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Bridge Deterioration Quantification Protocol Using UAV

https://research.thinkwood.com/en/permalink/catalogue1966
Year of Publication
2018
Topic
Serviceability
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Duque, Luis
Seo, Junwon
Wacker, James
Publisher
American Society of Civil Engineers
Year of Publication
2018
Country of Publication
United States
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Serviceability
Keywords
Bridge
Unmanned Aerial Vehicle
UAV
Photogrammetry
Damage
Field Measurements
Pixel
Language
English
Research Status
Complete
Series
Journal of Bridge Engineering
Summary
This paper focuses on evaluating the effectiveness of an unmanned aerial vehicle (UAV) as a supplementary bridge damage quantification tool. For this study, a glued-laminated timber arch bridge in South Dakota was selected, and an UAV was utilized for the bridge damage quantification. A recommended four-stage UAV-enabled bridge damage quantification protocol involving image quality assessment and image-based damage quantification was developed...
Online Access
Free
Resource Link
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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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Performance of Timber-Concrete Portable Bridge with Circular Hollow Section Connectors

https://research.thinkwood.com/en/permalink/catalogue1752
Year of Publication
2016
Topic
Mechanical Properties
Connections
Serviceability
Material
Timber-Concrete Composite
Application
Bridges and Spans
Author
Lacis, Raitis
Ozola, Lilita
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Timber-Concrete Composite
Application
Bridges and Spans
Topic
Mechanical Properties
Connections
Serviceability
Keywords
Prefabricated
Proof-Load Tests
Deflection
Bending Strains
Bending Stresses
Transversal Load Distribution
Dynamic Amplification Factor
Field Measurements
FEM
Circular Hollow Connectors
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4997-5005
Summary
This paper presents the research results of a timber-concrete composite portable bridge according to the tests of full-scale structure. Portable timber-concrete bridges can be used for permanent or temporary locations in rural areas such as forests, agricultural fields, mineral extraction pits, military objects and others. All structural elements of...
Online Access
Free
Resource Link
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