Search results
Results from the WOW.Com Content Network
The structure was known as the Sears Tower from its construction until the naming rights were included in a 2009 lease with the Willis Group. Local area residents still refer to the building by its old name. [6] As of April 2018, the building's largest tenant is United Airlines, which occupies around 20 floors.
He was the designer of the Sears Tower, since renamed Willis Tower, the tallest building in the world from 1973 until 1998, and the 100-story John Hancock Center. A partner in the firm Skidmore, Owings & Merrill in Chicago, Khan, more than any other individual, ushered in a renaissance in skyscraper construction during the second half of the ...
By 1963, a new structural system of framed tubes had appeared in skyscraper design and construction. Fazlur Rahman Khan, a structural engineer from Bangladesh (then called East Pakistan) who worked at Skidmore, Owings & Merrill, defined the framed tube structure as "a three dimensional space structure composed of three, four, or possibly more frames, braced frames, or shear walls, joined at or ...
Read Fast Facts from CNN about Willis Tower, formerly the Sears Tower, located in Chicago. ... Structural height - 1,450 feet or 110 floors. Height with the two antennas - 1,730 feet.
By Herbert Lash NEW YORK -- Blackstone Group (BX) agreed Monday to buy the Willis Tower, the former Sears Tower that for 25 years was the world's largest building, in a deal that features an ...
For premium support please call: 800-290-4726 more ways to reach us
Dimetric projections of bundled tube structure of the Willis (Sears) Tower and simplified floor plans, by CMG Lee. Width: 100%: Height: 100%
[2] [3] Sears Tower was the tallest building in the world upon its completion, and remained the tallest building in the United States until May 10, 2013. [4] The second, third, and fourth-tallest buildings in Chicago are the Trump International Hotel & Tower, St Regis Chicago, and the Aon Center, respectively. Of the ten tallest buildings in ...