Timber-concrete composite bridges: Three case studies
During the last years, timber-concrete composite (TCC) structures have been extensively used in Europe both in new and existing buildings. Generally speaking, a composite structure combines the advantages of both materials employed: the strength and stiffness of the concrete in compression and the tensile strength, lightweight, low embodied energy, and aesthetical appearance of the timber. The concrete slab provides protection of the timber beams from direct contact with water, which is crucial to ensure the durability of the timber beams, particularly when used for bridges. Different types of connectors can be used to provide force exchange between the concrete slab and the timber beam. The choice of a structurally effective yet cheap shear connection between the concrete topping and the timber joist is crucial to make the TCC structures a viable solution that can compete with reinforced concrete and steel structures. In this paper, the possibilities offered by TCC structures for short-span bridge decks are discussed. The technology of TCC structures and the general design rules are illustrated. Three case studies are reported, including a short-span bridge tested in Colorado, USA, with the timber layer being constructed from recycled utility poles and notch connection; a TCC bridge with glulam beams and triangular notches with epoxy-glued rebar connectors built in Portugal; and a TCC bridge with glulam beams and rectangular notches built in Germany. All the solutions were found to be structurally effective and aesthetically pleasing. They can all provide a sustainable option for short-span bridges.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/20957564
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Supplemental Notes:
- © 2018 Periodical Offices of Chang'an University. Publishing services by Elsevier B.V. on behalf of Owner. Abstract reprinted with permission of Elsevier.
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Authors:
- Fragiacomo, Massimo
- Gregori, Amedeo
- Xue, Junqing
- Demartino, Cristoforo
- Toso, Matteo
- Publication Date: 2018
Language
- English
Media Info
- Media Type: Web
- Features: Figures; Photos; References;
- Pagination: pp 429-438
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Serial:
- Journal of Traffic and Transportation Engineering (English Edition)
- Volume: 5
- Issue Number: 6
- Publisher: Elsevier
- ISSN: 2095-7564
- Serial URL: http://www.journals.elsevier.com/journal-of-traffic-and-transportation-engineering-english-edition
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Bridges; Case studies; Composite structures; Concrete construction; Design; Timber construction
- Subject Areas: Bridges and other structures; Highways; Materials;
Filing Info
- Accession Number: 01685878
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 20 2018 10:17AM