Timber Hat

The building is composed of a hall section and a three-story office section. The hall includes cold and warm areas, each providing 18 m of column-free usable space, complemented by integrated storage and office units. All ground-contacting elements, as well as the core, stairwell, and fire wall areas, were constructed in reinforced concrete. The above-ground hall components were realized in timber frame construction. Glulam columns support the roof structure and crane runway, while slender glulam beams span the two-aisle hall as single-span girders and cantilever six meters on one side to form a canopy. Lateral stability is provided by diagonal timber bracing in the façade and roof plane. The three-story office section was also built in timber frame construction. Glulam columns and beams form the primary structural framework, while solid cross-laminated timber (CLT) floors are arranged between the beams and accommodate the building services via an integrated raised-floor system. The floors are connected through a spacious atrium, at the center of which a free-form spiral staircase in steel provides both vertical circulation and a sculptural focal point. Special structural challenges for realizing the building in timber arose from its location in seismic zone 3 and the cantilevered office and hall canopy areas, requiring careful design to ensure load-bearing capacity, serviceability, and vibration performance.