Document: NUREG-0800
Document ID: 4ded65c2-74df-4f0b-9d0f-503a52cd155a
Document Type: srp
Title: for additional information, and the discussion in SRP Section 14.3.3.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660522.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3
CFR Part: 
CFR Title: 

Content:
as-built configuration with the structural design basis loads (which include suppression pool hydrodynamic loads). The as-built analysis results should be documented in a structural analysis report as discussed above. This report may be able to be satisfied using the ASME Code- required reports for the reconciliation analysis for the primary containment. The effects of suppression pool hydrodynamic loads do not extend beyond the reactor building, and, thus, ITAAC are not required to verify these loadings for the building structures outside the reactor building. 14.3.2-8 March 2007 ITAAC also should require the verification of the horizontal vent system, water volume, and the safety-relief valve discharge line quencher arrangement to ensure adequacy of the suppression pool hydrodynamic loads used for design. 8. Flood, Wind, Tornado, Rain, and Snow. To ensure that the applicable requirements of GDC 2 have been adequately addressed, ITAAC should be established to verify that the safety-related systems and structures have been designed to withstand the effects of natural phenomena other than those associated with seismic loadings. The effects include those associated with flood, wind, tornado, rain, and snow. These loadings do not apply to the RPV, the ASME Code Class 1, 2, and 3 piping systems and components, nor the primary containment (except for the exposed portions of the concrete containments) because they are all housed within the safety-related buildings. For safety-related buildings, ITAAC should require an analysis for reconciling the as-built plant with the structural design basis loads (which include the flood, wind, tornado, rain, and snow loads). Based on their safety significance, these ITAAC need apply only to safety-related structures and need not be applicable to the service and turbine buildings (radwaste and turbine building for PWRs). For flooding, site parameters are specified that require the maximum flood level and ground water level be below the