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Upgrading the Haparanda Bridge: Unbonded Posttensioning
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-1398-6118
2014 (English)In: Nordic Concrete Research, ISSN 0800-6377, Vol. 50, p. 425-428Article in journal (Refereed) Published
Abstract [en]

The Haparanda Railway Bridge was upgraded for a higher load resistance in the summer of 2012. The slab of the 50 year old bridge was subjected to horizontal posttensioning and the railway administrators could thereby permit higher axle loads, 300 kN instead of the original 250 kN. The strengthening procedure was first examined in a laboratory pilot study and since the results were good, the method was applied on a real bridge. The posttensioning of the Haparanda Bridge reduced the strain in the tensile reinforcement substantially; all strains from a 215 kN/axle train were in fact counteracted.

Place, publisher, year, edition, pages
2014. Vol. 50, p. 425-428
Keyword [en]
Civil engineering and architecture - Building manufacturing engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Byggproduktionsteknik
National Category
Infrastructure Engineering
Research subject
Structural Engineering; Attractive built environment (AERI)
Identifiers
URN: urn:nbn:se:ltu:diva-30733Local ID: 4a5342a7-a2a2-480a-8642-b9c275366a61OAI: oai:DiVA.org:ltu-30733DiVA, id: diva2:1003962
Conference
Nordic Concrete Research Symposia : 13/08/2014 - 15/08/2014
Note
Godkänd; 2014; 20140820 (jonnil); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-03-26Bibliographically approved

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