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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: Strip Design for Punching Shear
Author(s): S. Alexander
Publication: Special Publication
Appears on pages(s): 161-179
Keywords: columns; punching sher; reinforced concrete; slabs
Abstract:A part from column-slab connections, almost all reinforced concrete connections can be analyzed and designed using plastic strut and tie models. The strut and tie model provides a simple, rational and highly transparent explanation for the flow of forces within a connection. By examining a unique substructure within a column-slab connection, Alexander and Simmonds (1) develop what amounts to a plastic strut and tie model for concentrically loaded connections between interior columns and two-way slabs with orthogonal reinforcement. On the basis for this model, a general design procedure for gravity-loaded column-slab connections has been developed. The resulting design procedure is simple and it handles column-slab connection problems that are not easily analyzed by existing code provisions. This paper outlines the design procedure and the important features of the model upon which it is based. The model is compared both to existing test results in the literature and to the ACI code design procedure. Two design examples are included.
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