John Hancock Center Chicago

The John Hancock Center is a landmark skyscraper located in North Michigan in the Gold Coast Area of Chicago in Illinois. It is quite distinctive in the Chicago skyline by its twin antenna masts located on top of the building. It has been considered as one of the most recognizable buildings in the world.

John Hancock Center History

The building was named for the John Hancock Mutual life Insurance Company which developed and was the original tenant of the building. The building was designed and constructed by Skidmore, Owings and Merrill with its chief designer Bruce Graham and structural engineer Fazlur Kahn. The construction period for the skyscraper was from 1965 to 1970. The building was topped up on May 6, 1968 and was then considered as the tallest building in the world outside of New York City.

John Hancock Center Features

The John Hancock Center stands 1,506 feet or 459 meters tall. It contains 100 floors of living and office space. It follows a structural expressionism architectural style and is most distinctive by the use of an X-bracing exterior which is part of its tubular system. It is an architectural technique where the tubular system acts as the building ‘s spine that makes the structure stand upright during wind and earthquakes. The John Hancock Center was the first ever skyscraper that made use of this structural method.

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