Document: NUREG-0800
Document ID: a09b1666-b289-4ea9-9e8f-3ee5fbd5bf41
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1319/ML13198A250.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
ion of the reactor coolant system. The review evaluates the general arrangement and principal features of the weir wall, with an emphasis on structural framing and behavior under loads. iii. Refueling Pool and Operating Floor The refueling pool walls are located on top of the drywell. The outer walls form a rectangular pool that is usually subdivided by two interior crosswalls. The base slab of the pool is common to the drywell roof slab. The pool may be filled continuously with water for shielding purposes during operation. The review evaluates the general arrangement and principal features of the refueling pool, with an emphasis on structural framing and behavior under loads. The operating floor is intended to provide laydown space for refueling operations and is usually a combination of reinforced concrete and structural steel framing. The containment walls and the refueling pool walls may support the floor. 3.8.3-6 Revision 4 – September 2013 The review evaluates the general arrangement and principal features of the operating floor. iv. Concrete Supports for Reactor and Recirculation Pump The support systems of the BWR vessel and recirculation pumps have the same functions as the support systems for PWR vessels and pumps and thus are similarly reviewed. v. Reactor Pedestal The reactor pedestal is usually a cylindrical structure located below and supporting the reactor vessel, which is anchored to the top of the pedestal. The review evaluates the general arrangement and principal features of the reactor pedestal, with an emphasis on structural framing, reinforcement, and the manner in which the pedestal is anchored to the containment base slab. vi. Reactor Shield Wall The reactor shield wall is usually a cylindrical wall surrounding the reactor vessel for radiation shielding purposes. It is supported on the reactor pedestal. The wall may be lined on both surfaces with steel plates which also may act as the main structural components of the wall. In addition,