Document: NUREG-0800
Document ID: 9a241f0f-0a6b-4868-8e0c-4105d22a8e58
Document Type: srp
Title: VIBRATORY GROUND MOTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1230/ML12301A010.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2
CFR Part: 
CFR Title: 

Content:
sites for nuclear power stations. RG 1.60, "Design Response Spectra for Seismic Design of Nuclear Power Plants,” states that smoothed response spectra are generally used for design purposes. The RG 1.60 standard spectral shape has been frequently used for certified seismic design response spectra (CSDRS). For recent DC applications of plants to be located in the Central and Eastern United States (CEUS), RG 1.60 standard spectra have been modified to account for high frequency motions. Under the COL procedure, the GMRS are used to determine the adequacy of the CSDRS for a site. If adequate, then the CSDRS becomes the SSE for the site. However, for some site-specific structures the SSE could be site-specific SSE and not the CSDRS. RG 1.138, "Laboratory Investigations of Soils for Engineering Analysis and Design of Nuclear Power Plants," describes laboratory investigations and testing practices acceptable for determining soil and rock properties and characteristics, together with their uncertainties, needed for site geotechnical investigations and evaluations. RG 1.198, "Procedures and Criteria for Assessing Seismic Soil Liquefaction at Nuclear Power Plant Sites,” describes acceptable methods for evaluating the potential for earthquake induced instability of soil resulting from liquefaction and strength degradation in complying with 10 CFR 100.23 and 10 CFR Part 50, Appendix S. 2.5.2-6 Draft Revision 5 – 2013 RG 1.208, "A Performance-Based Approach to Define the Site-Specific Earthquake Ground Motion, " describes acceptable methods to: (1) conduct geological, seismological, geophysical, and geotechnical investigations of the site and region around the site, (2) identify and characterize seismic sources, (3) perform PSHA, (4) perform site response analysis, and (5) determine the GMRS for the site (see SRP Section 2.5.2.6) using the performance-based approach. RG 1.206,” Combined License Applications for Nuclear Power Plants (LWR Edition),” provides guidance