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Vidalta Cable-stayed Bridge

 Vidalta Cable-stayed Bridge
Auteur(s): , , ,
Présenté pendant IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014, publié dans , pp. 1926-1931
DOI: 10.2749/222137814814068373
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The Vidalta Bridge is located on the outskirts of Mexico City, in a very deep valley with special conditions, which led to the creation of a unique cable stayed bridge.

Fig. 1. General view...
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Détails bibliographiques

Auteur(s):



Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014
Publié dans:
Page(s): 1926-1931 Nombre total de pages (du PDF): 6
Page(s): 1926-1931
Nombre total de pages (du PDF): 6
Année: 2014
DOI: 10.2749/222137814814068373
Abstrait:

The Vidalta Bridge is located on the outskirts of Mexico City, in a very deep valley with special conditions, which led to the creation of a unique cable stayed bridge.

Fig. 1. General view of the bridge

The total span between the building, where the bridge starts, and the opposite edge of the valley is 240 m, with the possibility of locating a support at 60 m from that first edge, so therefore the bridge is split into two spans of 60 and 180 m. Because of that, the stay tower has been inclined to reduce this difference, splitting the deck in two spans of 161.5 and 78.5 m.

This difference between the two spans has let to the smallest span being heavier by means of using a concrete section, and the another span

lighter with a steel box section, to compensate the forces in the stays and achieve a balance in the tower.

A polygon of forces is created between the different elements of the bridge: towers, stays and deck, which is closed with a diagonal beam joining the foundation with the shorter span’s edge, achieving the global balance of the structure.

This bridge is the recipient of the 2013 Post-tensioning Institute (PTI, USA) award of Excellence.

Mots-clé:
acier béton Pont à haubans

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