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Title: Effects of Column Exposure in Tall Structures-Temperature Variations and Their Effects

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

Publication: Journal Proceedings

Volume: 62

Issue: 12

Appears on pages(s): 1533-1556

Keywords: condensation control, design, exposed columns, isotherms, lightweight concrete, multistory building, reinforced concrete, temperature, temperature amplitude, temperature gradient.

DOI: 10.14359/7760

Date: 12/1/1965

A design temperature is recommended for exposed concrete members based on studies of time lag, and attenuation within the member of exterior temperature amplitudes of different cycles. A graphical method is presented for rapid, accurate determination of isotherms, gradients, and average temperatures. Isotherms and gradients are included for typical exposed columns of both normal weight and light-weight concrete. The effects of bowing and length changes of partially exposed columns are discussed.


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