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:
mmary 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 ---- 2.2.2.3 (1c) Flux Chugging derived from 4TCO tests. 7 Load sources are obtained by averaging each individual key chug and its largest adjacent chugs, the other 3 chugs obtained from 4TCO are used without averaging. Alternate load using 7 sources derived from the 4TCO key chugs without averaging. Sources are applied to plants using the IWEGS/MARS acoustic model assuming source desynchronization of 50 ms. -Symmetric All vents utilize source of Load equal strength for each of the sources. -Asymmetric Source strengths S± = S (1± ) Load Case applied to all vents on + and - side of containment. Sources based on the symmetric sources. Asymmetric parameters based on rms moment method of interpreting experimental 4TCO single-vent and JAERI multivent data. D. Secondary Loads 1. Sonic Wave Negligible load ---- III.E.1 (1a) Load 2. Compressive Negligible load ---- III.E.2 (1a) Wave Load 3. Fallback Load Negligible load ---- III.E.5 (1a) on Submerged Boundary 4. Thrust Loads Momentum balance ---- III.E.6 (1a) 5. Friction Drag Standard friction drag ---- III.E.7 (1a) Loads on calculations Vents 6. Vent Clearing Negligible load ---- III.E.8 (1a) Loads FSE /D 1 1 (0.0064 Wf)2 : for Wf < 2000 inch/sec, P (t) Pmax 1/2(1 COS 2 t ) Table B-1 Mark II LOCA-related hydrodynamic loads Summary table DRAFT Rev. 7 - April 1996 6.2.1.1.C-22 Footnotes For Table B-1 NOTE 1 NRC NUREG sections that describe the NRC specific load evaluation. Specific NUREGs are (a) NUREG-0487 (b) NUREG-0487 Supplement 1 and (c) NUREG-0808. NOTE 2 Impact Drag Loads on Grating The static drag load on grating in the pool-swell zone of the wetwell shall be calculated for grating with open area greater than or equal to 60% by forming the product of the pressure differential as given in Figure 4-40 of NEDO-21061,