Hålogaland Bridge, Norway
The Hålogaland Bridge is located in Norway. It is a
suspension road bridge with main span 1,145m. The
viaducts, towers and anchorages for main cables are
concrete.
The towers are concrete A-frames. The bridge deck of
the main span is 18.6 wide steel box girder.
Concrete viaducts are 15.4m wide, with 5 piers 12 to
30m tall. The viaduct from Karistranda is 244m and
the viaduct from Øyjord is 152m.
The deck is constructed as a closed steel box with
trapezium-shaped stiffening trusses and transverse
bulkheads in 30 segments. They are transported to
the site using a ship with boxes placed on top of each
other, lifted directly from the ship by floating crane to
their final position and attached to the suspension
hangers. The middle section is installed first, further
installations will be made symmetrically from the
middle. After all 30 segments are lifted to correct
position they will be welded together.
3/2017