ML19257B266

Forwards NRC Sample Calculation Comparing Use of Transverse Shear Force Directly from Stardyne Output W/Calculations from Displacement & Rotation Output from Same Analysis. Certificate of Svc Encl

ML19257B266
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	01/09/1980
From:	Broehl D PORTLAND GENERAL ELECTRIC CO.
To:	Schwencer A Office of Nuclear Reactor Regulation
References
TAC-12369, NUDOCS 8001150440
Download: ML19257B266 (8)

Text

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.i January 9, 1980 Trojan Nuclear Plant Docket 50-344 License NPF-1 Director of Nuclear Reactor Regulation ATTN:

Mr. A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Sir:

As indicated in our response dated December 31, 1979 to NRC Staff Ques-tion 6 of December 29, 1979 regarding LER 79-15, attached is a sample calculation which compares the use of transverse shear forces directly from the STARDYNE output with those calculated from displacement and rotation output from the same analysis. This completes our response to NRC Staff Question 6a.

Sincerely, Nh Y

4 c:

Mr. R. H. Engelken, Director U. S. Nuclear Regulatory Commission Region V Mr. Lynn Frank, Director State of Oregon Department of Energy gk 5i,1 1749 298 9

8001150

Mr. A. Schwencer Januaqr 9,1980 Attachment INTERSTORY DRIFT The following provides justification for the use of transverse shear forces directly from the STARDYNE computer output in lieu of displacement and rotation output from the same analy-sis.

This completes our response of December 31, 1979 to NRC Staff Question 6a.

Element #300 from the STARDYNE model, which is a panel of wall 46 in the Auxiliary Buildling between el. 61' and 77' is selected for the purpose of illustration.

The following nodal displacements and rotations in the boundary nodes of element 300 are taken from STARDYNE run for the N-S OBE motion.

The first mode output quantities are considered below for purposes of illustration.

X 3 1

273 274 Element #300 268 269 X 2 DF-10 1749 299

Mr. A. Schwencer January 9, 1980 Attachment Interstory Drift

• ) age 2 Node # l Displacement IAverage Displ.l AX 1 Rotation 0 l Average 0 I

1 l

X (ft) l X

(ft) 1 (inch) 1(X5) (radian))

(radian) l 1

i I

I I

I I

I n

i I

I I

I I

273 1 2.39 x 10-3 l

l l 2.48 x 10-5 ;

a l

i 2.12 x 10-3 l

l l 2.82 x 10-5; 274 l 1.85 x 10-3 l

l l 3.16 x 10-5 ;

I l

1 84 x 10-4I I

I 268 l 1.41 x 10-3 l

l l-2.47 x 10-5 g ob l

l 1.42 x 10-3 l

l l-0.34 x 10-5; 269 l 1.42 x 10-3 l

l l 1.79 x 10-5 ;

I I

I I

i i

The out-of-plane displacements and rotations, as obtained above from the STARDYNE analysis (N-S motion, 1st mode) will be used to calculate the transverse shear force in the element by appli-cation of the following beam formulae:

A M

6EIA 1

1 1

2EIO 4EIO 2

I 1

2 0

1 0

A g

1 2

l 4

\\

/,e r

1 i

g l

+

+

\\

1 s

02 l

\\,

y' 2

2EIO1 2

_.1-

= 6EIA 3

M M

=

=

1 2

0 1

0 E

g 1

2 DF-10 1749 300

Mr. A. Schwencer January 9, 1980 Attachment Interstory Drift Page 3 1

= 16 ft = 192 in.

t

= 16 in.

E

= 4.20 x 10 k/ft2 = 2.917 x 106 5

psi I

=1-- x 12(16) 3 = 4096 in.4 12 b

= 19.25 ft (panel width)

= 6EIA M

1 2

g

, 6(2.917)(10)6(4096)(84)(10)-4 = g y g_4 2

192 4EIO 1

1 M

=

A 01

= 4(2.917)(10)6(4096)(2.82)(10)-5 192

= 7.02 in-kips D

2 1

M

=

1 0 1

= 3.51 in-kips 4EIO 1

2 M

=

1 0 2

, _4(2.917)(10)6(4096)(0.34)(10)-5 192

= -0.85 in-kips D

2 2

M

=

L 62

= -0.42 in-kips DF-10 1749 301

Mr. A. Schwencer Janury 9, 1980 Attachment Interstory Drift Page 4 Final moment at top:

1 1

M1=M

-M

-M 02 1

01

= 16.35 - 7.02 - (-0.42) 9.75 in-kips

=

Final moment at bottom:

2 2

M2=M

-M

-M 0

0 1

1 2

= 16.35 - 3.51 - (-0.85) = 13.69 in-kips Calculated transverse shear:

y=M1+M2 1

= 9.75 + 13.69 16 x 12

= 0.122 kip /ft width of wall Transverse shear force from STARDYNE:

Node #

Shear Panel Total Shear k

273 2.17 k

k 274 0.25 TOP k

268

-2.51 k

BOTTOM

-2.42 k

269 0.09 DF-10 1749 302

Mr. A. Schwencer Januaqr 9,1980 Attachment Interstory Drift Page 5 2.42 Hence, shear =

19.25

= 0.126 kip /ft width of wall The calculated value is approximately 3% below that obtained from STARDYNE.

This confirms our response of December 31, 1979 to NRC Staff Question 6a relative to the use of transverse shear forces from the STARDYNE analysis in lieu of displacement profile for the purpose of calculating transverse shear forces due to interstory displacements.

DK-10 1749 303

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of

)

)

Docket 50-344 PORTLAND GENERAL ELECTRIC COMPANY,

)

et a1

)

(Control Building Proceeding)

)

(Trojan Nuclear Plant)

)

CERTIFICATE OF SERVICE I hereby certify that on January 9,1980, Licensee's letter to the Director of Nuclear Reactor Regulation with additional information relative to LER 79-15 has been served upon the persons listed below by depositing copies thereof in the United States mail with proper postage affixed for first class mail.

Marshall E. Miller, Esq., Chairman Atomic Safety and Licensing Appeal Atomic Safety and Licensing Board Panel U. S. Nuclear Regulatory Commission U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Washington, D. C.

20555 Dr. Kenneth A. McCollom, Dean Docketing and Service Section (3)

Division of Engineering, Office of the Secretary Architecture and Technology U. S. Nuclear Regulatory Commission Oklahoma State University Washington, D. C.

20555 Stillwater, Oklahoma 74074 Joseph R. Gray, Esq.

Dr. Hugh C. Paxton Counsel for NRC Staff 1229 - 41st Street U. S. Nuclear Regulatory Co= mission Los Alamos, New Mexico 87544 Washington, D. C.

20555 Atomic Safety and Licensing Board Lowenstein, Newman, Reis, Axelrad & Toll Panel 1025 Connecticut Ave., N. W.

U. S. Nuclear Regulatory Cennission Suite 1214 Washington, D. C.

20555 Washington, D. C.

20036 1749 304

CERTIFICATE OF SERVICE Frank W. Ostrander, Jr., Esq.

Mr. David B. McCoy Richard M. Sandvik, Esq.

348 Hussey Lane Assistant Attorney General Grants Pass, Oregon 97526 State of Oregon Department of Justice Ms. C. Gail Parson 500 Pacific Building P. O. Box 2992 520 S. W. Yamhill Kodiak, Alaska 99615 Portland, Oregon 97204 Mr. Eugene Rosolie William Kinsey, Esq.

Coalition for Safe Power Bonneville Power Administration 215 S. E. 9th Avenue P. O. Box 3621 Portland, Oregon 97214 Portland, Oregon 97208 Columbia County Courthouse Ms. Nina Bell Law Library 728 S. E. 26th Avenue Circuit Court Room Portland, Oregon 97214 St. Helens, Oregon 97051 Mr. John A. Kullberg Route 1, Box 250Q Sauvie Island, Oregon 97231

-7 Sup,e/lp A. Zimmer=an nvisor of Licensing Generati/n Licensing & Analysis Portland / General Electric Company Dated: January 9, 1980 4sa66.27Bil 1749 305