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Future Steel Buildings, Business, Page 17

Future Steel Buildings

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7 | Future of Steel Buildings
Talking about skyscrapers automatically brings in mind images of
tall buildings steering through the clouds and reaching the stars.
The term sky scraper was first applied to steel frame buildings
constructed up to 10 floors in the late 19th century.

Today skyscrapers are becoming common in cities where land is
expensive. They provide high ratio of floor space per unit area of
land. They not only give utilization of space but also are a symbol
of a city's economic power.

The list of super tall towers is headed by Burj Al Khalifa (Dubai).
This 160 floored building stands over 828m. Empire State
Building was the first to have over 100 storeys.

Other tall towers include PETRONAS Twin Towers (Kuala
Lumpur), Taipei 101 and Willis Tower in Chicago.

The Idea of skyscrapers dates back to the first iron frame glass
curtain walled office building in 1864. It was only 5 floors.
Towards the end of 19th century, skyscrapers began to emerge in
Chicago, London and Melbourne.

In the early 1960's, structural engineer Fazlur Khan realized that
rigid steel frame is not the only system for tall buildings. This gave
the innovation in skyscraper design and construction.

The tube structural system including framed tube trussed tube
and bundled tube systems were introduced. This technique
allowed skyscrapers to have different shapes from the traditional
box shape.