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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: Deep Beam Test Results Compared with Present Building Code Models
Author(s): K. N. Smith and A. S. Vantsiotis
Publication: Journal Proceedings
Appears on pages(s): 280-287
Keywords: beams (supports); building codes; cracking (fracturing); deep beams; failure; loads (forces); rectangular beams; reinforced concrete; reinforcingsteels; shear properties; shear strength; structural design; web reinforcement.
Abstract:A comparison between test data obtained from an experimental investigation of 52 simply supported deep beams and mathematical models employed by present building codes (A CI 318-77 and CAN3- A23.3-77) and proposed revisions by joint ACZ-ASCE Committee 426 is presented. This study .indicated that considerable increase in load-carrying capacity occurs with increasing concrete strength and decreasing shear span-to-effective depth ratio. Although concrete is capable of carrying significantly higher shear in deep beams, comparing test results with other mathematical models indicates that present design codes seem to excessively attribute this excess capacity to the contribution of web reinforcement.
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