Document: NUREG-0800
Document ID: 025e5140-015c-4e77-ad4f-ff52a81956fe
Document Type: srp
Title: WIND LOADING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070570001.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.3.1
CFR Part: 
CFR Title: 

Content:
e) support conclusions of the following type to be included in the staff's safety evaluation report. The reviewer also states the bases for those conclusions. The applicant has met the requirements of GDC 2 with respect to the capability of the structures to withstand design wind loading so that their design reflects the following: 1. Appropriate consideration for the most severe wind recorded for the site with an appropriate margin; 2. Appropriate combinations of the effects of normal and accident conditions with the effects of the natural phenomena; and 3. The importance of the safety function to be performed. 3.3.1-6 Revision 3 - March 2007 The applicant has designed the plant structures with sufficient margin to prevent structural damage during the most severe wind loadings that have been determined appropriate for the site so that the requirements in Item 1 listed above are met. The applicant has used methods provided in ASCE/SEI 7-05, which the staff reviewed and found acceptable, to transform the wind speed into an equivalent pressure on structures and to select pressure coefficients corresponding to the structure’s geometry and physical configuration. The procedures used to determine the loadings on structures induced by the design wind speed specified for the plant are acceptable because these procedures have been used in the design of conventional structures and proven to provide an adequate basis which together with other engineering design considerations ensures that the structures will withstand such environmental forces. In addition, the design of seismic Category 1 structures, as required by Item 2 listed above, has included load combinations of the most severe wind load and the loads resulting from normal and accident conditions. The use of these procedures provides reasonable assurance that in the event of design basis winds, the structural integrity of the plant structures that must be designed to resist the effects of the design wind speed will