Project: Railway bridge over the Sulzbach valley near Denkendorf south of Stuttgart
Contractor (and Architects): Adam Hörnig GmbH & Co. KG, Aschaffenburg, Germany
Developer: Deutsche Bahn AG (German Rail), Berlin
Formwork Engineering: MEVA Schalungs-Systeme, Germany, Stuttgart branch
High-speed rail traffic in Germany started in 1991 and for over 20 years German Rail has been expanding its network for high- speed travel all over Germany. One of the big current projects is the new high-speed line connecting Stuttgart with the city of Ulm and on to Munich, allowing trains to pass the Swabian Mountains at a speed of 250 km per hour rather than at a mere 70 km on curved rails dating back to the 1850’s.
The new rail line crosses hillside and mountain areas requiring a series of bridges to be built. One of them is the bridge spanning the Sulzbachtal valley at the village of Denkendorf some 50 km south of Stuttgart. The new bridge is 365.40 m long and made of reinforced concrete. It has seven openings with spans ranging from 40.60 to 63.8 metres. The bridge piers are up to 37 m high and have identical cross sections of 5.10 by 2.40 metres. The piers were poured using MEVA Mammut wall formwork. Two panels with heights of 2.50 and 3.0 m were combined for the 5.50 m high cycles. The piers come with a board pattern that was achieved by wooden boards attached to the panels‘ facing. Trapezoidal strips were used for the joints between the cycles. The piers were climbed with the Mammut wall formwork placed on climbing scaffolds KLK 230.
Work on the bridge started in 2012 and the piers were finished on time in late 2013. When the bridge is complete in 2014, another of the many structures is available to speed up train travel in this difficult topographical part of Germany.
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