THE NEW DFB AND ITS ACADEMY

THE PROJECT AND ITS REQUIREMENT

The new DFB and its academy based on the designs of the architectural firm kadawittfeldarchitektur, was completed in 2022. On the site of the former Frankfurt racecourse, nine hectares of building floors have been developed, combining administration and sport. In the course of the new construction, several HVAC systems were to be decoupled in the technical centre. The purpose of this measure is to protect the adjacent building areas against vibrations and secondary airborne noise caused by the HVAC systems.

THE SOLUTION

To solve the vibration issue, the HVAC systems are installed on intermediate foundations resting on vibration isolating Calenberg Cisador 80 elastomeric bearings.
Cisador 80 strips are layed under the intermediate foundations before concreting, with the free areas between the bearings being filled with mineral wool. These areas served as permanent formwork for concreting the foundations on site. With Cisador 80 in 60 mm thickness a tuning frequency of approx. 10 Hz could be achieved.