New structural frontiers for the self compacting concrete
|
|
|||||||||||
Détails bibliographiques
| Auteur(s): |
Guido Furlanetto
Lucio Ferretti Torricelli |
||||
|---|---|---|---|---|---|
| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007 | ||||
| Publié dans: | IABSE Symposium Weimar 2007 | ||||
|
|||||
| Page(s): | 468-469 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| Année: | 2007 | ||||
| DOI: | 10.2749/weimar.2007.0054 | ||||
| Abstrait: |
The design concept of the Tevere River Bridge is a combination of many construction technologies: pushing deck method, upper concrete arch, steel formwork arch and arch core made by self compacting concrete. After finishing the launching deck process the arch is built using a steel shell internally stiffed by longitudinal and transversal trusses. The arch steel shell formwork is assembled on provisional supports, made by steel trestles, resting on the concrete deck. The concrete core is a self compacting concrete (SCC) because of the workers’ safety as they don’t have to go inside the arch for concreting. This construction system allows us to built bridges with spans longer than 250 m. We can take advantage from the concrete low cost and short construction time combined with an architectural shape, the arch, that is agreeable and proper for the environmental impact (Figure 1). |
||||
| Mots-clé: |
pont en arc
|
||||