Document: NUREG-0800
Document ID: 2768345e-44b7-48d8-bfa7-69652aa4faa8
Document Type: srp
Title: CONCRETE CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1319/ML13198A245.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.1
CFR Part: 
CFR Title: 

Content:
trolled release of radioactivity to the environment and to ensure that design conditions important to safety are not exceeded for as long as required for postulated accident conditions. Reinforced and prestressed concrete containments should be designed, constructed, and tested in accordance with ASME Code, Section III, Division 2, Subsection CC, to provide a leak-tight barrier. A typical concrete containment consists of a thick-walled reinforced concrete cylinder and roof dome, with or without prestressing tendons. A steel liner is attached to the inside surface to provide the leak-tight barrier. The liner plate should be thickened around penetrations to compensate for the openings. Steel closure heads and penetrations (e.g., personnel locks, equipment hatches, and mechanical and electrical penetrations) should be designed in accordance with ASME Code, Section III, Division 1, Subsection NE. Seals provided at the penetrations must be designed to maintain containment integrity for design-basis accident conditions, including pressure, temperature, and radiation. Leak-tightness of the containment structure must be tested at regular intervals during the life of the plant in accordance with the provisions of Appendix J to 10 CFR Part 50, as described in SRP Section 6.2.6. This SRP section provides guidance related to methods, including load combinations, acceptance criteria, standards, and codes, to ensure compliance with GDC 16. Meeting these requirements and criteria provides reasonable assurance that an uncontrolled release of radioactivity to the environment will be prevented and that the design conditions of the reactor coolant pressure boundary will be maintained for as long as required. 5. Compliance with GDC 50 requires that the reactor containment structure, including access openings, penetrations, and containment heat removal systems, be designed so that the structure and its internal compartments will have the capability to accommodate, without exceeding the