• 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.

International Concrete Abstracts Portal


Title: Control of Beam Deflections by Allowable Span-Depth Ratios

Author(s): B. Vijaya Rangan

Publication: Journal Proceedings

Volume: 79

Issue: 5

Appears on pages(s): 372-377

Keywords: beams (supports); deflection; one-way slabs; reinforced concrete;span-depth ratio;serviceability; structural analysis; structural design.

DOI: 10.14359/10914

Date: 9/1/1982

Limitation of long-term deflections is an important consideration in the design of reinforced concrete flexural members. An expression is developed for maxim urn allowable span-depth ratios for reinforced concrete beams and one-way slabs. The derivations are based on Branson’s deflection computation method recommended by ACI 318-77. Both the total deflection as well as the incremental deflection that may occur after attachment of nonstructural elements are limited. Finally, numerical examples are included to illustrate use of the proposed equations.


Please enter this 5 digit unlock code on the web page.