Document: NUREG-0800
Document ID: 1121c8ce-ab70-416c-9784-421014a1b25b
Document Type: srp
Title: SEISMIC DESIGN PARAMETERS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1419/ML14198A460.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.1
CFR Part: 
CFR Title: 

Content:
“Damping Values for Seismic Design of Nuclear Power Plants,” is reviewed. 3. Supporting Media for Seismic Category I Structures. The description of the supporting media for each seismic Category I structure is reviewed, including foundation embedment depth, depth of soil over bedrock, soil layering characteristics, highest groundwater elevation, dimensions of the structural foundation, total structural height, topographical conditions of the sites, and soil properties (including strain-dependent properties) and their assumed variability to permit evaluation of the applicability of continuum, finite-element or lumped-spring approaches for SSI analysis. 4. Review Considerations for DC and COL Applications. For a DC application, the postulated seismic design response spectra are reviewed. The input or control location for the postulated seismic design response spectra is also reviewed. The postulated seismic design response spectra will become the certified seismic design response spectra (CSDRS) when the design is certified by the Commission under 10 CFR Part 52. For a COL application referencing a certified design, the demonstration that the CSDRS, when transferred to the foundation level, envelops the site-specific FIRS is reviewed. 3.7.1-6 Revision 4 – December 2014 5. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC). For DC and COL reviews, the staff evaluates 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 this area of review are identified and addressed as appropriate in accordance with SRP Section 14.3. 6. COL Action Items