Document: NUREG-0800
Document ID: 8d704f66-a0c9-4f54-ac74-43fe53a49ed4
Document Type: srp
Title: -
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A354.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
on-Category I structure will be analyzed and designed to prevent its failure under SSE conditions The disposition of each non-Category I structure should be formally documented. For criterion B, it is necessary to provide the technical basis for the determination that collapse of the non-Category I structure is acceptable. This should include a description of any additional loads imposed on the Category I SSCs and the method used to conclude that these loads are not damaging. Also, any protective shields installed to prevent direct impact on Category I SSCs should be described. For criterion C, it is necessary to demonstrate that there is no physical interaction between the non-Category I structure and all adjacent Category I SSCs. The maximum permissible displacement of the non-Category I structure in any direction is determined by subtracting the maximum calculated displacement of each adjacent Category I SSC in the direction of the non-Category I structure from the minimum as-designed gap, considering construction tolerances. The criterion of no physical interaction needs to be demonstrated for all elevations of the non-Category I structure, taking into consideration the potential for sliding and rocking of the non-Category I structure.