Abstract

Limitation of long term deflections is an important consideration in the design of reinforced concrete flexural members. An expression is developed for maximum 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 non structural elements are limited. Finally, numerical examples are included to illustrate use of the proposed equations (a).

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