Assessment of bridges on the Swiss national roads
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Détails bibliographiques
| Auteur(s): |
Kristian Schellenberg
Michel Chèvre Manuel Alvarez |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013 | ||||
| Publié dans: | IABSE Conference, Rotterdam, May 2013 | ||||
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| Page(s): | 476-477 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| Année: | 2013 | ||||
| DOI: | 10.2749/222137813806521162 | ||||
| Abstrait: |
A main strategic goal in the assessment of the existing Swiss national road net is to provide a high level of availability and to reduce the traffic interference originated by constructions or repairs. Therefore, renovation works tend to be executed in larger maintenance sections, for which the complete infrastructure is repaired in order to ensure a period of 15 years without additional construction work. Before 2008, the existing bridges were maintained individually under the responsibility of local cantonal administrations. Entering into the new maintenance cycle requires a careful assessment of the structural conditions. Visual inspections and laboratory testing programs are required in order to reach a homogeneous level of the structural condition and fulfilling all standards as far as costs are not disproportional to the benefits. The structural safety is evaluated according to the new Swiss code for existing structures, SIA 269, which was published in 2011. For typical short span bridges and overpasses from the early 1970's, which represent the largest number of existing objects, focus has to be set on the shear verifications of slabs without stirrups as well as on bending capacity of cantilever slabs. |
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