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Suspension bridge on floatingfoundations
When is the technology ready?
22.09.2015 Johannes Veie
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IntroductionMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
+ =
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TLP characteristicsMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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SognefjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Tension legged platform (TLP) foundationsMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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BoknafjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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HalsafjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
2 x 1200 m
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BjørnafjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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BjørnafjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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22/09/2015 Teknologidagene 2015
Objectives that apply to the process of designing the bridge:
• Lowering risk and increase the robustness to obtain a high degree of safety in all aspects
• Develop a solution which emphasis good architecture for the surroundings, for travelers and the road as an attraction.
• Lowering costs of construction, maintenance and operation
• Low impact on environment
• Low impact on marine traffic
Conceptual designMultispan suspension bridge on floating foundations
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Multispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
• 5 km wide• Maximum depth of 550 m• Two Land based concrete towers & two floaters (steel/concrete)• Three main spans of 1 385 m
Conceptual design
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BjørnafjordenMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
Single aerodynamic steel box bridge girder. Two main cables with hanger-connection to the deck. Roadway with two lanes in each direction. In addition cycle and pedestrian lane.
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TendonsMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
Lower connector: Tendon pipe made of 1.118 mm * 38 mm steel
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Main cable and hangersMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
Wires with a diameter of 5.96 mm assemble the strands. The main cable is assembled of 94 strands, each consisting of 127 wires
0.725D m=
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Central node / cable locker22/09/2015 Teknologidagene 2015
Multispan suspension bridge on floating foundations
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Tower saddleMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Landing, north sideMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Landing, south sideMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Complete bridgeMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Steel floater alternativeMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Concrete floater alternative with steel towerMultispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
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Multispan suspension bridge on floating foundations
22/09/2015 Teknologidagene 2015
TLP-suspension bridges - when is the technology ready?