Document: NUREG-0800
Document ID: a0bd8078-b077-48b3-83a2-5710c3303535
Document Type: srp
Title: BARRIER DESIGN PROCEDURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340544.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.3
CFR Part: 
CFR Title: 

Content:
s those delineated in subsection II.2. If sufficient justification is not provided, additional information is requested from the applicant at the first stage of the review. 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 sufficiently complete and adequate to support the following type of conclusive statement to be included in the staff's Safety Evaluation Report: The staff concludes that the barrier design is acceptable and meets the requirements of General Design Criteria 2 and 4 with respect to the capabilities of the structures, shields, and barriers to provide sufficient protection to equipment that must withstand the effects of natural phenomena (tornado missiles) and.environmental effects including the effects of missiles, pipe whipping, and discharging fluids. This conclusion is based on the following: The procedures utilized to determine the effects and loadings on seismic Category I structures and missile shields and barriers induced by design basis missiles selected for the plant are acceptable since these procedures provide a conservative basis for engineering design to assure that the structures or barriers are adequately resistant to and will withstand the effects of such forces. The use of these procedures provides reasonable assurance that in the event of design basis missiles striking seismic Catefory I structures or other missile shields and barriers, the structural integrity of the structures, shields and barriers will not be impaired or degraded to an extent that will result in a loss of required protection. Seismic Category I systems and components protected by these structures are, therefore, adequately protected 3.5.3-4 Rev. 1 - July 1981 against the effects of missiles and will perform their intended safety function, if needed. Conformance with these procedures is an acceptable basis for satisfying in part the