Document: NUREG-0800
Document ID: e33c60a2-ed28-41f3-b8f8-14cf60bc0cd3
Document Type: srp
Title: WIND LOADINGS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340621.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.3.1
CFR Part: 
CFR Title: 

Content:
ptable. In particular, the procedures utilized are acceptable if found in accord-: ance with the following: For a design wind velocity of V30 mph specified at a height of 30 feet above the ground, the velocity pressure, q30, is given by: 'O 0.00256 V2 psf The effective pressure for structures, qF, and for portions thereof, qp, at various heights above the ground should be in accordance with Table 5 and Table 6 of ANSI A58.1, respectively. Since most nuclear power plants are located in relatively open country, Exposure C, as defined in ANSI A58.1, should be selected for both tables. Depending upon the structure geometry and physical configuration, pressure coefficients.-may be selected in accordance with Section 6.4 of ANSI A58.1. Geometricalshapes that are.not.covered in this. document are reviewed on a.case-by-case b6sis. ASCE Paper No. 3269, "Wind Forces on Structures" (Ref. 3), may be used to obtain the effective wind pressures for cases which ANSI A58.1 does not cover. -III. REVIEW PROCEDURES .The reviewer selects and emphasizes material from the review procedures described below as may be appropriate for a particular case. 1. The site-related parameters described in subsection I.1 are reviewed by the Accident Evaluation Branch (AEB) under SRP Sections 2.3.1 and 2.3.2. The structural reviewer examines the approved values of these parameters to assure that they are consistent with those contained in SRP Sections 2.3.1 and 2.3.2. 3.3.1-2 Rev. 2 - July 1981 2. After the acceptability of the site-related parameters is established, the reviewer proceeds with the evaluation of the structural aspects of wind design. The procedures used by the applicant to transform wind velocities into effective pressures are reviewed and compared with those procedures delineated in subsection II of this plan. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided to satisfy the requirements of this SRP section, and concludes that his evaluation is