Document: NUREG-0800
Document ID: 26053215-041e-4e8b-bf75-0b689de87efb
Document Type: srp
Title: -14
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1404/ML14043A231.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
Revision 3 – April 2014 IV. EVALUATION FINDINGS The reviewer verifies that the applicant has provided sufficient information and that the review and calculations (if applicable) support conclusions of the following type to be included in the staff's SER. The reviewer also states the bases for those conclusions. The staff concludes that the specified design and service combinations of loadings as applied to ASME Code Class 1, 2, and 3 pressure retaining components are acceptable and meet the requirements of 10 CFR 50.55a, 10 CFR Part 50, Appendix S and GDC 1, 2, 4, 14, and 15. This conclusion is based on the following: The applicant met the requirements of 10 CFR 50.55a, 10 CFR Part 50, Appendix S and GDC 1, 2, 4, 14, and 15 with respect to the design and service load combinations and associated stress and deformation limits specified for ASME Code Class 1, 2, and 3 components by ensuring that systems and components important to safety are designed to quality standards commensurate with their importance to safety and that these systems can accommodate the effects of normal operation as well as postulated events such as LOCA and the dynamic effects resulting from earthquakes. The specified design and service combinations of loadings, as applied to ASME Code Class 1, 2, and 3 pressure retaining components in systems designed to meet seismic Category I standards, are such as to provide assurance that, in the event of an earthquake affecting the site or other service loadings due to postulated events or system operating transients, the resulting combined stresses imposed on system components will not exceed allowable stress and strain limits for the materials of construction. Limiting the stresses under such loading combinations provides a conservative basis for the design of system components to withstand the most adverse combination of loading events without loss of structural integrity. The applicant has met the requirements of 10 CFR 50.55a, 10 CFR Part 50,