Modernizing a listed building is always a challenge. Especially when that building is of such huge significance as the pavilion-style seat of the Federal Constitutional Court in Karlsruhe. With its glass and cast aluminum façade, the building located at the center of Karlsruhe’s Baroque cityscape was designed in the 1960s by architect Paul G. R. Baumgarten. bff GmbH Roland Stölzle and Assem Architekten took on the task of finding a happy medium between using new technologies and responding sensitively to the building’s listed status.
To update the building in terms of current fire protection standards, the doors also needed to be replaced. With 125 years’ experience in manufacturing hinges and hinge systems for doors, Simonswerk produced a total of 350 hinge systems for modernizing the inside doors of the building. In creating this customized design the German market leader was inspired by the look of its current hinge systems while simultaneously developing a technically sophisticated solution, which enables the new hinge systems to be mounted directly on the existing frames. The new systems are based on the model VN 5937/160 Compact Planum. Moreover, the selected hinge knuckle is a veritable Atlas, and while just a slim 15 mm in diameter can support a load of up to 160 kg per door leaf. Furthermore, the modern adjustment system enabling the existing frames to be retained was mounted in the door leaves.