The Structural Systems oF Tall Buildings - Tall Buildings: Structural Systems and Aerodynamic Form - page 71

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-52.5m

Figure 3.58 Olympia Centre, Chicago, USA, 1986
(photo courtesy of Marshall Gerometta/CTBUH)

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~54m

Figure 3.59 First Canadian Centre, Calgary, Canada, 1982
(photo courtesy of Fiona Spalding-Smith)