Document: NUREG-0800
Document ID: 97042a9a-9f44-4236-9cce-9d73fdf3fef0
Document Type: srp
Title: STEEL CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340577.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Structural Engineering Branch (SEB) Secondary - None I. AREAS OF REVIEW The following areas relating to steel containments or to other Class MC steel por- tions of steel/concrete containments, as applicable, are reviewed. 1. Description of the Containment a. The descriptive information, including plans and sections of the structure, is reviewed to establish that sufficient information is provided to define the primary structural aspects and elements relied upon to perform the containment function. In particular, the type of steel containment is identified and its structural and functional characteristics are examined. Among the various types of steel containments reviewed are: (i) Steel BWR containments utilizing the pressure-suppression concept, including the Mark I (lightbulb/torus), the Mark II (over/under), and the Mark III (with horizontal venting between a centrally located cylindrical drywell and a surrounding suppression pool). (ii) Steel PWR containments utilizing the pressure-suppression concept with ice-condenser elements. (iii) Steel PWR dry containments. Various geometries have been utilized for these containments. The geom- etry most commonly encountered, however, is an upright cylinder topped with a dome and supported on either a flat concrete base mat covered with a liner plate, or on a concrete foundation built around the bottom portion of the steel shell, which is an inverted dome. Although appli- cable to any geometry, the specific provisions of this SRP section are Rev. 1 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the nuclear Industry and the general public of regulatory procedures and policies. Standard review plans are not substitutes