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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: Determination of Effective Length Factors for Slender Concrete Columns
Author(s): John E. Breen, James G. MacGregor, and Edward O. Pfrang
Publication: Journal Proceedings
Appears on pages(s): 669-672
Keywords: building codes;columns (supports);frames;long columns;reinforced concrete; slenderness ratio;structural analysis;structural design.
Abstract:Section 10.11.3 of the 1971 ACI Building Code requires that the effective length factor k for slender concrete columns be determined with due consideration of cracking and reinforcement on relative stiffness. The reasons for this requirement are outlined and a calculation procedure is proposed which results in acceptable accuracy.
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