Document: NUREG-0800
Document ID: a28650b3-fa03-428d-a2bd-4a27f583710b
Document Type: srp
Title: NUREG-0800
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070484.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6
CFR Part: 
CFR Title: 

Content:
pulse data and flat pool assumption. Variable pulse duration. b) Large None - Plant unique load ---- III.B.3.c.6 (1a) Structures where applicable. c) Grating P drag vs. grating area Note 2 III.B.3.c.3 (1a) correlation and pool velocity vs. elevation. Pool velocity from the PSAM. P drag multiplied by dynamic load factor. 4. Wetwell Air Compression a) Wall Loads Direct application of the ---- III.B.3.d.1 (1a) PSAM calculated pressure due to wetwell compression. b) Diaphragm 5.5 psid for diaphragm ---- 2.1.2.7 (1c) Upward Loads loadings only. Table B-1 Mark II LOCA-related hydrodynamic loads Summary table Load or Load specification Load NRC (Foot- phenomenon specification Evaluation note) clarifying footnotes DRAFT Rev. 7 - April 1996 6.2.1.1.C-20 5. Asymmetric Use 20% of maximum bubble ---- II.A.3 (1b) LOCA Pool pressure statistically applied to one-half of the submerged boundary. This load is to be applied statically together with normal hydrostatic pressure to the submerged portion of the containment. C. Steam Condensation and Chugging Loads 1. Downcomer Lateral Loads a) Single-Vent Dynamic load to end of vent. Note 4 2.3.3.2 (1c) Loads (24 in.) Half sine wave with a duration of 3 to 6 ms and corresponding maximum amplitudes of 65 to 10 klbf. b) Multiple- Prescribed variation of load ---- 2.3.3.3 (1c) Vent Loads per vent vs. number of vents. (24 in.) Determined from single vent dynamic load specification and multivent reduction factor. c) Single/Mul- Multiply basic 24" vent loads ---- 2.3.2.1 (1c) tiple Vent by factor f=1.34 Loads (28 in.) 2. Submerged Boundary Loads a) Bounding CO pressure ---- 2.2.1.3 (1c) High/Medium histories observed in 4TCO Steam Flux tests. Inphase application. Condensation Oscillation Load Table B-1 Mark II LOCA-related hydrodynamic loads Summary table Load or Load specification Load NRC (Foot- phenomenon specification Evaluation note) clarifying footnotes 6.2.1.1.C-21 DRAFT Rev. 7 - April 1996 b) Low Steam Conservative set of 10 sources