The Central Bus Station Hamburg (ZOB), Germany
The 2006 IABSE Outstanding Structure Award has been conferred to three structures: The Central Bus Station Hamburg, Germany, The Rion-Antirion Bridge; Greece, The Millau Viaduct, France. Professor Manfred A. Hirt, President of IABSE, conferred the Award at the Opening of the IABSE Symposium ‘Structures and Extreme Events’ in Budapest, Hungary on September 13, 2006.
The Award recognises the most remarkable, innovative, creative or otherwise stimulating structures completed within the last few years. It consists of a Plaque to be fixed to the structure and Diplomas for the Structural Engineer, the Architect, the Contractor, and the Owner.
The Central Bus Station, Hamburg, Germany received the Outstanding Structure Award for being a ‘delightful canopy over a bus station with soaring, transparent cantilevers designed to perfection enhancing the urban infrastructure’.
The Central Bus Station was opened in 2003. The unique design of the new roof for the central bus station ZOB is a landmark with its own corporate identity. The radial oriented arrangement of the bus-pockets, as well as a subway tunnel underneath lead to the significant and individual half-moon shaped geometry of the roof. Like a huge boomerang almost 200 m long, the roof hovers above the service buildings and the entire bus-stations.
The roof structure is supported 12 m above ground by a colonnade of slender steel columns, following the curvature of the multi-rib steel shell structure carrying the cantilever beams. Transparent glass panels are fixed underneath the steel purlins spanning between the filigrane cantilevers.
Made of 3400 single splice pieces and 2000 covering sheets, the steel shell acts like a ring beam mainly stressed by axial forces. According to its stress level, the surface geometry decreases smoothly towards the longitudinal edges.