Document: NUREG-0800
Document ID: d4d0e6e4-7a83-4668-8394-54672bdc0bc4
Document Type: srp
Title: and 3.2.2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340575.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.1
CFR Part: 
CFR Title: 

Content:
d Ym should be applied simultaneously, where appropriate, unless a time-history analysis is performed to justify 'doing otherwise. c. Hydrodynamic loads resulting from LOCA and/or SRV actuation should be combined as indicated in the appendix to this SRP Section. d. Where post-LOCA flooding is a design consideration, the following combination should also be considered in the factored load category: 1.0 D + 1.0 L + 1.0 F + 1.0 Feqo, where D, L, Feqo are as defined in the Code and F is the load generated by the post-LOCA flooding of the containment. 4. Design and Analysis Procedures The procedures of design and analysis utilized for the concrete containment, including the steel liner', are acceptable if found in accordance with those stipulated in Article CC-3300 of the Code. In particular, for the areas of review outlined in Subsection 1.4 of this SRP section, the following procedures are, in general, acceptable:' a. Assumptions on boundary conditions The boundary conditions depend on the methods of analysis to be used and the portions of the containment shell to be separately analyzed. If the analysis is to be accomplished through the use of the finite element technique, and is to include the foundation media, the boundary would be the demarcation lines separating the foundation mass taken into consideration in the analysis from the surrounding media. The boundaries of the foundation mass considered have to be so selected that any further extension of the boundaries will not affect the results by more than 15 percent. If only the containment shell and its foundation mat are taken into consideration in the analysis, then the bottom of the foundation slab is the boundary of the analytical model. The foundation media should be represented by appropriate soil springs. 3.8.1-8 .Rev. 1 - July 1981 If separate analyses of the containment shell and the base mat are to be used, it is considered acceptable if strain compatibility of the bottom portion of the shell with the