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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: Design Trends for Concrete Bridge Piers
Author(s): R. W. Poston, M. Diaz, and J. E. Breen
Publication: Journal Proceedings
Appears on pages(s): 14-20
Keywords: bending; biaxial loads; bridge piers: building codes; columns (supports); creep properties; deflection; reinforced concrete; reviews; slenderness ratio; strength; structural analysis; structural design.
Abstract:This paper summarizes the results from a state-of-the-art survey concerning usage and design needs for slender concrete bridge piers. The survey reveals increasing use of slender compression members, concerns for biaxial bending effects in piers, and occasional use of non-uniform shapes such as tapered, flared, and stepped compression members. To simplify the analysis and design of these type of piers, comprehensive computer programs were developed and are described in a companion paper. This paper also addresses some of the concerns expressed by survey respondents by providing a brief review and suggestions for improvements in present AASHTO approximate slender concrete compression member analysis procedures. Improvements to both the moment magnifier method and stability index procedure are made.
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