Danube Tower – engineering between history, innovation, and art
The Danube Tower is much more than a Vienna landmark – it is a symbol of the combination of technical precision, architectural vision, and timeless engineering. Opened in 1964 as Austria’s tallest building, the work of architect Hannes Lintl and structural engineer Robert Krapfenbauer became a milestone in modern architecture.
In the course of the general renovation – planned by architect Gregor Eichinger of “eichinger offices” – the tower not only underwent a design renewal, but also comprehensive technical development. Our tasks included structural design, building physics, fire protection planning, and acting as test engineer in accordance with WBO—all with the goal of making the building functional, safe, and future-proof.
Fire compartments were redesigned, escape routes optimized, and structural safety brought up to date, creating a harmonious interplay between historical substance, modern use, and engineering responsibility.
With artist Carsten Höller’s spectacular 165-meter-high slide, the tower also gained a new international highlight in 2023—art and technology merge here to create a unique experience.
How can a balance between preservation and progress be maintained when renovating technical icons?
📍 Danube Tower, Vienna
🏛 Architecture General renovation: “eichinger offices”
👥 Client: DONAUTURM Liegenschaftsverwaltungsgesellschaft m.b.H.; “DONAUTURM” Aussichtsturm- und Restaurantbetriebsgesellschaft m.b.H.
🛠 Our contribution: Structural engineering · Building physics · Fire protection planning · Test engineer · Building logbook
📸 Photos: © Daniel Hinterramskogler / © R. Fasching, K. Patzak, A. Stöger
