In 2019, real estate developer EDGE laid the foundation stone for the new Berlin headquarters of energy company Vattenfall based on designs by renowned architecture firm TCHOBAN VOSS Architekten, creating new structures with pioneering urban sustainability. The new office building, located directly at the Südkreuz Berlin ICE train station, is designed as an open ecosystem with nature-based elements in the form of a modular timber hybrid building and has a total of eight storeys and a spacious, covered atrium.
Timber-steel framework
The impressive roof structure of the atrium, designed as a girder grid with a roof area of over 1,500 square meters, is a mixed construction consisting of a timber-steel framework. In close cooperation with the Allgäu-based family business Biedenkapp Stahlbau and the ETFE foil specialist Temme Obermeier, HESS TIMBER co-developed, produced and supplied the timber components for the roof structure.
The main beams of the 2-axis load-bearing timber-steel truss have a maximum length of 40 meters. The compression chords used in the truss structure were designed as glulam beams of strength class GL 32 h and are also butt-jointed at the junctions and connected to the adjacent steel structure using multi-section bar dowel connections.
