Document: NUREG-0800
Document ID: 1ec84ad3-68ce-4f8a-8c39-19d502205a92
Document Type: srp
Title: SEISMIC SUBSYSTEM ANALYSIS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070319.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.3
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - StructuralCivil Engineering and Geosciences Branch (ESGBECGB ) 1 Secondary - None I. AREAS OF REVIEW The following areas related to the seismic subsystem analysis are reviewed: 1. Seismic Analysis Methods The information reviewed is similar to that described in subsection I.1 of Standard Review Plan (SRP) Section 3.7.2 but as applied to seismic Category I subsystems. 2. Determination of Number of Earthquake Cycles Criteria or procedures used to establish the number of earthquake cycles during one seismic event and the maximum number of cycles for which applicable Category I subsystems and components are designed are reviewed. 3. Procedures Used for Analytical Modeling The criteria and procedures used for modeling the seismic subsystems are reviewed. 4. Basis for Selection of Frequencies As applicable, criteria or procedures used to separate fundamental frequencies of components and equipment from the forcing frequencies of the support structure are reviewed. DRAFT Rev. 3 - April 1996 3.7.3-2 5. Analysis Procedure for Damping The information reviewed is similar to that described in subsection I.13 of SRP Section