Document: NUREG-0800
Document ID: 274f0789-5956-4979-b7da-3b44ddf985d4
Document Type: srp
Title: TORNADO LOADS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070570002.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.3.2
CFR Part: 
CFR Title: 

Content:
ory I structures, as required in item 2 listed above, has included load combinations of the most severe tornado load and the loads resulting from normal and accident conditions. The procedures used to determine the loadings on structures induced by the design-basis tornado specified for the plant are acceptable because these procedures have been used in the design of conventional structures and proven to provide a conservative basis which together with other engineering design considerations ensures that the structures can withstand such environmental forces. The use of these procedures provides reasonable assurance that in the event of a design- basis tornado, the structural integrity of the plant structures that have to be designed for tornadoes will not be impaired and, in consequence, safety-related systems and components located within these structures will be adequately protected and may be expected to perform necessary safety functions as required, thus satisfying the requirement in item 3 listed above. For DC and COL reviews, the findings will also summarize the staff’s evaluation of requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. 3.3.2-9 Revision 3 - March 2007 In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff's evaluation of the ITAAC, including design acceptance criteria, as applicable. V. IMPLEMENTATION The staff will use this SRP section in performing safety evaluations of DC applications and license applications submitted by applicants pursuant to 10 CFR Part 50 or 10 CFR Part 52. Except when the applicant proposes an acceptable alternative method for complying with specified portions of the Commission’s regulations, the staff will use the method described herein to evaluate conformance with Commission regulations. The provisions of this SRP section apply to reviews of applications submitted six