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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: Hoop Tension Loss and Elastic
Shortening in Concrete Stave Silos
Author(s): Harold S. Kleywegt and Jan C. Jofriet
Publication: Concrete International
Appears on pages(s): 28-30
Keywords: circular prestressing; prestressed con-crete;
prestress loss; silos.
Abstract:Concrete stave silos are prestressed by external steel hooping. The tension in the silo hoops is subject to loss of prestress due to friction, elastic shortening, creep, and shrinkage. This paper deals with the elastic shortening loss of prestress. Experimental results obtained from a 4.9 m (16 ft) x 3.8 m (12.5 ft) high stave silo were considerably greater than would be expected in a homogeneous structure. An analytical model for predicting elastic shortening loss is proposed. Recommendations for reducing elastic shortening loss are provided. [Authors]
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