Document: NRC Regulatory Guide
Document ID: 3c238fa7-baa2-41c1-ac85-868fcda6b038
Document Type: regulatory_guide
Title: Design Limits, Loading Combinations, Materials, Construction, and Testing of Concrete Containments + HISTORY – HISTORY 07/2020 – DG-1372 , Proposed Revision 4 05/2019 – Periodic Review of Revision 3 – Revise 10/2015 – Periodic Review of Revision 3 – Reviewed with issues identified for future consideration 10/2006 – DG-1159, Proposed Revision 3 Prior to the issuance of DG-1159, RG 1.136 was entitled "Materials, Construction, and Testing of Concrete Containments (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2010/ML20105A215.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.136
CFR Part: 
CFR Title: 

Content:
tensile strength of an individual splice and mechanically headed deformed bar system should not be less than the specified minimum tensile strength (ft) of the reinforcing bar spliced. (3) The average tensile strength of the splices and mechanically headed deformed bars should not be less than of 90 percent of the actual tensile strength (ft_actual) and 125 percent of the actual yield strength of the reinforcing bar spliced, such that fy <= fy_actual <= fy+18, ksi [fy+125, MPa]. DG-1372, Page 20 (4) Each individual test report on the splice and mechanically headed deformed bar system specimen and the unspliced bar specimen should include at least the following information: (a) tensile strength, (b) total elongation, and (c) load-extension curve to the larger of the strain corresponding to 125 percent of actual yield strength and the specified minimum tensile strength. b. In CC-4333.4, “Initial Qualification Tests,” CC-4333.5.4, “Tensile Testing Requirements,” and CC-4334, “Arc Welded Joints” (Mandatory Appendix D2-VIII, paragraph D2-VIII-1520, D2-VIII-1530, and D2-VIII-1540), the tensile strength of each sample shall equal or exceed the specified minimum tensile strength (ft) of the reinforcing bar. c. In CC-4333.5.4, “Tensile Testing Requirements,” and CC-4334, “Arc Welded Joints” (Mandatory Appendix D2-VIII, paragraph D2-VIII-1554), the moving average tensile strength of 15 consecutive samples shall equal or exceed 90 percent of the actual tensile strength (ft) and 125 percent of the actual yield strength (fy_actual) of the reinforcing bar, such that fy <= fy_actual <= fy+18, ksi [fy+125, MPa] and ft <= ft_actual >= 1.25 fy_actual. d. In CC-4333.5.5, “Substandard Tensile Test Results,” and CC-4334, “Arc Welded Joints” (Mandatory Appendix D2-VIII, paragraph D2-VIII-1555), the criteria for failure of tests should be the same strength requirement as in items (b) and (c) above. e. The actual yield strength (fy_actual) of deformed