Strengthening large concrete box-girder bridge on shear
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Détails bibliographiques
| Auteur(s): |
Rob Vergoossen
Henk Sliedrecht Cor Kuilboer |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 22-24 September 2010 | ||||
| Publié dans: | IABSE Symposium Venice 2010 | ||||
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| Page(s): | 318-319 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| Année: | 2010 | ||||
| DOI: | 10.2749/222137810796024736 | ||||
| Abstrait: |
In the Rijkswaterstaat Programme “Widening of the Roads”, the road capacity on the bridges across the Low-Rhine has to be increased. Because of the resulting increase on traffic loads the bridges had to be structural assessed. At the same time a large amount of diagonal cracks in the webs of the twin box-girders were discovered. These shear-like cracks are located near almost every pier of the approach spans. The conclusion of a roughly recalculation was that the capacity on bending and shear was very much insufficient. To prevent brittle collapse of the cantilever at the expansion joints, temporarily piers were situated at these positions. Furthermore extensive in depth structural assessments were performed close before and partly parallel to the contracting process for the strengthening. In a very short period a design for strengthening of the bridges on shear was made. Coming year the bridges are strengthened and the road capacity on the deck is increased. |
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| Mots-clé: |
renforcement
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