Turin-Fréjus Highway Bridges, Italy
Abstract:The construction of a 70 km highway linking Turin, Italy, through the Fréjus Tunnel to Lyon, France, required a considerable number of bridges and viaducts through the Susa Valley at the foot of the Alps. In a large section of the highway, the contractor adopted a single structural solution for both bridges and viaducts using box-section precast units assembled by cantilevering. Spans were also standardized: 100 m long in areas that were most difficult to reach and where the piers were up to 92 m high; 60 m in the adjoining area; and 40 m in flat areas. The overall structural design was inspired by the limit states method. This paper describes bridge and viaduct construction in relation to span length and pier dimensions.
Document Type: Research Article
Publication date: 1997-02-01
Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.
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