Document: NUREG-0800
Document ID: f58a3e4a-be8a-4b75-8b11-b41b7a54a500
Document Type: srp
Title: SEISMIC DESIGN PARAMETERS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340564.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.1
CFR Part: 
CFR Title: 

Content:
l properties, etc., are used as an integral part of the seismic analysis review of Category I structures. For those areas of review identified above as being part of other SRP sections, the acceptance criteria necessary for the review and their methods of application are contained in the referenced SRP sections. II. ACCEPTANCE CRITERIA The staff accepts the design of structures that are important to safety and that must withstand the effects of the earthquakes if the relevant requirements of General Design Criterion (GDC) 2 (Ref. 4) and Appendix A to 10 CFR Part 100 (Ref. 2) concerning natural phenomena are complied with. The relevant require- ments of GDC 2 and Appendix A to 10 CFR Part 100 are: 1. For GDC 2 - The design basis shall reflect appropriate consideration of the most severe earthquakes that have been historically reported for the site and surrounding area with sufficient margin for the limited accuracy, quantity, and period of time in which historical data have been accumulated. 2. For Appendix A to 10 CFR Part 100 - Two earthquake levels, the safe shutdown earthquake (SSE) and the operating basis earthquake (OBE), shall be consid- ered in the design of the safety-related structures, components, and systems. Specific criteria necessary to meet the relevant requirements of GDC 2 and Appendix A to 10 CFR Part 100 are described below. The acceptance criteria for the areas of review described in subsection I above are as follows. 1. Design Ground Motion a. Design Response Spectra The proposed OBE and SSE design response spectra for use in analyses and design of structures, systems, and components should, generally, meet or exceed amplitudes of the site-specific spectra at all frequencies. The use of generic spectra, such as Regulatory Guide 1.60 (Ref. 5) spectra, as design spectra is also acceptable provided that their use is consistent with the information reviewed in SRP Section 2.5.2. 3.7.1-4 Rev. 2 - August 1989 To be acceptable, the design response