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Full scale test of structures strengthened with CFRP: strengthening of a railroad bridge
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0001-7799-5809
2001 (English)In: ACUN-3: International Composites Conference on Technology Convergence in Composites Applications, International Federation for the Theory of Machines and Mechanisms , 2001, p. 54-66Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a full-scale test on a railway bridge located in the northern part of Sweden. The reason why the bridge needed to be strengthened was insufficient bearing capacity due to increased loads on the railroad system. The problem was mainly low moment bearing capacity in the bridge cross direction. A total of 3200 meter of carbon fibre sheets with the width of 0.3 meter was applied to the bottom face of the bridge. A comprehensive testing program was formed for the bridge. Strains and deformations were measured before and after strengthening. The measurements from the test program showed that the bridge stiffness increased by approximately 15%. This means that the method works in fall scale and can be an economic way to extend the life of concrete railroad bridges. To investigate the influence of change in humidity over time due to the tight composite layer, measurements over at least one year will be undertaken. Up to now the preliminary results show no effects of raised humidity under the composite layer.

Place, publisher, year, edition, pages
International Federation for the Theory of Machines and Mechanisms , 2001. p. 54-66
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-32895Local ID: 78a8b680-9e95-11db-8975-000ea68e967bISBN: 0-7334-0791-9 (print)OAI: oai:DiVA.org:ltu-32895DiVA, id: diva2:1006129
Conference
ACUN-3: International Composites Conference on Technology Convergence in Composites Applications : 05/02/2001 - 09/02/2001
Note
Godkänd; 2001; 20070105 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-03-20Bibliographically approved

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Täljsten, Björn

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf