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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: Incremental Loading of Reinforced Lightweight Concrete Columns
Author(s): Donal W. Pfeifer and Eivind Hognestad
Publication: Special Publication
Appears on pages(s): 35-46
Keywords: age; columns (supports); compressive strength; creep properties; drying shrinkage; expanded shale aggregatees; high-rise buildings; lightweight aggregate concretes; loading rate; loads (forces); modulus of elasticity; plain concrete; reinforced concrete
Abstract:Tests were made at the Portland Cement Association Laboratories regarding the elastic and time-dependedt shortening of reinforced lightweight concrete columns which were fabricated and loaded to simulate construction conditions encountered in a 50-story concrete building 714 ft (218 m) tall. The measured data from these incrementally loaded columns show low creep when the load is applied at a realistic rate. A 3-year field investigation of the actual structure will be undertaken and comparision between laboratory and field data will be made. Such comparisions wil provide data toward developing improved design concepts for ultra-high-rise concrete buildings.
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