Document: NUREG-0800
Document ID: 1f4dbda0-7bea-416c-9d89-910450ba3299
Document Type: srp
Title: provide further guidance on the use of OBE.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A377.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
pplicant has met the requirements of Section 50.55a and GDC 1 with respect to ensuring that the containment internal structures are designed, fabricated, erected, constructed, tested, and inspected to quality standards commensurate with the safety function to be performed. 2. The applicant has met the requirements of GDC 2 by designing the containment internal structures to withstand the most severe earthquake that has been established for the site with sufficient margin, as well as the combinations of the effects of normal and accident conditions with the effects of environmental loadings, such as earthquakes and other natural phenomena. 3. The applicant has met the requirements of GDC 4 by ensuring that the design of the containment internal structures is capable of withstanding the dynamic effects associated with missiles, pipe whipping, and discharging fluids. 4. The applicant has met the requirements of GDC 5 by demonstrating that SSCs are not shared between units or that sharing will not impair their ability to perform their intended safety functions. 5. The applicant has met the requirements of GDC 50 by designing the containment internal structures to accommodate, with sufficient margin, the design leakage rate, calculated pressure, and temperature conditions resulting from accident conditions and by ensuring that the design conditions are not exceeded during the full course of the accident condition. In meeting these design requirements, the applicant has used the recommendations of the RGs and industry standards indicated below. The applicant has also performed appropriate analysis to demonstrate that the ultimate capacity of the structures will not be exceeded and to establish the minimum margin of safety for the design. 6. The applicant has met the requirements of 10 CFR Part 50, Appendix B by providing a quality assurance program that includes adequate measures for implementing guidelines relating to structural design. The criteria used in the design,