ML17262A558

Forwards Rev 1 to EWR 5327, Design Verification Ginna Station Containment Foundation Mat Analysis in Response to 910625 Request for Addl Info Re Containment Integrity

ML17262A558
Person / Time
Site:	Ginna
Issue date:	07/11/1991
From:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
To:	Andrea Johnson NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
Shared Package
ML17262A559	List: ML17262A558 ML17262A560
References
TAC-80494, NUDOCS 9107230241
Download: ML17262A558 (14)

Text

),AC'f~ELERATED .

ISTB2BUTION DEME TPATION SYSTEM-REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR: 9107230241 DOC. DATE: 91/07/11 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244-AUTH. NAME AUTHOR AFFILIATION MECREDY,R.C. Rochester Gas & Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R. Project Directorate I-3 R

SUBJECT:

Forwards Rev 1 to EWR 5327, "Design Verification Ginna StatioContainment Foundation Mat Analysis," in response to 910625 request for addi info re contaa.nment integrity.

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ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER N.Y. 14649-0001 ROBERT C MECREDY TELEPHONE Vice President AREA COOE7tB 546 2700 Cinna Nuclear Production July 11, 1991 U.S. Nuclear Regulatory Commission Document Control Desk Attn: Allen R. Johnson Project Directorate I-3 Washington, D.C. 20555

Subject:

Ginna Containment Integrity Request for Additional Information R.E. Ginna Nuclear Power Plant Docket No. 50-244 (TAC No. 80494)

Dear Mr. Johnson:

This letter transmits to you the additional information requested by you in your June 25, 1991 letter (TAC No. 80494).

Table 1 presents all the load cases and parametric variations on properties and boundary conditions that have been analyzed in this evaluation. RG&E believes that the true behavior of the cylinder ring beam connection is bounded by "Run Names" RGE08 to RGE12 inclusive (refer to Table 2). These runs simulate resp-ectively a truly pinned connection, increasing variations in radial restraining moment, and a fully fixed condition. The fully fixed condition is judged not to exist based on the physical examination of the neoprene and based on the historically consistent results of the tendon lift off tests.

As an additional means of judging the integrity of the containment, RG&E compared the results of the analyses for the condition of fully pinned to fully fixed for the assumption of sliding and no sliding (Run Names RGE08 to RGE12 and RGE14 to RGE20 respectively). Table 3 presents the results of all those compar-ison of the critical moments considered in the UFSAR load combin-ations to the ultimate section capacities.

Figure 1 is a graph of radial displacements vs moment for the full range of base rotational resistance due to internal pressure.

They demonstrate the response of the structure for the sliding and non-sliding boundary conditions. As can be seen, the upper bound for both deflection and moment is at the pinned condition, and decreases as rotational resistance increases.

Figures 2 is a plot of radial displacements of the containment for RGE08 (pinned), RGE12 (fixed), and the results of the original Structural Integrity Test (SIT). Also shown are the displacements 910723024l nporr, nrnooK 9l07ll onooo24+

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for was RGE03. RGE03 is the lower bound for displacements because run with the hoop stiffness assumed to be based on an uncracked it concrete section. RGE08 and RGE12 are predictably higher than this case since these analyses were done with the hoop stiffness based on the reinforcing steel alone, which is orders of magnitude less than an uncracked section. ,As expected, the,SIT results are between these values because the actual stiffness at the test condition, is a combination of cracked and uncracked sections.

With this as an introduction, the specific issues will now be addressed.

Issue 1

cases, In reference 2, it is stated (p. 5 of the report), "For all the results have shown no more than 10> increase from the original design value". The staff review of attachment 1 of reference 1 indicates that at 3 ft. above the base, the magnitude of the meridional moments can be larger than twice the original design value and under some conditions (fixed) they could be in the opposite direction. Provide justification for 10~ claim in the statement.

~Res ense Table 2 presents a comparison of the meridional moments obtained from the parametric analyses to the values listed in the UFSAR. The results of these analyses were compared to the moments at the critical section in the cylinder which are listed in the UFSAR. The critical section for the cylinder is ten (10) feet above the ring beam. The results of those comparisons for all analyses are shown in Table 2. As can be seen, the effect of increasing rotational stiffness is a decrease in moment at the critical section. The results for the bounding cases (cases RGE08 to RGE012) are shown to be below the UFSAR values. A review of all other computer runs shows that the maximum increases is about 10%

which occurs in run RGE14. This case is similar to RGE12 except that additional conservatism is added. Elastic elongation of the tension rods is not permitted which is not considered represen-tative of actual behavior. The 104 increase stated in the January 28, 1991 letter was intended to apply to those moments at the critical section only.

below.

A discussion of the response at the 3 ft. level is given Issue 2 Provide interaction diagrams for negative meridional moments (liner in tension). Provide comparison of meridional moments found in the reanalyses that you have already performed for various base conditions against the capacity at 3 ft. and 6 ft. above the base.

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5

~Res onse The interaction diagram for negative meridional moment was transmitted to you in our April 8, 1991 letter. The "Tendon Only" curve is applicable for resisting negative moments. Table 3 presents the comparison of meridional moments to section capaci-ties. As can be seen in Table 3, the capacity of the section is exceeded for only two cases, both of which are a fully fixed condition. RG&E does not consider this a concern because the "fixed" condition with no sliding cannot be physically achieved and the load combinations in which they occur include a factored internal pressure of 90 psi (504 greater than design).

Issue 3 In the above comparisons where the capacity falls short of the demand induced by the appropriate load combination, provide the necessary justification for assuring containment integrity and propose what physical evidence can be obtained about the true base condition during an integrated leak rate test.

~Res onse The subject of capacity versus induced moments is discussed above.

The results of the original Structural Integrity Tests have been reviewed. One data point at which radial displacement was measured was at 4 inches above the base. A second data point for the same measurement was at 72 inches above the base. The measured displacements at the 72 inch point and all points above are positive outward. The displacement at the 4 inch point is negative inward. The tension bars at the joint are located approximately 12 inches above the base. These measured displacements above and below the tension bars would imply that a rotation about the bars had occurred. Although the rotation itself was not measured, we have extrapolated a value, based on the radial displacements to be approximately 0.20 degrees.

The analytical results for a fully pinned condition indicate a rotation at the base of less than 0.20 degree. Since a fully pinned condition is achieved with this small rotation, the extrapolated rotation from the SIT implies that the response of the containment was as designed and no negative moments can be developed in the section.

The graph, Figure 2, displays the expected behavior of three models in relation to the SIT results. RGE03 (pinned, sliding base, uncracked concrete) matches fairly closely the SIT results near the base where you would not expect much cracking due to the presence of the radial tension bars. At higher elevations, RGE03 understates the displacements because there is cracking. The results of RGE09 (pinned, sliding base, cracked concrete) and RGE12 (fixed sliding base, cracked concrete), overstate the displacements

~ ~

at all locations, as expected, but are closer to the SIT values at higher elevations.

~Issue 4 Provide calculations (or results of computer output) for maximum shear stresses in the basemat of the containment under hydrostatic pressure due to highest groundwater level to be considered in the design, and how the thinnest basemat sections can withstand the shear stresses.

R~es ouse Attachment A transmits the analysis of the base slab in which concrete shear stresses are checked and are shown to be within allowable values.

Very truly yours, Robert C. Me redy LAS/231.ADD xc: Mr. Allen R. Johnson (Mail Stop 14D1)

Project Directorate I-3 Washington, D.C. 20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road Ginna Senior Resident Inspector

4

'Fr Case Reference Chart- Shell Model Run Name Load . Applicabto Base Boundary Conditions Material Pro rtios Cases Loads Modulus Poisson (1) (I) Tie-Rods Tangential Vertical Rotational Radial Meridional Ciicumforencial Domo Ratio ft-Ibs/ft Sl sl si RGEOI D,PS,P,2E 2E Inacbvo Fixed Fixod Frco Fixed 4.10E+06 4.10E+06 Un cracked 0.15 SEISMIC ONLY RGE02 D,PS,P,2E 2E inactive Free Fixed Froe Fixed 4. IOE~06 4.10Ei06 Uncra eked 0.15 RGE03 D PS,P,2E 2E Acbve Free Fixed Free Free 4.10EG06 4 IOEG06 Uncracked 0.15 CONSTANT HOOP ,PS;P,2~8. nacbvo Fixed Free Fixed 4.10EE06 3btBISi9 ncracked REINFORCEMENT RGE05 D.PS,P,2E D.PS.P Inactive Free Fixod Free Fixed 4. IOE~06 3418@9 Uncrackod RGE06 D,PS(P,2E D PS P Ac6ive Free Fixod Froo Froo 4,10EEO6 SSIS 9 Uncrackcd SEISMIC ONLY 07 5,)sS.)',2E 2 Acbve Unor 2 Fixod Froe Free 4.10E+06 4.10E+06 Uncrackod 0.15 PINNED 08 ,P5;P,Z~ S,P Acdvo Fix Fixed Free Froe 4.10E>06 R ebar Vanos racked RADIAL ROTATIONAL IEGEDF D.PS,P,2E D,PS,P Active Fixed Fixed 3.00Etpt Free 4.IOEt06 R obar Varies Cracked RESISTANCE RGE10 D,PS,P.2E D,PS.P Acdivo Fixod Fixed 9.00EGOI Free 4. IOEG06 R ebar Varies Cracked SLIDING INCREASING ) RGEI I D.PS,P,2E D,PS,P Active Fixod Fixed 3.00EG02 Free 4. IDES 06 R char Varies Cracked FIXED FiWIEO AGEI2 IIGE44 D PS,P,2E OPS,P,2E D,PS.P D,PS,P Activo Inacdvo Fixed Fixed Fixed Fixod Fixed Fmo fiee Fixed 4JGE 4.10Et06 DA R obar Varies R obar Varios Cracked Cracked NO ROTATIONAL RGE15 D.PS,P,2E D,PS,P Inactive Fixed Fixed 3.DOE+01 Fixed 4.10EG06 R char Varios Cracked RADIAL RESISTANCE RGE16 D,PS,P,2E D,PS,P Inactive Fixed Fixed 9.00E<OI Fixed 4.10E ~06 R ebar Varlos Cracked INCREASING RGE17 D,PS,P,2E D.PS.P Inactive Fixed Fixod 3.00EI02 Fixed 4. IOE<06 R obar Varies Cracked SLIDING FIXED RGEIE DPSP2E .I DPSP Inactive Fixed Fixod Fix d Fix d 0 0 R ba Vaiio Cracked RGE20 lpga Active Free Fixod Froo (90-180')Fxd 4.10Er06 4 IDEAS Uncrackcd 0.15 SEISMIC ONLY RGE21 D,PS,P,2E 2E Inacbve Free Fixed Free (72-180o)Fxd 4.10Ei06 4 IOEE06 Uncracked 0.15 RGE22 D,PS,P,2E 2E Inacbvo Free Fixed Free (81-180')Fxd 4.10EI06 Rebar Varies Cracked 0 (I) D Dead Weight (2) Uner ~ The tangenbal stiHnoss associated with tho PS To Tendon prestress stool containment liner P 60 psi Intomal Prosuro TABLE 1

TABLE 2 (60 PSIG INTERNAL PRESSURE ONLY)

MERIDIONAL HOMENT (FT-KIPS/FT)

COHPUTER I MOHENT I PERCENT OF I MOMENT I PERCENT OF I RUN AT (

UFSAR I AT I UFSAR COHMENT I NAME I 10 FT I VALUE I 15 FT I VALUE I I

-I I RGE01 I 129 8 I 53-3 I 101.5 I RGE02 129.8 (

53.3 I 101.5 I RGE03 99.3 4o.s (

7s.5 I 32.2 I RGE04 258 I 105.9 I 249.7 I 102.5 RGE05 258 (

105.9 (

249.7 I 102 ~ 5 I P

I I RGE06 223.8 I 217.1 I 89.1 I-RGE07 99.4 40.8 I 12.7 I 5.2 I RGE08 231 ~ 8 I 95.2 I 223.8 (

91 ~ 9 I PINNED CONDITION I

-I RGE09 217. 7 I 89.4 I 216 I 88.7 ( ORIG. DESIGN COND. (ODC)

RGE10 191.5 I 78.6 I 202.5 I 83.1 (

THREE (3)X(OOC) HOHENT RGE11 100.1 I 41.1 I 155.3 I 63.8 (

TEN (10)X(ODC) MOHENT RGE12 -26.2 (

-10.8 (

90.9 (

ROTATION FIXED RGE14 268.8 ( 110.3 I 259.5 I 106.5 I SIHILAR TO RGE08 NO SLIDING I

-I RGE15 254.4 104.4 I 206.8 I 84.9 ( SIHILAR TO RGE09 NO SLIDING RGE16 234.7 I 96.3 (

244 ' 100.2 ( SIHILAR TO RGE10 NO SLIDING (

-I RGE17 1SS 63 6 I 208.3 I 85.5 I slHILAR TQ RGE11 No sLIDING

-I RGE18 -3s.1 I 15.6 I 121.3 I 49.8 I SIHILAR TO RGE12 NO SLIDING

-I RGE20 46.4 I '88.7 I 36 ~ 4 I UFSAR - 243.8 FT-K/FT AT 60 PSI AT TEN FEET

4

~

~ TABLE 3 LOAD COHBINATION 29 "a" MERIDIONAL MOMENT FT-K/FT (1.0*DL) + (1 ~ 0*VP) + (1.0*OTw) + (1.5*IP) + (1.0*AT90)

I ROTATIONAL ILOCATION I HOHENT- PERCENT I MOMENT- PERCENT I I BASE I ABOVE I SLIDING IULTIMATE I NO SLIDING IULTIMATE I FIXITY IBASE(FT) PERMITTED ICAPACITY PERMITTED CAPAC I TY I I I I

I 3 158 I 24.7 I 185 28.9 I FREE 6 I 282.9 I 32.5 I 328. 1 37.7 I (PINNED) 10 I 373.2 I 42.9 I 428.7 49.3 I

---

I 15 401 I 46.1 I 454.5 I 52.2 I

---

I I 120 I 18.8 I 149 I 23.3 I I

0 FT-K/FT I 252.5 I 29 I 301.1 34.6 I I

I 10 351 ~ 9 I 40.4 I 411.6 47.3 I

I 15 389.3 44.7 I 446.8 51.4 I 3 46 I 72 I 78 12.2 I

90 FT-K/FT I 6 I 194 3 I 22.3 I 246.9 2s.4 I I

I 10 I 312.8 I 36 I 377.4 I 43.4 I I-I 15 I 369 I 42.4 I 431.4 I 49.6 I 3 -212 I 33.1 I

-173 I 27 I

I300 FT-K/FT 6 9.5 I 1.5 I 57.55 6.6 I

---

I 10 I 20.2 I 257.9 I 29.6 I I 15 I 298.2 I 34.3 I 377.6 43.4 3 -574 I 89.7 I

-780 121.9 I FIXED 6 I -293.4 I 45.8 I 401 ' I 62.7 I 10 I

-14 I 22 I

-31.9 I 5 I 15 I 201.6 I 23.2 I 247.2 I 28.4 I DL = DEAD LOAD IP = INTERNAL PRESSURE (60PSI)

VP = TENDON PRESTRESS AT90 = ACCIDENT PRESSURE (90PSI) T = 312 F OTw = OPERATING TEMPERATURE WINTER 1/4

TABLE 3 LOAD COHBINATION 31 "b" HERIDIONAL MOHENT FT-K/FT (1.0*DL) + (1.0*VP) + (1.0*OTs) + (1.5*IP) + (1.0~AT90)

I ROTATIONAL ILOCATION I HOHENT- I PERCENT I MOHENT- PERCENT I BASE I ABQVE I SLIDING IULTIHATE I NO SLIDING IULTIHATE FIXITY IBASE(FT) I PERMITTED I CAPAC I TY I PERMITTED I CAPACITY I I

I 3 184 I 28 ' I 211 33 I I I- ----I I FREE I 6 312.4 I 35.9 I 357.6 (PINNED) I I I 10 I 385 I 44.3 I 440.5 50.6 I I I-I 15 I 372.2 I 42.8 I 425.7 48.9 I I 3 146 I 22.s I 175 27.3 I I

I 30 FT-K/FT 6 I 282 I 32.4 I 330.6 I 38 I I

I 10 I 363.7 I 41.8 I 423.4 I 48.7 I I

I 360.5 I 41.4 I 418 I 48 I I

---

I I 72 I 11.3 I 103 I 16.1 I I

I 90 FT-K/FT 223.8 I 25.7 I 276.4 31.s I 10 I '24.6 I 37.3 I 389.2 44.7 I I-I= 15 340.2 I 39. 1 I 402.6 46.3 I

---

I 3 I -186 I 29.1 25.9 I I I I300 FT-K/FT I 6 2OI 23I 87 I 10 I I I I 10 I 187.4 I 21.5 I 269.7 31 I I I

- ---I I I 15 269.4 I 31 I 348.8 40.1 I I

3 I

-548 I 85.6 I

-754 117.s I FIXED I 6 I 263.9 I 41 ~ 2 I 372.3 I 58.2 I 10 I -2.2 I 0.3 I 20 I 2.3 15 I 172.8 I 19.9 I 218 I 25.1 I DL = DEAD LOAD IP = INTERNAL PRESSURE (60PSI)

VP = TENDON PRESTRESS AT90 -" ACCIDENT PRESSURE (90PSI) T = 312 F OTs = OPERATING TEMP. SUHHER 2l4

TABLE 3 lg LOAD COHBINATION 41 "c" MERIDIONAL MOMENT FT-K/FT (1.0*DL) + (1.0*VP) + (1.0*OTw) + (1.0*IP) + (1.0*AT60) + (2.0*E)

ROTATIONAL i LOCAT ION MOHENT- PERCENT )

HOHENT- PERCENT BASE I ABOVE SLIDING IULTIMATE I NO SLIDING iULTIMATE 1

FIXITY /BASE(FT) PERHITTED ICAPACITY I PERMITTED ICAPACITY I I I I 00 I 15.6 I 118 I 18.4 I

FREE I 6 I 184.3 21.2 i 214.5 24.7 )

(PINNED) I- I 1

253 29.1 ) 290 ) 33.3 1 I I 15 286.4 32.9 i 322.1 37 I 75 94 I 14.7 I

30 FT-K/FT 18.9 i 196.4 22.6 I

I 10 238.8 I 27.4 I 278.6 )

32 )

I I I 15 278.6 i 32 )

317 I 36.4 25 t 3.9 )

46 I 7.2 90 FT-K/FT 125.2 14.4 160.3 .18.4 l-I 10 212.7 (

24.4 255.8 I 29.4 I

I 15 265.2 I 30.5 I 306.8 35.3 (

-I I

"147 i 23 -120 18.8 l-300 FT-K/FT I 6 -10.7 1.7 I 34.1 3.9 f I -I 10 121.2 13.9 I 176.1 20.2 I-15 217.9 I 25 I 270.9 l 388 I 60 6 I

-525 82 )

I- I FIXED I -199.9 31.2 )

-272.2 I 42.5 I-I 10 -5.2 I 0-8 I

-17. 1 I 2.7 I I-I 15 153.6 183.9 21.1 DL = DEAD LOAD IP "-INTERNAL PRESSURE (60PSI)

VP = TENDON PRESTRESS AT60 = ACCIDENT PRESSURE (60PSI) T -" 286 F OTw = OPERATING TEMPERATURE WINTER E

"-0.10 G EARTHQUAKE HORIZONTAL + VERTICAL sl4

TABLE 3 LOAD COHBINATION 43 "d" HERIDIONAL HOMENT FT-K/FT (1 '*DL) + (1.0*VP) + (1.0~OTs) + (1.0*IP) + (1.0*AT60) + (2.0*E)

I ROTATIONAL I LOCATION HOHENT I PERCENT HOHENT- I PERCENT I BASE ABOVE SLID I NG I ULT IMATE NO SLIDING IULTIHATE I I FIXITY IBASE(FT) PERMITTED ICAPACITY PERMITTED ICAPACITY I I I I I 125.8 I 19.7 I 144 22.5 I I I-I FREE I 213.8 I 24.6 244 I 28 I I (PINNED) I-I I 10 264.8 I 30.4 301.8 34.7 I I I- -I I I 15 . 257.6 I 29.6 293.3 33.7 I I

-I I 3 100 I 15.6 119 18.6 I I I- -I I 30 FT-K/FT I 6 I 193 ' I 22.2 225.9 26 I I I- -I I I 10 250.6 I 28.8 290.4 33.4 I I- -I I I 15 249.8 I 28.7 288. 2 I 33.1 I I- I I I 51 I 8 I 72 I 11.3 I I I-I 90 FT-K/FT I 154.7 I 17.8 189.8 21.8 I I I- -I I 10 224.5 I 25.8 267.6 I 30.8 I I- -I I 236.4 I 27.2 278 I 32 I

-I 3 121 I 18.9 -95 I 14.8 I I- -I I FT K/FT I 6 18.8 I 2.2 63.6 I 7.3 I I I- -I I I 10 133 I 15.3 187.9 21 ~ 6 I I I-I I 15 189.1 I 21.7 242.1 I 27.8 I I- -I I 3 363 I 56-7 -500 78.1 I

I- -I I FIXED 6 170 ' I 26-6 -242.7 37.9 I I I- -I I I 10 6.6 I 0.8 -5.3 I 0.8 I I I- -I I

'l5 124.8 I 14.3 155.1 I 17.8 I DL = DEAD LOAD IP = INTERNAL PRESSURE (60PSI)

VP = TENDON PRESTRESSS AT60 "- ACCIDENT PRESSURE (60PSI) T = 286 F OTs = OPERATING TEHPERATURE SUMMER E = 0.10 G EARTHQUAKE HORIZONTAL + VERTICAL 4/4

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DISPLACEMENT. (IN.)

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FIGURE 1

STRUCTURAl INTEGRITY TEST

~ RGE03 RGE08 o RGE12 I 5 LLL M5 LLl O4 Cl X4 I

C9 LLJ 10 A2 S3 .4 S5 RADIAL DISPLACEMENT (IN.)

CONTAINMENT RADIAL DISPLACEMENT FIGURF 2

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