Upgrading of Existing Bridges with CFRP Prestressing System – Recent Polish Experience
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Détails bibliographiques
| Auteur(s): |
B. Piątek
P. Siwowska T. Siwowski |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Synergy of Culture and Civil Engineering – History and Challenges, Wrocław, Poland, 7-9 October 2020 | ||||
| Publié dans: | IABSE Symposium Wroclaw 2020 | ||||
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| Page(s): | 1093-1100 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| Année: | 2020 | ||||
| DOI: | 10.2749/wroclaw.2020.1093 | ||||
| Abstrait: |
The paper presents a recent Polish experience of applications of strengthening bridges using prestressed CFRP strips. Within the framework of the domestic R&D project the new CFRP prestressing system has been developed at the RUT in cooperation with the Tines Composites, Poland. The system relies on patented steel anchors (CFRP plate end is simultaneously bonded and bolted inside special steel pockets) that are attached to the substructure with high-strength bolts or anchors, following prestressing the strip with a relevant tensioning device. In the scope of the R&D study the actual RC and steel bridges proof tests before and after the strengthening were also carried out. The results of the bridge testing proved the strengthening efficiency. Moreover, the paper presents another case studies revealed the effectiveness of the new prestressing system, which seems to be reliable and easy to use for bridge applications. |
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