Title: Effects of Column Exposure in Tall Structures-Temperature Variations and Their Effects
Author(s): Mark Fintel and Fazlur R. Khan
Publication: Journal Proceedings
Appears on pages(s): 1533-1556
Keywords: condensation control, design, exposed columns, isotherms, lightweight concrete, multistory building, reinforced concrete, temperature, temperature amplitude, temperature gradient.
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.