Basic design for a Submerged Floating Tube Bridge across the Digernessundet
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Bibliographic Details
| Author(s): |
Mathias Eidem
(Norwegian Public Roads Administration, Region West, Stavanger, Norway)
Arianna Minoretti (Norwegian Public Roads Administration, Directorate, Trondheim, Norway) Xu Xiang (Norwegian Public Roads Administration, Region West, Stavanger, Norway) Anette Fjeld (Dr. Techn. Olav Olsen, Oslo, Norway) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 3018-3024 | ||||
| Total no. of pages: | 7 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.3018 | ||||
| Abstract: |
This paper describes the basic structural design for a Submerged Floating Tube Bridge (from now on SFTB) across the Digernessund in Norway. The SFTB is proposed as part of a scheme for a new and improved fixed link along the E39 route, across the Bømlafjord in Norway. The existing fixed link consists of a 7.8 km long subsea rock tunnel below the main part of the Bømlafjord, and a 677 m long suspension bridge spanning across the Digernessund, which was too deep for a subsea rock tunnel. The two parts of the link meet at a small island named Føyno. The existing tunnel does not comply with new EU regulations for tunnels due to the high gradient, but an improved tunnel with a SFTB through the Digernessund will solve the problem. The paper will discuss different structural solutions for the SFTB. A possible construction method will also be evaluated. |
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| Keywords: |
design bridges submerged structures
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