Above Them Allby Brian Fortner, Contributing Editor;
Serial Information: Civil Engineering—ASCE, 2000, Vol. 70, Issue 3, Pg. 48-51
Document Type: Feature article
Abstract: The design for what would be the next world's tallest building relies on a 1,550 ft (472 m) high concrete core that will give occupants of the top floors of the building unimpeded views - no columns are necessary. Because the downtown Chicago site is a small one, the thin structure being designed by Skidmore, Owings, and Merrill relies on an innovative stayed-mast system and a series of cantilevered spaces to break up the wind and reduce movement in the upper floors.
Subject Headings: Cantilevers | Concrete structures | High-rise buildings | Innovation
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