After dismantling, this formwork was placed on the automatic climbers suspended from the outside of the structure ready to “hitch a ride” up to the next storey. By making it possible to pour walls and floor slabs in one piece, this novel combination gave rise to completely new working and pouring cycles.
Up to 29th floor, the quadratic floor-plan area of 28 x 28 m leaves all options open regarding the room layout. Right in the middle is the building-core(also quadratic) with lift and service shafts, lift foyers and a stairwell. Above the 29th floor, the core is only adjoined by floor on two sides which have a rather smaller quadratic floor plan measuring 22 x 22 m.

Fully automatic

This combination of the Platform SCP and the Automatic Climbers SKE(used for the first time here on the KolnTurm) was then developed in collaboration with the Formwork experts from Doka’s branch an the Automatic Climbing Team. While the self-climbing Platform SCP was used on the shaft core, the automatic climbers were used for forming the steel composite columns on the exterior of the building.
The self-climbing platform not only formed the entire shaft cross-section of the core, but at the same time carried all the formwork and all the working and storage areas. Powerful hydraulic cylinders shifted the entire unit in one single operation. All safety equipment and finishing platforms were lifted along with the work unit. Also used for the first time was the systematic nature of the Dokaflex floor formwork system. When this formwork was struck, it was placed on 2 m wide platforms on the automatic climbers of the external formwork so that it could move up to the next storey, while the quantity, weight and location can always be exactly specifed. Unlike normal climbing-formwork projects, pouring of the storey floors did not ‘trail behind’ construction of the core. Because the wall-formwork elements were suspended from the Doka Platform SCP, the walls and the floor –slab could be formed at the same time and poured one after the other, this doing away with the need for expensive, labour intensive reinforcement conections. One storey every week

A total of 850 m2 of large area formwork TOP 50 was suspended in the quadratic 17 x 17 m layout of the Doka Platform SCP. It only took the chief foreman, a push of a button and a two hour wait to lift the formwork one storey (3.37m), with the aid of six hydraulic cylinders.