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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: Influence of Embedded Service Ducts on the Strength of Continuous Reinforced Concrete T-Beams
Author(s): Kenneth T. Burton
Publication: Journal Proceedings
Appears on pages(s): 1327-1344
Keywords: beam, bond strength, code requirements, deflection, embedded service ducts, floor system, reinforced concretet, research, shear strength, T-beam, ultimate strength
Abstract:This paper reports load tests to failure of two wide, shallow T-beams subjected to uniform load over an 18-ft span with a negative restraint moment at one end. The beams were designed in accordance with the requirements of the ACI Building Code (ACI 318-63) for ultimate strength design. They were identical in all respects except that one of the beams had ten 7 x l-3/8-in. ducts spaced at 12-in. centers embedded in the 7-in. T-beam flange, These ducts necessitated respacing and grouping of the shear reinforcement in that beam. Both beams failed in flexure, and the load-carrying capacity was not affected significantly by the embedment of the service ducts in the flange thickness.
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