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:
in its specific design application, the NRC staff will evaluate it on a case-by-case basis during the licensing action review process. The applicant should include in the application results of tests, analytical studies, and structural performance evaluations to sufficiently support the adequacy of its use of high-strength reinforcement and inputs to design in the context of Division 2 code provisions. Combination of different grades of reinforcement (e.g., normal- (or low-) strength and high-strength rebar) in design for a given limit state in any structural section is not allowed, and installation of high-strength reinforcement should be confirmed independently during the construction phases. d. CC-3532 Reinforcing Steel Splicing and Development Mechanical devices for end anchorage and mechanical splices of reinforcing bars should be qualified by testing to be capable of developing at least (the specified minimum tensile strength) and 125 percent of the actual yield strength of the bar (fy_actual) such that fy <= fy_actual <= fy+18, ksi [fy + 125, MPa]. The actual yield strength of the bars for sister splices or production splices may be determined from certified material test reports as an average value of the same bar size and same heat of reinforcing steel that is used in construction. e. CC-3900 Design Criteria for Impulse Loadings and Missile Impact (1) Whereas CC-3900 applies to the containment structure and liner directly affected by the impactive and impulsive loadings, shock and vibratory effects on the functionality of DG-1372, Page 19 attached safety-related components at or at points away from the location of impact should also be considered. (2) For cases where impact could occur at any location on the containment structure, impact locations considered should be such that the shear demand and flexural demand are maximized. (3) Where rigorous nonlinear dynamic time history analysis is used in the design for impulse or impact loadings, the input