ML18026A516

Forwards Response to Addl SER Questions Generated During Structural Engineering Branch Review.Responses Complete Action to Close SER Outstanding Issue 5

ML18026A516
Person / Time
Site:	Susquehanna
Issue date:	05/14/1981
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Youngblood B Office of Nuclear Reactor Regulation
References
PLA-759, NUDOCS 8105190284
Download: ML18026A516 (12)

Text

REGUl AT INFOHHATIOIV DISTHIBUTION TEA (RIDS)

ACCESS IOH !49R: 8105190284 DUC.DATE:

8 2/05/24 NOTAR I ZED:

NO FACIL:50-3a7 Susquehanna Steam Electric Station~

Uni t 2> Pennsyl va 50-308 Susquenanna Steam Electric Station~

Unit 2s Pennsylva AUT!i~ NA~E AUTHvH AFFLLIATION CURTIS<'J AH.

Pennsylvania Power 4 light Co.

REC I P ~ '4Ailh, RECIr'Ic.il I AFFILIATION YOUNGBLOUDrB.J.

!icens)ng Branch 1

SUBJECT:

Forwards response to addi SER questions generated during Structural Engineering branch reviews Responses complete action to close Sc.R Outstanding Issue S.

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TWO NORTH NINTH STREET, ALLENTOWN, PA.

18101 PHONE:

(215) 821.5151 NORMAN W. CURTIS Vice Presioenr Engineering & Conerrucrion 821-5381 May 14, 1981 cg t

~ajm 4'O>~ >c<~

Mr. B. J. Youngblood, Chief Licensing Branch No.

1 U.S. Nuclear Regulatory Commission Washington, D.C.

20555 Docket Nos.

50-387 50-388 SUSQUEHANNA STEAM ELECTRIC STATION SER OPEN ITEM 55 ER 100450 FILE 841-2 PLA-759

Dear Mr. Youngblood:

Attached are the responses to additional questions generated during the Structural Engineering Branch review of Susquehanna.

These responses complete our action to close SER Outstanding Issue 5.

Very truly yours, N.

W. Curtis Vice President-Engineering and Construction-Nuclear CTC/mks Attachment.

yooi

/(

PENNSYLVANIA POWER 8

LIGHT COMPANY

SUBJECT r.M'

)

Poisson's ratio = 0.3 Vs

...e Radius of Circular base mat = 50 ft.

Shear Modulus = Q Vs Shear Wave Velocity = 6200 ft./sec.

Mass density of foundation mediun = 4.3478E-3 k.sec /ft4 (Y= 140 1bs/cft.)

Vs Vs Vs Vs Vs 5vs 10Vs k

=

4. 78E07 k/ft.

k

=

1.912E08 k/ft-1.195E09 k/ft.

k

=

4. 78E10 k/ft.

WP26/25-2

l'.Yf-<<l '8 J2 1

Table-2:

CDNPAXHMEHP: Vertical Seismic Mcdel Flexible Base Vs. Fixed Base Frequencies.

(

)

Frequencies (Cps)

Vs 6200 &/sec.

16. 19

17. 24 Flexible Base 5Vs 17.45 17.47 Fixed Base

17. 48 20.95 23.18

24. 09 24.23

24. 28 38.24 38.63 38.75 38.77 38.78 Table-3:

CCFZAENMEK". Vertical Seismic Model Flexible Base Vs. Fixed Base Modal Damoin 0 Critical Modal Damping

(% Critical)

Vs =

6200 ft/sec.

9.3 2V 5.3 Flexible Base 5Vs 5.0 10V 5.0 Fixed Base 5.0

.9. 1 6.1 5.0 5.0 5.0 5.0 5.1 5.0 5.0 5.0 WP26/25-3

Table I',AY "4 ~>

Ceynummr:

Axial Forces (SSZ) (ki

)

See Figure 3.7b-8 of FSAR, (Attachnent 41) for lccation of members.

Member 10 12 13 15 17 18 19 20 Vs =

6200 ft/sec.

14.5 84.7 239.9 412.2 576.5 734.5 866.9 991.5 1095.4 1319.0 1479.1 1611.6 1701.4

34. 9 127. 3 201.3 843.4 899.6 759~

799.1 2V 21.8 127. 5 360.7 617.9 860.7 1090.8 1280. 4 1454. 3 1595. 9 1773.8 1968.3 2107.5 2177.3

34. 8 126. 3 197. 3 842. 7 895.0 727. 5 762. 2 Flexible Base 5Vs 22.2 130. 0 367.7 629.1 874.9 1106.6 1296. 1 1468.5 1607.5 1774.7 1956.7 2078.2 2128.2 33.1 119. 6 185. 9 787.2 835.9 680.6 712.5 21.9 127. 7 360.8 617.0 857.7 1084.3 1269. 5 1437. 7 1573. 1 1733.2 1909.4 2025.5 2071.5 31.7 114.3 176.9 743.4 789.3 642.5 672.5 Fixed Base 21.9 127. 8 361.1 617.6 858.4 1085.1 1270.3 1438.4 1573.7 1733.2 1908.7 2024.0 2069.0 31.6 113.8 176. 2 739.6 785.2 639.2 669.1 m 26/25-4

TABLE-4 (Corot'd)

Hemher 21 22 23 25 26 27 28 29 30 Vs =

6200 ft/sec. 829.5 845.3 602.9 602.9

76. 9 234. 2 418.5 1701.3 845.3 83.2 2V 786. 9 797.2 611.5 611.5

78. 2 238.4 426.1 2177.3 797.2 82.6 Flexible Base 5Vs 734.8 743.3 571.5 571.5

73. 2 223.1 398.4 2128.2 743.3 10V 693. 5 701.5 540.0 540.0

69. 3 211.0 376.6 2071.5 701. 5

77. 1 Fixed Base 689. 9 697.8 537.3 537.3

68. 9 209.9 374.7 2069.0 697. 8

77. 5 WP26/25-5

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>9 J.I'PV VZ*C'Hsaev + I.

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MASS POINT Cl NODE POINT NUMBER 0 MEMBER NUMBER 0 SPRING NUMBER 7901'4 738.1' Qs Qe CI 718.1'e 03

-763.1'IS 759.1'ACTOR SHIEL

'Qs 739.1' Qe 729.8'17 Q7 716.1'60m Ws 745.1'38.3'P

~P 710.1' 3

0 702.3" 9

Q7 g2 Q9 Qo Q11 SUPPRESSION CHAMBER WALL Qi 673.1'02 Q3 038

+19 Qo RPV PEDESTAL Qo Q

ew.e Q3 Q3, Q

31 SUSQUEHANNA STEAM ELECTRIC STATION

'UNITS 1 AND 2 FINAL SAFETY ANALYSISREPORT VERTICALSEISMIC

~.

MODEL OF CONTAINMENT WITH FLEXIBLEBASE FIGURE 3 ~ jb-8 ql

'g V