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Title: Viaduct over the River Ebro on Zaragoza?s Fourth Ring Road

Author(s): Llombart Jaques, J. A.; Revoltós Fort, J.; Fernández, J.

Publication: ACHE

Volume: 61

Issue: 256

Appears on pages(s): 41 - 58

Keywords: Balanced cantilever construction, braces, evolutionary section, external prestressing, river work.


Date: 1/3/2010

The Fourth Ring Road of Zaragoza crosses the River Ebro over a 396 m long viaduct on the stretch between the N-232 road and the A-2 motorway. The deck was constructed using a continuous beam of prestressed concrete divided into 5 spans that measure a maximum of 92 m. The single deck was designed for both roadways with a total width of 26.60 m. In the first phase, the central box girder of the deck was built by the cast-in-situ balanced cantilever method, whereas in the second phase the side cantilevers of the section were constructed using mobile framework that slid over the previously built core.

ACI International Partner, ACHE Spain, International Partner Access

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