8 Things You Should Know About Fazlur Khan, Skyscraper Genius

1. Khan was the lead structural engineer on two of the tallest skyscrapers of the 1970s, both found inChicago: the John Hancock Center (1969) and the Sears Tower (1973, now known as the Willis Tower)
2. He didn’t see his first skyscraper in person until he was 21 years old. Born in Dhaka, Bangladesh, the tallest building in his hometown measured only 3 stories.
3. Khan was the first to discover that building a skyscraper in the the shape of a tube could greatly reduce material size and weight. His buildings were supported not by an inner grid of concrete and steel, like the Empire State Building, but by their facades.
4. For the Hancock Center design, Khan introduced SOM to computer modeling techniques for the first time, hiring two programming experts to calculate difficult equations in record time. The engineers left soon after to work on another revolutionary project, Star Wars.
5. To understand how wind and building sway would affect users in the upper floors of his skyscrapers, Khan placed test subjects into a bathtub placed on top of rotating platform designed to mimic the oscillating motion of a Maytag washing machine.
6. His strategy for visualizing structural diagrams bore a striking similarity to method acting: “I put myself in the place of a whole building, feeling every part,” Khan said in an interview with Engineering News-Record. “In my mind I visualize the stresses and twisting a building undergoes.”
7. Khan died of a heart attack in 1982, in Jeddah, Saudi Arabia, where today, construction is underway on the Kingdom Tower, which will become the world’s tallest building upon its completion in 2020.
8. Founded in 2004, The Fazlur Khan Lifetime Achievement Medal is awarded by the Council on Tall Buildings and Urban Habitat for individuals who have “demonstrated excellence in technical design and/or research that has made a significant contribution to a discipline for the design of tall buildings and the built urban environment” throughout their careers.

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