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High Strength High Rise

by Rita Robison, Assoc. Ed.; Civil Engineering�ASCE, New York, NY,


Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 3, Pg. 62-65


Document Type: Feature article

Abstract:

For the sixth time in history, a structure billed as the world's tallest concrete building (over 950 ft) is under construction in Chicago. The contractors describe the structure as a shear wall-frame interacted building. The 110,000 cu yd of concrete in the frame is reinforced steel. Technical advances include a post-tensioned floor system and use of microsilica in the concrete mix to produce very high strengths. From the foundation to the 15th floor, columns are 12,000 psi. The strength decreases to 6,000 psi at the top of the building. Construction methods and design features are described.

Subject Headings: Steel frames | Reinforced concrete | Floors | Construction methods | Concrete structures | Concrete frames | Concrete

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