ML18004B673
| ML18004B673 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 01/05/1987 |
| From: | Mckay J CAROLINA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML18004B670 | List: |
| References | |
| OL, NUDOCS 8701120269 | |
| Download: ML18004B673 (21) | |
Text
Attachment 3
INVESTIGATIVE TESTING FOR RESOLUTION OF PETITIONERS'LLEGATION SECTION II, ITEMS 3
& 4, PAGE 13 (SHEAR PLATES)
DATED OCTOBER 17$
1986 DOCKET NAKER 50-400 OL REPORT BY:
JOSEPH W.
McKAY 87011202b9 870105 PDR ADOCK 05000400 P
PDR (1304NEL/mmh)
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t Attachment 3"
SCOPE AND BACKGROUND The objective of this analysis was to address the allegation of material substitution and documentation falsification as it pertains to the emergency service water intake structure (ESWIS) traveling screens'shear plates".
The shear plates were installed to provide full bearing for the traveling screens'rames where the embedded guides were out of alignment.
The term "shear plate" is correct since the plates are attached to the concrete walls with expansion anchors and serve only to restrain movement of the frame to the north due to the water flow by transferring shear load to the anchors.
The plates are designed to be fabricated of ASTM A-36 rolled plate.
The plates were located based on elevation and spacing from the downstream face of the frames.
TEST PROCEDURE AND RESULTS To confirm material type, it was decided to use hardness tests which would be correlated to tensile strength and then compared with that for A-36 steel.
A representative sample of 20 plates was selected.
Ten were selected from Bay 6 and 10 from Bay 8.
Five of these were selected from each of the two guides in each bay with three selected above the water line and two below, reflecting the part of the guides above and below the normal water level.
Bay 6 and 8 were de-watered to the extent necessary for in-place hardness testing and sampling.
In-place hardness testing was performed by CP&L Materials Lab personnel with an Equotip Portable Hardness
- Tester, Serial No. 480844, using the "D" impact device.
Hardness values are obtained as L values and converted into Brinell hardness numbers.
Shear plate placement locations and in-place hardness testing results are presented in Table l.
(1304NEL/mmh)
Attachment 3
In addition to the in-place hardness testing by CP&L, Law Engineering Testing Company (LET) was requested to perform hardness testing of the same plates to provide independent verification of test results.
Tests were performed using a New Age Industries Metal Tester and a standard penetrator.
Tests were performed by LET personnel Donald B. Chandler and Connie Boyette.
Values were obtained using a standard penetrator (D2) and the impact load procedure.
An ocular glass scale was used to measure the impression left by the test specimen.
Results indicated a
Brinell hardness range of 130 to 164.
Test results are presented in Table 2.
To provide additional verification of the material type, test specimens of each of the eight below water level plates were taken for lab testing.
Each specimen removed was divided in half with one half retained for
- testing, and the second half turned over to the NRC Resident Inspector for his information.
Tensile test specimens were prepared and tested in accordance with ASTM A 370, "Mechanical Testing of Steel Products".
Testing of the eight ESW shear plate tensile specimens was performed on a Tinius Olsen Universal Testing Machine, Serial No. 128625.
Tensile test results of the eight ESW shear plate specimens are presented in Table 4.
Laboratory hardness testing was also performed on sections obtained from the eight submitted ESW shear plate samples.
This testing was conducted to provide data for correlation between the hardness and tensile strength of the shear plate material.
Laboratory hardness testing was performed on a Wilson/Rockwell Hardness
- Tester, Series 500, Model 524-T, Serial No. 80565503.
The results of these hardness tests are presented in Table 3.
The range for hardness for ASTM A-36 material, using the Brinell hardness scale, is 119 to 159.
The tensile range is 58,000 to 80,000 psi.
A review of the test results shows that the plates tested within accepted tolerances for A-36 plate material, with the exception of minor test deviations which were well within the design allowables for the plate application.
(1304NEL/mmh)
1
Attachment 3
To address the allegation of document falsification, two parts of the allegation subject to verification were checked.
These were the cutting of reinforcing steel and plate relocation.
While the bays were de-watered, the physical location of each plate subjected to material verification was also checked.
A comparison of the
- design, accepted, and as-built locations is presented in Tables 6 and 7.
Plate locations match the approved design and show no indication of relocation.
The period during which the document falsification was alleged to have taken place was 1982-1983.
A total of 1167 "Q" expansion anchor placements were made during this period based on site records.
As a part of the required inspection, the inspector verified whether or not rebar had been cut or damaged and noted this on his inspection report.
Of the 1167 placements, only 50 indicated cut rebar.
A check of the design documents which were referenced on the inspection reports as permitting or accepting the cut rebar revealed all were in order and all properly approved.
In summary, the actual accepted field conditions for cut rebar and shear V
plate locations matched the approved design with no evidence of document falsification.
(1304NEL/mmh)
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Attachment 3
TABLE 1 RESULTS OF CP&L IN-PLACE HARDNESS TESTS PLACEMENT NUMBER EQUOTIP L NUMBER BRINELL NUMBER Bay 6 East Wall 1IS190032 1IS190034 lIS190035 1IS190037'IS190038 378 378 375 381 391 125 125 123 127 134 Bay 6
West Wall 1IS190042 1IS190043 1IS190044 1IS190047 1IS190048 383 380 387 383 395 129 126 131 129 137 Bay 8 East Wall 1IS190009 1IS190011 1IS190014 1IS190015 1IS190017 400 417 409 390 398 140 152 146 133 138 Bay 8 West Wall 1IS190020 1IS190022 1IS190024 1IS190026 1IS190029 407 413 417 415 390 145 149 152 151 133 ASTM A-36 119-159 (1304NEL/mmh)
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TABLE 2 Attachment 3
(Cont'd)
RESULTS OF LAW ENGINEERING IN-PLACE HARDNESS TESTS PLACEMENT NUMBER Bay 6
East Wall EQUIV. BRINELL 1IS190032 1IS190034 1IS190035 1IS190037 1IS190038 135 147 130 142 145 1IS190042 1IS190043 1IS190044 1IS190047 1IS190048 Bay 6
West Wall 142 146 130 152 147 1IS190009 1IS190011 1IS190014 1IS190015 1IS190017 Bay 8
East Wall 145 145 142 151 132 1IS190020 IIS190022 1IS190024 1IS190026 1IS190029 Bay 8 West Wall 142 164 151 145 130 ASTM A-36 119-159 (1304NEL/ccrc)
Attachment 3
(Cont'd)
TABLE 3 RESULTS OF CPGL IN-LABORATORY HARDNESS TESTS PLACEMENT NUMBER 1IS190037 1IS190038 1IS190047 1IS190048 1IS190029 1IS190017 1IS190026 1IS190015 PLATE DESIGNATION 211-6-E-001B 204-6-E-002B 216-6-W-001B 204-6-W-002B 200-8-W-002B 202-8-E-002B 217-8-W-001B 218-8-E-001B ROCKWELL
- HARDNESS, Rb 72 73 75 71 82 74 BRINELL HARDNESS NUMBER 130 135 132 135 137 127 156 135 ASTM A-36 119-159 (1304NEL/ccrc)
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Attachment 3
(Cont'd)
TABLE,4 RESULTS OF CP&L IN-LABORATORY TENSILE TESTS PLATE DESIGNATION TENSILE YIELD POINT PSI ULTIMATE TENSILE, PSI 211-6-E-001B 204-6-E-002B 216-6-W-001B 204-6-W-002B 200-8-W-002B 202-8-E-002B 217-8-W-001B 218-8-E-001B 40,800 41,840 41,800 41,000 39,200 34,000*
38,200 39,800 66,000 63,878 66,800 64,000 65,600 63,400 641200 64,800 ASTM A 36 Min.
Max.
36,000 580000 80,000 Within design allowables for plate application.
(1304NEL/ccrc )
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Attachment 3
(Cont'd)
TABLE 5 ESWIS SHEAR PLATE MATERIAL TEST
SUMMARY
BRINELL HARDNESS TENSILE CP&L LAB PLACEMENT East Wall CP&L FIELD LET FIELD CP&L LAB (ps')
YIELD (ps')
ULTIMATE Bay 8 lIS190009 Bay 8 1IS190011 Bay 8 1IS190014 Bay 8 lISI90015 Bay 8 lIS190017 West Wall 140 152 146 133 138 145 145 142 151 132 135 127 37,600 34,000 64,800 63,400 Bay 8 1IS190020 Bay 8 lIS190022 Bay 8 lIS190024 Bay 8 lIS190026 Bay 8 1IS190029 East Wall Bay 6 lIS190032 Bay 6 1IS190034 Bay 6 1IS190035 Bay 6 1IS190037 Bay 6 1IS190038 West Wall 145 149 152 151 133 125 125 123 127 134 142 164 151 145 130 135 147 130 142 145 156 137 130 135 37,600 38,000 38,000 38,000 64,200 65,600 66,000 63,878 Bay 6 lIS190042 Bay 6 lIS190043 Bay 6 IIS190044 Bay 6 1IS190047 Bay 6 1IS190048 129 126 131 129 137 142 146 130 152 147 132 135 39,400 38,500 66,800 64,000 (1304NEL/mmh)
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TABLE 6 ESWIS PLATE LOCATION, BAY 6 Attachment 3
(Cont'd)
DESIGN 211-6-E-001, 1IS190037 ACCEPTED (1983)
AS-BUILT (1986)
GAP GUIDE TO PLATE Elevation Spacing Elevation 211'-10 1'-1 210'-9 211'-8 1/4 1'-0 1/2 210'-7 3/4 211'-7 7/8 1'-1 210'-6 7/8 1/4 3/8 204-6-E-002, 1IS190038 Elevation Spacing Elevation 205'-4 1'-1 204'-3 205'-5 1/2 1'-1 1/8 204'-4 3/8 205-4 3/4 1'-1 1/2 204'-3 1/4 1/16 1/16 216-6-2-001, 1IS190047 Elevation Spacing Elevation 217'-3 1'-1 216'-2 217'-1 1/2 1'-0 15/16 216'-0 9/16 217'-0 5/8 1'-1 1/8 215'-ll 1/2 1/16 1/4 204-6-W-002, 1IS190048 Elevation Spacing Elevation 204'-3 203'-2 204'-0 5/16 204'-0 1/8 1'-0 3/4 1'-0 1/2 202'-ll 9/16 202'-ll 5/8 1/16 1/16 (1304NEL/mmh)
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Attachment 3
(Contrd)
TABLE 7 ESWIS PLATE LOCATION, BAY 8 DESIGN 218-8-E-001, 1IS190015 ACCEPTED (1983)
AS-BUILT (1986)
GAP GUIDE TO PLATE Elevation Spacing Elevation 216'-2 1'-1 215'-1 216r 3 3/8 1'-3 5/8 214r 11 3/4 216'-3 1/8 lr 3 1/2 214'-ll 5/8 3/8 3/8 202-8-E-002, 1IS190017 Elevation Spacing Elevation 203'-2 1'-1 202'-1 203'-0 5/8 0'-9 3/4 202'-2 7/8 203'-0 1/4 0'-9 5/8 202'-2 5/8 3/8 1/4 217-8-W-001, 1IS190026 Elevation Spacing Elevation 217'-3 lr 1
216r 2
217'-1 3/16 217'-0 lr-0 1/4 1'-0 216'-0 15/16 216'-0 5/8 1/2 201-8-W-202, 1IS190029 Elevation Spacing Elevation 201'-0 1'-1 199'-ll 200'-ll 1/2 200'-9 3/4 1'-0 11/16 I'-1 199r 10 13/16 199r 8 3/
1/8 1/8 ll-(1304NEL/mmh)
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