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TRB’s National Cooperative Highway Research Program (NCHRP) Report 679: Design of Concrete Structures Using High-Strength Steel Reinforcement evaulates the existing American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications relevant to the use of high-strength reinforcing steel and other grades of reinforcing steel having no discernible yield plateau.

The report also includes recommended language to the AASHTO LRFD Bridge Design Specifications that will permit the use of high-strength reinforcing steel with specified yield strengths not greater than 100 ksi.

The Appendixes to NCHRP Report 679 were published online and include the following:

APPENDIX A—Material Properties

APPENDIX B—Flexural Resistance of Members with Reinforcing Bars Lacking Well- Defined Yield Plateau

APPENDIX C—Strain Limits for Tension-Controlled/Compression-Controlled and Strains to Allow Negative Moment Redistribution

APPENDIX D—Flexure Beam Tests

APPENDIX E—Fatigue of High-Strength Reinforcing Steel

APPENDIX F—Shear Beam Tests

APPENDIX G—Analytical Studies of Columns

APPENDIX H—Beam Splice Tests

APPENDIX I—Crack Control

APPENDIX J—Survey Results

APPENDIX K—Design Examples

APPENDIX L—Proposed Changes to Section 5 of the AASHTO LRFD Specification

APPENDIX M—2010 AASHTO Bridge Committee Agenda Item

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2011. Design of Concrete Structures Using High-Strength Steel Reinforcement. Washington, DC: The National Academies Press. https://doi.org/10.17226/14496.

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Publication Info

72 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/14496

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