During their employment in various companies our colleagues were working as project engineers or consultants/technical supporters/software supporters on this project.
The European highway E75 with a total length of 570 km leads from the Baltic coast in the north to the Czech border in the south. The Polish part of the «Autostrade A1», between Gdansk and Torun has been realized and is operated privately within the framework of a BOT project. Near the city Grudziadz the A1 highway is crossing the river Vistula with a cantilevered, structurally demanding bridge. The main span of the bridge is 180 m and the superstructure
of the 400 m long free cantilever bridge was built by 8 cantilever forming traveler at the same time.
Span lengths: 110 – 180 – 110 m, Width of the bridge: 2 x 17.35 m
Detail design: 2008 – 2011, Construction: 2010 – 2011
Bridge Type: Three span pre-stressed concrete bridge over Vistula River with a total length of 400 m. The main girder is a single hollow-box with variable height between 4 and 10.5 m. Maximum cantilever during construction reached up to 94 m.
Erection method: Free balanced cantilever.
Involvement of our Employees: Modelling, static analysis, optimization of tendon scheme, reinforcement design and pre-camber calculation.
Reference: MEICHTRY & WIDMER, DIPL. ING. ETH/SIA AG