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:
chnical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with GDC 2 requires that nuclear power plant SSCs and important to safety shall be designed to withstand the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, floods, tsunami, and seiches without loss of capability to perform their intended safety functions. 2. The acceptance criteria outlined above include references to industry standards and data for evaluating tornado loads on structures. These standards and data have been reviewed by the staff and found to be acceptable. 3. Meeting the requirements of GDC 2 provides assurance that and SSCs important to safety and subject to tornado effects will be designed to withstand the most severe tornado loads without loss of capability to perform their intended safety functions. 3.3.2-7 Revision 3 - March 2007 III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. Site-related parameters described in Review Interfaces, subsection 1, are reviewed in accordance with SRP Sections 2.3.1 and 2.3.2. The spectrum and characteristics of tornado missiles described in Review Interfaces, subsection 2, are reviewed in accordance with SRP Section 3.5.1.4. Atmospheric pressure change effects for partially enclosed structures described in Review Interfaces, are reviewed on a case-by-case basis. 2. After the acceptability of the site-related parameters is established, the reviewer proceeds to review the structural aspects of