The Structural Systems oF Tall Buildings - Tall Buildings: Structural Systems and Aerodynamic Form - page 78

&.J

46.3m

Exterior
diagonal
brace

Spandrel
beam \

Transfer beam

Reinforced concrete core
(throughout the building height)

Steel mega column
(-6.5 x7m
from ground floor to
transfer beam)

Figure 3.66

Citigroup Center, New York, USA, 1977