Marchetti Viaduct - Design and assembling of a bowstring arch bridge with a span of 250m
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Bibliographic Details
| Author(s): |
Pierangelo Pistoletti
(SETECO Ingegneria S.r.l., Genova, Italy)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 2323-2330 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.2314 | ||||
| Abstract: |
This paper presents the Marchetti Viaduct, the most important structure in the new link between the motorways A5 Torino – Quincinetto and A4/A5 Ivrea – Santhià. It is a bowstring arch bridge 250m long and 41.1m wide, with a maximum distance between the arch and the stiffening girder of 52m. Building criteria, performance requirements and the assembly steps that have influenced design and structural choices will be described. In particular, starting with the geometrical properties of the bridge, all the principal structural subjects are analyzed and even the aerodynamic behavior of the section, checked in the Wind Tunnel. Finally, after a brief part about the natural cooling of the structure, the erection method and the monitoring system are described. |
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| Keywords: |
erection wind tunnel single arch natural cooling S460 Steel
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