Four pressure struts in the form of a pyramid are stretched against four nodes in the grid from below, considerably reducing the bending stress on the individual beams. The glazing rests on sealing strips, secured mechanically by a plate from the top and sealed with filling rope and silicon jointing. The entire steel structure is welded. The triangular fields were delivered pre-finished in “ladders”, adjusted on scaffolding with temporary supports, and then tacked and welded after final measurement.
The scaled glass façade connected to the front of the building is a global first. The construction of this elaborate geometry was made possible by designing all the components and units entirely in 3D. The four diamond-shaped glass panels come together in at a node. The panels sitting next to each other form the middle level, while the other two fit into the node from the inside and outside. Invisible, but no less spectacular are the two “façade wings” that are suspended with their sides on the adjacent corners of the building, absorbing the movements of the building.