Document: NUREG-0800
Document ID: a8564bea-31bf-4592-ba45-e92b53d2d706
Document Type: srp
Title: SEISMIC SUBSYSTEM ANALYSIS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340570.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.3
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Structural and Geosciences Branch (ESGB) 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 Cate- gory 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 appli- cable 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 fre- quencies of components and equipment from the forcing frequencies of the support structure are reviewed. Rev. 2 - August 1989 USNRC STANDARD REVIEW PLAN Starsdard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the pubrac as part of the Commission s policy to inform the nuclear industry and the general public of regulatory procedures and policies. Standard review plans are not substitutes for regulatory guides or the Commission's regulations and compliance with them Is not required. The standard review plan sections are keyed to the Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants Not all sections of the Standard Format have a corresponding review plan. Published standard review plans will be revised periodically, as appropriate, to accommodate comments and to reflect new Informa- tion and experience. Comments and suggestions for improvement will be considered and should be sent to the U.S. Nuclear