This guide provides recommended requirements to determine tension development and splice lengths for high relative rib area bar reinforcement, which are not in commercial production in the U.S. at the time of publication. When such requirements are applicable for a project, the user may incorporate the information in this guide into a legal document; however, this guide is not an ACI standard and shall not be adopted by reference into legal documents. To assist the user to incorporate the information into a legal document, the relevant portion of the document is written in mandatory language. A commentary to the mandatory language portion is provided for additional information. Commentary provisions begin with an “R,” such as “R1.1.1,” and are shown in italics.
Keywords: bar reinforcement; bar ribs; bond; development length; high relative rib area; lap splice length.
Table of Contents
Chapter 3—Notation and definitions
Chapter 4—Development of high relative rib area bar reinforcement in tension
Chapter 5—Lap splices of high relative rib area bar reinforcement in tension
6.1—Referenced standards and reports
Appendix A—Recommended supplement to ASTM A615/A615M for high relative rib area bars
A.1––Requirements for deformations
A.2––Relative rib area
A.3––Type of steel
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