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An exclusive, five-storey block of apartments with an underground car park was constructed in the heart of Basle’s banking centre. “With the Drachen-Center project, elastic decoupling of the building was planned, due to the particular location of the apartment block. Following discussion of various technical solutions, full-surface decoupling was carried out using the material Sylomer®, explains Peter G. Trombik, a qualified civil engineer from Schweizer Trombik Ingenieure AG. The disruptive vibrations primarily originate from the shopping centre that is housed on the ground floor, whilst a tramline that runs close to the building exacerbates the problem.

Living area decoupled from vibrations

With the Drachen-Center, the challenge was to ensure that particularly stringent requirements regarding control of structure-borne noise were observed. Working in collaboration with experts from Trombik Ingenieure AG, the specialists at Getzner developed a solution that minimises the secondary airborne noise. Measurements taken after completion of the building confirm that the precisely-tailored vibration isolation complies with the required standards for sound-proofing.