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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: Tension Cracking in Columns Under Compression Loads
Author(s): D. J. Carreira
Publication: Special Publication
Appears on pages(s): 163-194
Keywords: cracking in columns; creep; loading history; longitudinal cracks; shrinkage; temperature variations; transverse cracks
Abstract:Reinforced concrete columns under compression loads and under little or no moment may exhibit cracking. Some cracks develop at early ages and others years later under sustained axial loads or no significant loads at all. Flexural cracking may be expected from externally applied loads on columns within the tension-controlled zone in the axial load-moment diagram. However, for columns within the compression-controlled zone of the diagram, cracking is not normally expected to occur under allowable service loads. Concrete shrinkage and creep, temperature variations and loading history cause all these cracks. In this paper, the causes of these cracks are described, analyzed and illustrated with photos of cracked columns. Design and construction recommendations to prevent or reduce these cracks are provided.
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