IR 05000245/1986010
| ML20205B200 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/06/1986 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML20205B176 | List: |
| References | |
| 50-245-86-10, NUDOCS 8608110543 | |
| Download: ML20205B200 (6) | |
Text
Table 1 - DOCUMENTATION REVIEWED PRIOR TO INSPECTION
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Document Description
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A01021 Letter dated 7-7-80 from W.G. Counsil (Northeast Utilities) (NU) to 8 H. Grier (USNRC) transmitting 60 day response including masonry wall log sheets and reevaluation schedule.
A01021 Letter dated 11-4-80 from W.G. Counsil to 8.H. Grier transmitting 180 day response including revised masonry wall log sheets and reevaluation design criteria.
A01021 Letter dated 3-3-81 from W.G. Counsil to 8.H. Grier transmitting status information regarding reevaluation efforts.
- MP-1-1827 Letter dated 7-27-81 from E.J. Mroczka (NU) to B.H. Grier transmitting LER 81-18/3L.
B10313 Letter dated 9-29-81 from W.G. Counsil to 8.H. Grier transmitting status information regarding IEB 80-11 efforts.
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810543 Letter dated 9-24-82 from W.G. Counsil to R.C. Haynes (NRC) providing notification that seven additional walls will require analysis for tornado loading.
l DKN 50-245 Letter dated 9-28-82 from R.A. Clark (NRC) to W.G. Counsil transmitting requests for additional l
information regarding IEB 80-11 activities.
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e 8608110543 860806 DR ADOCK 05000245 PDR l
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Table 1 - DOCUMENTATION REVIEWED PRIOR TO INSPECTION (Cont'd)
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Document Descriotion
Letter dated 12-3-82 from W.G. Counsil to R.A. Clark
transmitting responses to requests for additional
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information.
OKN 50-245 Internal NRC memo from G. Lear to J. Zwo11nski forwarding requests for additional information regarding IES 80-11 activities.
OKN 50-245 Letter dated 7-22-85 from J. Zwolinski (NRC) to J.F. Opeka (NU) transmitting requests for additional information.
DKN 50-245 Internal NRC memo from F.M. Akstulewier to J.A. Zwolinski forwarding notification of a meeting at the NU offices and Millstone plant site to discuss IES 80-11 activities.
DKN 50-245 Meeting summary dated 11-14-85 prepared by F.M. Akstulewicz (NRC) describing meetings held on 10-28,29,30-85 with NU to discuss IE8 80-11 activities.
Letter dated 12-31-85 from J.F. Opeka to C.I. Grimes
(NRC) transmitting responses to questions forwarded on 7-22-85.
OKN 50-245 Letter dated 3-26-86 from F.M. Akstulewicz to
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J.F. Opeka transmitting the NRC Safety Evaluation Report for IE8 80-11 activities at Millstone 1.
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Table 2 - DOCUMENTATION REVIEWED DURING INSPECTION
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Document Descriotion i
WI-1, Rev. 3 CYGNA Energy Services, Inc. (CYSNA) work instruction for the detailed walkdown of masonry walls.
WI-2, Rev. 1 CYGNA work instruction for quality control inspection of walkdowns of masonry walls.
WI-3, Rev. 1 CYGNA work instruction for the reevaluation of masonry walls and design of modifications.
QA-4801 Northeast Utilities Service Co. (NUSCO) audit A01555 of CYGNA at Boston, Ma.
NE0 3.03 NUSCO nuclear engineering and operations procedure regarding the preparation, review and disposition of plant design change requests.
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WI-4, Rev. O CYGNA work instruction for the preparation of general arrangement as-built drawings for masonry walls.
FMR - 9 Field modification request (FMR) regarding the weld at the top of the shear connector for wall T-318.
CWp T-398 Construction work package (CWP) for wall modifications to masonry wall T-39B.
CWP T-44 CWP for well modifications to masonry wall T-44.
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Table 3 - Calculation Packages Reviewed
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Cale. No.
Wall Eley, (ft)
Field Inspection 1/M000 Generica 2/M000 Generieb l
3/M001 T-30 34'-6" Yes
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3/M004 T-44 34'-6" Yes 3/M006 T-398 34'-6" Yes 3/M013 T-26B 36'-6" Yes 4/M028 T-24A 36'-6" Yes 4/M0029 T-24B 36'-6" Yes 4/M030 T-24C 36'-6" Yes 4/M035 T-316 34'-6" Yes
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7/M102 T-27A,B,C D, 34'-6" Yes
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i NOTE:
a.
This is a group of generic calculations used to develop standard tables that were later used in the reevaluation of
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the masonry walls.
The following sections were audited by i
l review of the calculational approach and appropriateness of the results.
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Table 3 - Calculation Packages Reviewed (Cont'd)
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Sec. 1 - Areas and weights sec. 2 - Moments of inertia Sec. 3 - Shear reduction at boundaries for 15 and 20 hz.
Sec. 4 - Allowable shear loads Sec. 6 - Allowable spans Sec. 12 - Conduit weights and Hilti Kwik Bolt allowables Sec.13 - Effective moments of inertia for solid block b.
This is a group of generic calculations for several standard modification designs which were applied to various masonry walls.
The following sections were audited by review of the calculational approach and appropriateness of the results.
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Sec. 0001 - Transfer of shear loading (unreinforced walls)
Sec. D002 - Modification of span length Sec. 0003 - Beam connection design Sec. 0007 - One-sided angle connection Sec. 0006 - Transfer of shear loading (reinforced walls)
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Table 4 - MASONRY WALLS FIELD VERIFIED
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V Wall Elevation (ft).
Location T-30 34'-6" Turbine 81dg.
T-44 34'-6" Turbine 81dg.
T-398 34'-6" Turbine 81dg.
T-268 36'-6" Turbine Bldg.
T-24A,B,C 36'-6" Turbine Bldg.
34'-6" Turbine Bldg.
T-318
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T-23A,B,0,E 25'-6" Turbine Bldg.
T-18A,B,C 14'-6" Turbine B1dg.
T-27A.B.C, 34'-6" Turbine 81dg.
D E,F T-21A C 14'-6" Turbine 81dg.
R-130,E 65'-6" Reactor Bldg.
RB-30
'8'-0" Reactor 81dg.
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R-188 82'-9" Reactor 81dg.
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