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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > 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.
Title: Evaluation of the ACI Code Equations for Ultimate Strength Design of Columns
Author(s): Noel J. Everard
Publication: Journal Proceedings
Appears on pages(s): 963-976
Keywords: code requirements, column, computer, evaluation, ultimate strength
Abstract:The basic assumptions stated in the 1963 ACI Code are used with specific locations of the neutral axis for spirally reinforced columns and tied columns to accurately calculate the corresponding values of P, M, and the eccentricity e. The values of e/f are then used in the ACI Code equations to predict the approximate values of P,. The exact values of P, are compared with the values predicted by the Code equations to ascertain the error of the latter for the given conditions. The computer solutions used by the author to prepare design charts for ACI Committee 340 are also compared to the exact solutions and it is shown that the differences are negligible. The related computer programs are therefore shown to be satisfactory for use as a means of evaluating the ACI Code equations. This study marks the beginning of an effort to establish the limits of applicability of the Code equations, and to attempt to devise correction factors which will extend the range of usefulness of the Code equations.
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