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Load Testing and Assessment of a Field Demonstration CLT Bridge

https://research.thinkwood.com/en/permalink/catalogue2570
Topic
Serviceability
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
Bridges and Spans
Organization
South Dakota State University
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
Application
Bridges and Spans
Topic
Serviceability
Market and Adoption
Keywords
Field Measurements
Load Testing
Moisture Content
Visual Inspection
Long-term Performance
Research Status
In Progress
Notes
Project contact is Junwon Seo at South Dakota State University
Summary
Cross-Laminated Timber (CLT) has great potential to promote wood products markets in appropriate transportation structures, particularly bridges on low-volume roads such as rural or forest roads. The project’s goals are to perform field load testing and evaluation of a demonstration CLT bridge on the nation’s low-volume roads and evaluate its long-term performance under in-service loads and environmental exposure. The team will pursue these goals through the following research objectives: 1) Design the demonstration CLT bridge system with design details; 2) Fabricate the designed CLT bridge; 3) Install the fabricated CLT bridge on a roadway in Grand Portage National Monument with Western Wood Structures, Wheeler, Cook County in Minnesota and the National Park Service; and 4) Perform load testing to assess performance of the implemented bridge and monitor its moisture content and field performance through visual inspection for its long-term behavior evaluation.
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Mass Timber Building Science Primer

https://research.thinkwood.com/en/permalink/catalogue2797
Year of Publication
2021
Topic
Design and Systems
Moisture
Fire
Acoustics and Vibration
General Information
Connections
Market and Adoption
Serviceability
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
NLT (Nail-Laminated Timber)
Application
Wood Building Systems
Author
Kesik, Ted
Martin, Rosemary
Organization
Mass Timber Institute
RDH Building Science
Publisher
Mass Timber Institute
Year of Publication
2021
Country of Publication
Canada
Format
Book/Guide
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
NLT (Nail-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Moisture
Fire
Acoustics and Vibration
General Information
Connections
Market and Adoption
Serviceability
Keywords
Mass Timber
Building Science
Language
English
Research Status
Complete
Summary
The development of this primer commenced shortly after the 2018 launch of the Mass Timber Institute (MTI) centered at the University of Toronto. Funding for this publication was generously provided by the Ontario Ministry of Natural Resources and Forestry. Although numerous jurisdictions have established design guides for tall mass timber buildings, architects and engineers often do not have access to the specialized building science knowledge required to deliver well performing mass timber buildings. MTI worked collaboratively with industry, design professionals, academia, researchers and code experts to develop the scope and content of this mass timber building science primer. Although provincially funded, the broader Canadian context underlying this publication was viewed as the most appropriate means of advancing Ontario’s nascent mass timber building industry. This publication also extends beyond Canada and is based on universally applicable principles of building science and how these principles may be used anywhere in all aspects of mass timber building technology. Specifically, these guidelines were developed to guide stakeholders in selecting and implementing appropriate building science practices and protocols to ensure the acceptable life cycle performance of mass timber buildings. It is essential that each representative stakeholder, developer/owner, architect/engineer, supplier, constructor, wood erector, building official, insurer, and facility manager, understand these principles and how to apply them during the design, procurement, construction and in-service phases before embarking on a mass timber building project. When mass timber building technology has enjoyed the same degree of penetration as steel and concrete, this primer will be long outdated and its constituent concepts will have been baked into the training and education of design professionals and all those who fabricate, construct, maintain and manage mass timber buildings. One of the most important reasons this publication was developed was to identify gaps in building science knowledge related to mass timber buildings and hopefully to address these gaps with appropriate research, development and demonstration programs. The mass timber building industry in Canada is still a collection of seedlings that continue to grow and as such they deserve the stewardship of the best available building science knowledge to sustain them until such time as they become a forest that can fend for itself.
Online Access
Free
Resource Link
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