Thread: CHICAGO | 375 East Wacker (Arquitectonica Tower) | 840 FT / 256 M | 76 FLOORS | PRO
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  #41  
Old Posted May 9, 2007, 5:55 PM
Saber925 Saber925 is offline
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Join Date: Jul 2006
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In terms of construction, with the large center opening, would this need to be a steel structure or would concrete be feasible?