Document: NUREG-0800
Document ID: 585516eb-af20-45dc-a470-9638ec9381f3
Document Type: srp
Title: Each calculated spectrum of the artificial time history is considered to envelop
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070640306.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.0
CFR Part: 
CFR Title: 

Content:
dressing potential impact on soil-structure interaction, potential settlements and design of foundation elements. 4. Review Considerations for DC and COL Applications A. COL Application Referencing an ESP and CD In addition to the criteria presented below, Figures 1 and 2 in Appendix D provide additional guidance in understanding the Part 52 process. i. Site-specific GMRS are reviewed separately under SRP 2.5.2 for adequacy. For COL application referencing an ESP and CD, the GMRS are included in the ESP. ii Confirm that the criterion for the minimum required response spectrum (in accordance with subsection II.1.A.ii) has been satisfied. 3.7.1-14 Revision 3 - March 2007 iii. Confirm that COL action items contained in the CD have been met. This includes seismic design parameters such as soil layering assumptions used in the certified design, range of soil parameters, shear wave velocity values, and minimum soil bearing capacity. Technical justification for all deviations from the range of values used in the standard plant design must be provided for review. iv. Confirm that the ESP conditions have been met or review the COL applicant’s approach to address any deviations. v. When the site-specific GMRS and the CSDRS, are calculated at the same elevation, confirm that the CSDRS envelop the GMRS. For this case the standard design is acceptable for that site, assuming no other issue is identified during the review process. If the CSDRS do not envelop the site-specific GMRS then proceed to step vii. vi. When the site-specific GMRS and the CSDRS are determined at different elevations, calculate the site-specific GMRS transferred to the base elevations of each seismic Category I foundation. These site-specific GMRS at the foundation levels are referred to as foundation input response spectra (FIRS) and are derived as free-field outcrop spectra; that is, only the effects of materials that are below the base elevation of the seismic Category I structure are included in the