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:
ions and Load Factors,” regarding treatment of load combinations involving the OBE when the OBE is set equal to one-third or less of the SSE, consistent with 10 CFR Part 50, Appendix S. • An upper limit on design yield strength of reinforcement was increased from 60,000 psi (420 MPa) to 80,000 psi (550 MPa). (CC-3422.1, CC-3521.1.3) • An additional multiplication factor of 1.2 specified for development length of Grade 75 to Grade 80 reinforcement. (CC-3532.1.7) • Material, design, and qualification provisions were added for use of mechanical anchorage devices for reinforcement end anchorage (mechanically headed deformed bars in tension) for reinforcement with specified yield strength not exceeding 60,000 psi (420 MPa) and bar size not larger than #11. The addition provides an equation for calculating development length for such bars in tension and defines the critical section for development length. (CC-2311, CC-3532.1.2, CC-3532.4, CC-4333) • Specific conditions are stated under which intentional twisting of prestressing tendons composed of multiple elements stressed simultaneously as a group may be waived. (CC-4432.5) • Slip test and slip acceptance criteria are added as part of the performance tests required to qualify mechanical splices and mechanically headed deformed bar systems for use. (CC-4433.2.3(c)) Consistent with the NRC’s commitment to the use of industry consensus codes and standards for the design, construction, and licensing of commercial nuclear power reactor facilities, this guide describes methods that the NRC staff considers acceptable for the materials, design (including loads and load combinations), fabrication, construction, examination, and testing of reinforced and prestressed concrete containments in the context of the 2019 Edition of the Code. The NRC staff has evaluated the provisions contained in Articles CC-1000 through CC-6000 of the Code. This RG endorses Articles CC-1000 through CC-6000 of the Code with the exceptions