ML19210A563

Reactor Containment Bldg Ring Girder Surveillance Test Three Years After Structural Integrity Test,

ML19210A563
Person / Time
Site:	Crane
Issue date:	06/17/1977
From:	Chandrashekhar, Klingaman R METROPOLITAN EDISON CO.
To:
Shared Package
ML19210A561	List: ML19210A560 ML19210A563 ML19210A566 ML19210A568
References
NUDOCS 7910300601
Download: ML19210A563 (17)

Text

'.

June 17, 1977 7,{3EE. ELE ISL/CID liUCLEAR STATIO:i U:IIT 1 P2 ACTOR CO:i"AI!iEIT 3UILDI?IG RIIIG GIREER SURVIILLtdiCE TEST THREE YEARS AF ER S. I. T.

!E30POLITri EDISJ:I COMPMIY Subsidiary of General Public Utilitles, Corp.

Prepared By:

\\lf c ) - Q. 4 o'l Y/ S. Chandrashekhar Approved Ey-7 j',yv 'M/-

^

11 n/

E j :4. :Cln.In=an/-

fj 'Z 1491 225

/

00 7910300

LIST OF TABLES TABLE 1 P2 ACTOR SUILDDG REIG GIRDER REINFORCING BAR STRESSES (KSI)

TABLE 2 RING GIRDER STRAIN GAGE P2ADINGS, APRIL--JULY, 1977 TABLE 3 CONCRETE CRACKS ADJACE:T2 TO DOE TEIDON BEARING AREAS--EJ QUAD TA3LE 4 CONCPITE CRACKS ADJACE:IT TO DOE TENDON BEARING ARIAS--SE QUAD TABLE 5 CONCP2TE CRACK 3 ADJACUT TO DOE TEDON 3EARUG AREAS--2TE QUAD TABLE 6 CONCRETE CRACKS ADJACE;T TO DOE TENDON BEARING AREAS--NW QUAD TA3LE T MICR0 STRAIN BASED ON PRIOR-TO-PP2 STRESS P2ADINGS, MAY 15, 1973 LIST CF FIGURES FIGURE 1 RING GIRDER SURVEILLMICE--STRAIN GAGE LOCATION FIGURE 2 CPACK PATTEPli AREA AT AZIMUTH 175 AREA NO. 120 FIGUP2 3 CPACK PATTEF3 AREA AT AZD UIH 20 AREA NO.131 FIGURE k CRACE PATTEP3 AREA AT AZDIUTH 320 AREA NO. 132 FIGUP2 5 CRACK PATIERN AREA AT AZDIUTH 350 AEA NO.133 1491 226

The Three Mile Island Nuclear Station Unit 1 (TMI-1) ring girder was subjected to a surveillance test during the period from May 3, 1977 to May 27, 1977 This conforms with the cccmitments of the

" Report en Containment Ring Girder Construction and Eepair" and its subsequent addenda, originally filed Dece=ber 3,1971, with the Directorate of Licensing of the United States Atc=ic Energy Cc==ission and complies with the requirements of TMI-1 Technical Specification h.h.2.2. A, fourth inspection - three years after " Structural Integrity Test".

The stresses in the reinforcing bars being monitored by strain gages do not exceed the allowable tensile stresses 0.00h in./in. or 11,500 psi. Strain gages at two locations indicated strain readings which resulted in the deviation of stress values (stress during fourth surveillance - stress during full initial r~estress) greater than 11,500 psi, (57 VS, 22 95 KSI and 129 VS, 20.2h KSI, Ref. Table 1) but these readings are considered to be unreliable due to gage failure.

During previous surveillance tests a ground reading less than 50 Mega Ch=s was sufficient cause to consider the strain gage inoperative. Each of these gages had ground readings belev 50 Mega Ch=s in at least ene previous test and low ground readings in all the cther tests (Table 2).

Strain gage 57 vs and 129 VS are located in the Northwest and Ncrtheast Quadrants respectively. There are no cracks vider than 0.010" in these regions which could be attributed to exceeding stresses 4.n the reinforcing bars.

1491 227

/

Crack vidths as shown in the crack pattern charts for the white-vashed areas, Figures two through five, do not indicate any crack vider than 0.010 inch, which is the acceptance criteria (. Tech. Spec.

h.4.2.2.C21 There has been a decrease in the width of a few cracks charted during previous surveillance inspections.

No displacement of the bearing plates or cracks greater than 0.010 inch in width have been observed in the dc=e tendon areas charted in Tables three through six.

The six ::enth, cne year, two years and three years ' surveillance iuspections have not indicated any significant structural problems.

Scaling on the facia is due to the thermal cycling, and the seven voids that were discovered (one during 1975 and six during 1976) in the deme tendon areas were found not to impair the structural integrity of the Reactor Building. The two cavities that were discovered during the third Ring Girder Surveillance (1976) represent an acceptable as built conditicn. These have been discussed in detail in Met-Ed's repcrt GQL 0771, dated June 3,1977, in. response to the NRC's letter of May 3,1977 It is planned to repair the voids prior to the end of 1978 Refueling Out age.

Since the six month, one year, two years, and three years' surveillance inspections have not indicated aT/ significant structural problems, Met-Ed vill not be conducting ftn ther Ring Girder Surveillance Tests as discussed in h.h.2.2. A.

1491 228

/ A r ~%

e3 TABLE 1 A

SACTC.i OUILDING Rn Gmoca hiaCwm En Sr.qcsses (nst) f 7.-2 16 i 5-d(-iE l

yt CATE 6-6-13 7-s-73 9-is-13 10-2-14 5-,.,,

M sCG PRES'RESS FFTER ACCEPUUc! *E "

l S.iT y

2 N

N liRTICAL COLUMM L COLUMU 2 CCLUM 3 COLE % 4 C% Md5 Cctu!N &

COLU.9)?

CCW98 8 CCLU M 8 ' COLUt:U'O 2

E Plus fult.

DEMrCd DEh Clod C:MTWd CPIPTICM LCChT!C4

.?

VERTICSL GS10MTK 12 MOMid 24 Mo,Vid 5ts M0MTH

,,, s 13,,r.,

N FUR r//AE PREST uss Cot 2-cx !

COL 4 Col I '

Cct L-Co.

CCIS-CDL !

1.s84.sil-P.hh 6.1 3.5(3 3)

.7 4

52 80ca 435'

1. 0a*

o.,

_-o.3 4.2 t.,

-2.3

-i.;

l 52 YfirT 435' ic8*

6.2 3.a is 2.1 0,5) c.s

1. i n.s>

ta 6

(6)

(6) 2.a 53 m"P 435' 245*

o.s c.6 4.7

-61

-to

-lul

-(6 (6) s.,

-4.O(3,5) -4.d h 55f3.51-hf66

.o 53 VEM 435' 2.:P s.7 3.3 o.e

-420.s)

-s.s

-3.3 n.si

-3.1 0.3 2.6

7. 3h 1.6h 7.2 54 Hcor 435' 252*

t.3

-o.3 s.7 3.4

,3 7.i

, e, 1.4( 3,5.'713 6( 3, 3) -

9.O(3,5)+.4

1. hp( 3,5 ) _0.15 54 Vfi?T 435' 352' 7.1

~'

-(c)

(6) 0.19(3.5)-P.h5 1.7 55 Frp 4t0 tC0'

-o.:

1.1 t

3.2

-rg m,.J h.h(3)i-3.8 h.60(3 s)-3.70

-1.0 3

St.VETT JJ6. ;CT t.o

, 0.0

-0.6

-2.1

-1.5

-.e. 1 (3.5) 55 t.N 440' 245'

-o.t 1.o 4.o

-o.6

-4.6 5.7 m 1.7 3.h

}.6

]11.6o(3.s)6.op 4.3

]-o.s

.13. 6dy. s

_13.sofo s) 8.7ii

-3.,

E61277 44 6 245' o.5

-5.1

-it.oti.s>

-s.9

-13.7 (t s)

-,. 6 l.ShA i

.5 h 7R(151-0.66 4.e 57 HCr?

'40' 352*

t.L i

-t.4 3.9.

-2.5 0.s)

-6.4 s, en

,n l

57 /EJI 44s' 252e;.li4F?A 3,b) -1. 0( 34 J (6i 21.99 22 95 59 HOOP 44L lG84 50 VfdT 446 10S*,

3.s 4.8 4.7 4.5

-o.1 7.7 3.o 7.0 i E.4 p Od h,3p 3,o T

p.63

-1.69

. Q.3. I

1. 1 Y

3. --.)-.(

--l. 24 ( 3 < 5)-7.47 is j

o.4 t

2.6 4.4

.e

-2. f.

4.5 n.1 59 hCu 44, -.2. 4 3 '

}

i

.'e>

59 VEM 44/i 245*

-o.s i

7.5 i

1.9 n.s

-1.4

. 7 (tsy I7=

-to)

~

{(6) 3,.

h 9

bo hCOP 446' i 351*

-o.4 1.9 5

4.4

- c,. i

- rt.1 g

60 VERT 44la l 35t' 4.2 s.4 1

5.1

-ru

-U)

-\\6l

((6) 4.,

t 121 h0 ?i' 4 4.* ' t%*

1 h-f 124 VfRT 446'! 60*

1.2 2.7 3.3

-cg

-to

-( @

24.99 20.24 3.7 (6)

.5.76(3.c 10.60 4.s _

l gr,

130 ticgr 44u&23F o.1 2.3 s.o 2-

-2..t 3.6(7)

-1.4 (6)

Is 11(3.',11.6 3 re d 2) 130 VERT 44k l 3W o.3 2.7 i

3.o i nn

-3.o

.1

.o."

~%

6f KrF 45T icS*

e o.o r,3

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1 -2.3

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.1 8

10-37

-2.23 i

g q' bl VIRT 452' iC6' i.6 1'

t1 2?

o.?

2.t o.:

, A

__q J3_77

-0.13 ex-5 62 Eco7 452' 245' o.1 1.,

2.4 3,5

1. P 3.j-l '. 2

-1. 98( 3. 5)-1.02 1

s 3.7 5o 1.,

5.2 t.s

.T

-3.0 4.5 i

0 I,2 Vf.?T 452' 24!*

4.2 3.6 h

I3HM?

457 352' o.n 2.3 7,e e r.

-2.;

2.s

-o.3 3,

- 9 1 59

-1.21 7.,

I 10 ff.6

13. 1 9

} o.00 2.3 i

h 4

63 72RT 452' 352*

2.3 2.s 3.i s7 o.?

Ito n..

Siga Coi.vention + Tension. - Compreeston 5?iC3L MOTESt 4.

s.t.T. uteruir.e4 tiste ser.. wa, no

..p ret tna.

(see T ne 2).

5.

Unuseable reading for metn ber due t...ow greuw scadin.t er 1.

Complete informattor, on ettein nage ree.'in;s to r.tven 13. Tenile 2.

2.

Conversion of 4 train to stress ensuece E a: set

• h.00G.000 pst.

• ] *[

3.

Stress fer sterer bar.

9 7.

Stress (e.t m.nin bar wt.h guestionaMe trounJ reeJiet.

8.' For sister bar stresses at full prestress(column 1)

Ref. Table 7

TA3LE 2 THREE MILE ISLAND UNIT 1 RING GIRDER REINFORCING BAR STRAIN GAGE READINGS,5/3 5/2h 10 77 (ADJUSTED FOR THE INITIAL ZERO TO THE PRIOR-TO-PRESTRESS CONDITIONS OF EY 13, 1973)

TEMPERATURE ("F)

TIME STRAIN GAGE ELEVATION AZIMUTH STRAIN (p INCH / INCH)

GROUND (OHMS)

(M

()

EXTERNAL INTERNAL LOCATION REBAR SISTER B AR REBAR SISTER BAR AIR SKIN AIR DAY HOUR 52 H00P 435 108

+3D

+157 35M 200M 79 79 116 5/16/77' 13h8 52 YERT 435 108

' 266D

+206 120K 1h2M 80 80 116 s/16/77 lahn

+

53 HOOP 435 245

-166D C

46K 30M 79 79 135 5/23/77 1420 53 VERT 435 2h5

-159D

-157 SM 120M 79 79 las 5/23/77 1hlo 54 HOOP h35 352

+253

+274 150M 530M 70 69 80 5/3/77 090$,

54 VERT h35 352 C

+h9 370M 2h000 69 69 80 5/3/77 0915 55 H00P 1h0 108

-85D

+6 2.3M 230M 76 76 116 5/16/77 1330 4

55 VERT hhD 108

+299

-159 23M 2hG 82 82 116 5/16/77 1130 56 H00P 440 245-

+110D

+h03 4 3g 97M 79 79 135 5/23/77 1450 56 YERT hho 2h5

-281D h69 23M 130M 79 79 135 5/23/T7 1500 51 HOOP 440 352

+53D

+130 1.1M 380M 65 65 80 5/3/77 0950 142M E 65 65 80 5/3/77 1000 57 VERT hhD 352 B

+758 F

50 HOOP h46 108 A

A A

A A

A A

A A

58 VERT hh6 108

+311

-166 700M 2G 79 79 116 5/16/77 1450 59 H00P 446 2h5

+91

+56 4G 2.10 74 TL 132 5/24/77 1010 59 VERT hh6 2h5

+s36 D

-h 3_

1.3M TOOM Th 74 132 5/2h/77 1000 60 H00P hh6 352

+7hhD

+1102D 0.6M 1.2M 67 67 80 5/3/77 1035 60 VERT hh6 352

+636D

+775 D

~ 1.5M 0.5M 67 67 80 5/3/77 10h5 129 HOOP 446 80 A

A A

. A A

A A

A A

129 VERT hh6 80

-161D

+8621) 10.6M 83M E 76 77 112 5/13/77 101 130 HOOP 446 320

+h06D

+199 13.2M 87M 67

.67 82 5/6/77 1010 130 VERT hh6 320

+317D

+176 8.5M 170M 72 72 82 s/6/77 lobo A

61 HOOP 452 108

+13 C

325M 20 82 82 135 5/23/77 1030 61 YERT 452 108

+61

+h6 6.1G 1.8G 78 78 135 5/23/77 1005 62 HOOP 452 245 C

h7 250K h.20 77 77 132 5/2h/77 1h00 N

02 YERT h52 245

+201 B

785M P

Th Th 132 5/2h/77 1000

[

63 HOOP 452 352

+55

-23 1.10 3.'6G 67 67 80 5/3/77 1135 63 VERT 452 352

+110

+102 700M SG 67 67 80 5/3/77 1125 NOTES: A. K0 GACE INSTALLED AT THIS LGCATION.

E. ALTHOUGH C000 GROUNO READING FOR THIS TEST, D. GAGE DESTROYE0 DURING CON 4TRUCTION.

READING QUESTIONABLE DUE TO LOW GRCUND lH C. GAGE INOPERATIVE.

PAST TESTS.

F. CROW O READING NOT E NING M DUE TO B.

D. REA0lHG QUESTIONASLE DUE TO LOF OROUNO.

TABLE 3 SP,1303-8.2 CONCRETE CRACKS ADJACENT TO DO:E TENDON BL.xING AREAS Afl0 C0i; CRETE-TO-METAL GAPS Southwes t (S.W.) Ouadrant n l, t

ff h W SGGGGGGS* p- ~qO %w a36 m

u s a a u su u t.u.u --

E

-. - -. a

@GGGGEEOSGSGS Fx < u a x - - v.@< mg <.

?. 9GGGG n.u u_

It 0 Areas with cracks noted thus: V LEGE'ID FOR ORACK/ GAP LOCATIO.'!

4 1st Letter 2nd Letter 3rd Letter H = Horizontal L = Lower R = _Righ t V = Vertical C = Center L = Left Cl= Across Corner U = Upper C = Center i

Tendon Location Locatior Tendon Location Location l Tendon Location LocationI No.

Cracks Gaos Remarkt No.

' Cracks Gaps Remarks No.

Cracks Gaps Rcea:

No 109 Nn+.

1 133 m'm vi r n,

395 7tm.cr3 vr I

li 37 A i $ r% 'rr a ofr No i 110 Ngo a 1 134 Ivur trn 111 No I 135 I vi.T. vitt.. nte >

l'327 U+3 'itr i ['rT I!o i nn I! 19A

' vim 'vr c 'vr f No I 112 l

No i 136

~fT3 1

No l 137 No I

' 1?o Dm vrr i

No No i 138 lCtra Vrtn

' N, t

im vira.'crn Vr}

No I 114

-m

{

15

'VLL i

Note h 139 I

No I I!331 M@>crr,rr i No No 140 iFrp No l ll 332 crm'cr7 'vri No

~

l A16 CUL 117 IVLR,VLL No I 141 1

l Note 4 11333 fiVH ',rr r 'vr h No I 118 hvem vr o = - No i 142 tyLL IUote 4 I I!334 No i 119 brim erp.vde No

! 143

! CUR.VUC t ' No I

!! 335 HUL No 1

~

No i 120 En m i No i 144 IHVR I

No I il 316 No i 121 17tm i No I 145 I

1 No I 1 317 I

No 1 122 7UR.VrR No I 146 IVLL l

No I

'l319 123 7UR.VLR.VUC No 1 147 tHUR No i il 119 CUL 6

No i 124 WPihPs

• C No i 148 HUR I

No I il 340 I

No i 125 i No i 149 CVR,VUL l No I il 1M CUR.HUL i

No 1 126 f.'T.L.VUL i No i 243 1

iNote 2

!!147 VLL.CVL.VUS No i 1 244 4

lNote ?

illan VLR,HUL I

No i

127 l'UL I nn 12S trit r, n,

i 245 IfCR.HLo I No il 3d VLR,HUL,VUC No i

Il an VUR,VLR,HUL No i 14f; brta crR.HLR,,,

129

! mir crir. t.,

130 iVUL'

! No l 247 IIEN,HLR,VDC Noteh

. ll 346 CUR,VLR,HU5 No l

131 1CUL,EUR No i 248 trim ur n ! Ng,, ca 1347 VUR.EUL No i

132 iUL No 249 mmuca i

• s I

114q No i

I i

lgo c,uP r,

i t

NOTES 1.

All cracks are less than 0.005 in.' vide.

2.

Unicss otherwise noted the cracks extend from th? =ctal bearing plate across the adjoining two to four inches of concrete.

3.

Bearing area blocked frcn inspection by vent stack.

b.

Voids Discovered.

(All Voids are shown on Figures 5-12).

I 5

D 2h75W te D2h8SJ have very narrow gapc (unreasurable) between the bottcm of the bear..ng plate and the adjoinir,s. concrete.

6. Note h & 5 refer to 1976 data. No additional cavities or voids were discovered during 1977 1491 231

TABLE h SP 1203-8.2 CONCRETE CRACKS ADJACENT TO DOME TENDON BEL.u!C AP AND CONCRETE-T0-METAL GAPS Southeas t (S.E.) Ouadrant

(

ewaeesesemesa eeseeeeessessseescessee

.- -. x. -

< a.= < u x

.c u e.

u ux x ue x u u u--

l' Areas with cracks. noted thus:

LEGEND FOR CRACK / GAP LdCATION 1

3rd Letter 2nd Letter _

1st Letter R = Right L = Lower 11 = Horizontal L = Left C = center V = Vertical Ca Center U = Upper C = Across Corner Aencon Location i

Tendon Location No.

CPacks Gaps Remarks No.

Cracks Gaps.

Remarks.

No. Cracks, Gaps Remarks Tendon Location 301 l

i 226 '

No

,s

' ~ '

142 No 302 prp,ycu_pr3 g

227 No 143 CUL No 30.$gyn.Vrp. e.r r n

I 228 No 144 VUR CUL No 229 Crra vro No 304 VUR. ECR.Vr. )

nn No 305 CUR.HER.vt> nn

,145 230 CUR No 146 CUL 306 HUR.HCR Ef No 231 No 37 307 VUR.HLR'.ti No 232 CUR No 308 HVR,HCR.VL'?

No 148 Note h 233 No 309 CUR.CLR,VUC No 149 234 No 210 CUR nn 235 No 310 CUR,VUC No 211crp No No 311 CUR,HLR No

~

~

236 VUR 212 Ci'4 No Ho 312 CUR,ECR,CLi No 237 vrrq 213 Ctro No 313 CUR,hCR,HLI No 238 No 214 No 314 CUR,VUR di!,)

No 215 HUR. VEL No

. 239 Vro No 315HUR No

' ' - ~

216HUR No 240 CUn No No 217 CUR No 241 No 316 218 CUR,HLR No 242 Ct*R No 317CUL No No No f

243 VLR.HUL No 318 No 319 No 219 No

_ 244CUL 245HUL No 320 nn 220 No

(

No I

246 CUR,HUL No 321 CUR. HUL nn 221 247 CUR No 322VUC. VLC wn 222 223VUL No 6-N, No 323 248IiUL 324CLL, CUR No_

224 No 249CUL No 2 25'7UC Note h r

L All crac1s are less than 0.005 in. vide.Unless othorvise not lt NOTES 1.

across the adjoining two to four inches of concrete.

2.

No gaps were noted between concrete and bearing p S n volume.)

i 3

(

h.

Note h refers 1976 data. No additional cavities or voids were discovered during 1977 1491 232

TABLE 5

SP 1303-8.2 CONCRLTE CRACKS ADJACE';T TO D0'F. TENDON BEARING APlld AND CONCRETE-TO *: Gal GAPS Northeast (S.E.) Quadrant w

(

..meGGGO2GGGGGMGGGGEMEDdSGOOGO

..--.ewx--.-------.-<<:<<<<<-

u. _

esepes$E sseesceeseece emeemm

. x e -- -. <tud<1 s e s t 4 <d exxaszzag

• a Areas with cracks noted thus: V~

LEGE'ID FOR CPJ.CK/ GAP LOCATION 1st Letter 2nd Letter 3rd Letter R = Bsri ental L = Lcuer R = Right V9 Vertical C = Center L = Left C 4 Across Corner U = Upper C = center Tendon Location Tcaden Location Tendon Location Remarks No. Crack Gan Remarks No.

Crack r,a r, Remarks No.

Crad,Gan J01 nn 125 No 208 FUR, VLC No J 02 CVR. HUL No 126 No 209 CUR,VLR,VLC No

~

133 VUR. HUL No i 127 I

No 301 No 104

-- VVL No 128 No 302 HUL, VUC No

~'

JO5

-- CVR No 129 VnR.Vrn No 303 HVL No No 130 HUR.uYL.VVL No 304 VUR, CUR,C /L No 5

( ' Q'f 7 CUR,VLR,VI L No 131 VUR I

No 305 108 VUC no 132 l

No 306 VUR,VLL,H/L No

~

109 EUR No I

133 CUR I

No 307 HUR,HVL No 110 No 13A iNote 5 308 CLR, HVL no

~

111 VVL VLL No i 135 i

No 309 VUR,VLL,HJL no 112 136 VVR

}

No 310iiLR,VLR,YL L, no No 113 VUR No 137 i

No 311 VLR

' Note 3 114 VVL No 1

11g HVL i

No l 319 VUL Notch 115 No 139

!Noto 5 313 HUL, VLL No 116 No

.I 140 CUR HVL.

No 314 VLR, HUL No

_117 Note SL 141VUR, VLR i No 315 CUL,VLR,HJR No 11e no 201 VLL

' No 116 HLL No J19 No 1

207 CUR,VLR,CSL No CVR no 117 1.70 No 203 CUR,VLR,CUL No 1 31 g --

No No

~

2041NR No alg VUR No

.'~

R1

'~ ~

122 No l

205 CUR,VLR,CUL No gon VUR No 123 No 206 HUR,CUL,HUL No 171 --

No

~

~

124 No 1 207 CUR,VLL,CUL No 199 --

No oLi c.s 1.

All cracks are less than 0.005 in. vide.

2.

Unless otherwise noted the cracks extend from the tetal bearing plate across the adjoining tvc to four inches of concrete.

3.

Five cracks less than 0.005 inc. radiate down from the bottom of the bearing plate, spaced approxinately five inches on centers and terminating about one inch from the cdge of the_bcaring plate.

h.

Four cracks -- similar to those described in note 3.

5 Void Discovered.

(All Voids are shown on Figures 6-12).

6 Note.h & 5 refer to 1976 data. No additional cavities or voids were discovered during 1977

SP 1303-8.2 TABLE 6

, CONCRETE CRAL.d ADJACE'?T TO L3ME TE'iDON BEAwJ AREAS AND CONCRETE-TO-!1ETAL GAPS Northwest (N.b'.) Quadrant

,y,

-q,,

mh f~a (EB eepsp arenseg.- g-6egggq9e--

932ESp/

u N

t. -[L' - g,f 8%x x x -

@p G866

$(g@@a@x-.66GFQx<Ep 6

x x

~. Q'

- sm-x

.- -. e

= > > >

osa Areas with cracks noted thus: v~

LEGE'ID FOR CRACK / GAP LOCATION 1st Letter 2nd Letter _

3rd Letter _

li = Horizontal L = Lower R = Right V => Vertical C = Center L = Left C =I cross Corner U = Upper C = Center A

Tendon Location Tendon Location rencon Location No.

Cracks Gaos Renarks No.

Cracks Gaos Remarks No.

(nactq.GnpRenarks

..1-.....--.

yLL, No 325 VUR, VOL, No No 219 101 10 6 'nm m

I nn 222

, nyt MD VLL VUC No 192 CVR, HUL No 220 CLL No

.M / mm v-mir nn 221 rvn

]Q3'frm 328 mir r;

329 uur, virr

r-

.)Qs nn

_,7 223 cvn cut ten 330 -_

reoh

/%

n-+.

o 224 vrm nn

~ ~~

hj No

_,}-

225 No 331 __

fro

_10 E Mn

_2.26 No 332 --

No

_201 No 227 CVL No -

333 --

No 334 A No

_207 No 228 VUL, VUC No

,793 HUL No 229 CUL, VVC No 335 CVR, VLR I!o 204 No 233 CUR No 336 CVR No 337 VUL No 905 CVL No 231 CUR, VUL No 206 No 2 32 CVR, VUC No 338 HVR, VLC No No 339 HUR, VLC No 207 HUL, VUR 233

,yg fr; 23AHUR, CVL No 340 CVR No h_._M 1 --

No No VVC y,,

235

,9,09 219 CUL y,

235 CVR No i

349 HUR,CUL,VUNo

- 'g i i VUR in 237 CVR No 343 HUR, CLR No

_p ! 9 'IVR, CVL nn 71a HUR Iio 344 No

?qQ HUR No

[

3A s HUR No 33 VUR tro 713 VUR, CVL No 960 --

Note F3L 146 HVR.

. No <

~~

147 HUR,VUR,HU No 915 VUR. VLR No 941 NO I

s l.

qag CVR No i

216 No 747 - - "

"m.

No

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39;gg 1.

All cracks are less than 0.00$ in. vide 2.

Unless otherwise noted the cracks extend from the netal bearing plate across the adjoining two to.four inches of concrete.

3.

Bearing area blocked fren. inspection by vent stack.

I h.

Void Discovered.

(All Voids are shcun on Fi ures 6-12).

6 5.

Note Is. refers to 1976 data.

No additional cavities or voids were discovered dunng 1971 t

- - -s lf l}

TABLE 7 TIIREE MILE ISLAND UNIT I-RING GIRDER SURVEILLANCE Microstrain based on Prior-To-Prestrees readings of 15MayT3 Strain Gate Elevation Azimuth REBARS SISTERBARS Iocation (ft)

(o) g g

Number 6, 7 Junt Dome Prestrest Number Dome Prestress 6, 7 Junt 5 JulyT3 18, 19 6, 7 Jun 5 July 13, 19 e

T3 Sept.7 u

73 Sent.~i3 d

52 limp 435 108 6H 31

-17 146 25HD 20

-20 21 2 52H 4

52 Ve"t 435 108 6V -

213 130 53 20VD 231 150 101 52V g

53 Hoop h35 2h5 5H 16 22

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4 54 Hoop h35 352 hH 43

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236 152 Sh ShV 55 Hoop hh0 108 9H

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91 SSH 55 Vert 440 108 9V 33 1

-21 68VD 39 1h

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514 196 56H 4

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129 Hoop 446 80 No gage installed at this Ic cation 129H 129 Vert Ish6 80 120 h1 94 131 SDla 38 115 164 129V

, 50 H*P hh6 108 No gage installed tt this Ic cation I

,58 Vert 1h6 108 2hV 130 166 162 ShD 153 198 221 58V 4

59 IrooP 446 245 Blank 12 91 152 59V 5

79 149 59H 59 vert 446 245 28V

-29 86 65 46 134 156 215 59V 130, llooP 446 320 80 5

81 171 SD6 5

94 178 130H 130 Vert hh6 320 S3 13 92 105 SD1 20 88 120 MV 60 H%p hh6 352 S6

-12 66 152 SD2

-21 6h 5172 g

60 Vert

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61 Hoop is52 108 IH 0

81 89 Gage opened durin# ; vert. p estress 61H 61 Vert w

452 108 29V 56 49 G

52D 63 65 76 61V 62 H%p I

e 452 245 S5 3

67 62H 5

65 83 62H 62 Vert h52 2h5 62V 145 126 129 S6VD Gage det t.oyed in const.

62V

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78 95 62 15 77 60 63H

,63 Vert N

h52 352 26Y 80 87 106 35 85 94 1 114 63V V

Cn J

l Notes:

1.

Reading questionable - low ground.

2.

Reading questionable - no correlation with corresponding locations.

3.

Lead wire severed - not repaired for this reading.

h.

Gage shorted to Ground.

Table 7 Note: For values in Colu=n 9, table 1, wherever sisterbars are considtred in Colu=n 8, values of stress at full prestress (Column 1, table 1) have been calculated fres corresponding strains in table 7 g29x10-6

-6 52HS, 242x10 6x29x106 = 7.02.(KSI) 57VS,_33x10

= -0. 9 6 53VS, hx10-6 29x106 = 0.11 129VS, 16hx10 x29x10-6=h.76 SkVS, Shx10 x29x106 = 1.57 55HS, 91x10 g29x106 = 2.6h 55VS, -31x10 x29x106 = _o,go 3 9x106 = 5.68 56HS, 196x10-6 2 56VS, -169x10-o 29x106 = _h,go x

57ES, 153x10-6x29x106 = h.hh 59VS, 215x10-6x29x106 = 6.24 130HS, 178x10-6x29x106 = 5 16 130VS, 120x10-6x29x106 = 3.h8 62HS, 83x10-6x29x106 = 2.h1 The above values are to be substituted for the corresponding values in Column 1, table 1 in order to arrive at values in Column 9, table 1.

1491 236

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