The Danube Bridge is a suspended bridge featuring a floating construction without visible pillars, crossing the Danube River in Austria. With a total length of 300 m (984 ft) and a width of 22.5 m (74 ft), the project required innovative access and support solutions for the construction of the superstructure above water.
To meet these demands, a modular system solution was developed that combined working platforms, protective scaffolding and structural support functions into a single integrated concept, enabling safe and efficient construction directly over the river.
The key challenge of the Danube Bridge Linz project was the construction of the superstructure without permanent supports or visible pillars in the river. This required large-scale working platforms that could be installed over water while remaining stable, adaptable and safe for personnel and materials.
In addition, the construction method had to minimise material usage and installation time, while allowing for precise alignment and effective bracing of the edge beams and superstructure elements. Limited access from land further increased the importance of pre-assembly and transport by water, demanding a solution that could be assembled off-site and installed efficiently in its final position.
To address these requirements, two 320 m (1,050 ft) long platforms were constructed using the INFRA-KIT modular system. These platforms served simultaneously as working platforms, protective scaffolding and structural support for the edge beams, significantly reducing the need for additional temporary structures.
The platforms were pre-assembled, transported by ship to the bridge location and then installed directly over the Danube River, ensuring fast and safe deployment with minimal disruption. An innovative technical solution was implemented for the construction of the superstructure, combining anchor rods, INFRA-KIT walers and EUROPLUS props for effective bracing.
This approach resulted in a simplified installation process and achieved a material reduction of approximately 50%, while maintaining high safety standards and structural reliability throughout the construction phase.
