What is Tube (structure)?
[[File:John Hancock Center2.jpg|thumb|[[John Hancock Center]] in [[Chicago]] is known for its tube structure design]] 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.<ref>{{Cite book|title=Engineering Legends|url=https://archive.org/details/engineeringlegen0000wein|first=Richard|last=Weingardt|publisher=[[American Society of Civil Engineers|ASCE Publications]]|year=2005|isbn=978-0-7844-0801-8|page=[https://archive.org/details/engineeringlegen0000wein/page/76 76]}}</ref> The first example of the tube’s use is the [[Plaza on DeWitt]], in [[Chicago]], [[Illinois]].<ref>{{cite book |last1=Beedle |first1=Lynn S. |author2=Council on Tall Buildings and Urban Habitat |title=Advances in tall buildings |url=https://archive.org/details/advancesintallbu0000unse |year=1986 |publisher=Van Nostrand Reinhold Company |isbn=978-0-442-21599-6 |page=[https://archive.org/details/advancesintallbu0000unse/page/149 149] }}</ref> ==References== {{reflist}} {{stub}} [[Category:Architectural elements]]