Tube (structure)
In structural engineering, the tube is a system where a building is designed to act like a hollow cylinder to give it more support. This system was created by Fazlur Khan while at the architectural firm Skidmore, Owings & Merrill (SOM), in their Chicago office.[1]
The first example of the tube’s use is the Plaza on DeWitt, in Chicago, Illinois.[2]
Tube (structure) Media
The World Trade Center's Twin Towers were some of the first structures to use a framed tube design. The many columns of the tube can be seen around the exterior of this horizontal cross section. The towers had a core for services, seen in the center. The design was not tube-in-tube since the core had 47 columns spaced relatively evenly, rather than around the edge of the core.
Breakdown of the bundled tube structure of the Willis Tower with simplified floor plans.
Willis Tower, finished in 1973, introduced the bundled tube structural design and was the world's tallest building until 1998
to show how structure varies through height. It is to show evolution of skyscrapers structural design. It is to visually show how the structural design evolves as greater heights are reached. Thanks to fazlur rahman khan
References
- ↑ Weingardt, Richard (2005). Engineering Legends. ASCE Publications. p. 76. ISBN 978-0-7844-0801-8.
- ↑ Beedle, Lynn S.; Council on Tall Buildings and Urban Habitat (1986). Advances in tall buildings. Van Nostrand Reinhold Company. p. 149. ISBN 978-0-442-21599-6.
