Document: NUREG-0800
Document ID: 808cea66-69b8-4f91-9fb2-62b3b99bc87a
Document Type: srp
Title: NUREG-0800
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340579.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3
CFR Part: 
CFR Title: 

Content:
re reviewed include those for the ice baskets and brackets (couplings); the lattice frames and columns including attachments; the supporting struc- tures comprising the lower supports; the wall panels and cooling duct and supports of various auxiliary components. The ice-condenser and its components should be analyzed or tested for various loads and combinations thereof including dead and live loads, thermal loads induced by differential thermal expansion within the various elements, seismic loads and loads induced by the loss-of-coolant accident. Accident loads include pressure differential drag loads and loads induced by the change of momentum of the flowing steam. Elastic analysis is usually utilized for the ice-condenser and its components. However, plastic analysis may also be used as an alternate. Accordingly, the load factors that are applied to each of the applicable loads and the basis and justification of these load factors are reviewed. Where experimental verification of the design using simulated load conditions is used, the procedures used to account for similtude relationships which exist between the actual com- ponent and the test model are reviewed to assure that the results obtained from the test are a conservative representation of the load carrying capability of the actual component under the postulated loading. 3.8.3-9 Rev. 1 - July 1981 c. For BWR Containment Internal Structures i. Drywell The drywell, which has to maintain a certain degree of leak-tightness during a LOCA, is critical with respect to the proper functioning of the containment. Accordingly, and since it geometrically resembles a containment, the design and ana- lysis procedures utilized for the drywell are reviewed on a basis similar to those of containments as described in Subsection 1.4 of Standard Review Plan Sections 3.8.1 and 3.8.2 for concrete and steel portions, respectively. ii. Weir Wall One of the major loads to which the weir wall may be subjected is a jet impingement