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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: Flow Hardening Method of Creep Analysis of In Situ Reinforced Concrete Columns
Author(s): R. N. Swamy and P. Arumugasaamy
Publication: Journal Proceedings
Appears on pages(s): 153-160
Keywords: columns (supports); creep properties; creep tests; deformation; drying shrinkage; field tests: multistory buildings; reinforced concrete; strains; stresses, temperature.
Abstract:This paper presents a new method of creep analysis of in situ reinforced concrete columns in service. The prediction of creep is based on a single creep curve obtained on a specimen loaded at 28 days under controlled environment, the known stress history of the columns and correction factors for age at loading, size of member, and percentage of reinforcement. The predicted values are compared with measured strains in several columns of an eight-story reinforced concrete framed structure over a period of 10 years. The field measurements are based on extensive instrumentation of the columnsand the use of a stress meter to monitor the actual loading on the columns. It is shown that the flow hardening method predicts creep, inelastic, and total strains well.
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