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Influence of detailing on shear in existing concrete viaducts

 Influence of detailing on shear in existing concrete viaducts
Auteur(s): ,
Présenté pendant IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 22-24 September 2010, publié dans , pp. 320-321
DOI: 10.2749/222137810796024691
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For a lot of existing concrete bridges and viaducts a sufficient safety against shear failure can be proved with an in depth structural assessment based on the present design regulations and taking...
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Détails bibliographiques

Auteur(s):

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:
Page(s): 320-321 Nombre total de pages (du PDF): 8
Page(s): 320-321
Nombre total de pages (du PDF): 8
Année: 2010
DOI: 10.2749/222137810796024691
Abstrait:

For a lot of existing concrete bridges and viaducts a sufficient safety against shear failure can be proved with an in depth structural assessment based on the present design regulations and taking into account hidden capacities, such as an increase in strength in time in the actual structure in regard to the design strength. However some structures still have a lower reliability value. As an example of this, in this paper a few bridges and viaducts, on which the road-capacity had to be increased, are presented. It is illustrated that, with the knowledge of today, the detailing of prestressing or reinforcement and changes of cross-sections in these structures causes lower reliability values as designed.

Mots-clé:
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