Eine neue 10-MN-Prüfmaschine für großformatige Bauteile

In the Otto-Mohr-Laboratory of the TU Dresden a 10-MN- testing machine was mounted. It serves for testing components with a maximum span width of 15 m, length of 20 m, width of 2.50 m and height of 3.75 m, not exceeding a weight of 120 tons.
The challenge was at the one hand having to build it in a closed hall with running operation and on the other hand the construction itself. Due to bad the building lot a self-contained power transmission was needed. This was achieved by a massive steel frame and a ground beam being completed as a two-sided cantilever. The ground beam is highly pre-stressed and strongly reinforced which called for a self-compacting concrete. Due to the limited space the concreting and pre-stressing of the 275 tons ground beam was done above the foundation pit. After that the beam was lowered into the 4 m deep foundation pit and put onto the machine frame by an elaborated lowering system.