ML20205B997

Seismic Analysis Rept Spent Fuel Storage Racks

ML20205B997
Person / Time
Site:	South Texas
Issue date:	10/06/1988
From:	Linder R, Stokey W U.S. TOOL & DIE, INC.
To:
Shared Package
ML20205B783	List: ML20205B997 ML20205C402 ML20205C435 ML20266C885 ML20266C888 ST-HL-AE-2817, Forwards Revised Us Tool & Die,Inc Documents Re Revised Spacing of High Density Spent Fuel Storage Racks from 0 Gap to 1 Inch,Per 880929 Commitment.W/Two Oversize Drawings
References
NUDOCS 8810260358
Download: ML20205B997 (7)

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TELEPHONE (412)4e7 7030

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u. V i TOOL # Olt U. B. TOOL G, DIE, INC.

4030 ROUTE 8 e ALLISON PARK, PENNSYLVANIA 15101 REVISION 7 10-5-88 SEISMIC ANALYSIS REPORT (NOT A DESIGN CHANGE)

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[/ . . Q. /o p/gg SPENT FUEL STORAGE RACKS FOR SOUTil TEXAS STATION - UNITS 1 & 2 IlOUSTON LIG!! TING & POWER COMPANY 8709-00-0042 PREPARED FOR BECitTEL ENERGY CORPORATION llOUSTON, TEXAS +0 Cw, F

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AUGUST, 1987 [ohumnuag g e.g .

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REVISION I 9/15/87 t ?'

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( PREPARED BY d M _ DATE 0 8- 05 8 7 REVISION 2 10/6/87 .

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YO ESIGli liA11 E) g APPROVED BY _/ e2</ DATE_8/7/97 Managfr of Enginocring

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(Not A Design Chango) C Quality At3branco Manager b, Nn J/q///_/

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$ REVISION 5 4/18/88 REVISION 6 6/9/88 (NOT A DESIGN CllANGE) gf,p/d (Not a Design Chango) gfg<jf sGz% @%v du,. nae wn

I ItEVISION 4 CilANGES DATED FEBRUARY 17, 1988

1. TAllLE OF CONTENTS EDITORIA!,

PROVIDED SUBSITTluta TITLES, 7.0, APPENDIX C.

ADDED ATTACllMENTS

2. SECTION

2.0 INTRODUCTION

REVISED "WRITE-UI':

3. SECTION 3.3,

SUMMARY

OF RESULTS EDITORIAI, SOURCE DATA PROVIDED FOR TABLE 3.1 EDITORIAL TABI.E 3.2

4. SECTION 4.0, REGION 2, 132-CELL, EDITORIAL SINGLE DENSITY (199.50") pages 36, 59a

5. SECTION 6.0, REGION 2, 132-CELL, EDITORIA1.

CONSOLIDATED FUEL (201.3125") FORMAT pages 1-14

6. SECTION 7.0, REGION 1, 48-CELL, EDITORIAL DRY FUEL STORAGE (201.3125*) TABLE 7.1, pages 20,23,24

7. APPENDICES AFTER SECTION 7.0 REMOVED APPENDIX A,

'l PART II APPENDIX G, COMPUTER PRINTOUT PROVIDED SUBTITLES

8. ATTACHMENTS ADDED REVISION 5 , CHANGES DATED APRIL 18, 1988

1. SECTION 2.0, INTRODUCTION ADDED A NOTE ADOllT UST&D DRAWINGS 2.

SECTION 7.0 (ELEMENT FLEXIBILITY) PAGE 23, SUBSECTION 7.

PROVIDED ADDITIONAL, DESCRIPTION REVISION 6 DATED JUNE 6, 1988 ADDED PROFESSIONAL ENGINEER STAMP TO SIGN-OFF PAGE REVIS10N 7 CHANGES DATED OCTOBER 5,1988

1. SECTION 2.1.1 HYDRODYNAMit COUPLING RACK-10-RACK GAP REV. 1"

2. SECTION 3.3

SUMMARY

OF RESULTS MINIMUM GAP = 4"

3. TABLE 6B.1, Pg 2 MINIMUM GAP = 4" 4 TABLE 7.1 Pg A3 ALLOWABLE DISPLACEMEt4T =

5. FIGURE 2.2 EN'T0kkHbigACK-10-RACK

boxes. They are all locally fusion welded together without the local raised coined areas. A poison assembly is inserted and locked into each of the narrow rectangular boxes. Region 1 pitch is 10.95" as shown in Figure 2.5.

g . C - 10(Sl80 2.1.1 HYDRODYNAMIC COUPLING 1

All racks are installed with:a 1" gap, rack-to-rack, because the very strong hydrodynamic coupling, forces the racks to move together even when considering adjacent racks, one full and the next one empty. The water in the rack - rack gap acts to force the racks in line to move in unison. If two racks are modeled they would be coupled to each other in the same manner the fuel is coupled to the racks,1.e. , using hydrodynamic masses 3

Based on Case #13 from Fritz (Ref. 03) MH " ph b/12S (where h & b are rack face dimensions, S is the gap and p is the 6

density of water) , a 1" gap results in MH = 2.62x10 pounds.

Rack to wall gaps are used to assess the hydrodynamic coupling between the rack array and pool walls.

I 2.2 MATilEMATICAL COMPUTER MODEL Initially Region 2 racks had 6 levels of box fusion welds. The computer analysis was performed using 6 lumped masses for the rack, which represented 6 box fusion weld locations. This was changed to 8 levels of box fusion welds. To simulate this effect a computer test model was developed, using 8 i lumped masses for the 132-call rack. Loads for the test run were obtained from Section 6.0, consolidated fuel, EAST-WEST '

SSE condition because EAST-WEST SSE loads are higher than the NORTH-SOUTH SSE loads. 1 I

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r i. a REDONl EA. S7DRAGE = 268 N N 5E Y m O

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} PEGioM 2 EA. STORAGE =l6 81 -hbO MSOLt4*T7at S7tvi>Gr = 3.342 > $i

l BA. SToMAG E = 196 9 ~ D b 0 (The rack-to-wall gaps shown nn this figure and us,ed in t'*e, , ,

y,3,gt ggfg jgg, o ,m analysis are greater than the actual installation dimensions.

Serefore, the calculated hydrodynamic coupling forces are 7 y- Z _

smaller than those forces actually experienced by the racks.) '

FIGURE 2.2

J.3

SUMMARY

oF DESULTS FoH 1 3 2 - c k, t. t, HACK, REQIoN 2. 218mLL nu.mtfY Tha summary of forcac in Tcblo 3.1 for Sat fl, Sat f5 and the fTable 3.2) friction forbes4are taken directly from the computer printouts included in Appendix G, Section GS.1, pages GS.5 through G5.72.

FRICTION The friction forces are the maximum horizontal forces developed at the base of the rack for the friction factor of 0.2.

OBE 50780 LB.

SSE 50780 LB.

PEDESTAL The maximum forces on one pedestal for the seismic disturbances are for the 112-eell rack. The following are SRSS values taken from Ta bl e 3. 2 ', S e t f4.

VERTICAL (lbs) HORIIONTAL(lbs)

OBE 160881 52355 SSg 229164 88423 MOVEMENT AT BASE The maximum values for other outputs from Table 3.1, Set i5 arn:

SSE Elastic Displacement 0.275 in. 132-cell rack East-West Sliding Displacement 0.480 in. 132-cell rack North-South Lift-off  : 0.04 in. 132-cell rack North-South I

OBE Elastic Displacement: 0.165 in. 132-cell rack North-South Sliding Displacement 0.259 in. 132-cell rack East-West i Litt-off  : 0.0 in. 132-cell rack East-West & North-Sou ALLOWABLE DISPLACEMENT

= 5 (oBE) + 1 (ssE) cz. t. /5/8 8

= 5 (0.259 inches) +1 (0.480 inches) 7

= 1.775 inches maximum displacement "' We, . -

Is less than 4" minimum gap provided at North end, between the pool and the rack. (Fiq. 2.2) 1 1

i (3.4)

TAtLE 6B.1, Pece 2

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• Cf_ SET f4: KAXIMUN FONCES ON A PEDESTAL. (IsS)

1. 78 agy VERTICAL Hog g g,,ygygg, (FVT/2) (Fht/2)

NS - Ont 51022 46420 t w - unt: 87407 70055 Y - osE  !!9594 0 SRss 263265 84039 NS - SSE 96277 86615  :

IW - Sst 273152 112445 V - SSE 167431 0 SMss 441129 141937 DWT = 490460 LB 18F: PA0E 6-Ja BF = 64087 LB SVT = 426373 LB MAXIMUM FRICTION FORCES (LB) 0 0.2 FACTOR NS - OBE 85270 ,

EW - OBE 85270 NS - SSE 85270 EW - SSE 85270

• • • SET f 4 VALUES ARE HALF SET #3 VALUES.

SET #5: HOVEMENT AT SA8E (tubes) 314871C (205-SLillpC) SL18tpC LIFTOFF l (DISPLACEMNT) (FAICTION) (VitTICAL)  !

I NS - OBE 0.1786 .1803 0.0 ,

EW - OBE 0.3494 .1565 0.0 NS - SSE 0.319; .9638 o,o EW - SSE 0.5609 .4644 o,1310 l

ALLOWABLE DISPLACEMENT f

= 5 (OBE) + 1 (SSE) l

= 5 (.1803) + 1 (.9638)

= 1.8653"40 4", WHICH IS THE MINIMUM CAP AT NORTH END, BETWEEN THE POOL AND THE RACK.

• REGION 1, 48-CELL, DRY FUEL STORAGE d ' * 'W/88 TABLE 7.1 (ctnt) LENGTH = 201.3125" 7 o** SET #41 MAXIMUM FORCES ON A PEDESTAL (LBS)

A W7 e.. ng,'

VERTICAL HORIZONTAL (TVT/2) (ThZ/2)

NS - OBE 32395 12255 EW - OBE 31525 17850 V - OBE 27900 0 SRSS 81735 21658 NS - SSE 42580 25395 EW - SSE 52775 32550 V - SSE 39060 0 SRSS 106871 41285 SET #5: MOVEMENT AT BASE (inches)

ELASTIC (NON-SLIDING) SLIDING LIFT 0FF (DISPLACEMENT) (FRICTION) (VERTICAL)

NS - OBE 0.02649 1.1400 0.0051 EW - OBE 0.03869 0.4743 0.0083 NS - SSE 0.05483 0.7338 0.0739 EW - SSE 0.07055 0.5315 0.1504 MAXIMUM FRICTION FORCES (LB) USING 0.2 FACTOR NS - OBF 22890 EW - OBE 22890 NS - SSE 27140 EW - SSE 26660 DWT = 114463 LB REF: SECTION 7. PAGE 8 BF = F/A l SVT = N/A i ALLOWABLE DISPLACEMENT 5 (OBE) + 1 (SSE) {

5 (1.14) + 1 (0.7338) 6.4338" MAX SLIDING DISP.(24" MINIMilM RACK-TO-RACK CAP IN THE PHASE I INSTALLATION.

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OVERSIZE DOCUMENT l PAGE PULLED l SEE APERTURE CARDS .

l NUMBER OF OVERSIZE PAGES FILMED ON APERTURE CAFiDS a .

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ATTACHMENT 2 REVISED UST&D DRAVINGS (SUBMITTED IN REFERENCE 4, ATTACHMENT 2);

8709-60; INSTALIATION PLAN PilASE II 8709-01; INSTALLATION PIAN PHASE III l

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ATTACHMENT 3 REVISED PAGES TO UST&D SPENT FUEL RACK HANDLING AND INSTALIATION INSTRUCTIONS (SUBMITTED IN REFERENCE 4. ATTACHMENT 3 l

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