 | This articlerelies largely or entirely on asingle source. Relevant discussion may be found on thetalk page. Please helpimprove this article byintroducing citations to additional sources. Find sources: "Cantilever spar cable-stayed bridge" – news ·newspapers ·books ·scholar ·JSTOR(June 2025) |
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| Ancestor | Cantilever bridge,cable-stayed bridge |
|---|---|
| Related | Side-spar cable-stayed bridge |
| Descendant | None |
| Carries | Pedestrians,Light Rail |
| Span range | Short to Medium |
| Material | Steel,prestressed concrete |
| Movable | One example can swing |
| Design effort | High |
| Falsework required | No |
Acantilever spar cable-stayed bridge is a modern variation of thecable-stayed bridge.[1] This design has been pioneered by thestructural engineerSantiago Calatrava in 1992 with thePuente del Alamillo in Seville, Spain. In two of his designs the force distribution does not depend solely upon thecantilever action of thespar (pylon); the angle of the spar away from the bridge and the weight distribution in the spar serve to reduce the overturning forces applied to the footing of the spar. In contrast, in his swingingPuente de la Mujer design (2002), the spar reaches toward the cable supported deck and is counterbalanced by a structural tail. In theAssut de l'Or Bridge (2008), the curved backward pylon is back-stayed to concrete counterweights.
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