Empire State Building.ppt1课件

1、Empire State BuildingLIST Basic Information Named by History Design Construction Building structure Architecture FloodlightsBasic information The Empire State Building is a 102-story skyscraper located in Midtown Manhattan, New York City, at the intersection of Fifth Avenue and West 34th Street. . I

2、t has a roof height of 1,250 feet (381 meters), and with its antenna spire included, it stands a total of 1,454 ft (443.2 m) high.Named by Its name is derived from the nickname for New York, the Empire State. It stood as the worlds tallest building for 40 years, from its completion in 1931 until con

3、struction of the World Trade Centers North Tower was completed in 1972. Following the September 11 attacks in 2001, the Empire State Building was again the tallest building in New York (although it was no longer the tallest in the US or the world). It is the real empires building.History The site of

4、 the Empire State Building was first developed as the John Thompson Farm in the late 18th century. At the time, a stream ran across the site, emptying into Sunfish Pond, located a block away. Beginning in the late 19th century, the block was occupied by the Waldorf-Astoria Hotel, frequented by The F

5、our Hundred, the social elite of New York.Design The Empire State Building was designed by William F. Lamb from the architectural firm Shreve, Lamb and Harmon, which produced the building drawings in just two weeks, using its earlier designs for the Reynolds Building in Winston-Salem, North Carolina

6、, and the Carew Tower in Cincinnati, Ohio as a basisConstruction Excavation of the site began on January 22, 1930, and construction on the building itself started symbolically on March 17St. Patricks Day. The project involved 3,400 workers, mostly immigrants from Europe, along with hundreds of Mohaw

7、k iron workers.The building was officially opened on May 1, 1931 in dramatic fashion, when United States President Herbert Hoover turned on the buildings lights with the push of a button from Washington, D.C. Coincidentally, Building structure The building is steel, with a frame structure Frame tube

8、 system, for the construction of high-rise building provides the ideal structure. New York Empire State Building from the frame tube system derived from the tube-in-tube (筒中筒结构), tube bundles （成束筒） and other structural system.Multi-tube system Tube bundles（成束筒） Two or more arranged together into a b

9、undle cylinder(圆筒 ), a tube bundle. Even higher in the tube structure, suitable for the construction height is also higher Jumbo Frame（巨型框架） Using the cylinder as pillars(柱) in each cylinder every few layers between the giant girders（梁） connected by a tube to form a giant and giant beam frame. While

10、 still a skeleton（骨架） form, as beams and columns section size is large, mega frame lateral stiffness than the general framework for much larger, and thus suitable for the construction of the building height is larger than the multi-frame structure .Architecture The Empire State Building rises to 381

11、 meters at the 102nd floor, and including the 62 meters pinnacle（小尖塔）, its full height reaches 1,453 feet. The building has 85 stories of commercial and office space representing 200,500 square meters. It has an indoor and outdoor observation deck on the 86th floor. The Empire State Building cost $41,000,000 to build (equal to roughly $500,000,000 in 2010).Floodlights In 1964, floodlights were added to illuminat