Degree of Freedom is an international civil and structural engineering practice with offices in Oslo, Valencia, Gdansk and Athens. We design bridges, buildings and special structures, in timber, steel, and concrete. We are architecture oriented and innovative.
The design team of NUNO arkitektur, Multiconsult and Degree of freedom were the competition winners for a new footbridge over the canal in Flekkefjord.
The 54 m long steel bridge crosses the canal in four, almost equal, spans. One central span is a bascule bridge creating a 12m wide clear sailing canal in the open position. The fixed spans have a central box girder with cantilevering ribs below an orthotropic deck. The movable span has an orthotropic deck supported by two slender Y-shaped box girders, on on each side. The Y-shaped frames, consisting of the pylon, deck girder and counterweight, are balanced at the rotation axis. The inclined pylons provide support to the deck girders via five cable stays per Y-frame.
The bridge deck is supported on a single slender concrete-filled steel column at each support except at the rotation axis, where there are two columns.
The mechanical system for opening the bridge is concealed within the base of one of the pylons.
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