Document: NUREG-0800
Document ID: 73747cf4-ff95-449b-b6b0-53dc0755b9e0
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A382.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
ode Section III, Subsection NF Level B service limits for Class 3 D+L+Ta+E’ ASME Code Section III, Subsection NF Level D service limits for Class 3 D+L+Fd The functional capability of the fuel racks should be demonstrated Limit Analysis Load Combination Acceptance Limit 1.7 (D + L) 1.7 (D + L + To) 1.7 (D + L + E + To) 1.7 (D + L + E + Ta) 1.7 (D + L + To + Pf) 1.1 (D + L + Ta+ E') ASME Code Section III, Subsection NF, paragraph 3340 Notes: 1. The abbreviations in the table above are those used in Subsection II.3 of SRP 3.8.4 where each term is defined, except for Ta, Fd, and Pf. Ta is defined here as the highest temperature associated with the postulated abnormal design conditions. Fd is the force caused by the accidental drop of the heaviest load from the maximum possible height. Pf is the upward force on the racks caused by a postulated stuck fuel assembly. 2. Deformation limits specified by the design specification limits should be satisfied and such deformation limits should preclude damage to the fuel assemblies. 3. The provisions of ASME Code, Section III, Division 1, Subsection NF were amended consistent with regulatory positions contained in RG 1.124 “Service Limits and Loading Combinations for Class 1 Linear-Type Component Supports.” II. REFERENCES 1. Regulatory Guide1.29, “Seismic Design Classification.” 3.8.4-35 Draft Revision 4 – December 2012 2. Regulatory Guide 1.92, “Combining Modal Responses and Spatial Components in Seismic Response Analysis.” 3. Regulatory Guide1.124, “Service Limits and Loading Combinations for Class 1 Linear- Type Component Supports.” 4. American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Section III, Division 1. 5. American National Standards Institute, N210-76, “Requirements for Light Water Reactor Spent Fuel Storage Facilities at Nuclear Power Plants, Design.” 6. American Society of Civil Engineers, Suggested Specification for Structures of Aluminum Alloys 6061-T6 and 6067-T6. 7.