Document: NUREG-0800
Document ID: 5887ec11-6ad2-46aa-be7f-d596fb3777b6
Document Type: srp
Title: CONCRETE CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070324.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.1
CFR Part: 
CFR Title: 

Content:
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 concrete containments or to concrete portions of steel/concrete containments, as applicable, are reviewed. 1. Description of the Containment 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 concrete containment is identified and its structural and functional characteristics are examined. Among the various types of concrete containments reviewed are: a. Reinforced- and prestressed-concrete, boiling-water-reactor (BWR) containments 2 utilizing the pressure-suppression concept, including the Mark I (modified 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) and the ABWR (with steel liner, upper and lower drywell chambers, and suppression chamber) . 3 DRAFT Rev. 2 - April 1996 3.8.1-2 b. Reinforced-concrete, pressurized-water-reactor (PWR) containments utilizing the 4 pressure-suppression concept with ice-condenser elements. c. Reinforced-concrete PWR containments designed to function under subatmospheric conditions. d. Reinforced- and prestressed-concrete PWR dry containments designed to function at atmospheric conditions. e. Reinforced- and prestressed-concrete PWR or BWR containments utilizing special features or modifications of the above-listed types. Various geometries have been utilized for these containments. The geometry most commonly encountered is an upright cylinder topped with a dome and supported on a flat concrete base mat. Although applicable to any geometry, the specific provisions of this SRP section are best suited to the cylindrical