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:
f the following conditions: A. Detailed nonlinear dynamic analyses show that the amplitudes of sliding motion are minimal and impact between adjacent rack modules or between a rack module and the pool walls is prevented provided that the factors of safety against tilting are within the allowable values provided in SRP Section 3.8.5, Subsection II.5. B. Any sliding and tilting motion will be contained within suitable geometric constraints such as thermal clearances, and any impact resulting from the clearances is incorporated. The fuel pool structure should be designed for the loads imposed by 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 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, American Society of Civil Engineers, 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. 3.8.4-34 Draft Revision 4 – December 2012 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