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Crossing the Bjørnafjord with a multi-span suspension bridge on floating foundations – Challenges in design

 Crossing the Bjørnafjord with a multi-span suspension bridge on floating foundations – Challenges in design
Autor(en): , ,
Beitrag für IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, veröffentlicht in , S. 1890-1895
DOI: 10.2749/stockholm.2016.1927
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As part of the ferry free E39 project, along the west coast of Norway, eight fjord crossings will be made. This means new technology has to be developed, as the fjords pose a great challenge relate...
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Bibliografische Angaben

Autor(en): (Norwegian Public Roads Administration, Hamar, NORWAY)
(Norwegian Public Roads Administration, Hamar, NORWAY)
(Norwegian Public Roads Administration, Stavanger, NORWAY)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016
Veröffentlicht in:
Seite(n): 1890-1895 Anzahl der Seiten (im PDF): 6
Seite(n): 1890-1895
Anzahl der Seiten (im PDF): 6
Jahr: 2016
DOI: 10.2749/stockholm.2016.1927
Abstrakt:

As part of the ferry free E39 project, along the west coast of Norway, eight fjord crossings will be made. This means new technology has to be developed, as the fjords pose a great challenge related to environmental conditions, ship impact and topography.

This paper gives an overview of the technical challenges foreseen in the design and construction of a multi-span suspension bridge on floating tension legged platform foundations for the crossing of the Bjørnafjord. The crossing is approximately five kilometres wide, and has a depth up to 550 meters. The concept consists of a three-span suspension bridge with two land based towers, and two floaters midfjord.

The suggested solution is multidisciplinary involving structural complexity, aerodynamics and hydrodynamics. Although the bridge components are relatively well understood individually, the interaction between them needs further investigation. In this paper the effects of the components on the whole system are investigated. Different configurations are evaluated, and the interaction between the different components is investigated to understand the effects regarding construction and final design.

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