Document: NUREG-0800
Document ID: 6515b846-83c3-42fc-8006-29454eea66b1
Document Type: srp
Title: -
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1319/ML13198A223.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
ategory I structure is analyzed and designed to prevent its failure under SSE conditions. The disposition of each non-seismic 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-seismic Category I structure is acceptable. This should include a description of any additional loads imposed on the seismic 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 seismic Category I SSCs should be described. For criterion C, it is necessary to demonstrate that there is no physical interaction between the non-seismic Category I structure and all adjacent seismic Category I SSCs. The maximum permissible displacement of the non-seismic Category I structure in any direction is determined by subtracting the maximum calculated displacement of each adjacent seismic Category I SSC in the direction of the non-seismic Category I structure