Structural Engineering of the 600 m Chicago Spire
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Bibliographic Details
| Author(s): |
Richard Tomasetti
Joseph Burns Tom Scarangello Dave McLean Garret Browne Nicholas Steele |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008 | ||||
| Published in: | IABSE Congress Chicago 2008 | ||||
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| Page(s): | 138-139 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2008 | ||||
| DOI: | 10.2749/222137908796292029 | ||||
| Abstract: |
The Chicago Spire has a very innovative structural system that is a true integration of architecture and engineering. The spiral shape of the tower is ideal for improved wind performance and the composite structural frame has optimized the use of a concrete core and steel framing for one of the most significant tall buildings of this century. A unique circular outrigger system, that does not require thru core struts, and the use of high strength concrete all contribute to the feasibility of this future landmark. The engineering analysis included a sequential construction analysis of the building with time dependent material properties to account for the effects of elastic shortening, creep and shrinkage of the concrete. |
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| Keywords: |
creep and shrinkage high strength concrete High-rise outriggers shortening
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