Increase Appaloosa, Spiez

The project
An initial review revealed that most of the existing foundations did not have sufficient load-bearing capacity. Likewise, the live loads from the floors above could not be transferred via the existing flat roof. However, the existing building was already about to reopen after a reconstruction, so foundation reinforcements had to be calculated and installed quickly. At the same time, some kind of support steel members had to be installed in the existing flat roof, which could take the new loads from above. Likewise, the ceiling above the restaurant had to meet all sound and fire protection requirements.

The construction method
After a thorough discussion, it was realized that a completely new building had to be erected above the existing flat roof. Unfortunately, the planned apartment partition walls were nowhere near the specified column grid, so the roof and ceiling loads had to be transferred into the existing columns via various trusses. These trusses had to be installed in the walls in such a way that all sound and fire protection requirements between the apartments could still be met. This was achieved by a one-piece basic construction and a complete decoupling of the facing shells.