A contemporary structural masterpiece
Described by the client as a “structural masterpiece”, visualisations of the building already foreshadowed the gigantic dimensions of the atrium in the planning stage. To bring to life this spectacular glass courtyard with its floating terrace landscape, the number of columns was reduced in the atrium doubling the typical structure span from 8 to 16m.
Our structural engineers designed a 1,325-ton heavy steel transfer structure on the top floor to carry the loads of the five floors above the atrium hanging from it and transferring them to the primary column grid. The transfer structure was optimised by the introduction of diagonal struts in the transfer level to reduce the effective span of the transfer beams.
Eye-catching glazed façade
Arup also designed the supporting frame structure for the atrium’s striking glazed façade, working in close collaboration with OMA to define the geometry of the triangular glass panels of the honeycombed grid shell. For the sub-structure of the facade, we developed a space frame grid shell made of hollow steel profiles that resist wind and gravity loads.