Document: NUREG-0800
Document ID: c165ebfe-8431-4d56-8bc9-97c2227d45bb
Document Type: srp
Title: SEISMIC SYSTEM ANALYSIS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070640311.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
sion 3 - March 2007 10. Use of Equivalent Vertical Static Factors. Where applicable, justification for the use of equivalent vertical static load factors in calculating the vertical response loads for designing seismic Category I SSCs, in lieu of the use of a vertical seismic system dynamic analysis, is reviewed. 11. Methods Used to Account for Torsional Effects. The method employed to consider torsional effects in the seismic analysis of Category I structures is reviewed. The review includes evaluation of the conservatism of any approximate methods to account for torsional effects in the seismic analysis and design of seismic Category I structures. The consideration of accidental torsion for calculating structural responses is also reviewed. 12. Comparison of Responses. Where applicable, the comparison of seismic responses for major Category I structures using modal response spectrum and time history approaches is reviewed. 13. Analysis Procedure for Damping. The procedure employed to account for different critical damping values in different elements of the system structural model is reviewed. 14. Determination of Seismic Overturning Moments and Sliding Forces for Seismic Category I Structures. The description of the method and procedure used to determine design seismic overturning moments and sliding forces for all seismic Category I structures is reviewed. 15. Inspection, Test, Analysis, and Acceptance Criteria (ITAAC). For design certification (DC) and combined license (COL) reviews, the staff reviews the applicant's proposed ITAAC associated with the SSCs (if any are identified related to this SRP section) in accordance with SRP Section 14.3, "Inspections, Tests, Analyses, and Acceptance Criteria." The staff recognizes that the review of ITAAC cannot be completed until after the rest of this portion of the application has been reviewed against acceptance criteria contained in this SRP section. Furthermore, the staff reviews the ITAAC to ensure that all SSCs in