 2.

Awareness, Perceptions and Willingness to Adopt Cross-Laminated Timber in the United States

https://research.thinkwood.com/en/permalink/catalogue1435
Year of Publication
2014
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Laguarda Mallo, Maria Fernanda
Organization
University of Minnesota
Year of Publication
2014
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
US
Awareness
Perceptions
Language
English
Research Status
Complete
Online Access
Free
Resource Link
Less detail

Constructing Our Environments: A Material Comparison

https://research.thinkwood.com/en/permalink/catalogue161
Year of Publication
2014
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)

Critical Factors in the Willingness to Adopt Innovative Wood-Based Building Materials in the Construction Industry: The Case of CLT

https://research.thinkwood.com/en/permalink/catalogue1436
Year of Publication
2017
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Laguarda Mallo, Maria Fernanda
Organization
University of Minnesota
Year of Publication
2017
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
US
North American Market
Language
English
Research Status
Complete
Online Access
Free
Resource Link
Less detail

Establishing New Markets for CLT - Lessons Learned

https://research.thinkwood.com/en/permalink/catalogue1427
Year of Publication
2017
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)

Expanding Opportunities for Mid-Rise Buildings in Chile through the Application of Timber Panel Systems

https://research.thinkwood.com/en/permalink/catalogue193
Year of Publication
2012
Topic
Market and Adoption
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Rivera, Cristián
Organization
University of British Columbia
Year of Publication
2012
Country of Publication
Canada
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Market and Adoption
Seismic
Keywords
Chile
Codes
Mid-Rise
Prefabrication
City Densification
Language
English
Research Status
Complete
Summary
During the last few years, the merging of timber building tradition with the application of new technologies has produced new prefabricated building systems in Europe and North America. Mid-rise buildings present a unique opportunity to apply new timber technologies. Chile has shown sustained growth of buildings construction during the past decades but little further development in the use of wood. To establish the feasibility of timber systems applied to the Chilean context this research considered social aspects, technical aspects and local standards related to the manufacture and construction using timber components. A project proposal is used to analyze the architectural applications of timber systems according to the Chilean context. The design considers the case of densification in the city of Santiago and investigates the possibility of developing mid-rise structures using the structural properties and features of timber systems. So far only two systems applied to mid-rise structures have been tested for seismic resistance on full scale prototypes: Midply and Cross Laminated Timber.
Online Access
Free
Resource Link
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Exploring Cross-Laminated Timber Use for Temporary Military Structures: Ballistic Considerations

https://research.thinkwood.com/en/permalink/catalogue2371
Year of Publication
2018
Topic
Design and Systems
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Sanborn, Kathryn
Publisher
Georgia Institute of Technology
Year of Publication
2018
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Market and Adoption
Keywords
Ballistic Resistance
Panels
Military Structures
Blast Analysis Tool
Spruce-Pine-Fir
Southern Pine
SPF
Language
English
Research Status
Complete
Summary
The design and construction of temporary military structures has changed little since World War II. While these structures are lightweight and rapidly deployable, they require a sizeable workforce to construct and provide minimal ballistic and blast protection for occupants. Cross-laminated timber (CLT) is a relatively new prefabricated engineered wood product that is strong, stiff, quick to build, and has the potential to offer inherent ballistic and blast resistance compared to traditional wood products. The orthotropic nature of CLT coupled with the energy absorbing capacity of the thick wood panels warrant further investigation into the viability of CLT for temporary military structures. To that end, the research presented in this thesis seeks to better understand the ballistic and blast response of CLT panels and to develop evaluation criteria for the use of CLT in temporary military structures. Specific areas of investigation included: 1) experimental testing of the ballistic resistance of CLT panels, conducting in conjunction with U.S. Army laboratories in Aberdeen Proving Grounds, Maryland and Vicksburg, Mississippi; 2) the design, prototyping, and experimental testing of enhanced CLT panels to further improve ballistic performance; 3) a qualitative analysis of CLT panels under ballistic impact resistance mechanisms; 4) the development of a CLT blast analysis tool to predict the elastic response of CLT to blast loadings; and 5) the development of a simplified tool to identify evaluation criteria for temporary military structure material selection, including conventional materials as well as CLT. Specimens in this research consisted of commercially produced Spruce-Pine-Fir CLT as well as Southern Pine CLT specimens fabricated specifically for this research. Ballistic testing of both types of conventional CLT indicate that the material’s inherent penetration resistance is significantly greater than that of dimension lumber and plywood used in current common temporary military structures. The testing shows that current U.S. military design guidelines (UFC 4-023-07), used for determining required wood thickness based on ballistic threat, under predicts the ballistic performance of CLT. From testing and analysis, the thesis develops updated equations for predicting the thickness of CLT required for ballistic protection. A qualitative analysis of ballistic specimens identified local failure modes in the CLT and links the observed damage the anisotropic material properties, grading, and defects in sawn timbers. Enhanced CLT specimens were fabricated using various hardening materials including thin metal plates and gratings, polymer-based armors, and fiber-reinforced epoxy matrix panels. The enhanced CLTs were evaluated based on ease of production, ballistic resistance as compared to conventional CLT, and cost-benefit analysis. The shear analogy method was incorporated into a single-degree-of-freedom blast analysis to predict the response of different types and sizes of CLT panels under blast loads within the elastic regime. The tool was validated using field data from low-level live blast tests and showed good agreement with the field data. Finally, tailored evaluation criteria for comparative assessment of construction materials for use in temporary military structures – considering issues of cost, the logistics of in-theater deployment, energy consumption and force protection were developed and applied through using the AHP decision-making process.
Online Access
Free
Resource Link
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Fabricated Timber: Vertical Integration of Solid Wood + The Architecture of Manufacturing

https://research.thinkwood.com/en/permalink/catalogue2171
Year of Publication
2019
Topic
Design and Systems
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Miller, Matthew
Publisher
University of Cincinnati, Graduate School
Year of Publication
2019
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Market and Adoption
Keywords
Architecture
Manufacturing
Vertical Integration
Mass Timber
Language
English
Research Status
Complete
Online Access
Free
Resource Link
Less detail

Highlighting the Unique Challenges and Differences of Building with Mass Timber

https://research.thinkwood.com/en/permalink/catalogue2731
Year of Publication
2020
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Author
Richmond, Ryan
Publisher
California Polytechnic State University
Year of Publication
2020
Country of Publication
United States
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Topic
Market and Adoption
Keywords
Construction
Research
Challenges
Language
English
Research Status
Complete
Summary
As the construction industry shifts towards sustainability and owners seek to construct buildings that are sustainable - built from natural and renewable materials, and pleasing for their occupants to work in - mass timber is becoming the popular alternative to traditional steel and concrete buildings. An abundance of information is available on mass timber products and their properties and applications, but little information on the process of actually building a mass timber project. This report seeks to extend practical knowledge on building with mass timber. In order to accomplish this, this research will highlight specific differences and challenges related to building with mass timber; create general guidelines and recommendations for contractors tasked with building a mass timber project; and identify new areas of research. Through interviews with two commercial contractors who have built mass timber projects in the California Bay Area, specific challenges have been identified. These challenges include longer project duration; increased preconstruction time and complexity; difficulties getting timely plan approvals; differing design and material procurement methods; necessity of MEP coordination at the beginning of the jobs; unique transportation, storage, and handling requirements; and different installation procedures and requirements.
Online Access
Free
Resource Link
Less detail

Identifying Mass Timber Research Priorities, Barriers to Adoption and Engineering, Procurement and Construction Challenges In Canada

https://research.thinkwood.com/en/permalink/catalogue2372
Year of Publication
2020
Topic
Market and Adoption
Application
Wood Building Systems
Author
Syed, Taha
Publisher
University of Toronto
Year of Publication
2020
Country of Publication
Canada
Format
Thesis
Application
Wood Building Systems
Topic
Market and Adoption
Keywords
Mass Timber
Barriers
Research Priorities
Challenges
Construction
Engineering
Procurement
Language
English
Research Status
Complete
Summary
Mass timber construction in Canada is in the spotlight and emerging as a sustainable building system that offers an opportunity to optimize the value of every tree harvested and to revitalize a declining forest industry, while providing climate mitigation solutions. Little research has been conducted, however, to identify the mass timber research priorities of end users, barriers to adoption and engineering, procurement and construction challenges in Canada. This study helps bridge these gaps. The study also created an interactive, three-dimensional GIS map displaying mass timber projects across North America, as an attempt to offer a helpful tool to practitioners, researchers and students, and fill a gap in existing knowledge sharing. The study findings, based on a web-based survey of mass timber end users, suggest the need for more research on (a) total project cost comparisons with concrete and steel, (b) hybrid systems and (c) mass timber building construction methods and guidelines. The most important barriers for successful adoption are (a) misconceptions about mass timber with respect to fire and building longevity, (b) high and uncertain insurance premiums, (c) higher cost of mass timber products compared to concrete and steel, and (d) resistance to changing from concrete and steel. In terms of challenges: (a) building code compliance and regulations, (b) design permits and approvals, and (c) insufficient design experts in the market are rated by study participants as the most pressing “engineering” challenge. The top procurement challenges are (a) too few manufactures and suppliers, (b) long distance transportation, and (c) supply and demand gaps. The most important construction challenges are (a) inadequate skilled workforce, (b) inadequate specialized subcontractors, and (c) excessive moisture exposure during construction.
Online Access
Free
Resource Link
Less detail

Investigating the Performance of the Construction Process of an 18-storey Mass Timber Hybrid Building

https://research.thinkwood.com/en/permalink/catalogue1269
Year of Publication
2017
Topic
General Information
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
Hybrid Building Systems
Wood Building Systems

14 records – page 1 of 2.