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The Willis Tower, originally and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot (442.3 m) skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM), it opened in 1973 as the world's tallest ...
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 ...
Another notable SOM engineer is Bill Baker, who is best known as the engineer of Burj Khalifa (Dubai, 2010), the world's tallest man-made structure. To support the tower's record heights and slim footprint, he developed the "buttressed core" [62] structural system, consisting of a hexagonal core reinforced by three buttresses that form a Y shape.
The Sears, Roebuck and Company Complex is a building complex in the community area of North Lawndale in Chicago, Illinois.The complex hosted most of department-store chain Sears' mail order operations between 1906 and 1993, and it also served as Sears' corporate headquarters until 1973, when the Sears Tower was completed.
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 ...
Among his most notable buildings are the Inland Steel Building, the Willis Tower (formerly the Sears Tower), and the John Hancock Center. [1] He was also responsible for planning the Broadgate and Canary Wharf developments in London. [2] [3] [4] Architectural historian Franz Schulze called him "the Burnham of his generation." [1] He was a 1993 ...
Lever House, 390 Park Avenue, Manhattan Manufacturers Trust Company Building at 510 Fifth Avenue, Manhattan Willis Tower, formerly known as the Sears Tower, in Chicago 7 World Trade Center, New York City Shaklee Terraces, San Francisco, completed 1979 with a flush aluminum and glass facade and rounded corners.
English: This diagram shows height to tip of the tallest structural elements in each building. If measured from the ground to the highest attached component, the Burj Khalifa is the tallest in the world, followed by the Willis Tower (formerly Sears Tower), but as the antennas are not actually structural; they aren't considered part of the building, and the Willis Tower building itself is ...