Strengthening of box girder bridges with external prestressing - case study for the Langeland Bridge.
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Bibliographic Details
| Author(s): |
Ulrik Sloth Andersen
(Project Director, COWI AS, Denmark)
Rasmus Neigaard Lund Jensen (Specialist, COWI AS, Denmark) Iben Maag (Project Director, Danish Road Directorate, Denmark) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1692-1699 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.1692 | ||||
| Abstract: |
This paper presents the basic principles for strengthening of bridges and other structures through the use of external prestressing. A case study that includes strengthening of the approach spans for the Langeland Bridge in the south-eastern part of Denmark is included. During a recent rehabilitation, corrosion of the post-tensioned tendons was discovered inside the box girders of the bridge. Additional analysis of the extent of the corrosion and a structural assessment was undertaken. Based on this, a strengthening project was carried out, and strengthening with external prestressing is currently being implemented. |
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| Keywords: |
design bridges condition assessment structural assessment strengthening rehabilitation external prestressing structural monitoring inspection corrosion of tendons
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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