Tall Building case studies - Tall Buildings: Structural Systems and Aerodynamic Form - page 139

system consisting of steel and composite columns, steel beams and steel braces. The
arrangement of the braces on the perimeter of the looped form building was finalised
as a result of structural analysis ( Figure 4.33 ). The exterior braces are spaced twice as
closely in areas that have high interior forces and are reduced by half in areas with
low interior forces.

Figure 4.33

CCTV Headquarters steel facade grid (Koolhaas and Scheeren, 2005)

Figure 4.34

CCTV Headquarters discontinuous columns (Carroll et al., 2008)