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Essay / Research Paper Abstract
This 4-page paper examines the structural aspects of the Sears Tower in Chicago, Illinois, including the foundation, steel and weight. Bibliography lists 6 sources.
Page Count:
4 pages (~225 words per page)
File: D0_MTseatow.rtf
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Unformatted sample text from the term paper:
building in the world, the structures stands approximately 1,454 feet high (1,808, including the twin antenna towers on top) (Greiner, 2003). Incidentally, there continues to be some question as to
whether the Sears Tower remains the tallest building, but that is for another paper. Located in downtown Chicago on Wacker Drive, The
building offers approximately 4.5 million square feet of floor space, with the average sway of the building being approximately six inches from the true center (Greiner, 2003). The combined weight
of the building is 445 million pounds - 222 million tons (Greiner, 2003). The building, which opened in 1973, took three years to build at a cost of $150 million
(Greiner, 2003). When completed and opened, the building was taller than its cross-town rival, the John Hancock building. One maintenance problem of
the building has been automated - the building as six roof-mounted robotic window washing machines that clean approximately 16,100 windows (Greiner, 2003).
Although not much is available on the actual foundation of this building (and how much concrete was needed to create it or the special challenges inherent in developing a building
of this size and weight), one can assume from the sheer size and weight of the building that a special concrete mixture would have needed to be created, with H-beams
pounded deep both into the structure and into the bedrock below the buildings structure. Given that the building weighs several hundred tons, its likely steel braces would have been essential
in order to prevent the building and its surroundings from sinking into the ground. As well see later, settlement monitoring is an important factor when it comes to large tower
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