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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: Design and Serviceability of Reinforced Concrete Floor Systems
Author(s): Stephen J. Sopko
Publication: Special Publication
Appears on pages(s): 121-132
Keywords: cracking (fracturing); deflection; floors; loads (forces); reinforced concrete; serviceability; stresses; structural design; Design
Abstract:Reinforced concrete floor systems must be analyzed for deflections to minimize serviceability problems such as excessive deflections. Member depths should be based on serviceability requirements as well as stress, especially when long-term deflection must be considered. The ACI equations for member depth may not always be adequate to prevent excessive long-term deflections of reinforced concrete floor members where heavy sustained loads are present. Two case studies are presented focusing on floor systems which have exhibited excessive deflections. From this investigation and analysis, proper design, detailing, and construction practices will be discussed to minimize serviceability problems. Care must be taken in analyzing and designing floor systems which support heavy sustained loadings or masonry.
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