Document: NUREG-0800
Document ID: 29f5ac9f-4962-4021-913a-6375076e03fd
Document Type: srp
Title: SEISMIC SYSTEM ANALYSIS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340566.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
9. SPONSORING ORGANIZATION -NAME AND ADDR ESS ftli orc. tre$~weso ^ -^ /trtrac, DvN~ofkor Rn. 00kr tn Fin, U.S huko .°Atrrofy Crtmi... -m a- adbovi Same as above. 10. SUPPLEMENTARY NOTES 1. ABSTRACT eo2 waU A krs This revision of SRP Section 3.7.2 has the following major changes: (1) For soil-structure interaction analysis, the reduction of control motion with depth is now acceptable but limited to 40% from the surface motion. Enveloping requirement of results from two methods is eliminated. Any single approach is acceptable with emphasis on proper implementation. (2) Guidance for modal combination of high frequency modes are provided and an acceptable approach is outlined in Appendix A. (3) option of direct generation of floor response spectra is included. Additional reference are provided for further guidance. 12.KEYWORDSIDESCR!PTORIS ILMi W Stult essirr tiv eetiwr J AVAILABILITY STATEMENT USI A-40 Unlimited Seismic Design Criteria 14.SECURITY CLASSIFICATION Soil-Structure Interaction (Tts Page Unclassified (TAh REPO"] Unclassified 15. NUMBER OF PAGES 16. PRICE NRC FORM 335 02491