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Development of a Slab-on-Girder Wood-Concrete Composite Highway Bridge

https://research.thinkwood.com/en/permalink/catalogue1421
Year of Publication
2012
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Lehan, Andrew
Organization
University of Toronto
Year of Publication
2012
Country of Publication
Canada
Format
Thesis
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Design and Systems
Keywords
Ultra-High-Performance Fibre-Reinforced Concrete
Girder
Post-Tensioning
Prefabrication
Durability
Span-to-Depth Ratio
Language
English
Research Status
Complete
Summary
This thesis examines the development of a superstructure for a slab-on-girder wood-concrete composite highway bridge. Wood-concrete composite bridges have existed since the 1930's. Historically, they have been limited to spans of less than 10 m. Renewed research interest over the past two decades has shown great potential for longer span capabilities. Through composite action and suitable detailing, improvements in strength, stiffness, and durability can be achieved versus conventional wood bridges. The bridge makes use of a slender ultra-high performance fibre-reinforced concrete (UHPFRC) deck made partially-composite in longitudinal bending with glued-laminated wood girders. Longitudinal external unbonded post-tensioning is utilized to increase span capabilities. Prefabrication using double-T modules minimizes the need for cast-in-place concrete on-site. Durability is realized through the highly impermeable deck slab that protects the girders from moisture. Results show that the system can span up to 30 m while achieving span-to-depth ratios equivalent or better than competing slab-on-girder bridges.
Online Access
Free
Resource Link
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Long-term Testing of Prefabricated Timber-Steel-Concrete Ribbed Decks

https://research.thinkwood.com/en/permalink/catalogue2083
Year of Publication
2018
Topic
Serviceability
Material
Steel-Timber Composite
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans

Ontario Wood Bridge Reference Guide

https://research.thinkwood.com/en/permalink/catalogue2132
Year of Publication
2017
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans

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
Less detail