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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 Stress-Strain Curve of Concrete in Flexure Using Method of Least Squares
Author(s): Reginald G. Smith and Cornelius O. Oragun
Publication: Journal Proceedings
Appears on pages(s): 553-559
Keywords: beams (supports) ; computers; concretes; flexural strength; least squares method;moment- curvature relationship;moments;prestressed concrete; reinforced concrete;statically indeterminate structures;stress-strain diagram;structural analysis.
Abstract:An analysis is developed for the determination of the compressive stress-strain curve of concrete in flexure. The method is based on using a "least squares" fit of a polynomial expression to experimental data from reinforced stressed is shown or pre-concrete beam tests. It that the method gives better correlation with experimentally measured moments than the finite difference analysis and can be easily adapted to the computer.
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