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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: Allowable Deflections
Author(s): Subcommittee I, ACI Committee 435
Publication: Journal Proceedings
Appears on pages(s): 433-444
Keywords: creep (materials);damping;deflection;modulus of elasticity;reinforced concrete;serviceablity;shrinkage;span-depth ratiostructural analysis;structural design;temperature;vibration.
Abstract:Discusses the factors affecting the deflection of reinforced concrete members and emphasizes the importance of taking them all into consideration for an accurate estimate of deflection. Includes a table with an extensive list of situations requiring deflection limitations. These are based on L/ A ratios and absolute values applied to the total or incremental deflections. Discusses the most significant parameters af-fecting the L/D ratios as an indirect limit on deflections. Presents formulas and graphs for L/D and gives examples for their use. The report is divided into five chapters: Introduction, Computation of Deflections, Allowable Deflections, Allowable Span/Depth Ratios, and Correlation with Actual Building Structures.
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