Effects of Column Creep and Shrinkage in Tall Structures-Analysis for Differential Shortening of Columns and Field Observation of Structures

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Title: Effects of Column Creep and Shrinkage in Tall Structures-Analysis for Differential Shortening of Columns and Field Observation of Structures

Author(s): Mark Fintel and Fazlur R. Khan

Publication: Special Publication

Volume: 27

Issue:

Appears on pages(s): 95-120

Keywords: columns (supports); concrete slabs; creep properities; differential shortening; field tests; frames; high-rise building; loads (forces); moments; multistory buildings; reinforced concrete; settlement (structural); shear properties; shearwalls; shrinkage

Date: 1/1/1971

Abstract:
A procedure is presented to analyze frames of multistory structures for the structural effects of differential elastic and inelastic shortening between adjacent columns or walls..Results are presented of a 6 1/2 year observation of elastic plus creep and shrinkage strains of a number of columns and walls in the second story of a 38 story building. The measured strains are compared with the analytically computed and found to be in acceptable agreement.