ML20129F916

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Rev 1 to Time History for IPEEE for Palisades Site
ML20129F916
Person / Time
Site: Palisades Entergy icon.png
Issue date: 01/17/1994
From:
STEVENSON & ASSOCIATES
To:
Shared Package
ML18065A936 List:
References
C-003, C-003-R01, C-3, C-3-R1, NUDOCS 9610070068
Download: ML20129F916 (23)
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Text

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l ENCLOSURE 4 4

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i Stevenson & Associates Calculation Number C-003, Revision 1 Time History for IPEEE for Palisades Site i

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JOB NO. 92C2750 SHEET #1 l

SUBJECT:

Consumer Power Co.

OF 12 lPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By MSQ 1/Q%

a structural-mechanical consulting engineering firm Chk.7/(T //C/%

Table of Contents 1.

Introduction..

.... 2 2.

IPEEE input Motion Spectrum Shape.

.2 3.

Conversion to Time History..

.4 Reference.

.8 Appendix A-List of Program SCALE 1. BAS l

JOB NO. 92C2750 SHEET #2 S&A

SUBJECT:

Consumer Power Co.

OF 12 l

lPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By M$Q 14/%

a structural-mechanical Chk.7pr//6/'9y consulting engineering firm

1. Introduction This calculation documents the generation of ground motion time histories for use in the Consumers Power Company IPEEE activity. The input motions will be used for the Reactor Building and Auxiliary Building at the Paiisades Site.

The Revised Lawrence Livermore National Laboratory (LLNL) site specific ground response spectra (GRS) define in Ref.1:

P. Sobel," Revised Livermore Seismic Hazard Estimates for 69 Nuclear Power Plant Sites East of the Rocky Mountains," Draft Report for Comment NUREG-1488, October 1993.

is selected as the IPEEE free field horizontalinput motion. Per the FSAR of Palisades Plant [4), the vertical ground motion is taken as two-thirds of the corresponding horizontal ground motion. Artificial time histories consistent with these RS are generated using S&A's SPECTRA program [7]. These time histories have been checked to be statistically independent.

2. IPEEE Inout Motion Spectrum Shane According to the requirement of [2], Section 3.1.1.2 Hazard Selection, the PRA should be performed using the higher of the mean (arithmetic) hazard estimates from Lawrence Livermore National Laboratory (LLNL) [1] and the Electric Power Research Institute (EPRI)[3] Since there is no seismic hazard curve provided for Palisades site in the EPRI report [3], the revised LLNL curves will be used in the subsequent analysis as the IPEEE free field input motion.

As explained in Appendix D, Question and Answer 7.47 of [2), the input ground response spectrum shape should be based on the median spectral shape for a 10,000-year return period. The spectral shapes of the revised LLNL hazard curve are listed in Appendix B of Ref.1 and converted to acceleration units G as shown in the following table. The shape is 5 percent damped. To complete the spectral shape, the median PGA value of 0.06809G is interpolated from Ref.1, the 50% data of Appendix A.

Freq. (Hz) 1 2.5 5

10 25 ZPA Accel. (G) 0.02357 0.07302 0.10280 0.11721 0.11241 0.06809 Table 1 - Revised LLNL 10,000-year Response Spectra 50% Probability for the Palisades Site Per the FSAR of Palisades Plant [4], the vertical ground motion is taken as two-thirds of the corresponding horizontal ground motion. The spectral shape is shown as the solid curve in Figure 1 and 2 with a ZPA level of 0.06809G for horizontal motion and in Figure 3 with a ZPA level of 0.04539G for vertical motion. The ZPA is assumed to start at 40 Hz. The target RS are saved in fw RLLNLH.RS and RLLNLV.RS for horizontal and vertical motions, respectively..

JOB NO. 92C2750 SHEET #3

SUBJECT:

Consumer Power Co.

OF 12 IPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By NSQ \\/6AM-i a structural-mechanical Chk.745//4/9 y consulting engineering firm

)

-a-Hori. TH1 Fit 012 (k,,

--o-- Revised LLNL 50%

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0.10 -

A g

j O.06 f

0.04 -

0.02 0.00 f 4

0 10 20 30 40 50 60 70 80 90 100 Frequency (Hz)

Figure 1 -

IPEEE Response Spectrum and the First Time History FN ar the Palisades Site Based on 10,000-year Revised LLNL 50% Probability for Horizontal Motion 1

o.14 -

a6

-a-Hori. TH2 Fit

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Figure 2 -

IPEEE Response Spectrum and the Second Time History Fit for the Palisades Site Based on 10,000-year Revised LLNL 50% Probability for Horizontal Motion

b JOB NO. 92C2750 SHEET #4

SUBJECT:

Consumer Power Co.

OF 12 IPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By MS'i i/6/%

a structural-mechanical consulting engineering firm Chk. 7N7 //4 /9 y d

4 *-

o.06

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.~,

j o.o4

.t f

-.- Vert. TH Fit o.02 -

--o-Revised LLNL 50%

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0.00 0

10 20 30 40 50 60 70 80 90 100 Frequency (Hz)

Figure 3 -

lPEEE Response Spectrum and the Time History Fit for the Palisades Site Based on 10,000-year Revised LLNL 50% Probability for Vertical Motion

3. Conversion to Time Historv Synthetic time histories are generated from the ground response spectrum using S&A's computer program SPECTRA [7]. The SPECTRA program is capable of converting between different forms of excitation, namely, time histories, response spectra, and power spectra.

First, the RS is imported to the SPECTRA program and stored in the SPECTRA database PASSI. Then SPECTRA is used to convert the response spectrum into time history. The conversion process is straightforward. The parameters used in the conversion are summarized as follows:

Duration 10.24 sec Rise time 2 see Steady state duration 6 sec At 0.01 sec Random seed 324516 for the First Horizontal Time History 452762 for the Second Horizontal Time History 332165 for the Vertical Time History The tri-linear envelope option in SPECTRA is used to generate synthetic time histories (TH), which include a rise time to a constant maximum steady state, and a final decay time equals (Duration - Rise Time - Steady Sta'.e). The total and steady state duration of all time histories are with the range specified on page 3.7.1-5 of the SRP [5].

The SPECTRA program always synthesizes time histories that envelope the target RS conforming to the SRP 3.7.1 [5]. However, for the IPEEE, following the spirit of Seismic Margin Analysis (SMA) or PRA, the conservatism of enveloping is unnecessary. As a result, the TH is scaled down by trial and error to fit the required RS while maintaining the peak of the time history constant. It follows the following procedure

l JOB NO. 92C2750 SHEET #5

)

SUBJECT:

Consumer Power Co.

OF 12 IPEEE/A46 l

STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By /G) 1/6/%

a structural-mechanical Chk'. 7 7 //s /9y I

consulting engineering firm 1.

The time history is exported to file *U.TH I

2.

Run the SCALE 1.EXE program with a scale factor. The SCALE 1 program scales a TH by multiplying the TH by a scale factor but keeps the peak value unchanged. The scales TH file is *S.TH.

3.

Import the scaled TH back into SPECTRA and convert to RS.

4.

Plot the resulting RS against the target. The reritts verify itself.

The scale factors are 0.93 for the first horizontal time hist; ry,0.95 for the second horizontal time history and 0.94 for the vertical time history. The time histories obtained by this process are shown in the Figure 4 to 6 for the first and second horizontal and vertical time histories, respectively. The fit of these RS to their target RS have been illustrated in Figure 1 to 3. Table 1 lists the original and scaled file names of time history.

First Horizontal Second Horizontal Vertical File Name Time History Time History Time Historf original RLLNLH1U.TH RLLNLH2U.TH RLLNLVU.TM i

Scaled RLLNLH1S.TH RLLNLH2S.TH RLLNLV5.TH Table 1 - List of File Name of original and Scaled Time Histories 0.06 0.04 I) l(

6 0.02

)

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0 1

2 3

4 5

6 7

8 9

10 Time (Sec)

Figure 4 -

IPEEE First Horizontal Ground Acceleration Time History for the Palisades Site Based on 10000-year Revised LLNL 50% Response Spectrum Shape i

JOB NO. 92C2750 SHEET #6 l

SUBJECT:

Consumer Power Co.

OF 12 0

IPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By AT) I/6/%

a structural-mechanical Chk.7/47 //4/9y consulting engineering firm 0.06 i

0.04 6 0.02 4

f l

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y -0.04

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0 1

2 3

4 5

6 7

8 9

10 Time (Sec)

Figure 5 -

iPEEE Second Horizontal Ground Acceleration Time History for the Palisades j

Site Based on 10000-year Revised LLNL 50% Response Spectrum Shape 1

0.05 0.04

_ 0.03 I

S 0.02 W/) t ij

(

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2 3

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Figure 6 -

IPEEE Vertical Ground Acceleration Time History for the Palisades Site i

Based on 10000-year Revised LLNL 50% Response Spectrum Shape 4

JOB NO. 92C2750 SHEET #7

SUBJECT:

Consumer Power Co.

OF 12 IPEEE/A46

~

STEVENSON Time History for IPEEE Revision 1 3

& ASSOCIATES C-003 By h%Q l/6/%

a structu? -mechanical l

Chk.

consulting engineering firm Page of 3.7.1-5 of the SRP [5] requires that time histories be statistically independent. Per ASCE standard (6),

time histories whose normalized cross correlation function has a peak value below 0.3 will be considered statistically independent. Table 2 shows the maximum of the normalized cross correlation function for any two original time histories is below 0.3, which is acceptable. Utility program CORRL.EXE is used to compute 4

correlation function for pairs of time histories. Source code of program CORRL.C and the input and output files, CORRLRL.LIS and CORRLRL.CHK, are stored in diskette. Further information about the program CORRL.EXE can be found in Ref. 8.

Time History RLLNLH1S.TH RLLNLH2S.TH RLLNLVS.TH 1

RLLNLH1S.TH 1.000 0.157 0.135

)

RLLNLH2S.TH 1.000 0.161 1

RLLNLVS.TH 1.000 Table 12 - Maximum of Normalized Cross Correlation Function of Time Histories i

1 4

JOB NO. 92C2750 SHEET #8 S&A

SUBJECT:

Consumer Power Co.

OF 12 lPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By MSLt I/6/%

a structural-mechanical Chk.7M7 @ /9 y consulting engineering firm i

Reference i

1.

P. Sobel," Revised Livermore Seismic Hazard Estimates for 69 Nuclear Power Plant Sites East of the Rocky Mountains," Draft Report for Comment NUREG-1488, October 1993.

2.

U. S. Nuclear Regulatory Commission, " Procedural and Submittal Guidance for the Individual Plant Examination of Extemal Events (IPEEE) for Severe Accident Vulnerabilities", Final Report, NUREG-1407, a

l June 1991.

t 3.

Risk Engineering, "Probabilistic Seismic Hazard Evaluations at Nuclear Plant Sites in the Central and Eastem United States: Resolution of the Charleston Earthquake Issue," EPRI NP-6395-D, April 1989.

4.

Consumers Power Company," Final Safety Analysis Report Update of Palisades Plant", Rev.15, April 1993.

5.

U.S. Nuclear Regulatory Commission, Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants", NUREG-0800, Section 3.7.1, August 1989.

i

]

6.

ASCE Standard," Seismic Analysis of Safety-Related Nuclear Structures and Commentary on Standard for Seismic Analysis of Safety Related Nuclear Structures", ASCE 4-86, September 1986.

7.

Stevenson & Associates, " SPECTRA - Users Manual," Version 1.1,1992.

2 8.

Stevenson & Associates," Generation of Artificial Time Histories", Project No. 91C2690, Calculation C-001, Rev.1, May 1992.

l 1

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4

JOB NO. 92C2750 SHEET #9 i

SUBJECT:

Consumer Power Co.

OF 12 IPEEE/A46 STEVENSON Time History for IPEEE Revision 1

& ASSOCIATES C-003 By Mill)/(/%

j a structural-mechanical Chk. @ r M /,y consulting engineering firm Anoendix A - List of Proaram SCALE 1. BAS DEFINT l-N i

DIM th(4096)

PRINT "This program scales a TH (EDASP format) while keeping the ZPA independently to another value" INPUT " Enter the input TH file name"; ti$

l INPUT " Enter the output TH file name"; to$

OPEN ti$ FOR INPUT AS #1 INPUT #1, n, di FOR i = 1 TO n: INPUT #1, th(i): NEXT i CLOSE 1

' Find the maximum of the TH xmas = 0 k=0 FOR i = 1 TO n IF ABS (th(i)) > xmas THEN xmas = ABS (th(i))

k=i END IF NEXTI INPUT " Enter the scale factor"; scal scal = ABS (scal)

PRINT " Enter the correct ZPA value ("; xmas; ")"; : INPUT zpa IF 2pa = 0 THEN zpa = xmas ELSE zpa = ABS (zpa)

FOR i = 1 TO n IF i = k THEN th(i) = SGN(th(i))

  • zpa ELSE th(i) = th(i)
  • scal END IF NEXTi OPEN to$ FOR OUTPUT AS #1 PRINT #1, n; dt FOR i = 1 TO n: PRINT #1, th(i): NEXT i CLOSE1 END

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Consumers Power Company BUILDING : OUTDOOR Palisades Nuclear Plant ELEVATION : GROUND Power Spectrum of IPEEE Time History DIRECTION : HOR 11 MOTION : RLLNL50%S 2.5x10-5

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ENCLOSURE 5 1

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Supporting Documentation for Selected Components Palisades IPEEE i

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Evaluation No.: EA-POC0007899-OSVS-T2 PALISADES NUCLEAR PLANT GIP Rev 2, Corrected 2/14/92 OUTLIER SEISMIC VERIFICATION SHEET (OSVS)

Sheet 1 of 1 ID : T-2 (Rev. 0) l Class : 21. Tanks and Heat Exchangers Desenption : CONDENSATE STORAGE TANK Building : TB Floor El. : 590.00 Room. Row / Col : OUTSIDE Base El. : 590.00

1. OUTLIER ISSUE DEFINITLON - Tanks and Heat Exchangs Identify all the screening guidelines which are not met. (Check more than one if several guidelines could a.

not be satisfied.)

1 Shell Buckling Anchor Bolts and Embedment Anchorage Connections Flexibi!ity of Attached Piping Other X

4 b.

Describe all the reasons for the outlier (i.e., if all the listed outlier issues were resolved, then the signatones would consider this item of equipment to be venfied for seismic adequacy).

t l A rint'-type foundation is used to support a larce. flat-bottom. vertical tank.

l

2. PROPOSED METHOD OF OUTLIER RESOLUTION (Octional) a.

Defined proposed method (s) for resolving outlier.

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b.

Provide information needed to imolement proposed method (s) for resolving outlier (e.g., estimate of y

fundamental frequency).

I I

3. COMMENTS
4. CERTIFICATION:

The information on this OSVS is, to the best of our knowledge and belief, correct and accurate, and resolution of the outlier issues listed above will satisfy the requirements for this item of equipment to be venfied for seismic adequacy:

l 7

M hj Approved by:

/

/

Date:

~~

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5,L/27

[

Owner's Review:

iu Date:

g-1

l,

Evaluation No.: EA-POC0007899-SEWS-T2 PALISADES NUCLEAR PLANT GIP Rev 2 Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 1 of 4 ID : T-2 (Rev. 0) l Class : 21 - Tanks and Heat Exchangers I

Desenption : CONDENSATE STORAGE TANK Building : TB l Floor El. : 590.00 l Room. Row / Col : OUTSIDE l

Manufacturer, Model Etc.

BASIS : External analysis l

1. The buckling capacity of the shell of a large, flat-bottom, vertical tank is equal to or greater Unk than the demand.
2. The capacity of the anchor bolts and their embedments is equal to or greater than the Unk demand.
3. The capacity of connections between the anchor bolts and the tank shellis equal to or Unk greater than the demand.
4. Attached piping has adequate flexibility to accommodate the motion of a large, flat-bottom, Yes vertical tank.
5. A nng-type foundation is not used to support a large. flat-bottom, vertical tank.

No IS EQUIPMENT SEISMICALLY ADEQUATE?

No CDNIMENTS SRT: Djordjevic/Anagnostis Date: 7/7/93 i

REF 1: CPCo Drwg. # C-18-1-2, Rev.1.

REF 2: CPCo Drwg. # C-18, Sh. 41, Rev. 3.

REF 3: CPCo Drwg. # C-37, Rev. 4.

REF 4: CPCo Drwg. # C-38, Rev. 5.

Photo: 5-14 shows typical anchor bolt.

Photo: 5-18 shows typical anchor bolt for T-81 Anchorage: 12 2" anchors in a 14 anchor pattern - 2 anchors not installed due to valve pit. See markup of REF 1 for bolt chairs. REFs 3 &4 indicate that the tank is on a nng foundation. See document for ultrasonic testing of bolt embedment.

Interaction hazard. Tank T-81 is about 3' away. Same height, somewhat smaller diameter, anchored with only 6 3/4" anchors.

Outlier due to a nng-type foundation used to support a large, flat bottom, vertical tank.

Preliminary analysis performed (S&A Calculation # C009, Rev. O or CPCo engineering analysis # EA-POC0007899-T2).

Major Assun,ptions:

1. Bolt tension allowable = 0.24 x Bolt capacity = 25.63 kips.

Minor Assumptions:

1. Height of fluid at the maximum level = 0.93 x tank shell height (actucal maximum level = 0.84 x tank shell height).

Revised analysis should be performed based on the new available information:

1

i Evaluation No.: EA-POC0007899-SEWS-T2 PALISADES NUCLEAR PLANT GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 2 of 4 ID : T-2 (Rev. 0) l Class : 21 - Tanks and Heat Exchangers Desenption : CONDENSATE STORAGE TANK Buildag : TB l Floor El : 590.00 l Room. Row / Col: OUTSIDE Manufacturer. Model. Etc.

1. Maximum water level.
2. Bolt embedment.
3. New soil horizontal and vertical stiffnesses.

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Evaluated by:

Date:

N

&n e, n c 7

Owner's Review:

~,

f 4 !_' 9/'/[

p, Date:

t

/

Attachment:

Pictures

Attachment:

T-2: Ultrasonic Testing of Anchor Bolts 4

b Evaluation No.: EA-POC0007899-SEWS-T2 i

PALISADES NUCLEAR PLANT GlP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 3 of 4 l

ID : T-2 (Rev. 0) l Class : 21 - Tanks and Heat Exchangers Desenption : CONDENSATE STORAGE TANK i

Building : TB l Floor El. : 590.00 l Room. Row / Col: OUTSIDE Manufacturer Mcdel, Etc.

i PICTURES l

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Figure 2: T-81 Bolt and Bolt Chair Detail Figure 1: T-2 Bolt and Bolt Chair Detail

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e 3

Evaluation No.: EA-POC0007899-SEWS-T2 1

PAllSADES NUCLEAR PLANT GIP Rev 2, Corrected,2/14/92 SCREENING EVALUATION WORK SHEET (SEWS)

Status: No Sheet 4 of 4 ID : T-2 (Rev. 0) l Class : 21 - Tanks and Heat Exchangers Desenption : CONDENSATE STORAGE TANK j

Building : TB l Floor El. : 590.00 l Roorn, Row / Col: OUTSIDE j

Manufacturer, Model Etc.

T-2: Ultrasonic Testina of Anchor Bolts Ul'Jasonic testing of Ancher Bo!ts for the SQUG Program 1

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Equip ID

  • T-SL Number of Anchor botts

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2 3

4 5

6 7

8 9

10 11 12 d

D Bolt 6,a. $ $ $ $ $ $ [ [ $ $ _L' $

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i Data taken by A$> b 1 Date r// "'/78 Utrascruc testing performed by Anaa /. f 1,i a Date // 98 Gtrasoruc tester senal number.

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