New Approach for Bridges with Very High Durability
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Bibliografische Angaben
| Autor(en): |
Johannes Berger
Johann Kollegger |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 22-24 September 2010 | ||||
| Veröffentlicht in: | IABSE Symposium Venice 2010 | ||||
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| Seite(n): | 258-259 | ||||
| Anzahl der Seiten (im PDF): | 6 | ||||
| Jahr: | 2010 | ||||
| DOI: | 10.2749/222137810796024457 | ||||
| Abstrakt: |
Tests have demonstrated that the demands on the ultimate limit state and serviceability limit state for structures can be also achieved without reinforcing bars. The durability of a bridge without reinforcing bars depends in this case only on the durability of the concrete since corrosion is no longer a determining factor regarding the lifetime of the structure. The requirements of the serviceability limit state and the ultimate limit state are fulfilled by providing post-tensioning tendons fitted with strands fully encapsulated in plastic ducts and water-tight anchorages. Since the proposed bridge does not contain any steel, which would be endangered by material-dependent corrosion, there is no need for an insulation of the deck consequently there is also no need for the use of a pavement and edge beams. |
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| Stichwörter: |
Dauerhaftigkeit Vorspannung Betonbrücke
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