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Monitoring of a bridge strengthened with post-installed coiled spring pins
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Trafikverket, Luleå.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering. Ramböll, Luleå.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
2017 (English)In: IABSE Symposium, Vancouver, 2017: Engineering the Future, Zürick: IABSE - International Association for Bridges and Structural Engineering , 2017, 1201-1208 p.Conference paper, Published paper (Refereed)
Abstract [en]

Many existing bridges were not originally designed for the traffic loads and the number of load cycles which they now experience. In order to increase the load capacity of non-composite steel-concrete bridges, post installed shear connectors can be used. This paper describes a field monitoring of a steel-concrete bridge which have been strengthened with post-installed coiled spring pins as shear connectors. During the monitoring, the bridge was loaded with a 31 tonnes truck placed in specific positions while strains were measured in the steel main girders, together with the horizontal slip at the steel-concrete interface. The results indicate that the coiled spring pins prevent the slip and that they can be used for strengthening purpose. It is also observed that the friction in the steel-concrete interface can contribute quite a lot to the composite action, even though that effect cannot be accounted for in the design.

Place, publisher, year, edition, pages
Zürick: IABSE - International Association for Bridges and Structural Engineering , 2017. 1201-1208 p.
Keyword [en]
Shear connector; bridge monitoring; composite bridge; composite action; coiled spring pin; shear studs; bridge strengthening; rehabilitation;
National Category
Infrastructure Engineering Building Technologies
Research subject
Structural Engineering; Steel Structures
Identifiers
URN: urn:nbn:se:ltu:diva-66148ISBN: 978-3-85748-153-6 (electronic)OAI: oai:DiVA.org:ltu-66148DiVA: diva2:1149464
Conference
39th IABSE Symposium, Engineering the Future, Vancouver, Canada, Sept 21-23, 2017
Available from: 2017-10-16 Created: 2017-10-16 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
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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