The overall project consists of a new double-track railway (13.6km) with a train station adjacent to the urban area of Skoppum. It includes rock tunnels, 1 cut and cover concrete tunnel, 17km of roads (permanent and temporary), 3 bridges and 1 train station. The entire area of the project is constituted mainly of clay and the new alignment has been designed for a maximum speed of 250km/h and will cut 5 minutes from journey times between Drammen and Eidanger.
Degree of Freedom, subconsultant of Systra SWS, provided the detailed design of three new bridges of the new railway line Vestfoldbanen including:
– Bridge K960: a 77 meters long and 12 meters wide railway bridge that includes three spans, two of them with a length of 24 meters and another with a length of 29 meters. The bridge consists of a concrete post-tensioned deck made with two girders with a height of 2m, bearing onto concrete piers and abutments. The foundations are made with footings directly founded onto rock.
– Bridge K940: a 50 meters long and 30 meters wide railway bridge that includes three spans, two of them with a length of 15 meters and another with a length of 20 meters. The bridge consists of a 600mm thick concrete slab and five extradosed girders with a height of 1,8m, bearing onto concrete piers and abutments. The foundations are made with footings directly founded onto rock.
– Bridge K955: a 110 meters long and 5 meters wide pedestrian bridge. It includes six spans, four spans of 20 meters and two spans of 15 meters. The bridge consists of a concrete girder with a height of 0,85m, bearing onto concrete piers and abutments. The foundations are made with pilecaps with eight steel core piles reaching rock surface.
Bridge design and structural engineering during detailed design. BIM model LOD400, liaison with the third part checker and the client along the approval process. Technical assistance during constructionon, as-built documentation.