Changes to and Applications of Development and Lap Splice Length Provisions for Bars in Tension (ACI 318-89)

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1993 English Publisher:American Concrete InstituteJournal:ACI Structural Journal, volume 90 (issn: 0889-3241,

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doi: 10.14359/3980

Changes to and Applications of Development and Lap Splice Length Provisions for Bars in Tension (ACI 318-89)

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Abstract

Changes made to the development length provisions to consider confinement effects are examined. The reasons why bars with small cover and with close spacing require longer development and splice lengths are presented. The elimination of the Class C splice is also addressed. Changes in the top bar effect and the introduction of factors for epoxy-coated reinforcing bars are discussed. Sample problems illustrate usage of the new provisions.

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