New railway overpass over the river Steinach: Installation is proceeding successfully
In the middle of May the assembly of the new railway overpass over the Steinach in Balingen has started. First of all a supporting structure was assembled on which the newly manufactured bridge sections could be placed and welded. After the carriageway slabs were placed on the support structure as the first components, the two large trussed slabs were lifted in. Assembly was not easy here because the 44-metre long trusses had to be delivered backwards under the old railway bridge. This proved to be a big problem due to the low clearance height: The trucks could not pass completely under the bridge. The solution was to lift the long trusses under the old existing bridge using a 700 tonne crane. The crane thus unloaded the trucks, placed the components next to the support structure, erected them and lifted the 64-tonne trusses onto the support structure. A great deal of sensitivity was required here, as the railway traffic on the existing bridge was not stopped during this time.
After this assembly phase, support structure was completed and then the smaller trusses were lifted in. Currently, the entire bridge is being welded and the corrosion protection is being completed. The work is proceeding according to schedule.
Following the steel construction work, the client will dismantle the old existing bridge and will move the new bridge to its final position.