The Structural Systems oF Tall Buildings - Tall Buildings: Structural Systems and Aerodynamic Form - page 34

• the 56-storey, 259m high Commerzbank Tower (Frankfurt, 1997) ( Figure 3.23 ),
which has 6 mega composite shear walls having cross-sections of approximately
1.2×7.5 m
• the 72-storey, 367m high Bank of China Tower (Hong Kong, 1990) ( Figure 3.71 ),
which has 4 composite mega columns with hexagonal cross-sections at the ground
floor that are approximately 3.50m on their two longest sides. Considering the
function and appearance, the structural system of the Bank of China Tower is catego-
rized as space truss system by Ali and Armstrong (1995) and Ali and Moon (2007).
Composite mega column
(2.5x2.5m at the ground floor)
&
-42.5m
Figure 3.22 The Center, Hong Kong, China, 1998
(photos courtesy of Derek Forbes)