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:
possibly jet forceds,9 and any structural failure in its boundary may result in steam bypassing the ice-condenser and flowing directly into the containment, possibly generating a containment pressure higher than that for which it has been designed. DRAFT Rev. 2 - April 1996 3.8.3-4 With this functional requirement in mind, the general arrangement and principal features of the divider barrier are reviewed with emphasis on structural framing and expected behavior when subjected to the design loads. ii. Ice-Condenser A major feature of the ice-condenser containment which containsconsists of the baskets of ice forming the heat sink essential for pressure 10 suppression. The structurally significant components of the ice-condenser reviewed are the vent doors, ice baskets, brackets, couplings and lattice framings, lower and upper supports, and insulating and cooling panels. The general arrangement and principal features of these major components are reviewed with emphasis on the structural framing, supports, and expected behavior when subjected to design loads. c. For BWR Containment Internal Structures Since it is expected that future BWR applications will utilize the Mark III containment concept, this SRP Section is oriented towards and based on this type of containment. For other types of BWR containments, the review will be made on a case-by-case basis. This SRP section is oriented toward the boiling-water-reactor (BWR) Mark III containment concept. Other BWR containment types are reviewed in a similar manner.11 Among the major Mark IIIBWR containment internal structures that are 12 reviewed, together with the primary structural function of each structure and the extent of descriptive information required for each structure, are the following: i. Drywell In the BWR Mark III containment system, which utilizes the 13 pressure-suppression concept, the drywell surrounds the reactor coolant system. The lower portion of the drywell is surrounded by the suppression pool