ML17059B661
| ML17059B661 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 07/29/1997 |
| From: | Agosta C, Alvi M NIAGARA MOHAWK POWER CORP. |
| To: | |
| Shared Package | |
| ML17059B657 | List: |
| References | |
| S.0SEWS9604, S.0SEWS9604-R, S0.0SEWS9604, S0.0SEWS9604-R00, NUDOCS 9708070124 | |
| Download: ML17059B661 (18) | |
Text
U Y NIAGARA m W MOHAWK NUCLEAR ENGINEERING CALCULATlONCOVER SHEET Page Last
~
ATTACHMENT F t ( Next'otal NINE MILE POINT NUCLEAR STATION Unit (1, 2 or 0=Both): 1 Disci pllne: STRUCTURAL Title Caloulatton No.
SCREENING EVALUATIONWORK SHEETS FOR TANK9644 SO.OSEWS9604 (Sub)system(s) Building Floor Elev. Index No.
CARMEN R. AGOSTA Checker(s) / Approver(s)
AO A Design Rev Descrl tlon Chan eNo. 8 Date Chk Date A Date 00 INITIALISSUE Computer Output/Microfilm Filed Separately (Yes / No / NA): NA Safety Class (SR / NSR/ Qxx): SR Superseded Document(s): NONE Document Cross Reference(s) - For additional references see page(s): NA Ref Doc No Document No. T e Index Sheet Rev NER 1S-012 NER 00 SO.OSQUGANCHOR CALC S0.0 00 General Reference(s):
- 3. GENERIC IMPLIMENTATIONPROCEDURE (GIP)
- 4. NMPC Letter to NRC, File Code NMP1L 1044, dated March 11, 1996 Remarks:
NONE Confirmation Required (Yes / No): No Final Issue Status File Location Operations Acceptance See Page(s): (APP / FIO/VOI ): APP ( Gale/ Hold ): Gale Required ( Yes/ No ): No Evaluation Number(s) / Revision: NR Component ID(s) / EPN(s) / Line Number(s):
Copy of Applicability Review Attached (Yes / N/R)? N/R TANK-9644, TANK-9645 TANK-9645 TANK4646 Key Words: NMP-1, STRUCTURAL, SQUG, SEWS, SEISMIC TANK4647 VERIFICATION TANK-9648 TANK-9M1 TANK4$32 TANK-9%3 TANK-9%34
¹ FORMAT NEP-DES48.F0140 97ostt7otpe e707Si 05000220 PDR ADOCK p,
II 8 Y NlAGARA U MOHAWK NUCLEAR ENGINEERING Nine Mile Point Nuclear Station CALCULATtONCONTlNUATION SHEET Unit: 1 Disposition:
Pege (Next ~
Originator/Date Checker/Date Caicuiation No. Revishn
-te O7 ew SO.OSEWS96-04 00 PURPOSE: Document the Screening Evaluation Work Sheets (SEWS) for the DSA/DG¹102 START AIR TANK¹4, equipment number 96-04. The emergency diesel air start tanks, ID numbers TANK-96-04 to 08 and TANK-96-31 to 35, are the same tank having the same anchorage. This calculation evaluates the anchorage for all these similar tanks.
This SEWS has been prepared as part of the commitment to use the SQUG (GIP) methodology to document the seismic adequacy of SSEL components.
CONCLUSION: The TANK-96-04 anchor analysis concluded the anchorage can withstand 4.207 times greater the seismic demand. The allowable loads for these cinch anchors are referenced in calculation SO.OSQUGANCHOR. The cinch anchors passed the tightness check for tank 96-04.
Therefore, the SQUG outlier for 96-04 is resolved.
ATTACHMENTS A. SEWS for Equipment ID Number 96-04 B. The Outlier Seismic Verification Sheet (OSVS) for Equipment ID Number 96-04 FORMAT ¹ NEP-DES-OS, Rev. 01 (F02)
GIP Rev 2, Corrected, 2/14/92 SCREENING EVALUATIONWORK SHEET (SEWS) Status: Yes Sheet 1 of 1 ID: 96-04 (Rev. 1) -
Class: 21 Tanks and Heat Exchangers
Description:
DSA/DG ¹102 START AIR TANK¹1 Building TB Floor El.: 261.00 Room, Row/Col: DG 102 RM Manufacturer, Model, Etc.:
BASIS: External analysis
- 1. The buckling capacity of the shell of a large, flat-bottom, vertical tank is equal to or greater Yes than the demand.
- 2. The capacity of the anchor bolts and their embedments is equal to or greater than the Yes demand.
- 3. The capacity of connections between the anchor bolts and the tank shell is equal to or Yes greater than the demand.
- 4. Attached piping has adequate flexibilityto accommodate the motion of a large, flat-bottom, Yes vertical tank.
- 5. A ring- pe foundation is not used to support a large, flat-bottom, vertical tank. N/A SRT are W. Djordjevic and C. Agosta - Outlier Evaluation In Revision 0, these air start tanks were declared outliers because they use Cinch type leaded anchors which are not covered by the GIP.
External analysis 95C2873-C-003 evaluates the anchorage using data developed by Westinghouse Savannah River (referenced in calculation) and shows a HCLPF PGA equal to 0.55g.
)au Subsequently, bolt tightness checking was conducted on~accessible Cinch anchor installations with only~
failurgto hold tightness. Since this failure rate is Iess4haa.1% and the HCLPF is equivalent to about a 1% failure rate, no reduction factor is applied to Cinch anchors.
Therefore, this equipment is found acceptable for AQ6 design basis purposes and the outlier is resolved. The HCLPF remains at 0.55g PGA.
Evaluated by: Date:
efACHMENZ CALC NO REVISION PAGE NO
I II I 0
ATTACHMENT CANC NO
~ REVISION PAGE NO Response Spectrum: User Frequency: User- 0.00 Percent Damping: User - 0.00 S ectral Values:
Direction Acceleration 's North - South 0.412 East - West 0.396 Vertical 0.129 Angle (N-S Direction makes with the X Axis): 0.00 Combination Criteria: SRSS
~Wei hts:
Number of Weights: 1 No Wei ht X 1 900.00 0.000 15.500 0.000 Forces:
Number of External Forces: 0 Moments:
Number of External Moments: 0 Allowables:It Anchor: I~
Number of Anchor types: 1 Tension Shear Ultimate Ultimate Inter Inter Saf No. Dia Manufact Product Tension Shear Coeff Coeff Fact 1 3/4 Other Unknown 1280.00 2000.00 1.00 0.30 1.00 Expansion Anchor Concrete Ultimate Stress: 3500.00 psi.
Reduction Factor: 0.85 Weld:
Allowable Stress: 30600 psi.
Surfaces:
Number of Surfaces: 1 Surface Orientation Direction Direction Direction Com Com Com Nz 0.000 1.000 0.000
ATIACHMEN CALC NO REVISION PAGE NO Anchor Pattern for Surface ¹ 1 Le end for Anchor Patterns
- ,,;,'. -So)$ ,'
- ,.:;;~
e~xYPo ee':y gn~ -:;~
~Geomet A~echo Number of Anchors: 4 Anch X Surf No Coord Coord Coord ld
%.000 0.000 -24.000
-6.000 0.000 24.000 1 6.000 0.000 -24.000 6.000 0.000 24.000 Concrete Lines
¹ of elements per line: 4 Number of Concrete Lines: 2 Start Start Start End End End Sf Line No X-Coord Yoord Z-Coo rd X-Coo rd Y-Coo rd Z-Coord ld Width 1 %.000 0.000 -24.000 6.000 0.000 -24.000 1 3.000 2 %.000 0.000 24.000 6.000 0.000 24.000 1 3.000
ATTACHMENT CALC NO REVISION PAGE NO Number of Concrete Points: 0 Weld Lines:
¹ of elements per line: 4 Number of Weld Lines: 0 Determination of Reduction Factors:
Reduction Factor Input for Anchor 1 ¹ No Input- Reduction factors needing user input are not used.
Reduction Factor input for Anchor ¹2 No Input - Reduction factors needing user input are not used.
Reduction Factor Input for Anchor ¹3 No Input - Reduction factors needing user input are not used.
Reduction Factor Input for Anchor ¹4 No Input - Reduction factors needing user input are not used.
Reduction Factors Data Current: Yes Anc Pall/ Pallr/
N Id V II Vallr RT RN RL RG RS RE RC RR RP RB RM 1 1 X X X X X X NIA X X X X X X X 2 1 1280.00 N/A X X X X X X X 2000.00 N/A X X X X X X X 3 1 1280.00 NIA X X X X X X X 2000.00 N/A X X X X X X X 4 1 1280.00 NIA X X X X X X X 2000.00 N/A X X X X X X X Le end:
N/A = Not A licable Pall = Allowable Pull without Reduced Ins ection Vali = Allowable Shear without Reduced Ins ection Pallr = Allowable Pull with Reduced Ins ection Vallr = Allowable Shear with Reduced Ins ection
= Outlier
= Reduction Factor Not Used RT = Reduction Factor for T e of Anchora e RN = Reduction Factor for Installation Ade uac RL = Reduction Factor for Embedment RG = Reduction Factor for Ga at Anchors RS = Reduction Factor for S acin RE = Reduction Factor for Ed e Distance RF = Reduction Factor for Concrete Stren th RC = Reduction Factor for Concrete Cracks RR = Reduction Factor for Essential Rela s RP = Reduction Factor for Base Stiffness and P in Action
ATTACHMENT CALC NO REVISION PAGE NO RB = Reduction Factor for Base Stren th and Load Path RM = Reduction Factor for Embed. Steel and Pads Anal sls Results:
Analysis Performed: Yes T of Anal sls: Re uiar S ectral Accelerations G's No N-S E-W Vertical Safet Factor 0.412 0.158 0.052 4.207
-0.412 -0.158 -0.052 5.265
-0.412 0.158 0.052 4.207 0.412 -0.158 -0.052 5.265 0.412 -0.158 0.052 5.265
-0.412 0.158 -0.052 4.207 0.412 0.158 -0.052 4.207
-0.412 -0.158 0.052 5.265 0.165 0.396 0.052 6.839 10 -0.165 -0.396 -0.052 31.784 0.165 -0.396 0.052 34.891 12 -0.165 0.396 -0.052 6.765 13 -0.165 0.396 0.052 6.839 14 0.165 -0.396 -0.052 31.784 15 0.165 0.396 -0.052 6.765 16 -0.165 -0.396 0.052 34.891 17 0.165 0.158 0.129 9.141 18 -0.165 -0.158 -0.129 16.218 19 0.165 0.158 -0.129 9.139 20 -0.165 -0.158 0.129 16.218 21 <<0.165 0.158 0.129 9.141 0.165 -0.158 -0.129 16.218 23 0.165 -0.158 0.129 16.218 24 -0.165 0.158 -0.129 9.139 Minimum Safety Factor: 4.207 The anchorage can withstand 4.207 times greater seismic demand
CAtC NO y REVISION a PAGE NO Niagara Mohawk Power Corporation - Nine Mile Point 1 GIP Rev 2, Corrected 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS) Sheet1 of2 ID: 96-04 (Rev. 0) Class: 21. Tanks and Heat Exchangers
Description:
DSA/DG ¹102 START AIR TANK¹1 Building: TB Floor El.: 261.00 Room, Row/Col: DG 102 RM
- a. Identify all the screening guidelines which are not met. (Check more than one if several guidelines could not be satisfied.)
Shell Buckling Anchor Bolts and Embedment Anchorage Connections Flexibili of Attached Piping Other
- b. Describe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatories would consider this item of equipment to be verified for seismic adequacy).
Air start tanks are anchored to reinforced concrete waH by Cinch (leaded) type anchors. Cinch type anchors are not covered by the GIP.
- a. Defined proposed method(s) for resolving outlier.
Determine realistic bolt load aHowables for Cinch type anchors and compare them to the seismic demand loads, or retrofit anchorage.
- b. Provide information needed to implement proposed method(s) for resolving outlier (e.g., estimate of fundamental frequency).
The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of the outlier issues listed on the previous page will satisfy the requirments for this item of equipment to be verified for seismic adequacy:
Approved by: Date:
CALC NO REVISION Niagara Mohawk Power Corporation - Nine Mile Point 1 Glp Rev 2, Corrected 2/1 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)
ID: 96-04 (Rev. 0) Class: 21. Tanks and Heat Exchangers
==
Description:==
DSA/DG ¹ 102 START AIR TANK¹I Building: TB Floor El.: 261.00 Room, Row/Col: DG 102 RM