Hospital building erected by Glöckle on time using MEVA formwork
Data & Facts
- Construction of a hospital extension, Freudenstadt, Germany
- Bauunternehmung Glöckle Hoch- und Tiefbau GmbH, Schweinfurt, Germany
- MEVA systems
- Engineering and support
- MEVA Schalungs-Systeme GmbH, Haiterbach, Germany
Early stripping with a blow of a hammer
Topping-out ceremony was celebrated after a construction period of only twelve months: The construction of a large extension for 315 beds at the existing hospital in the German town of Freudenstadt was built by the construction company Glöckle using efficient formwork technology – without a hitch and within the agreed time frame.
The new main building with two inner courtyards measures 99 x 69 m and has five storeys. Structurally separated by a double wall, a new annex for psychiatric care with an area of 50 x 46 m and four storeys has been added directly adjacent to the main building. The storeys are 4.20 m high and the slabs 28 cm thick. All the flat roofs are equipped with parapet walls. For the quick erection of the large-format walls, the project team used the high-performance Mammut 350, which with up to 8.75 m² of forming area per panel (350/250), enables the construction work to progress rapidly.
High safety requirements were fulfilled and comfortable working conditions achieved even at heights using the SecuritBasic safety system. Scaffolding brackets were used primarily for staircase core formwork. In addition, safety meshes, stop-end rails and stop-end spindles from MEVA’s FormSet programme as well as EuMax props were frequently used.
The numerous columns were built using the MEVA’s CaroFalt column formwork with access platforms attached. The system enables quick and high concrete placing for cross-sections of 20 to 60 cm, quadratic or rectangular and adaptable in 5 cm increments. As the system is equipped with the alkus all-plastic facing as standard, it is possible to fulfil high architectural-concrete requirements. The closed frame profile made of steel is structurally rigid and hot-dip galvanised with MEVA post-treatment, resulting in a long service life and easy cleaning.
And last but not least, implementation planning for the lift and stairway cores as well as the slab formwork performed in 3D using Revit ensured smooth processes and simplified coordination on the construction site. For BIM², MEVA’s partner for digital formwork planning, this was the first project during which special working areas were tested. This allowed several engineers to work on the model at the same time.
Early stripping with a blow of a hammer
The experienced Glöckle personnel under construction manager Christopher Krauser and foreman Harald Ulmann also had no problems at all forming the slabs using MevaDec. As this system is not bound to a fixed grid pattern due to the free selection of the primary beam orientation, it was possible to simply adapt it to suit the geometry of the building, and fewer compensations were required. MevaDec allows for three slab-forming methods. In Freudenstadt the particularly efficient drop-head-beam-panel method was used for early stripping of the large-format slabs. Only three main components – formwork panels, primary beams and props with drop heads – were employed here. As there are only a small number of parts and no additional tools are required, MevaDec can already be used after a short period of on-the-job training.
Once the concrete had set, the Glöckle workers lowered the primary beams and panels by 19 cm with just a few blows with a hammer, lifted them out and quickly prepared the easy-to-clean material for the next cycle. The props and drop heads remained in place to reshore the poured slab. MevaDec can even be stripped by one single worker. The sum of the benefits results in accelerated construction process, increased flexibility with regard to manpower, reduced on-site material requirements on the construction site, and simplified logistics.
The “new kid on the block” also impresses
The MEVA engineers in Haiterbach also used the close proximity of the project in the spa town in Germany’s Black Forest to prove the performance of its new MevaDec generation: The independent Institut für Zeitwirtschaft und Betriebsberatung Bau (izb) accompanied the forming work during the roofing of the material-handling courtyard on the clinic grounds. On the basis of time measurements performed at this and other construction sites, the izb was able to verify that the new MevaDec generation is the fastest modular slab formwork system with drop head available on the market. Even less weight (the standard panel 160/80 covers almost every requirement and weighs only 16 kg/m²) as well as better handling characteristics through grip openings in the frame profile provide further benefits with regard to energy-saving, safe and quick working practices. That also pleases Glöckle: a follow-on order with the new MevaDec formwork has been agreed.
The MEVA engineers involved also very much enjoyed working on the “smooth-running project.” “The work on the entire construction site proceeded smoothly,” reported applications engineer Aleksej Latuschko. “This was down to the extensive professional expertise of the construction site staff and our formwork.”