Document: NUREG-0800
Document ID: 73dc4705-6dff-4f44-87ee-2a6f76cc6536
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1319/ML13198A258.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
the racks. The fuel pool liner leak-tight integrity should be maintained, or the functional capability of the fuel pool should be demonstrated. 7. Materials, Quality Control, and Special Construction Techniques 3.8.4-35 Revision 4 – September 2013 The applicant should describe materials, quality control procedures, and any special construction techniques; the sequence of installation of the new fuel racks; and the precautions to be taken to prevent damage to the stored fuel during re-racking at an operating plant. If connections between the rack and the pool liner are made by welding, the welder, as well as the welding procedure for the welding assembly, should be qualified in accordance with the applicable code. For spent fuel pool racks fabricated from aluminum, ASCE, Suggested Specification for Structures of Aluminum Alloys 6061-T6 and 6067-T6 and “Specification for Aluminum Structures” (issued by The Aluminum Association) contain the guidance regarding material properties. TABLE 1 Load Combination Acceptance Limit D + L D+L+To D+L+To+E ASME Code Section III, Subsection NF Level A service limits for Class 3 D+L+Ta+E D+L+To+Pf ASME Code 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: 3.8.4-36 Revision 4 – September 2013 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