Joint construction - New Medical Clinic

The new "Gelenkbau" building at Tübingen University Hospital is intended to be a flagship project for resource-conserving and energy-efficient construction in hospital buildings. The supporting structure should combine sufficient flexibility with the requirement to reduce gray energy in the best possible way. To this end, the sloping and partially underground base storeys are designed as reinforced concrete structures. The three upper floors, which are used for nursing care, are planned as a timber-concrete composite construction. A particularly exciting task was to make the three fingers/cantilevers with a projection of up to 20 m as rigid as possible while at the same time saving on materials.

On the façade side, these cantilever arms have 3-storey lattice girders and a 3-storey reinforced concrete box girder on the inside. The differences in stiffness are compensated for by couplings. In addition, Tübingen is located in earthquake zone 3, which places corresponding demands and difficulties on the bracing. The weight reduction of the upper storeys through the timber-concrete hybrid construction brings significant advantages here and leads to savings in concrete and reinforcing steel in the base storeys and the foundation.