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

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


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.

Date: 12/1/1965

Abstract:
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.