23/10/2019 The Submerged Floating Tube Bridge: Advantages of a new reality Arianna Minoretti, Chief Engineer Norwegian Public Roads Administration Teknologidagene 23rd October 2019
23/10/2019
The Submerged Floating Tube Bridge:Advantages of a new reality
Arianna Minoretti, Chief Engineer
Norwegian Public Roads Administration
Teknologidagene
23rd October 2019
The Submerged Floating Tube Bridge
23/10/2019
SFTB for the Sulafjord, Statens vegvesen
Fiord Lenght (km) Depth (m)
Halsafjorden 2 5-600
Julsundet 1.6 5-600
Romsdalsfjorden 13 330
Sulafjorden 3.8 500
Vartdalsfjorden 2.1 600
Nordfjorden 1.4 500
Sognefjorden 3.7 1250
Bjørnafjorden 5 5-600
Langenuen 1.3 500
Boknafjorden 27 390
E39 – Statens vegvesen
The E39 fjord crossing project – 2013 (NTP)
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Digernessundet
The Submerged Floating Tube Bridge
23/10/2019
SFTB with tethers – Statens vegvesenSFTB with pontoons – Statens vegvesen
The Submerged Floating Tube Bridge
23/10/2019
Scheme for possible crossings, A.W.Solerød – Statens vegvesen
The Submerged Floating Tube Bridge
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The Submerged Floating Tube Bridge
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1984 Como1998 Høgsfjord
2000 Lugano1999 Storfjord
1969 Messina1979 Eidfjord
1947 Karmsund
…..
The Submerged Floating Tube Bridge
23/10/2019
Statpipe (Statoil) – F.Selmer AS
1982 Kårstø, Norway
The Submerged Floating Tube Bridge
23/10/2019
Name: Year:
Söderströmstunneln 2015
Location: Country:
Stockholm Sweden
Total length [m]: Water depth [m]: Tube OD [m]:
300 - -
Span lengths [m]:Horizontal alignment: Elevation [m]:
107,5 max - -
Characteristics:
Cross section, concrete casting afloat and longitudinal section - Trafikverket
Subsea tunnel realized as a continuous tube supported on discrete pile foundations, with a static behaviour like the one of an SFTB on column support
The Submerged Floating Tube Bridge
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The Submerged Floating Tube Bridge
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Dr.techn Olav Olsen as
The Submerged Floating Tube Bridge
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Marine operations– Statens vegvesen
Trygve Olsen - 1923
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2019The SFTB
International guidelines
Madrid September 2019
The Submerged Floating Tube Bridge
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The advantages of the SFTB
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Bjørnafjorden – Solstrand Hotel & Bad
The advantages of the SFTB
23/10/2019
Feasibil ity study for the Bjørnafjord – Statens vegvesen
The advantages of the SFTB
23/10/2019
Atlantic Ocean Road – Fjord Norway.com
Wave load with water depth (normalized) for the Bjørnafjord study–
Statens vegvesen
The advantages of the SFTB
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Bergens Tidende – March 2014
The advantages of the SFTB
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•Choice of materials: concrete vs
steel
•Concrete mix
•Design of ballast system
•Accessibility of every element
•Provisions for destructive testing
•Selection of fire protection
MINIMUM MAINTENANCE
The advantages of the SFTB
23/10/2019
Contractor costs by main cost items (50-percentile) – Fib guidelines WG 1.2.2
The advantages of the SFTB
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Lago di Garda – Bresciatourism.it
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Statens vegvesen – study for the SFTB in Bjørnafjord
«All risiko må derfor vurderes reelt, ikke ut fra det enkle prinsipp at det uvante er farlig, det kjente er trygt»
Erik Ødegård Statens vegvesen, 1947