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:
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. The wall may also be utilized as an anchor for pipe restraints. The general arrangement and principal features of the wall are reviewed with particular emphasis on structure framing and behavior under loads. vii. Other Interior Structures The other major interior structures constructed of reinforced concrete or structural steel or combinations thereof that are also reviewed in a similar manner are the floors located inside the drywell and in the annulus between the drywell and the containment and the polar crane supporting elements. The general arrangement and principal features of these structures are reviewed. 2. Applicable Codes, Standards, and Specifications The information pertaining to design codes, standards, specifications, and regulatory guides, and other industry standards that are applied in the design, fabrication, construction, testing, and surveillance of the containment structures, is reviewed. The specific edition, date, or addenda identified for each document are also reviewed. 3. Loads and Loading Combinations a. Information pertaining to the applicable design loads and various load combinations thereof is reviewed. The loads normally applicable to containment internal structures include the following: i. Those loads encountered during normal plant startup, operation, and shutdown, including dead loads, live loads, thermal loads due to operating temperature, and hydrostatic loads such as in refueling and pressure suppression pools in addition to hydrodynamic loads resulting from actuation of safety relief valves (SRVs) and manifested as drag load, jet impingement, and/or pressure loads should be considered. WheneverBy implication, a reference is made to ACI 349, it implies that the code is * augmented by is based on the guidance provided