Project data
Country: Austria
Location: Enns
Application: Walls, ceilings, safety
Construction company: Krückl Baugesellschaft
A new housing development comprising 55 subsidised rental flats is being built on Hoflehnerstraße in Enns. The first phase of construction comprises four blocks of flats with a range of flat sizes, an underground car park, above-ground parking spaces and barrier-free access. In the long term, a comprehensive development comprising around 200 flats in 14 buildings is planned for this site.
Krückl Baugesellschaft was commissioned to carry out the construction project. To construct the walls and ceilings of varying heights, the site team is using around 700 m² of RINGER slab formwork, approximately 1,000 ceiling props and a tailored combination of Stahl Master and Alu Master wall formwork.
RINGER sales representative Michael Steinmaßl maintains close contact with Alois Lindtner, foreman at Krückl Bau, throughout the entire construction phase. The collaboration between the two companies has grown over the course of many successfully completed projects.
This brings tangible benefits on site:
> well-established processes thanks to long-standing collaboration
> short decision-making processes for urgent requirements
> reliable deliveries in line with the progress of the build
> rapid support for last-minute material requirements
Different floor levels
One of the key challenges of the construction project is the complex layout of the four residential blocks. Each building is designed to include a half floor.
As a result, there are three flats on different levels in each building. The basement floors also have varying ceiling heights and were excavated to different depths.
It was therefore not possible to use continuous formwork at a single level. The systems used had to be flexible enough to adapt to the numerous changes in height, wall connections and varying floor plans. To meet these requirements, the RINGER floor formwork system range – comprising large-area DEKplus floor tables and handy AluDEK modular elements – was used.
Clear an area quickly with DEKplus
DEKplus really comes into its own on larger, uniformly structured ceiling surfaces. The ceiling tables used, measuring up to 5,40 × 2,25 m, each cover more than 12 square metres of formwork area. This enables the site team to cover large areas within a short time and with just a few crane lifts, thereby quickly creating the conditions necessary for further work.
The large-format elements also reduce the number of joints and alignment areas required. At the same time, the system’s low profile of just 12 cm offers advantages in terms of transport, storage and site logistics. The small loading volume enables cost-effective delivery and reduces the storage space required on site.
DEKsafe for safe formwork operations
The RINGER DEKsafe side guard rail was used to provide fall protection at the open edges of the slabs. This was attached directly to the DEKplus formwork tables using rail posts. Installation is quick and straightforward. Once locked into place, the rail post is automatically secured against accidental disengagement by a spring.
The DEKsafe side guard rail is then simply hooked into the designated brackets. The system meets the requirements of ÖNORM EN 13374 Class A.
AluDEK for height variations and fitting areas
The closer the ceiling formwork comes to walls, projections or irregular structural areas, the more important it is to have a flexible system. This is where the handy AluDEK elements complement the large-area DEKplus ceiling tables. Using the smaller modular elements, the site team can work their way step by step towards the respective areas requiring a custom fit.
The wide variety of elements allows for rapid adaptation to the remaining areas. Any remaining gaps are closed using AluDEK support rails and conventional formwork panels.
Steel Master and Alu Master – a perfect combination
The wall formwork for this residential construction project is also supplied entirely by RINGER. The site team combines the robust Steel Master with the lightweight Alu Master. The interplay between the two systems allows the most cost-effective solution to be selected for each wall section.
The Steel Master formwork can withstand fresh concrete pressure of up to 80 kN/m² and is ideally suited to large wall surfaces. Its sturdy steel frame construction enables efficient use and high concreting speeds.
Alu Master is used in areas where crane availability is limited or where formwork has to be moved by hand. The aluminium system is designed to withstand fresh concrete pressures of up to 60 kN/m². Its low weight and practical carrying handles make it easier to handle manually and reduce the physical strain on the team.
Working together to keep the project moving forward
The housing development project in Enns demonstrates that rapid construction progress does not depend solely on high-performance formwork elements. Equally important are short decision-making processes, reliable deliveries and points of contact who understand the requirements of the building site.
The foundation for this is the partnership between Krückl and RINGER, which has developed over many years. Together, they plan ahead, react quickly to changes and take responsibility to ensure the project progresses efficiently and smoothly.