Project data
Country: Austria
Location: Vienna
Application: Walls, ceilings, safety
Construction company: Swietelsky AG
In Vienna’s 3rd district, VILLAGE IM DRITTEN is emerging as one of the city’s most significant inner-city regeneration areas. Covering an area of around 11 ha, a new, mixed-use neighbourhood is taking shape, comprising around 22 building plots, approximately 250,000 m² of gross floor area, a park covering around 2 ha, flats, offices, retail space, local amenities, and educational and childcare facilities.
In the heart of this large-scale development area, Swietelsky AG is constructing a seven-storey building in two phases. The use of a reinforced concrete frame construction, together with the scale of the project, places high demands on scheduling, formwork logistics and system flexibility: large-area slab formwork, beams, single-sided walls, recesses in the floor slab and the challenging underground car park ramp with slab thicknesses of up to 65 cm required high-performance RINGER systems that were precisely coordinated with one another.
“The scale of this construction site was certainly something special. With DEKplus, we were able to make rapid progress on the large floor slabs, whilst AluDEK allowed us to remain flexible in the tight spaces around the edges. It was precisely this combination that helped us enormously in our day-to-day work.”
Leutrim Shala,
Foreman, Swietelsky AG
Ceiling formwork system range: DEKplus & AluDEK
A particular highlight on the construction site was the construction of the large-scale slabs. The DEKplus slab formwork table from RINGER was used for the extensive standard zones.
With table sizes of up to 12,15 m², it enables particularly efficient construction progress on large slab areas. The tables are moved using the extra-flat crane hook, positioned precisely and then set up.
The use of suspension brackets on the formwork tables also made the process considerably simpler. This made it easy to secure the H20 beams in column recesses and to prepare the fitting zones around the columns neatly.The use of suspension brackets on the formwork tables also made the process considerably simpler. This made it easy to secure the H20 beams in column recesses and to prepare the fitting zones around the columns neatly.
Over 2,000 m² of AluDEK formwork installed in a single operation
In the rear, narrower peripheral areas, DEKplus was combined with the easy-to-handle AluDEK modular slab formwork. There, the lightweight aluminium formwork demonstrated its strengths when dealing with fitting surfaces, connections and smaller residual areas.
This also allowed the largest contiguous area, covering over 2,000 m², to be formworked efficiently. Any remaining areas were closed off using AluDEK support rails and formwork panels.
Fall protection with DEKsafe
DEKsafe side protection was used to ensure safe working at the edges of slabs during formwork and reinforcement work. Quick to install, with few components and a low weight, the system integrated seamlessly into the construction site’s workflow.
This meant that not only was the formwork erected quickly, but the fall protection remained safe and efficient too. DEKsafe meets the requirements of ÖNORM EN 13374 Class A, thereby ensuring certified safety.
Underground car park ramp with slab thicknesses of up to 65 cm
The descent into the two-storey underground car park presented a particular challenge. In the ramp area, slab thicknesses of up to 65 cm were combined with sloping surfaces and curved walls. Here, the formwork had to follow the exact contour of the ramp whilst reliably supporting the solid structural elements.
On the two lowest storeys, arched and circular formwork was used for this purpose. This ensured that the radii of the underground car park ramp were executed precisely and connected cleanly to the adjacent structural elements. In addition, robust Steel Master elements provided dimensionally stable solutions for solid wall and edge sections.
Single-sided walls in up to seven cycles
For the single-sided walls, Stahl Master with support trestles proved to be the ideal solution. The wall sections were constructed in seven cycles, at a rate of around 24 running metres per cycle. It was not just square metres that mattered here, but above all stability, precise alignment and a system that remains reliable even under high loads.
This is exactly what Stahl Master is designed for: up to 80 kN/m² of fresh concrete pressure, the highest dimensional stability and maximum robustness for the toughest applications. This enabled the single-sided wall sections to be constructed safely, precisely and at a high cycle rate.
Flexibility was also required for the floor slab. Numerous gaps, varying heights and enormous member thicknesses called for formwork that could accurately accommodate any geometry. Using Stahl Master and support trestles, even these challenging sections were formed efficiently whilst maintaining dimensional stability.
Logistics and flexibility as key success factors
On a construction project of this scale, every cycle and every available time slot for the crane counts. The RINGER rental fleet ensured that additional formwork elements and accessories were available at short notice. Ordered today, in use tomorrow. It was precisely this flexibility that kept the construction work moving forward.
The RINGER extendable platform, or unloading platform, was also used for vertical material handling. It provided valuable temporary storage space directly adjacent to the building.
It also enabled formwork, accessories and building materials to be safely transported to the relevant storeys.
This optimised crane routes, ensured materials were made available more quickly and significantly eased the burden on site logistics.
A project of this scale requires formwork that combines speed, flexibility and reliability. Whether it’s large-scale slab formwork, tight edge areas, massive ramp components, gaps in the floor slab or single-sided walls: the VILLAGE IM DRITTEN project demonstrated just how effectively a coordinated mix of RINGER systems works in practice.