The Danube Tower, designed by architect Hannes Lintl according to static calculations by Robert Krapfenbauer, was built as part of the preparations of the Vienna International Garden Show. After around 20 months of construction, the tower was opened on April 16, 1964.
During a change of ownership in 2016, the architectural firm “Eichinger offices” was commissioned with the planning implementation of the general refurbishment.
The existing catering areas in the tower were fitted with new wall and floor coverings. The furniture was completely renewed. Numerous attractions, such as photo terminals and interactive maps of the surrounding area, were installed on the viewing terrace and in the entrance area of the tower. The restaurant area on the first floor has been generously extended to include a low-rise building housing a beer and excursion bar.
In addition to the changes in design, the fire protection and escape route situation were also improved and brought up to a modern standard. Fire compartments were renovated or newly created and spacious escape rout areas were designed ensure that up to 400 people can safely evade.
Europe’s highest slide was put into operation in November 2023. The illuminated work of art by internationally renowned object artist Carsten Höller was installed at a height of 165 meters on the northern outer side of the Danube Tower. For this spectacular attraction, we were commissioned with the fire protection planning and as a test engineer in accordance with the WBO.
The Donauturm, with its impressive height, is classified as a high-rise building exceeding 90 meters. Originally, however, the tower had only a single staircase, which no longer met current technical standards.
The particular challenge was to modernize the staircase to meet current safety requirements while preserving the existing structure, and at the same time to develop an efficient evacuation concept for up to 400 people. This concept relies on the use of the two existing elevator systems as well as targeted support from the fire department, ensuring that evacuation can be carried out within an acceptable timeframe.
