Steel Structure Buildings Development Over The World
World steel structure building is developing rapidly in recent years in aspects of height, span, length and modeling. To measure the technology level of construction steel structure, the main figures are span and height. During the last few decades, comparison and competition of construction projects as high-rise buildings, radio and television tower, stadium roof shape goes on in every corner of the world, thus one miracle after another were created in the human architecture history.
People are not satisfied with the existing building height, super high-rise building is the destined call, in the beginning, Chrysler building in New York is built in 1930 at 300 ms high, while actual number is 318.8 meters; The Empire State Building in New York is 381 meters high, built in 1931. The world trade center tower "sisters" is 417 meters high, built in 1969. Chicago's Willis tower is 442 meters high, built in 1974. Shenzhen Diwang building is 383.95 m high, built in 1996; Shanghai Jinmao tower is 403 meters high, built in 1997. Shanghai world financial center, 492 meters high, built in 2007. Taipei 101 tower is 508 meters high, built in 2006. The united Arab emirates " Khalifa tower is 828 meters high, built on January 1, 2010, become the world's tallest building.
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