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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: Cyclically Loaded Concrete Beams with Web Openings
Author(s): Richard S. Pool and Rogerio Lopes
Publication: Journal Proceedings
Appears on pages(s): 757-763
Keywords: beams (supports); cyclic loads; fatigue (materials); finite element method; openings; photoelasticity; reinforced concrete; stress concentration;web reinforcement.
Abstract:A photoelastic study is made on clear polyester beam models with web openings under midspan concentrated loads, with various shapes web openings used to find the shape of opening least prone to stress concentration. These results are corroborated by a finite element study. Full-scale reinforced concrete beams with web openings are subjected to cyclically applied dynamic loads in order to determine their performance. Results of these tests are presented and the relationship of performance versus shape and type of reinforcement is examined.
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