Time Dependent Deformations in a 70 Story Structure


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Title: Time Dependent Deformations in a 70 Story Structure

Author(s): Donald W. Pfeifer, Donald D. Magura, Henry G. Russell, and W.G. Corley

Publication: Special Publication

Volume: 27


Appears on pages(s): 159-186

Keywords: age; columns (supports); concretes; creep propertities; creep tests; deformation; differential shortening; drying shrinkage; field tests; Lake Point Tower; measuring instruments; moist curing; plain concrete; reinforced concrete; research; shearwalls

Date: 1/1/1971

This report describes field and laboratory tests to determine instantaneous and time dependent deformations of the concrete columns and core walls in a 70 story reinforced concrete structure. These columns and core walls have different diameters and thicknesses over the height of the structure and are made with four different concretes.