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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: Bond Action Between Concrete and a Deformed Bar - A New Model
Author(s): D. Z. Yankelevsky
Publication: Journal Proceedings
Appears on pages(s): 154-161
Keywords: bond (concrete to reinforcement); bond stress; models; reinforced
concrete; strains; stresses; structural analysis.
Abstract:A new model for bond action between untracked concrete and a deformed bar is presented. Concrete resistance is provided by a mechanical system which consists of inclined compressive elements, discs normal to the bar axis, and longitudinal tensile members. The kinematics of the system is analyzed, yielding a second order differential equation with the bar tensile force as variable. Stress and strain distributions in the steel bar are solved and results are compared with test data. Good correspondence between measured and calculated strain distributions along a steel bar are found at stresses below 160 MPa (23 ksi).
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