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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: Flexural Cracking Behavior of Pretensioned I- and T-Beams
Author(s): Edward G. Nawy and Julius G. Potyondy
Publication: Journal Proceedings
Appears on pages(s): 355-360
Keywords: beams (supports); crack width and spacing; cracking (fracturing); flexural strength; I-beams; mathematical models; partial prestressing: prestressed concrete; pretensioning; research; strains;stresses; T-beams.
Abstract:Information is limited on the flexural cracking behavior and crack width development of prestressed beams. Twenty-two pretensioned concrete I- and T-beams having a 9-ft span and prestressed with 1/4 in. diameter 7-wire strands are tested to failure and the results analyzed. A cracking hypothesis for prestressed concrete is presented and an expression relating the maximum weighted crack width to the controlling parameters is given.
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