Bells Under Bellsby Clyde Baker, Jr., (M.ASCE), Sr. Principal Engr.; STS Consultants, Northbrook, IL,
Stephen A. Bucher, (M.ASCE), Sr. Project Engr.; STS Consultants Ltd, Northbrook, IL,
Serial Information: Civil Engineering—ASCE, 1989, Vol. 59, Issue 12, Pg. 66-67
Document Type: Feature article
Abstract: Chicago's newest office tower is supported on new bells that had to be constructed below existing belled caissons. Existing caisson foundations from a previous structure on the site complicated design and construction of the AT&T Corporate Center, a 60 story high rise in Chicago's Loop. So did the footings of a 10 story structure located along one of the property lines. The composite construction office tower was topped out in 1988 but completion of the interior office and commercial areas is still underway. The superstructure of the tower is a perimeter reinforced concrete framed tube with interior structural steel gravity core columns and composite floor framing.
Subject Headings: Commercial buildings | Chicago | Composite structures | Footings | Reinforced concrete | Steel | Steel columns | Towers |
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