Document: NUREG-0800
Document ID: a0a62b6d-58c6-46ce-a3e0-5219f7a1645a
Document Type: srp
Title: -10
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1233/ML12334A360.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
Draft Revision 3 – June 2013 SRP Section 3.9.3 provides guidance for the staff's review of loading conditions, stresses, and stress limits for the subject components and structures which are important to safety. Loading conditions, stresses, and stress limits are described in Appendix A of this SRP section and Subsection NF of the Code. Stress limits and loading combinations are specified in these documents that are appropriate to the conditions that can be expected during the life of the plant. SRP Section 3.9.3 also provides guidance for the staff's review of interfacing issues such as design specifications, mechanical properties, and testing, as appropriate. SRP Section 3.9.3 provides related guidance on component supports as well as the installation of pressure relief devices. The guidance cites the provisions of the Code to compute stresses and stress limits. This guidance is designed to comply with GDC 1. Meeting the requirements of GDC 1 provides reasonable assurance that components and structures important to safety are capable of performing their intended functions. 3. GDC 2 requires, in part, that components and structures important to safety be designed to withstand the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, floods, tsunami and seiches without loss of capability to perform their safety functions. The design bases for these components and structures shall reflect, among other things, appropriate combinations of the effects of normal and accident conditions with the effects of the natural phenomena. SRP Section 3.9.3 provides guidance for the staff's review of loading combinations, stresses and stress limits for the subject components and structures which are important to safety. These loading combinations include consideration of the effects of expected natural phenomena combined with the appropriate effects of normal and accident conditions. The stresses and stress limits (computed in accordance with the provisions of