![]() ![]() Two more opposite corner tubes terminate at a slightly higher floor, two more end with the 91st floor, and two tubes extend to the full height. All nine tubes reach up through the 49th floor, where three terminate. Almost all of them are situated in Downtown, a district that has an area of only about 1 km. The plan consists of a square bundle of 9 square tubes, each 75 feet on a side. Sears Tower is the landmark of Chicagos skyscrapers. p56.ġ450 feet tall (1468 or 1470 feet by some sources) about 100 feet taller than the World Trade Center twin towers.ġ10 stories (109 stories by some sources)Ĥ.4 million square feet second in office space area only to the Pentagon The Sears Tower itself is much like the idea behind San Gimignano, but unlike most tall buildings in New York, it is a tower of the people, not the palace of a bank." Sears is very direct in its structural solution, a new concept of cluster tubes, originally fifteen, reduced to nine when the hotel was eliminated from the plan. The Willis Tower, formerly known as the Sears Tower, is a 108-story skyscraper in Chicago, Illinois. So the Sears Tower, one more mountain, was created for this city on the plains. 6 En el momento de su inauguración, fue el edificio más alto del mundo durante veinte años. Towers have historically been not only the pride of their temporary owners, but of their cities as well. La Torre Willis (en inglés, Willis Tower), conocida anteriormente como Torre Sears, es un rascacielos de 442 metros en Chicago, Illinois. A system of double-deck express elevators provides effective vertical transportation, carrying passengers to either of two skylobbies where transfer to single local elevators serving individual floors occurs." ![]() Floor sizes are then reduced by eliminating 75 x 75 foot increments at varying levels as the tower rises. The building plan consists of nine 75 x 75 foot column-free squares at the base. The Sears Merchandise Building Tower was erected on South Homan Avenue in the Chicago neighborhood of Lawndale, four miles due west of where its successor would eventually break ground. The configuration incorporates the unusually large office floors necessary to Sears' operation along with a variety of smaller floors. The stepback geometry of the 110-story tower was developed in response to the interior space requirements of Sears, Roebuck and Company. "The Sears Tower the world's tallest building. ![]()
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