Document: NUREG-0800
Document ID: a08d9554-4808-4bfa-a7ae-35542b0fea1f
Document Type: srp
Title: VIBRATORY GROUND MOTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340591.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2
CFR Part: 
CFR Title: 

Content:
tations." This guide discusses the major site characteristics related to public health and safety which the NRC staff considers in determining the suitability of sites for nuclear power stations (Ref. 5). 6. Regulatory Guide 1.60, "Design Response Spectra for Seismic Design of Nuclear Power Plants." This guide gives one method acceptable to the NRC staff for defining the response spectra corresponding to the expected maximum ground acceleration (Ref. 6). See also Subsection 2.5.2.6. 2.5.2-2 Rev. 2 - August 1989 . The primary required investigations are described in 10 CFR Part 100, Sec- tion IV(a) of Appendix A (Ref. 1). The acceptable procedures for determin- ing the seismic design bases are given in Section V(a) and Section VI(a) of the appendix. The seismic design bases are predicated on a reasonable, con- servative determination of the SSE and the OBE. As defined in Section III of 10 CFR Part 100, Appendix A (Ref. 1), the SSE and OBE are based on con- sideration of the regional and local geology and seismology and on the characteristics of the subsurface materials at the site and are described in terms of the vibratory ground motion that they would produce at the site. No comprehensive definitive rules can be promulgated regarding the investi- gations needed to establish the seismic design bases; the requirements vary from site to site.