A series of V-shaped concrete columns line critical points along the perimeter of the building at the
ground floor level. These support the edges of the star segments
above, which project beyond the footprint of the base.
They are roughly 5.6 m in height, and the two legs of each
V have cross-sectional dimensions of approximately 500 by
500 mm at the top. The cross section at the base of the V is
approximately 1,100 by 500 mm. The bottoms of the Vs are
located underground and are connected by buried concrete
footings, explained Olsen.