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Post-tensioning of reinforced concrete trough bridge decks
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-5154-7044
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2012 (English)In: Concrete Structures for Sustainable Community: proceedings of the International FIB Symposium 2012, Stockholm, Sweden, 11 - 14 June 2012 / [ed] Dirch H. Bager; Johan Silfwerbrand, Stockholm: Swedish Concrete Association , 2012, 415-418 p.Conference paper, Published paper (Refereed)
Abstract [en]

All aging structures are affected by different deterioration processes, which might cause a performance decrease, and eventually lack of safety, in the structures. In addition to this the changing infrastructural demands pose the Swedish Transport Administration to increase the load capacity of the railway system which then also includes the bridges. This might be carried out by many different methods where strengthening is one. A particular interesting bridge type to strengthen is the concrete trough bridge and in particular in shear between the transition of the beam and the slab. Methods for flexural strengthening of trough bridges have been tested and documented, but there is a lack of methods for strengthening the bottom slab in shear. This paper presents promising laboratory test results for transversal post tensioning of the bottom slab of a concrete trough bridge specimen, and measurements reveal a vast decrease in reinforcement strains.

Place, publisher, year, edition, pages
Stockholm: Swedish Concrete Association , 2012. 415-418 p.
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-30361Scopus ID: 84883324094Local ID: 423c5cb5-c339-4bbf-a096-4df60a96a572ISBN: 978-91-980098-1-1 (print)OAI: oai:DiVA.org:ltu-30361DiVA: diva2:1003588
Conference
FIB Symposium : Concrete Structures for Sustainable Community 11/06/2012 - 14/06/2012
Note

Godkänd; 2012; 20120614 (jonnil)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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