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Fazlur Rahman Khan
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Fazlur Rahman Khan was a Bangladeshi-American structural engineer and architect who initiated important structural systems for skyscrapers. Considered the "father of tubular designs" for high-rises, K
FR Khan
FR Khan
A sculpture honoring Fazlur Khan at the Willis Tower
A sculpture honoring Fazlur Khan at the Willis Tower
The John Hancock Center is the world's first mixed use tower. When built, it was the second tallest building in the world. It demonstrated how much mo
The John Hancock Center is the world's first mixed use tower. When built, it was the second tallest building in the world. It demonstrated how much more efficient and feasible building very tall skyscrapers could be in comparison to the older design and technology used by the tallest buildings up to that time.
In 1960, buildings over 20 stories were still newsworthy. Apartments in the John Hancock Center in Chicago – shown here with its distinctive exterior
In 1960, buildings over 20 stories were still newsworthy. Apartments in the John Hancock Center in Chicago – shown here with its distinctive exterior X-bracing – are located as high as the 90th floor.
Willis Tower
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The Willis Tower, formerly known and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot skyscraper in the Loop of Chicago, Illinois, United States. Designed by architect Bruce G
Fazlur Rahman Khan
…father of tubular designs" for high-rises, Khan was also a pioneer in computer-aided design (CAD). He was the designer of the Sears Tower, since renamed Willis Tower, the tallest building in the world from 1973 until 1998, and the 100-story John Hancock Center. A partner in the firm Skidmore, Owings & Merrill in…
The Willis Tower as seen from the west in 2024
The Willis Tower as seen from the west in 2024
The Sears Tower (now the Willis Tower) during its construction in 1973
The Sears Tower (now the Willis Tower) during its construction in 1973
The tower in 1978, after its completion
The tower in 1978, after its completion
The tower at night in 2009
The tower at night in 2009