Title:
Design of Slender Columns Revisited
Author(s):
J. G. Macgregor
Publication:
Structural Journal
Volume:
90
Issue:
3
Appears on pages(s):
302-309
Keywords:
columns (supports); frames; reinforced concrete; stability; structural design; phi; Design
DOI:
10.14359/4237
Date:
5/1/1993
Abstract:
Revisions are proposed to Sections 10.10 and 10.11 of the ACI Building Code to simplify the design of slender columns and to recognize the use of second-order analyses. These changes are undergoing letter ballot in ACI Committee 318 and if accepted will appear in the 1995 ACI Code. Major changes include the listing of a series of EI values for use in second-order frame analyses, a test for sway and nonsway frames, a flat value for stability calculations, new slenderness limits, and the method of combining and magnifying the nonsway and sway moments.