New addition to the Vienna skyline: Reaching heights of 174 metres with PERI Systems

• DC Tower 2 in Vienna, reaching 174 meters, will feature modern office spaces, rental flats, and a sustainable facade with integrated photovoltaic elements.

• PERI Systems, known for their formwork and scaffolding solutions, are integral to the construction, having previously contributed to DC Tower 1.

• The project utilizes MAXIMO Panel Formwork, SKYDECK Panel Slab Formwork, and SRU Shaft Platform for efficient and energy-saving construction up to the sixth floor.

• The RCS Rail Climbing System and a 36-meter radius concrete distributor enable a rapid 5-day cycle per floor for the building's core.

• The PERI UP Scaffolding System and PROKIT Safety System ensure high safety standards and efficient workflow on the construction site.

• Continuous on-site support and detailed planning by PERI facilitated smooth and rapid construction progress, meeting high safety and quality standards.

A new architectural highlight will grace the Vienna skyline: DC Tower 2 is growing upwards at a rapid pace. Having already impressed with its proven formwork and scaffolding solutions during the construction of DC Tower 1, PERI is also playing a key role in the execution of this project. With a planned total height of 174 metres, DC Tower 2 will have a lasting impact on the cityscape.

When it is completed in 2026, DC Tower 2 will make a striking architectural statement, setting itself apart from the neighbouring buildings. Originally planned as a twin tower to DC Tower 1, the design was revised on the recommendation of the Urban Planning Advisory Board. Above a base section comprising catering and co-working areas, modern, flexibly configurable office space of around 980 m² per floor is being developed across 30 floors. Starting at a height of 102 metres, 314 rental flats with wraparound loggias will be built, thereby adding to the high quality of life in the urban area. A notable highlight is the sustainable facade design with integrated photovoltaic elements – a first in European high-rise construction that will make an important contribution to the building’s energy efficiency.

Involved from the outset: PERI Systems for bespoke requirements

Proven PERI Systems were in use as early as the initial phase of the high-rise construction project: Up to the sixth floor, the building was constructed in the conventional manner due to the solid steel components in the wing walls. The tried-and-tested MAXIMO Panel Formwork, the versatile SKYDECK Panel Slab Formwork and the SRU Shaft Platform were all used. Thanks to the easy-to-handle, lightweight system components, the walls and slabs could be formed in a straightforward, energy-saving manner, with minimal manpower requirements.

Hitting the heights quickly with PERI Climbing Systems

The RCS Rail Climbing System was installed in the core of the building for the remainder of the construction process. This facilitated an efficient 5-day cycle per floor – a decisive factor in the team’s ability to meet the ambitious schedule. A concrete distributor with a radius of 36 metres assisted with the continuous supply of concrete to the core, slabs and columns.

To optimise processes, the building core was divided into four work areas. The climbing formwork with enclosed concreting platform that was deployed made it possible to work safely even with reinforcement heights of over two and a half storeys. The MAXIMO Panel Formwork, which was precisely adjusted with the aid of a carriage, ensured fast shuttering times. In addition, the RCS P Climbing Protection Panel offered comprehensive protection against fall hazards, wind and falling objects.

All climbing platforms and enclosure elements were delivered pre-assembled in order to minimise the final assembly time on the construction site. A passenger and material lift with a load capacity of two tonnes was successfully deployed and enabled the transport of materials and personnel to up to six storeys. The process of moving resources hydraulically to the next construction section went smoothly. The combined passenger and material lift is equipped with safety features such as automatic locks and ergonomic operating elements and can be easily integrated on the construction site.

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Project support during construction

The modular PERI UP Scaffolding System proved to be a success. It was not only used for daily activities such as reinforcement, shuttering and concreting, but also impressed with its high level of safety: the seamless decking surfaces enabled work on the formwork to be carried out safely. In addition, the fall edges were safeguarded with the quick-fit PROKIT Safety System.

Thanks to the well thought-out combination of PERI Systems, it was possible to adhere to the tight schedule and meet the high safety and quality standards. A contact person was available to advise the construction site team throughout the entire project. An experienced chief erector was also on site to oversee the final assembly process. The intensive, detailed planning and on-site support facilitated rapid construction progress in many respects.

“From the very outset, the collaboration was excellent. We were totally satisfied, both with the technical development and with the service on site.” Othmar Laister, Senior Site Manager, Porr AG.