ML20050A701
| ML20050A701 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/23/1982 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Carey J DUQUESNE LIGHT CO. |
| References | |
| IEB-80-81, TAC-42858, NUDOCS 8204020094 | |
| Download: ML20050A701 (5) | |
Text
l d
6 p
Distribution:
Docket No. 50-334 M 23 Docket File NRC PDR Local PDR g
ORB #1 Rdg g3,\\
'S DEisenhut
/
Mr. J. J. Carey, Vice President 0 ELD e, -
Duquesne Light Company OI&E (1) h
~R Nuclear Division DChaney L--
- {f Post Office Box 4 NChokshi, SEB-r-
Shippingport, PA 15077 CParrish
\\
4 NSIC N
Dear Mr. Carey:
ACRS (10) y JHel temes y
x The staff has reviewed your responses to IE Bulletin 80-11 regarding niasonry wall concerns at Beaver Valley Power Station, Unit No.1. This review has resulted in the determination that additional infomation is needed before the review can be completed.
It is requested that you provide the information listed in the enclosure to this letter by pay 3,1982. Please contact your assigned Project Manager if you have any questions regarding this request, or if you determine that you cannot meet the requested response date.
Sincerely.i :13 nod ty t Origirn S. A. Varca Steven A. Varga, Chief Operating Reactors Brar.;h #1 Division of Licensing
Enclosure:
Request for Additional Information cc: See next page ht:0RB#1 Ol'iORB{
su m ur)
..DCha n ey,:ms SA,V, r a f 3/>2/82 3DS7h2
...o 8204020094 820323
$DRADOCK05000
>FFICIAL RECORD COPY u n o.i m -a w m hacs
..... ~ -.
Mr. J. J. Carey Duquesne Light Company cc:
Mr. H. P. Williams Mr. J. D. Sieber, Manager Station Superintendent Nuclear Safety and Licensing Duquesne Light Company Duquesne Light Company Beaver Valley Pcwer Station Nuclear Division Post Office Box 4 Post Office Box 4 Shippingport, Pennsylvaaia 15077 Shippingport, Pennsylvanie 15077 Mr. T. D. Jones, Manager Resident Inspectoi Nuclear Operations U. S. Nuclear Regulatory Commission Duquesne Light Company Post Office Box 298 Post Office Box 4 Shippingport, Pennsylvania 15077 Shippingport, Pennsylvania 16077 Ronald C. Haynes B. F. Jones Memorial Library Regional Administrator - Region I 663 Franklin Avenue U. S. Nuclear Regulatory Commission Alicuippa, cannsylvania 15001 631 Park Avenue King of Prussia, Penns.v' 'ania 19406 Gerald Charnof f, Esquire Jay E. Silberg, Esquire Shaw, Pittman, Potts and Trowbridge 1800 M Street, N.W.
Washington, D.C.
20036 Karin Carter, Esquire Special Assistant Attorney General Bureau of Administrative Enforcement 5th Floor, Executive House Harrisburg, Pennsylvania 17120 Marvin Fein Utility Counsel City of Pittsburgh 313 City-County Building Pittsburgh, Pennsylvania 15219 Mr. John A. Levin Public Utility Commission P.O. Box 3265 Harrisburg, Pennsylvania 17120 Irwin A. Popowsky, Esquire Office of Consumer Advocate 1425 Strawberry Square Harrisburg, Pennsylvania 17120 Charles A. Thonas, Esquire Thomas and Thomas 212 Locust Street Box 999 Harrisburg, Pennsylvania 17108
__-.--.--ma---
- ~ ~ "
=""-A g
Ii TECHNICAL EVALUATION
}
A technical evaluation of the Licensee's evaluation criteria and proposed l
modifications was conducted and th2 following concern was identified:
the Licensee's responses to IE Eulletin 80-11 must be ccmplete to facilitate proper evaluation. The values for allowable bending stress and shear stress used by the Licensee in Attachment D of Reference 4 deviate from the
- ~!I allowables calculated according to Table 10.1 of'ACI S31-79 [10] using the
!I values for m and f ' specified by the Licensee in Table 3.1 of Reference I
O m
- l 7.
More inf ormation is also needed on the Licensee's analysis for determining 1
ll the stress at the collar joints, ar.d the allowable tensile and shear strees values used for the collar joints should be justified. The Licensee has not provided a schedule for the proposed modifications for the walls.
Ecfore a
.l final technical evaluation report can be issued, the Licensee is required to provide the following information:
\\>
1.
Attachment D of Reference 4 gives the values for allowable bending stresses (66.7, 53.2, 22.8) and shear stresses (72.2, 57.3, 40.9).
These val.ues deviate from the respective allowables calculated using
-table 10.1 of ACI 531-79 [10] using the ma and fm' values specified by the Licensee in Table 3.1 of Reference 7.
Provide i,
proper justification for these deviations. Also, explain why different allowable stresses are used in Attachment D [4] for the l'
cable vault for the same type of masonry (mo = 2500 psi, f ' "
m 1500 psi).
ii 2.
With reference to Section 5.1 of Attachment H, Reference 7, provide justification for an increase factor of 1.67 for extreme environmental loads to obtain the allowable stresses. The SEB criteria [8] allow an increase factor of 1.3 for tension normal to the bed joint and masonry chear and 1.5 for tension parallel to the i.
bed joint and reinforcement shear for the case of extreme i
environmental loads.
3.
With reference to Attachment D of Reference 4 and Section 2.0 of 1
attachment H, Raference 7, provide sample calculations to indicate k
the following:
i a.
how collar joint stresses were determined b.
how the effect of higher modes were considered how the temperature and pressure differential loads were I
c.
calculated d.
how the boundary conditions were represented how the effects of wall openings were considered.
e.
I
_._ c ::7m
.._m..
j-a i
i 1-i; 4.
With reference to the collar joint strength in tension and the shear assumed in Attachment D of Reference 4, provide justification and test data (if available) on the allowable tensile and shear stresses in collar joints applicable for the type of masonry walls at Beaver Valley Power Station Unit 1.
I 5.
With reference to the proposed modification for the walls int'cated-f in the attachment to Reference 6, provide sketches and confirmatory analysis to indicate the adequacy of these modifications.
g j.
6.
Provide legible copics of drawings indicating the locations of j'
safety-related masonry walls in the auxiliary building, cable vault, j(
fuel and decontamination building, and service building of Beaver.
l.
Valley Power Station Unit 1.
Location plans for auxiliary building caronry walls included in Attachment A of Reference 3 are not legible.
ii 9
"?,. Provide a schedule for the proposed wall modifications.
i 6
t.
I' 1.
l'
$1 t
c U
F t
i 6
e 4
t l
t
..rN-w 'w he muur-
-h--
.- n ~
~~.w, u...~-..a
~ -
.a w a a
- :... ; x.. n u :, a w.. v 2a
- k e
>i C
REFERENCES 1.
Masonry Wall Design USNRC, 08-May-80
+IE Dulletin 80-11 2.
C. N. Dunn Letter to B. H. Grier, NRC.
Subject:
Deaver Valley Power Etation, Unit No. 1 - IE Bulletin No. 80-11; 60-Day Ecsponse to Items 1, 2a and 3 (Attached)
Duquesne Light, 37-Jul-80 1-Il 3.
C. N. Dunn Letter to D.
II. Grier, NRC.
Subject:
Beaver Valley Power i'
Station, Unit No. 1 - IE Bulletin 80-11; 100-Day Response
[ e!
(Attached) l Duquesne Light, 31-Oc t-80
{
h.
4.
C. N.
Dunn 4
Letter to B. H. Grier, NRC.
Subject:
Bec ar' Valley Fower Station, Unit No. 1 - IE Bulletin 80-11; Supplemental Response (Attached)
Duquesne Light, 02-Feb-81 4
5.
C. N. Dunn Letter to D. H. Grier, NRC.
Subject:
Beaver Valley Power Station, Unit No. 1 - IE Bulletin 80-11 Duquesne Light, 23-Feb-81 l
6.
C.
N.
Dunn Letter to D. !!. Grier, URC.
Subject:
Beaver Valley Power Station, Unit No. 1 - IE Bulletin 80-11; Final Response (Attached) i Duquesne Light, 13-Mar-81 7.
J. J. Carey Letter to B. 11. Grier, NRC.
Subject:
Deaver Valley Power Station, Unit No. 1 - IE Dulletin 80-11; revisions to 1-Attachments E and II to report dated November 4,1980 Duquesne Light, 10-Jul-81 i
4 8.
Interim Criteria for Safety-Related Masonry Wall Evaluation
[
USNRC, 00-July-81 SRP 3.8.4, Appendix A 9.
Uniform Building Code International Conference of Building Officials, 1979 1
10.
Building Code Requirements for Concrete Masonry Structures Detroit: American Concrete Institute, 1979 ACI 531-79 and ACI 531-R-79 f
1 4A 00ctj Franklin Research center ace.ma n.r m ninau.
e n
oc e
a-
--ee-a n-m
---py-m-.
e
+
eme-7
m-s.
9
-wyay,---p
,-,;e,
-m-p we wem vn re wy-
-+
wga-7y-g
=
+M w
w g,-wew+---w-e-,*-mcWw m-ew
-wWe1 eg-w