Document: NUREG-0800
Document ID: 34819bc5-4c15-4da7-8de9-4ab5944771a7
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1006/ML100630323.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for structural analysis reviews Secondary - None I. AREAS OF REVIEW This section describes the review of areas relating to all Seismic Category I structures and other safety-related structures that may not be classified as Seismic Category I, other than the containment and its interior structures. The specific areas of review are as follows: 1. Description of the Structures. The staff reviews the descriptive information, including plans and sections of each structure, to establish that there is sufficient information to define the primary structural aspects and elements relied upon for the structure to perform the safety-related function. The staff also reviews the relationship between adjacent structures, including the separation provided or structural ties, if any. The following describes the major plant structures that are reviewed and the descriptive information reviewed for each: 3.8.4-2 Revision 3 – May 2010 A. Containment Enclosure Building The containment enclosure building, which may surround all or part of the primary concrete or steel containment structure, is primarily intended to reduce leakage during and after a loss-of-coolant accident (LOCA). Concrete enclosure buildings also protect the primary containment, which may be of steel or concrete, from outside hazards. The enclosure building is usually constructed of either concrete or structural steel and metal siding. If it is a concrete structure, it usually has the geometry of the containment. As applicable, the descriptive information reviewed is similar to that of a concrete containment in accordance with Subsection I.1 of Standard Review Plan (SRP) Section 3.8.1. If the building is constructed of structural steel and metal siding, the staff will review the general arrangement of the building, including its foundations, wall, and roof; any bracing and lateral ties provided for the stability of the building; the roof supports which may bear