Document: NUREG-0800
Document ID: ab4f353d-c299-479d-ab25-834f97196988
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR CONCRETE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070326.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
CONTAINMENTS REVIEW RESPONSIBILITIES Primary - Structural Engineering Branch (SEB)Civil Engineering and Geosciences Branch (ECGB)1 Secondary - None I. AREAS OF REVIEW The following areas relating to the containment internal structures are reviewed: 1. Description of the Internal Structures The descriptive information, including plans and sections of the various internal structures, is reviewed to establish that sufficient information is provided to define the primary structural aspects and elements relied upon to perform the safety-related functions of these structures. In order to perform the safety-related functions, these structures must be capable of resisting loads and load combinations to which they may be subjected and should not become the initiator of a loss-of- coolant accident (LOCA). If 2 such an accident does occur, however, theythe structures should be able to mitigate its 3 consequences by protecting the containment and other engineered safety features from the effects induced by the accident such as jet forces and whipping pipes. The major containment internal structures that are reviewed, together with the primary structural function of each structure, and the extent of descriptive information required DRAFT Rev. 2 - April 1996 3.8.3-2 for each structure, are indicated below. For equipment supports that are not covered by this Standard Review Plan (SRP) section, reference is made to Standard Review 4 PlanSRP Section 3.9.3. 5 a. For PWR Dry Containment Internal Structures i. Concrete Supports for Reactor The pressurized-water-reactor (PWR) vessel should be supported and 6 restrained to resist normal operating loads, seismic loads, and loads induced by postulated pipe rupture, including the loss of coolant accidentLOCA. The support and restraint system should limit the 7 movement of the vessel to within allowable limits under the applicable combinations of loadings. The support system should nevertheless minimize resistance to the thermal movements