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SUBJECT | SUBJECT | ||
'MISPLiCED TENDON SHEATHINGS MIDLAND PROJECT BECHTEL JOB NO. 7220 | 'MISPLiCED TENDON SHEATHINGS MIDLAND PROJECT BECHTEL JOB NO. 7220 FINAL REr0RT I | ||
e Subsitted by: ~ /C l B. IDhar l O. .t' -'' ' :-^ I | |||
FINAL REr0RT | |||
Subsitted by: ~ /C l | |||
B. IDhar l O. .t' -'' ' :-^ I | |||
-i Approved by: @ 4Y FA M s; G ot# l IR. L. Castleberry - | -i Approved by: @ 4Y FA M s; G ot# l IR. L. Castleberry - | ||
Report Date: 6-'/3-7 7 , | Report Date: 6-'/3-7 7 , | ||
Revised: 8 " / 7--7 7- l l | Revised: 8 " / 7--7 7- l l | ||
8006170 | 8006170 t . | ||
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9 INTRODUCTION This report summarizes Project Engineering's evaluation of. four mis-placed tendon sh'eachings, and completes Project Engineering's action required to resolve the problem. | |||
9 | |||
INTRODUCTION This report summarizes Project Engineering's evaluation of. four mis-placed tendon sh'eachings, and completes Project Engineering's action required to resolve the problem. | |||
DEFICIENCY On April.19, 1977, a nonconformance to the project design documents was found, involving four misplaced tendon sheathings to be installed at approximate elevation 700'-704' in the Midland Unit 1 containment build-ing. As shown on the vendor drauings, these four tendons were to be . | DEFICIENCY On April.19, 1977, a nonconformance to the project design documents was found, involving four misplaced tendon sheathings to be installed at approximate elevation 700'-704' in the Midland Unit 1 containment build-ing. As shown on the vendor drauings, these four tendons were to be . | ||
deflected downward to clear the two main steam penetrations at center * | deflected downward to clear the two main steam penetrations at center * | ||
'line elevation 707'0". Contrary to this, two tendon sheathings (H32-036 and H13-035) were installed level, 'and two tendon sheathings (H32-037 and H13-037) were not installed in the local area directly below the penetrations. Concrete had been placed to a construction joint at elevation 703'-7" approximately one week before this nonconformance was found. This nonconformance was found by the survey team during pre- ' | 'line elevation 707'0". Contrary to this, two tendon sheathings (H32-036 and H13-035) were installed level, 'and two tendon sheathings (H32-037 and H13-037) were not installed in the local area directly below the penetrations. Concrete had been placed to a construction joint at elevation 703'-7" approximately one week before this nonconformance was found. This nonconformance was found by the survey team during pre- ' | ||
parations for the next wall lift. The original design and "as-built" alignment of these tendons are shown in Figure 1. | parations for the next wall lift. The original design and "as-built" alignment of these tendons are shown in Figure 1. | ||
CURRECTIVE ACTION Project Engineering has reviewed the "as-built" condition and has studied various relocations for the affected *endons. Based on this review, it was concluded that the original design criteria could be met by rerouting one sheathing originally planned ,for below the penetration to a new-alignment above the penetration. Sheathing H13-037 can be installed below the penetration. There is a 14 inch clearance between the construction joint and the ' bottom of the penetration. This will allow a 6 inch clearance between the realigned sheathing (H13-037) and the edge of the penetration, and a 6-1/2 inch center-to-center spacing to the adjacent horizontal sheathing (H32-036). The 6 inch clearance to the penetration'is consistent with the recommendations of BC-TOP-5A, Rev. 3 (Ref erence 1), and the 6-1/2 inch center-to-center spacing between sheathings is consistent with the original design. The tendon sheathing-(H32-037).is rerouted above the penetration, necessitating | CURRECTIVE ACTION Project Engineering has reviewed the "as-built" condition and has studied various relocations for the affected *endons. Based on this review, it was concluded that the original design criteria could be met by rerouting one sheathing originally planned ,for below the penetration to a new-alignment above the penetration. Sheathing H13-037 can be installed below the penetration. There is a 14 inch clearance between the construction joint and the ' bottom of the penetration. This will allow a 6 inch clearance between the realigned sheathing (H13-037) and the edge of the penetration, and a 6-1/2 inch center-to-center spacing to the adjacent horizontal sheathing (H32-036). The 6 inch clearance to the penetration'is consistent with the recommendations of BC-TOP-5A, Rev. 3 (Ref erence 1), and the 6-1/2 inch center-to-center spacing between sheathings is consistent with the original design. The tendon sheathing-(H32-037).is rerouted above the penetration, necessitating minor adjustments of one adjacent tendon (H13-038). Both relocated tendon sheathings still allcw a minimum 25'-0" bending radius about the penetrations. The two level tendon sheathings (H32-036 and H13-036) do not require modifications. | ||
minor adjustments of one adjacent tendon (H13-038). Both relocated tendon sheathings still allcw a minimum 25'-0" bending radius about the penetrations. The two level tendon sheathings (H32-036 and H13-036) do not require modifications. | |||
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:The new alignment for the tendon sheathings is shown in Figure 2. The differential friction. losses between the reviced alignment and the original alignment have been evaluated by INRYCO, the vendor for the post tensioning system design. The results are summarized in Table 1. A typical force diagram for a dc51ected hoop tendon is presented in Figure 9. It is evident from the tabulated results that the friction losses in the ' subject tendons have been reduced due to this revised alignment. Lower f riction losses improve the capability of the con-tainment structure to resist forces like internal pressure. Hovever, the variations are small in relation to the applied force, and are considered insignificant. | :The new alignment for the tendon sheathings is shown in Figure 2. The differential friction. losses between the reviced alignment and the original alignment have been evaluated by INRYCO, the vendor for the post tensioning system design. The results are summarized in Table 1. A typical force diagram for a dc51ected hoop tendon is presented in Figure 9. It is evident from the tabulated results that the friction losses in the ' subject tendons have been reduced due to this revised alignment. Lower f riction losses improve the capability of the con-tainment structure to resist forces like internal pressure. Hovever, the variations are small in relation to the applied force, and are considered insignificant. | ||
The main steam penetration openings are 4'-6" in diameter, which is less e than two and one-half times the 3'-6" vall thickness. Therefore, the main steam penetrations are classified as small penetration openings, according to the provisions in BC-TOP-5A. In the original design, no special analysis was performed to determine the stresses in concrete around a small penetration due to prestressing forces. The stresses at the center of a small opening, deter =ined from the axisymmetric analysis for prestressing forces, were distributed around the opening taking into consideration the reduction in wall area due to the opening. This i analytical approach is consistant with the provisions of EC-TOP-5A. Dua to the the realign =ent of the tendons, none of the design parameters Y 1a ... | The main steam penetration openings are 4'-6" in diameter, which is less e than two and one-half times the 3'-6" vall thickness. Therefore, the main steam penetrations are classified as small penetration openings, according to the provisions in BC-TOP-5A. In the original design, no special analysis was performed to determine the stresses in concrete around a small penetration due to prestressing forces. The stresses at the center of a small opening, deter =ined from the axisymmetric analysis for prestressing forces, were distributed around the opening taking into consideration the reduction in wall area due to the opening. This i analytical approach is consistant with the provisions of EC-TOP-5A. Dua to the the realign =ent of the tendons, none of the design parameters Y 1a ... | ||
| Line 89: | Line 49: | ||
: 7. To replace the lost bending strength, the penetration sleeve will be extendec, a new flange plate will be added, and external gusset plates will be positioned between the new and original flange plates, as shown - | : 7. To replace the lost bending strength, the penetration sleeve will be extendec, a new flange plate will be added, and external gusset plates will be positioned between the new and original flange plates, as shown - | ||
in figure 6. The new external gusset plates will restore the stiffness that was lost when the' original gussets were cut. | in figure 6. The new external gusset plates will restore the stiffness that was lost when the' original gussets were cut. | ||
e m | e m | ||
t . 4 - | t . 4 - | ||
The embedment hooks on the following rebars adjacent to the relocated-tendon H13-037 were cut to facilitate its installation: | The embedment hooks on the following rebars adjacent to the relocated-tendon H13-037 were cut to facilitate its installation: | ||
: 1) One vertical #18 on each side of penetration at 77 (Figure 4) | : 1) One vertical #18 on each side of penetration at 77 (Figure 4) | ||
: 2) Two . vertical #11 on one side and three vertical s | : 2) Two . vertical #11 on one side and three vertical s | ||
#11 on the other side of penetration at 1030 (Figure 5) | #11 on the other side of penetration at 1030 (Figure 5) | ||
: 3) One hogi: ental #11 on one side of penetration at 103 (Figure 5) | : 3) One hogi: ental #11 on one side of penetration at 103 (Figure 5) | ||
To restore the strength of the wall to its original level, the anchorage , | To restore the strength of the wall to its original level, the anchorage , | ||
lost due to cutting of these hooks will be replaced. By examining documents on chemical composition of these bars, it has been determined that the subject bars can be welded. For one #11 vertical bar, a standard hook will be velded to the cut rebar. Due to space limitation , | lost due to cutting of these hooks will be replaced. By examining documents on chemical composition of these bars, it has been determined that the subject bars can be welded. For one #11 vertical bar, a standard hook will be velded to the cut rebar. Due to space limitation , | ||
the other cut vertical rebars will use plug welded anchor plates to develop equivalent embedments of standard hooks. These details are presented in Figure 8. The hook on the one hcricontal rebar which was cut will be restored by a bar equivalent to the original design. The anchor plates will be grouted to ensure proper bear d-~ *nrfaces. | the other cut vertical rebars will use plug welded anchor plates to develop equivalent embedments of standard hooks. These details are presented in Figure 8. The hook on the one hcricontal rebar which was cut will be restored by a bar equivalent to the original design. The anchor plates will be grouted to ensure proper bear d-~ *nrfaces. | ||
| Line 123: | Line 71: | ||
: 1) Bechtel Topical Report BC-TOP-5A, REv. 3 | : 1) Bechtel Topical Report BC-TOP-5A, REv. 3 | ||
" Prestressed Concretc Nuclear Reactor Containment Structures" - Accepted by NRC. | " Prestressed Concretc Nuclear Reactor Containment Structures" - Accepted by NRC. | ||
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TABLE 1 MI!!DHDI TE iDO:1 FORCES USED IN DESIGN * | TABLE 1 MI!!DHDI TE iDO:1 FORCES USED IN DESIGN * | ||
' Original Design Revised Design Tendon. Refersace Minimum Distance Minimum Distance | ' Original Design Revised Design Tendon. Refersace Minimum Distance Minimum Distance | ||
- No . Buttress- Effective from Ref. Effective fro: Ref. | - No . Buttress- Effective from Ref. Effective fro: Ref. | ||
| Line 146: | Line 81: | ||
(kips) (kips) | (kips) (kips) | ||
H13-036 1 1044 124.03 1097 133.37 H32-036 3 1050 146.61 1097 133.37 H13-037 1 1035 125.59 1045 124.78 H32-037 3 1029 156.37 1032 154.33 i | H13-036 1 1044 124.03 1097 133.37 H32-036 3 1050 146.61 1097 133.37 H13-037 1 1035 125.59 1045 124.78 H32-037 3 1029 156.37 1032 154.33 i | ||
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STIFFaiER 1 . | STIFFaiER 1 . | ||
- m | - m | ||
~ ' | ~ ' | ||
__ r - | __ r - | ||
.. _f MAIN STEAM FENETRATION | .. _f MAIN STEAM FENETRATION | ||
~ | ~ | ||
f | f | ||
\ - | \ - | ||
~x | ~x | ||
/ .7 a | / .7 a | ||
I l 9 9 | I l 9 9 | ||
* vm sws e | * vm sws e | ||
e | e 6 | ||
6 | |||
' STIFFE:ER 2 1/P.9 | ' STIFFE:ER 2 1/P.9 | ||
+r (' - | +r (' - | ||
l D J | l D J | ||
4 FICURE 3 SilEET 2 OF 6 f | |||
I -+ | |||
4 FICURE 3 SilEET 2 OF 6 | |||
. . . _ . _ ,, 4 | . . . _ . _ ,, 4 | ||
i.'.,.... '''XV2'M _ _ | i.'.,.... '''XV2'M _ _ | ||
., .. cx | ., .. cx | ||
.* / | .* / | ||
' STIFFENER 3 , | ' STIFFENER 3 , | ||
.\ | .\ | ||
I | I | ||
'5/gljy | '5/gljy | ||
. o | . o | ||
/ | / | ||
// - | // - | ||
./ / | ./ / | ||
.4 ' | .4 ' | ||
/ _ | / _ | ||
\ | \ | ||
\ | \ | ||
. T MAIN | . T MAIN | ||
..J..._. STEAM PENETRATION [._ . .-~~ . . | ..J..._. STEAM PENETRATION [._ . .-~~ . . | ||
,/ | ,/ | ||
. h, l | . h, l | ||
. | . | ||
* T V1'.h ___ | * T V1'.h ___ | ||
- STIFFENER 4 | - STIFFENER 4 | ||
/ | / | ||
s ll | s ll | ||
./' | ./' | ||
+ - | + - | ||
s | s | ||
/ | / | ||
), | ), | ||
\ | \ | ||
.. MAIN STEAM PENETRATION #._.'. | .. MAIN STEAM PENETRATION #._.'. | ||
FICUR'' 3 51tEFT 3 0F 6 | FICUR'' 3 51tEFT 3 0F 6 | ||
+ | + | ||
*"~r ----- - - - - . . - _ , . , _ | *"~r ----- - - - - . . - _ , . , _ | ||
. I-m , | . I-m , | ||
^ | ^ | ||
,,... 1 | ,,... 1 | ||
; :s .o-. ) g s. | |||
; :s .o-. ) g | |||
s | |||
......s, | ......s, | ||
.s. | .s. | ||
..- ./ - | ..- ./ - | ||
l > | l > | ||
.. .~I/2 q | .. .~I/2 q | ||
-+ | -+ | ||
STIFFDIER 5 | STIFFDIER 5 | ||
-6. | -6. | ||
+,- f 9 .- | |||
+,- f | |||
9 .- | |||
,- / | ,- / | ||
x - _- | x - _- | ||
\ | \ | ||
7 | 7 | ||
. [kMAIN STEAM FENETRATIO | . [kMAIN STEAM FENETRATIO | ||
\ | \ | ||
/ | / | ||
. Q | . Q | ||
- . _v,n | - . _v,n | ||
-~ | -~ | ||
STIFFENER 6 | STIFFENER 6 | ||
__ ) | __ ) | ||
/ | / | ||
\ | \ | ||
s . | s . | ||
/ - | / - | ||
| Line 887: | Line 421: | ||
) | ) | ||
.-~. : MAIN STE IM FENETRATIONd ~~' | .-~. : MAIN STE IM FENETRATIONd ~~' | ||
FIGURE 3 511EET 4 0F 6 | FIGURE 3 511EET 4 0F 6 | ||
~ - - - . - - - - . | ~ - - - . - - - - . | ||
I*F * | I*F * | ||
-d'....j- - | -d'....j- - | ||
l . . ~ . . . . . _ . . . ; ., . | l . . ~ . . . . . _ . . . ; ., . | ||
. .. . . . ., / | . .. . . . ., / | ||
i | i | ||
. .. _,: p~ny | . .. _,: p~ny | ||
'~ ~ ~ ~ ~ | '~ ~ ~ ~ ~ | ||
STIFFE!IER 8 - .,- . | STIFFE!IER 8 - .,- . | ||
N | N | ||
,/.. . | ,/.. . | ||
b _ U | b _ U | ||
. . .i , .- | . . .i , .- | ||
/ ,g. | / ,g. | ||
. i ... - | . i ... - | ||
/ .: | / .: | ||
~ | ~ | ||
\ | \ | ||
~ | ~ | ||
MAIN STEAM FENETRATION/v , | MAIN STEAM FENETRATION/v , | ||
i' | i' | ||
~ | ~ | ||
* [i t | * [i t | ||
l | l | ||
. ) i | . ) i | ||
._ .gty.A . | ._ .gty.A . | ||
. i STIFFElER 7 , | |||
. i | |||
STIFFElER 7 | |||
/l / | /l / | ||
,/ | ,/ | ||
/ | / | ||
~ | ~ | ||
? | ? | ||
\ | \ | ||
_. . . . . MAIN STEAM PENETRATION #._ . | _. . . . . MAIN STEAM PENETRATION #._ . | ||
1 ' | 1 ' | ||
i FICURE 3 i SIIEET 5 0F 6 . | i FICURE 3 i SIIEET 5 0F 6 . | ||
D ~ | D ~ | ||
, - - - - . - y , , , , , , , _ , . - - --,-,,v--.%77--,, -, 4 - *v - | , - - - - . - y , , , , , , , _ , . - - --,-,,v--.%77--,, -, 4 - *v - | ||
n , | |||
ON _. ":.~r MAIN STEAM PENETRA | ON _. ":.~r MAIN STEAM PENETRA | ||
.. ... 7 1 | .. ... 7 1 | ||
\]L l ]L . | \]L l ]L . | ||
%s | %s | ||
.// . | .// . | ||
+ + +/ | + + +/ | ||
It | It | ||
; Y- p' | ; Y- p' STIFFENER 9 I | ||
STIFFENER 9 | |||
I | |||
~. ~ | ~. ~ | ||
_ f | _ f | ||
-~ | -~ | ||
9/4"_ . | 9/4"_ . | ||
/ | / | ||
g MAIN STEAM FENETRATION i | g MAIN STEAM FENETRATION i | ||
-1 a 3* { | -1 a 3* { | ||
h e- | |||
h | |||
e- | |||
. *4 _q % | . *4 _q % | ||
s' + g | s' + g 1 h O Y | ||
+>h a _ | |||
+>h | |||
STIFFENER 10 | STIFFENER 10 | ||
. fgya . | . fgya . | ||
m .m l | m .m l | ||
l | l x | ||
x | |||
/ | / | ||
FIGUpE 3 SilEET 6 0F 6 | FIGUpE 3 SilEET 6 0F 6 | ||
~ | ~ | ||
m o .... . | |||
m | |||
.... ,r T7 . | .... ,r T7 . | ||
] | ] | ||
1 I | 1 I | ||
s n GEL 707-0 . | |||
4 t | |||
c f , l8,,SAR vv i , | |||
s n | |||
GEL 707-0 . | |||
4 | |||
t | |||
c | |||
f , l8,,SAR | |||
vv i , | |||
s, CUT | s, CUT | ||
,s | ,s | ||
, t u | , t u | ||
____1 -gt 7oz- _7 V .x <- r | ____1 -gt 7oz- _7 V .x <- r | ||
% i~ =i.s ..,.~..i. | % i~ =i.s ..,.~..i. | ||
8 - | 8 - | ||
t A - | t A - | ||
, . .. i | , . .. i | ||
.4. | .4. | ||
'y l l1. jo" | 'y l l1. jo" 4 :, | ||
4 :, | |||
4 i | 4 i | ||
t il' y- .- | t il' y- .- | ||
ELEVATIO:' | |||
(LOOKING FRO:t CUTSIDE) | (LOOKING FRO:t CUTSIDE) | ||
FIGURE 4 l | FIGURE 4 l | ||
l | l | ||
, SHEET 1 0F 2 | , SHEET 1 0F 2 | ||
* a l | * a l | ||
I | I e c ~ , | ||
e c ~ , | |||
-g,- ,- | -g,- ,- | ||
O o | O o | ||
..~- | ..~- | ||
...} | ...} | ||
,r. | ,r. | ||
-l .; | -l .; | ||
y 4 | y 4 | ||
i. | i. | ||
t l t.. ; | t l t.. ; | ||
p ;t | p ;t | ||
{:- . . . , a ?? /j a ., ,.. ..., .. | {:- . . . , a ?? /j a ., ,.. ..., .. | ||
g _ | g _ | ||
.l t .>. t | .l t .>. t | ||
* ,' i _ .e , - :2 * | * ,' i _ .e , - :2 * | ||
,-.. . , .t $.- . . . ,e L.;. , , | ,-.. . , .t $.- . . . ,e L.;. , , | ||
| Line 1,207: | Line 536: | ||
- s ..r. ..... | - s ..r. ..... | ||
. . --! r '. , | . . --! r '. , | ||
h .# j. .. . .. 1 | h .# j. .. . .. 1 | ||
~~.- 3. ] ,. | ~~.- 3. ] ,. | ||
t L. - _ . - | t L. - _ . - | ||
. i | . i s | ||
s | |||
... , . . ~ - - | ... , . . ~ - - | ||
t | t | ||
.n | .n | ||
.- 6. . j. . .. 4 ; | .- 6. . j. . .. 4 ; | ||
". . v. . - :4 .. | ". . v. . - :4 .. | ||
3., | 3., | ||
| Line 1,237: | Line 549: | ||
, . 'l.'- | , . 'l.'- | ||
.*; ...s , | .*; ...s , | ||
f.,w-- .~ | f.,w-- .~ | ||
-. ~ | -. ~ | ||
:....-. .. , r. }- | :....-. .. , r. }- | ||
,. .-~.p . . | ,. .-~.p . . | ||
t. | t. | ||
n .- . | n .- . | ||
:-; ..g.g | :-; ..g.g | ||
- < <.a}. | - < <.a}. | ||
I-i., -. .c.rv u . . a . - | I-i., -. .c.rv u . . a . - | ||
,v...,. . . . . | ,v...,. . . . . | ||
. . - . ~. f . ,j s.. . a-~ . ~.,.- z %s r-. . ~ _ .. | |||
. . - . ~. f . ,j | |||
s.. . a-~ . ~.,.- z %s r-. . ~ _ .. | |||
I'll0TOCPA111 OF EXISTI:';G RI:BAR AROL7;D Tile l'E! ETRATIO!: AT 77' FIGUni'. 4 SilEET 2 OF 2 | I'll0TOCPA111 OF EXISTI:';G RI:BAR AROL7;D Tile l'E! ETRATIO!: AT 77' FIGUni'. 4 SilEET 2 OF 2 | ||
h 103* . | h 103* . | ||
7 | 7 | ||
- L /0 !t - C" | - L /0 !t - C" | ||
+ . | + . | ||
l | l s- | ||
s- | |||
-.- ...e - , a r | -.- ...e - , a r | ||
~ , . _ - . _ . _ . | ~ , . _ - . _ . _ . | ||
J.?ay :;:.y y '- c.";;. | J.?ay :;:.y y '- c.";;. | ||
s ,/ | s ,/ | ||
VERTICALv | VERTICALv T . | ||
T . | |||
r i w n | r i w n | ||
> >o | > >o | ||
^g, , | ^g, , | ||
gg(j | gg(j (EL gS'-7" ta~ u o n ta:g' - | ||
(EL gS'-7" ta~ u o n ta:g' - | |||
..u.. | ..u.. | ||
.\ e. | .\ e. | ||
q g | q g | ||
0 n/2 xl I-7 _ q .4-- . , , . | 0 n/2 xl I-7 _ q .4-- . , , . | ||
i | i | ||
. > . _m <1 < | . > . _m <1 < | ||
" . 1 i | " . 1 i | ||
n t i_to"~ -w l'_;o W," > l | n t i_to"~ -w l'_;o W," > l a | ||
4 2'-l" , _ l HOOK ON THl6.' ' | |||
2'-l" , _ l HOOK ON THl6.' ' | |||
l HORIZONTAL cli . ~ | l HORIZONTAL cli . ~ | ||
. J.~REBAM CUT - . | . J.~REBAM CUT - . | ||
l e' | l e' | ||
. ELEVATICN l | . ELEVATICN l | ||
l (LC0itING FRCM OUTSIDE) 1 l | l (LC0itING FRCM OUTSIDE) 1 l | ||
FIGU2E 5 SILEET 10F 2 i | |||
FIGU2E 5 SILEET 10F 2 | |||
o f, - ,' ; e " . | |||
o | |||
f, - ,' ; e " | |||
i' 3 | i' 3 | ||
[. - . . . .e | [. - . . . .e | ||
$ *.J.s | $ *.J.s | ||
, y.- 1, | , y.- 1, | ||
| Line 1,358: | Line 600: | ||
. ; * ; i r.. .,. | . ; * ; i r.. .,. | ||
..u - :<. | ..u - :<. | ||
r ~. . | r ~. . | ||
I. . | I. . | ||
r. | r. | ||
. , l | . , l | ||
-l - | -l - | ||
.c .i . ? | .c .i . ? | ||
g ,- ,- | g ,- ,- | ||
' vp j ,- . | ' vp j ,- . | ||
,l y ; | |||
,l | |||
y ; | |||
. i . | . i . | ||
..;/ | ..;/ | ||
l k ,. | l k ,. | ||
* w. | * w. | ||
,/ | ,/ | ||
. . ~. . , | . . ~. . , | ||
: l. f | : l. f | ||
.l - .a.' | .l - .a.' | ||
y-y: | |||
y- | |||
y: | |||
. %,.... ,, - r | . %,.... ,, - r | ||
.s. | .s. | ||
.,..w. . .u | .,..w. . .u | ||
,e/ 4,, .- ? .) | ,e/ 4,, .- ? .) | ||
L. ~''c.... | L. ~''c.... | ||
/k, s'',e ' | /k, s'',e ' | ||
.;g | .;g | ||
:. 9e. . . ...,- .; -} | :. 9e. . . ...,- .; -} | ||
/> ,g-/,c, /*. ' <>,f-' | /> ,g-/,c, /*. ' <>,f-' | ||
. . ;4 | . . ;4 | ||
.8 | .8 | ||
\ | \ | ||
i | i | ||
-, , .. . . .>*p*,....'_.,. | -, , .. . . .>*p*,....'_.,. | ||
~ | ~ | ||
~: ' . s. | ~: ' . s. | ||
. . .-l | . . .-l | ||
: b. - | : b. - | ||
. t , . . .. | . t , . . .. | ||
t. | t. | ||
' Ky ... s. .l | ' Ky ... s. .l | ||
:, - 'yJ, , , ! | :, - 'yJ, , , ! | ||
"} | "} | ||
J A .____. ..._.'m *' | J A .____. ..._.'m *' | ||
' f: - J | ' f: - J P110TOCRAril 0F EXISTII;C REUAR ABOUND PE::ETRATION AT 103* | ||
P110TOCRAril 0F EXISTII;C REUAR ABOUND PE::ETRATION AT 103* | |||
FIGURE 5 SilEET 2 OF 2 | FIGURE 5 SilEET 2 OF 2 | ||
+e | +e | ||
'' j | '' j | ||
!1 | !1 | ||
-) Y \ | -) Y \ | ||
,o t I I | ,o t I I | ||
, I ,. | , I ,. | ||
.. * / I | .. * / I | ||
,1 | ,1 l | ||
l(. | |||
e i i | |||
e | |||
i i | |||
* i j 1.b. ' | * i j 1.b. ' | ||
,J 8 I | ,J 8 I | ||
t,L | t,L | ||
& i L | & i L | ||
Q s ..f | Q s ..f | ||
- N, h, ]. . | - N, h, ]. . | ||
Il n=g f DC y -- | Il n=g f DC y -- | ||
,/ // ,;,m - | ,/ // ,;,m - | ||
- -. hf | - -. hf | ||
. n-I | . n-I | ||
-> s ,,- ,9 /,- | -> s ,,- ,9 /,- | ||
q | q | ||
/ W g' M | / W g' M | ||
} | } | ||
/ | / | ||
'd 2 i- ^i ; | 'd 2 i- ^i ; | ||
!A J l | !A J l | ||
! is l lI' I | ! is l lI' I | ||
" J | " J | ||
| Line 1,508: | Line 678: | ||
.: / g aw, l | .: / g aw, l | ||
t Es/ e 9' | t Es/ e 9' | ||
m | m | ||
-w d He O- | |||
-w d | |||
: i. #, E! | : i. #, E! | ||
N \ | N \ | ||
1 | 1 | ||
,] | ,] | ||
- t,' f A>$ | - t,' f A>$ | ||
,A v | ,A v | ||
g gn | g gn | ||
}W d | }W d | ||
| Line 1,536: | Line 695: | ||
__. g m 3 | __. g m 3 | ||
m | m | ||
't | 't s M- r- 9 | ||
s M- r- 9 | |||
.E 7 | .E 7 | ||
. b-s< g s4 83 | . b-s< g s4 83 ya U s tu B; | ||
ya | |||
U s tu B; | |||
: v. .ji r m c- | : v. .ji r m c- | ||
- , . . . , 6 % I s .i: . . . | - , . . . , 6 % I s .i: . . . | ||
. _. n _i . | . _. n _i . | ||
| Line 1,557: | Line 705: | ||
- - .., M , | - - .., M , | ||
*4 : | *4 : | ||
'*J I l - | '*J I l - | ||
O ,t-- ' | O ,t-- ' | ||
_i (O | _i (O | ||
, ,) i g S w GO S | |||
, ,) i g S w GO | g :. ' | ||
S | |||
- N m 2 I; | - N m 2 I; | ||
...' c m | ...' c m | ||
s t x\ # ' | s t x\ # ' | ||
\ | \ | ||
pr e 4.; 'P' 3,l , / -.! -Q j | |||
pr e 4.; 'P' | ,nj(' h4 p w *wq | ||
- ?< p-(7 . | |||
3,l , / -.! -Q j | |||
,nj(' h4 | |||
p w *wq | |||
- ?< p- | |||
(7 . | |||
,, t ... . ., 9 | ,, t ... . ., 9 | ||
'(TTF)g)' /- v : | '(TTF)g)' /- v : | ||
I | I | ||
" j\ N' ' ' | " j\ N' ' ' | ||
=$ E | =$ E j , | ||
j , | |||
: o \ | : o \ | ||
s ii , | s ii , | ||
~y .u d - + _ _ _ . _ | |||
~y .u | |||
d - + _ _ _ . _ | |||
f -)C" hf~. l V2" i | f -)C" hf~. l V2" i | ||
\'''ADfYl.I,Nn~.M | \'''ADfYl.I,Nn~.M | ||
<< l i | |||
<< l | |||
i | |||
,S_i,.. - | ,S_i,.. - | ||
'p (~~~.__ . 2RjNG !? | 'p (~~~.__ . 2RjNG !? | ||
N FIGUP.E 6 S!!EET 10F 2 | |||
N | |||
FIGUP.E 6 S!!EET 10F 2 | |||
A .- ' ' | A .- ' ' | ||
..f . | ..f . | ||
( .. | ( .. | ||
| Line 1,634: | Line 739: | ||
.Z. 10" l | .Z. 10" l | ||
- ' ~~[ ( 8 - R EQ' D) - | - ' ~~[ ( 8 - R EQ' D) - | ||
p/ | p/ | ||
m h g | m h g | ||
(( | |||
-[~ ''$ w | -[~ ''$ w | ||
{ , , | { , , | ||
\ O | \ O | ||
\,/ | \,/ | ||
/ | / | ||
| Line 1,657: | Line 752: | ||
\ -- | \ -- | ||
*S I % 7'. - N ' | *S I % 7'. - N ' | ||
'~ | '~ | ||
ok -./OFTJONAL . | ok -./OFTJONAL . | ||
,g-x n ' | |||
,g- | |||
x n ' | |||
it | it | ||
. tu n | . tu n | ||
.k | .k | ||
,j g Y ~- | ,j g Y ~- | ||
~- | ~- | ||
/ " | / " | ||
sN, App'L f"k) ~ | sN, App'L f"k) ~ | ||
(*) REQ'D - | (*) REQ'D - | ||
,FA' ~,~' | ,FA' ~,~' | ||
~ :: ,,< | ~ :: ,,< | ||
~ | ~ | ||
#[ , | #[ , | ||
h, | h, | ||
# %j, s | # %j, s | ||
'ce | 'ce AO | ||
AO | |||
'9 | '9 | ||
?o. | ?o. | ||
a4 // | a4 // | ||
| Line 1,711: | Line 777: | ||
.- ADP'L I /2" TH!CK. SLEEVE | .- ADP'L I /2" TH!CK. SLEEVE | ||
~ | ~ | ||
in | in | ||
: a. '' -- 'd ADD'L. J 2" TH!CK T41NG 8. | : a. '' -- 'd ADD'L. J 2" TH!CK T41NG 8. | ||
!~<! !- E . | !~<! !- E . | ||
e p | e p | ||
~ ' ' - | ~ ' ' - | ||
: 1. . _ . . . | : 1. . _ . . . | ||
If s r_. | |||
If | |||
s r_. | |||
THis AR5 A' CF .-- 5" i GU55ET IS CCM51DERED : | THis AR5 A' CF .-- 5" i GU55ET IS CCM51DERED : | ||
/PECTtvE IN O .~ ~ ~I e RE515 TING TOR\ 51 %Chi ''' lP | /PECTtvE IN O .~ ~ ~I e RE515 TING TOR\ 51 %Chi ''' lP | ||
= | = | ||
'y | 'y | ||
''N / | ''N / | ||
(\ I!dTelE5LEEVE | (\ I!dTelE5LEEVE | ||
~~ | ~~ | ||
w. | w. | ||
~ | ~ | ||
%7'/ .G U 3 5 E.T._ f2. | %7'/ .G U 3 5 E.T._ f2. | ||
s | s | ||
| Line 1,763: | Line 799: | ||
N/ | N/ | ||
/ ' | / ' | ||
~.CU T~ LiNE~.~___ __ | ~.CU T~ LiNE~.~___ __ | ||
\ _ TORS!CNAC.~' RESIST $ndi LF ' | \ _ TORS!CNAC.~' RESIST $ndi LF ' | ||
'iHIS.. ARE A .CCMP5N S AT E D ;_ .. | 'iHIS.. ARE A .CCMP5N S AT E D ;_ .. | ||
_b_Y__.. ADD _ElQMAL ~ LUG 5 | _b_Y__.. ADD _ElQMAL ~ LUG 5 | ||
_- DE51G[JCON51 DERAT CLE [ OFT AK :~_ ' . .. EOR TO | _- DE51G[JCON51 DERAT CLE [ OFT AK :~_ ' . .. EOR TO | ||
. _ .u...G U 55ETS ~ NOTC HE D -~ | . _ .u...G U 55ETS ~ NOTC HE D -~ | ||
_ T.~~ _ | _ T.~~ _ | ||
TEN DON ~~~ 5HEXTH 1RG ~ ~. ._. | TEN DON ~~~ 5HEXTH 1RG ~ ~. ._. | ||
FIGURE 7 | FIGURE 7 | ||
m....... . . . | m....... . . . | ||
- .. 8 g_ - | - .. 8 g_ - | ||
e, 1 | e, 1 | ||
| Line 1,797: | Line 816: | ||
- u) ' | - u) ' | ||
I y dj t | I y dj t | ||
\ s- .g J c k 6 | \ s- .g J c k 6 | ||
% f-4 F. = | % f-4 F. = | ||
o a | o a | ||
g-5' a v. p | g-5' a v. p lg-~ A a x3 b 5 2 | ||
- $* tr aa^.e a | - $* tr aa^.e a | ||
< O w - y-~ - | |||
< O | |||
w - y-~ - | |||
ns - | ns - | ||
el <o g- 4 | el <o g- 4 | ||
< e2 | < e2 2 | ||
19 se | |||
= f2~ L) | = f2~ L) | ||
~ g g us f T n y .t Y" \e ~ | ~ g g us f T n y .t Y" \e ~ | ||
4) | 4) | ||
U .. ,. I ? | U .. ,. I ? | ||
| Line 1,825: | Line 837: | ||
r , s . .* | r , s . .* | ||
dT'' | dT'' | ||
j E $.u .2' Y Wo 0 2 * :. | j E $.u .2' Y Wo 0 2 * :. | ||
W | W | ||
\~ 2~ | \~ 2~ | ||
y 9 2 $ d* . - | y 9 2 $ d* . - | ||
* 'n A . | * 'n A . | ||
* Ox: V) w 1-2N / | * Ox: V) w 1-2N / | ||
$ I | $ I | ||
.m d tu tj P- d ~2 | .m d tu tj P- d ~2 6 . ..y 2 | ||
6 . ..y 2 | |||
4 2' T A2 { %~ | 4 2' T A2 { %~ | ||
2 r of S i (.- | 2 r of S i (.- | ||
| Line 1,844: | Line 851: | ||
, - - - . q ,q 5 g T [1 2 1 | , - - - . q ,q 5 g T [1 2 1 | ||
3 Wd il I % | 3 Wd il I % | ||
- a= i p .~t~ 2 oe . | - a= i p .~t~ 2 oe . | ||
4 lI | 4 lI | ||
~1 | ~1 | ||
&c x | |||
&c | ya '0) 4' 2. I .I j> I ' | ||
d \ | d \ | ||
~sg / .dl | ~sg / .dl q7 1 "j r a | ||
<m V C | |||
q7 1 "j r a | uJ r km ' | ||
<m V | |||
q t | q t | ||
- m ' f\1 Y | - m ' f\1 Y | ||
3 b ,,.. | 3 b ,,.. | ||
' .+T - }d v* | ' .+T - }d v* | ||
f | f 3 l h: D A sn e 1 V $ | ||
3 l h: D | |||
A sn e 1 V $ | |||
f dsy b *ye235f E]'.:- 18 . | f dsy b *ye235f E]'.:- 18 . | ||
h 3 Y | h 3 Y | ||
Tfi | Tfi | ||
, m | , m | ||
, ( ii J d o s. | , ( ii J d o s. | ||
| Line 1,884: | Line 873: | ||
- Nh i : ' dvi | - Nh i : ' dvi | ||
= .1 , | = .1 , | ||
al 4 ^ | |||
*Ob w q | *Ob w q | ||
:= k en 4 | := k en 4 | ||
$2 h ,j. .F | $2 h ,j. .F l, ' Q R Gl V " .. / ~< u .ua i | ||
FIGURE S SIIEET 1 0F 9 | |||
l, ' Q R Gl | |||
V " .. / ~< u .ua | |||
s- ,. | s- ,. | ||
5 y | 5 y | ||
0 > m ,N1 ,. | 0 > m ,N1 ,. | ||
~ a 4g . | ~ a 4g . | ||
. . l.. . . | . . l.. . . | ||
m ' .:. | m ' .:. | ||
4 | 4 | ||
-- r- 7 W-- | |||
-- r- 7 | |||
W-- | |||
^ ~ ~ ~ | ^ ~ ~ ~ | ||
\__.\,- s D' *h | \__.\,- s D' *h | ||
. ._ e g., | . ._ e g., | ||
Ili[I __ ") y[.. - A L_i _ - _,_. 7 L 2 | Ili[I __ ") y[.. - A L_i _ - _,_. 7 L 2 | ||
> \ r \- - | > \ r \- - | ||
L- Y | L- Y | ||
} - | } - | ||
_= .. - | _= .. - | ||
l t | l t | ||
e4 | e4 | ||
\ | \ | ||
"I. $y I }, N \t.) | "I. $y I }, N \t.) | ||
,9_. | ,9_. | ||
2 y , _ . | 2 y , _ . | ||
. .... -(- ' | . .... -(- ' | ||
, 30 | , 30 | ||
(/ -d f' ( | (/ -d f' ( | ||
V h t | V h t | ||
\- ".g\ | \- ".g\ | ||
~ | ~ | ||
+ | + | ||
) - | ) - | ||
-n -- | -n -- | ||
: t. 1_ . | : t. 1_ . | ||
(, 's l | (, 's l L y | ||
L y | |||
-1 | -1 | ||
- P n | - P n i Nt F -p i 4 - | ||
i Nt F -p i 4 - | |||
4. | 4. | ||
A o | A o | ||
, / Q < | , / Q < | ||
b- - | b- - | ||
21 g :; | 21 g :; | ||
z y 8 | z y 8 | ||
= | = | ||
c3 | c3 | ||
{P t..g-5 i - i, - _ i 4 Bu7 | |||
{P t..g- | |||
5 i - i, - _ i 4 Bu7 | |||
- to . 1 d tt 0 *-4 -4 | - to . 1 d tt 0 *-4 -4 | ||
$ l}Il | $ l}Il n | ||
a1 44 ,\i -se' $, - 5 2 4 -- r ul -- D M 71 b y *~3 1 O m y ) .i o a 4 t- - | |||
c - | c - | ||
g._20 +, 206 o 9 2 2' - 1 l l . _ | g._20 +, 206 o 9 2 2' - 1 l l . _ | ||
a S ;e . . -4 Q.- | a S ;e . . -4 Q.- | ||
333 o 0 ~ 4Ts s | 333 o 0 ~ 4Ts s 1 '< 1 y B o > | ||
1 '< 1 y B o > | |||
7 a'07 | 7 a'07 | ||
~ | ~ | ||
Ii p - | Ii p - | ||
-e qw tu tb | |||
$ ~1 xY*5 ._I b t-- i.n v1 -4 vi .y - | |||
-e | L' , | ||
qw tu tb | |||
$ ~1 xY*5 ._I b | |||
t-- i.n v1 -4 vi .y - | |||
.. I | .. I | ||
- y-O b | - y-O b | ||
_) | _) | ||
Q - | Q - | ||
| Line 2,019: | Line 944: | ||
.& n, . r-k U ! | .& n, . r-k U ! | ||
d i-A @' | d i-A @' | ||
G2 v ' , | G2 v ' , | ||
4 o w iu r.- 3._ | 4 o w iu r.- 3._ | ||
| Line 2,028: | Line 952: | ||
~ | ~ | ||
-g to 4 $5 sg l ~- . | -g to 4 $5 sg l ~- . | ||
- I | - I | ||
. g f - | |||
. g | |||
f - | |||
I i | I i | ||
l ... | l ... | ||
i FIGURE 8 - | i FIGURE 8 - | ||
8' | 8' SHEET 2 0F 9 I . | ||
SHEET 2 0F 9 | |||
I . | |||
4 g Eyss} A 4 S I 'f - | |||
l s | |||
4 | j g Mtatt. S]M. fE'W ' | ||
g Eyss} A 4 S I 'f | |||
l | |||
@ 'lY , | @ 'lY , | ||
gge-Alte.,3 PEP }tuc>oo | gge-Alte.,3 PEP }tuc>oo | ||
.5%ATH 4q Hl.S-o'6"l , | .5%ATH 4q Hl.S-o'6"l , | ||
o - | o - | ||
- .- r - i | - .- r - i | ||
/ | / | ||
M Atu 6 td Elm, king S iFFE9En. Q c ,,,, e,, op m c. . | M Atu 6 td Elm, king S iFFE9En. Q c ,,,, e,, op m c. . | ||
,enn ,zww 4g inquLegioea cP - | ,enn ,zww 4g inquLegioea cP - | ||
l e ct e it. - - . | l e ct e it. - - . | ||
t L lo s'-1 (c..s.> | t L lo s'-1 (c..s.> | ||
. -. 7 q -i; ' | . -. 7 q -i; ' | ||
w | w | ||
| Line 2,088: | Line 979: | ||
-2 | -2 | ||
__1u. n_eA,_e | __1u. n_eA,_e | ||
- =_ ._ . 6,1.c- | - =_ ._ . 6,1.c- | ||
--*4 l | --*4 l | ||
g l:l sn. | g l:l sn. | ||
M i . - | M i . - | ||
u"N - | u"N - | ||
l (T.sur2ou 5HEATt4tilL7 Hs-osr, .- ,, ! V. | l (T.sur2ou 5HEATt4tilL7 Hs-osr, .- ,, ! V. | ||
7 | 7 | ||
, j- , | , j- , | ||
o _ | o _ | ||
t | t | ||
--A. . - _ _- __ | --A. . - _ _- __ | ||
0 l % - | 0 l % - | ||
'Ia i } | 'Ia i } | ||
2 Sg g o. -} - > ExtSJ.frIBtREGA:::. | 2 Sg g o. -} - > ExtSJ.frIBtREGA:::. | ||
l'- Io _ MD \\**h <@T To ACCOMIAo oATF . | l'- Io _ MD \\**h <@T To ACCOMIAo oATF . | ||
'I . Testoow *EATains i | 'I . Testoow *EATains i Q- t:E-Atte.::NMGr4T } | ||
Q- t:E-Atte.::NMGr4T } | |||
i: | i: | ||
goo - | goo - | ||
YAc p AL_, EbbVA 8 ota AT Matt 4 $}%. {6tJE}rz A | YAc p AL_, EbbVA 8 ota AT Matt 4 $}%. {6tJE}rz A | ||
--l | --l | ||
( A 2.itau]i-\ q *) | ( A 2.itau]i-\ q *) | ||
cou]AtumeuT Look.tsc3 Ita) f (ouTsioe dF i 2:. y ' | cou]AtumeuT Look.tsc3 Ita) f (ouTsioe dF i 2:. y ' | ||
: i. - | : i. - | ||
~ _ _ _ _ _ __ _ _ _ _ . _ _ _ _ _ _ _ _ . | ~ _ _ _ _ _ __ _ _ _ _ . _ _ _ _ _ _ _ _ . | ||
d upin q m pene. ,, !~ | d upin q m pene. ,, !~ | ||
g 3f s' 46 ,. | g 3f s' 46 ,. | ||
v | v | ||
( | ( | ||
t e. Au e g r, coma siscqitie! q - | t e. Au e g r, coma siscqitie! q - | ||
Riv.,- os7 s . | Riv.,- os7 s . | ||
ulAAtu Sp4 $60&. b. | ulAAtu Sp4 $60&. b. | ||
( , | ( , | ||
tenot SMfE"E" I N | tenot SMfE"E" I N | ||
) | ) | ||
i - . _M-.. TW) -f:. : . - - - - - . | i - . _M-.. TW) -f:. : . - - - - - . | ||
"j | "j | ||
{ ~ ~ Wz' ( 5H '? A S i fIk-2%L,'ba.3 | { ~ ~ Wz' ( 5H '? A S i fIk-2%L,'ba.3 e . , | ||
e . , | |||
g | g | ||
, l h ' | , l h ' | ||
, ..._r 0f$$o? | , ..._r 0f$$o? | ||
\~ \ Mb.7oO'7(c.J.3 | \~ \ Mb.7oO'7(c.J.3 | ||
[ ". / __\ | [ ". / __\ | ||
4__ -- | 4__ -- | ||
i | i | ||
" ' ~ ~ - | " ' ~ ~ - | ||
6 | 6 | ||
~ b''*I .4 I6 IEE E A " 6-{o. Hook- | ~ b''*I .4 I6 IEE E A " 6-{o. Hook-cot:: HEC oF f566t c. ^c c * "^ o *T* | ||
cot:: HEC oF f566t c. ^c c * "^ o *T* | |||
Ta te ci4 To Aum $"T i I E'4ovm To . | Ta te ci4 To Aum $"T i I E'4ovm To . | ||
It4 stat.LAliou op CAF d i E'J*ou | It4 stat.LAliou op CAF d i E'J*ou | ||
* EA'IH'"'t k'cALicoMee)J s | * EA'IH'"'t k'cALicoMee)J s G **** . | ||
G **** . | |||
<1 - | <1 - | ||
f tt;T, t L ELewge9 AT, M^m MN\- peneTiz.^i, ion . . | f tt;T, t L ELewge9 AT, M^m MN\- peneTiz.^i, ion . . | ||
| Line 2,197: | Line 1,035: | ||
(ou}sioe op, 'conysue:g . | (ou}sioe op, 'conysue:g . | ||
1 | 1 | ||
=- *- * , | =- *- * , | ||
.we | .we | ||
~l 4%-A L %,, | ~l 4%-A L %,, | ||
. . ,j , | . . ,j , | ||
. m. _ | . m. _ | ||
'l }V 7 -~~ | 'l }V 7 -~~ | ||
8 j b t/\A.,td 6tof605 | |||
8 | |||
j b t/\A.,td 6tof605 | |||
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!I f | !I f | ||
/ . | / . | ||
//.s > | //.s > | ||
: l. - | : l. - | ||
/ /, | / /, | ||
,/ <. . | ,/ <. . | ||
i | i | ||
, Jeu =ons'reMatet~ | , Jeu =ons'reMatet~ | ||
I" | I" | ||
. . _br 'C L -. I l | . . _br 'C L -. I l | ||
f | f | ||
- ~s l | - ~s l | ||
- r i i/ / | - r i i/ / | ||
l pr } -l . | l pr } -l . | ||
t | t | ||
.$ ' \ | .$ ' \ | ||
, ,. j I .'l o 5 - 7 [C d D g | |||
, ,. j I .'l o 5 - 7 [C d D | |||
g | |||
\! | \! | ||
E._ , | E._ , | ||
ou}dioE q9 ggi | ou}dioE q9 ggi | ||
% Ace e Pf?E-Ft.ck.ED Fbov4AELS TYf? | % Ace e Pf?E-Ft.ck.ED Fbov4AELS TYf? | ||
| Line 2,280: | Line 1,068: | ||
W At.L. | W At.L. | ||
' o F- bc1 pac.k.- (,$p ac c . ;g t ') e | ' o F- bc1 pac.k.- (,$p ac c . ;g t ') e | ||
+ | + | ||
FIGUPI 3 | FIGUPI 3 | ||
-e SIIEET 5 0F 9 | -e SIIEET 5 0F 9 g - - . . - ., - w g m | ||
g - - . . - ., - w g m | |||
O e e e- | O e e e- | ||
~ | ~ | ||
g $ _ | g $ _ | ||
l h | |||
h | |||
,5 e k . | ,5 e k . | ||
./ - | ./ - | ||
| Line 2,320: | Line 1,082: | ||
/ | / | ||
/- ~= . | /- ~= . | ||
A I' l .-._ b a c o 4 it 5 12. W o k | A I' l .-._ b a c o 4 it 5 12. W o k | ||
/ | / | ||
a G e K 'Aid c) f- 7 i / eyw . | |||
g s | |||
a G e K 'Aid c) | l CI- ] / | ||
f- 7 i / eyw | |||
g | |||
+ cTYr.) . | + cTYr.) . | ||
\ --- ! | \ --- ! | ||
i i ; | i i ; | ||
t.' .u l v_= . - - J.- / i ._g - | t.' .u l v_= . - - J.- / i ._g - | ||
^ | ^ | ||
g C M* | g C M* | ||
L i | L i | ||
- . 1 . _. | - . 1 . _. | ||
, . . I | , . . I w | ||
w | |||
' [ | ' [ | ||
P l 3 I !IS !f" ' | P l 3 I !IS !f" ' | ||
_- so' l l[db'[] [ | _- so' l l[db'[] [ | ||
i 'i l ! | i 'i l ! | ||
OU b a r.39 FA.: & | OU b a r.39 FA.: & | ||
c.oo xjataaw"\ , | c.oo xjataaw"\ , | ||
WAt.L. . | WAt.L. . | ||
I ~ | I ~ | ||
1 . | 1 . | ||
@C.TlCN- . . - - | @C.TlCN- . . - - | ||
e e, em m mese- e | |||
e | |||
* 4 e e.eemiis GD FIGURE 8 SHEET 6 0F 9 | * 4 e e.eemiis GD FIGURE 8 SHEET 6 0F 9 | ||
= _ _ - _ . -- - _. __ . - . - _ _ . - - _ _ _ _ - _ _ _ - _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ - - _ - - _ - _ _ - _ _ _ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ - . | = _ _ - _ . -- - _. __ . - . - _ _ . - - _ _ _ _ - _ _ _ - _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ - - _ - - _ - _ _ - _ _ _ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ - . | ||
. . .....m... . | . . .....m... . | ||
s. | s. | ||
N'' ' e 1A Atu S p . (1 646: . | N'' ' e 1A Atu S p . (1 646: . | ||
f; 4' | f; 4' | ||
| Line 2,396: | Line 1,118: | ||
7// | 7// | ||
,,e_ | ,,e_ | ||
, I | , I | ||
/. ' ' | /. ' ' | ||
(ue4a11Sjp. Roc 4 4 . . | (ue4a11Sjp. Roc 4 4 . . | ||
r . | r . | ||
| Line 2,407: | Line 1,125: | ||
Ph:2 gg . | Ph:2 gg . | ||
ggg c-ou}{5 trig 4 # C.cu Att4MEM} VJ4L o / / | ggg c-ou}{5 trig 4 # C.cu Att4MEM} VJ4L o / / | ||
F i | |||
g'dXtS{,}ggooM SHEAIMM3 | |||
F | ! N y7-- | ||
! N | |||
y7-- | |||
'' .I y _ | '' .I y _ | ||
. _ Eb. 303'-] (C. .l.) | . _ Eb. 303'-] (C. .l.) | ||
1 5 ii U L! bAECUP DAC 6CitoL1 . | |||
1 5 ii U L! bAECUP DAC | |||
6CitoL1 . | |||
t | t | ||
' 4 - -- | ' 4 - -- | ||
l t i b | l t i b | ||
b FICURE 8 SHEET 7 0F 9 f' | |||
( - - --- --- | ( - - --- --- | ||
i *====e... ,",, | i *====e... ,",, | ||
meeO Q e @ ' ' * | meeO Q e @ ' ' | ||
* e 0 | |||
e 0 | |||
, e. e e e | , e. e e e | ||
0 e | 0 e | ||
r,u. . | r,u. . | ||
L ham s}M . IB# - | L ham s}M . IB# - | ||
uta STM6HEL k | uta STM6HEL k l . | ||
4 I | |||
4 | |||
I | |||
/ . | / . | ||
/,t - | /,t - | ||
*73 | *73 | ||
,a sequaq p. | ,a sequaq p. | ||
s | s | ||
; h 1/ | ; h 1/ | ||
1 | 1 g | ||
g | |||
P=---- | P=---- | ||
62" i !_ | 62" i !_ | ||
/.,, - . , - | /.,, - . , - | ||
~ | ~ | ||
- i s., e .i 1, - l g ' . | |||
- i s., e .i 1, - l | |||
g ' . | |||
7./ _ | 7./ _ | ||
./ / | ./ / | ||
"-r / r,. ; .i . | "-r / r,. ; .i . | ||
me- | me- | ||
.::- / 1 's .. . | .::- / 1 's .. . | ||
E'loI_1.(c3-) | E'loI_1.(c3-) | ||
e d , | e d , | ||
e * , | e * , | ||
| Line 2,519: | Line 1,171: | ||
"' gon - suqukap qcauT (A?nc. C ~33- | "' gon - suqukap qcauT (A?nc. C ~33- | ||
> w 00 Stc& ,#A ' | > w 00 Stc& ,#A ' | ||
C of?. t7 ty PA/.'.k. (6 E' *. C Ml) 5 | C of?. t7 ty PA/.'.k. (6 E' *. C Ml) 5 | ||
. co ,AwseM, $ | . co ,AwseM, $ | ||
Q ' | Q ' | ||
h6CTIC R e | |||
h6CTIC R | t- , | ||
e I | |||
e | |||
e | |||
I | |||
! FIGURE 8 a | ! FIGURE 8 a | ||
4 - | 4 - | ||
SilEET 8 0F 9 | SilEET 8 0F 9 i | ||
g_ _ | |||
i | |||
. +- | . +- | ||
i . , , | i . , , | ||
l _ *o.. , | l _ *o.. , | ||
.; m ' | .; m ' | ||
, e | , e | ||
- I | - I | ||
/ .. | / .. | ||
.,,/ . , | .,,/ . , | ||
", i ( | ", i ( | ||
// / | // / | ||
,/ ,,- . | ,/ ,,- . | ||
/ -> LM aim 6}M.p6c5. | / -> LM aim 6}M.p6c5. | ||
, k,1Ng qtFF61Jer t , | , k,1Ng qtFF61Jer t , | ||
i | i | ||
/1. " | /1. " | ||
1 ' | 1 ' | ||
m! i t- Coz - | m! i t- Coz - | ||
~~ | ~~ | ||
gNc 9 SMEA}RI% | gNc 9 SMEA}RI% | ||
i l _ | i l _ | ||
.goe / | .goe / | ||
----e . I- l J ]N ' ,, /,, | ----e . I- l J ]N ' ,, /,, | ||
b (D '* ~ | b (D '* ~ | ||
'll ,/ | 'll ,/ | ||
g ll 17 - | |||
g | |||
ll 17 - | |||
' ' gh,] | ' ' gh,] | ||
.4 18'P ' | .4 18'P ' | ||
, . h- , | , . h- , | ||
n ' | n ' | ||
e | e o uJsc e p cra ,, | ||
peg.yAc'cp FlonA6'.~ TYPG cckr*/quuggy Mot 4 - SMrstNL cycauf (67%. <*.**b) | |||
o uJsc e p cra ,, | |||
peg.yAc'cp FlonA6'.~ TYPG | |||
cckr*/quuggy Mot 4 - SMrstNL cycauf (67%. <*.**b) | |||
(uA O C DCT PML (5{ U. C.'.St ) | (uA O C DCT PML (5{ U. C.'.St ) | ||
6 8cTtol4 . | 6 8cTtol4 . | ||
M - | M - | ||
i FIGUPI 8 a SllEET 9 0F 9 I | |||
i FIGUPI 8 | |||
a SllEET 9 0F 9 | |||
I | |||
t. | t. | ||
r | r | ||
[.: | [.: | ||
-1 5 0 2 ; | -1 5 0 2 ; | ||
puRING OVER STRES5_-' | puRING OVER STRES5_-' | ||
1602-y 4 18UTTRE55 '*1 , | 1602-y 4 18UTTRE55 '*1 , | ||
(402 < j,' ',,__ -x | (402 < j,' ',,__ -x | ||
( ~ 4.60TTRES6 636,1402 TIME LO65 i | ( ~ 4.60TTRES6 636,1402 TIME LO65 i | ||
1 Ill4<O -lo33, l' K' ._ 245.3 CONSTANT . . - | 1 Ill4<O -lo33, l' K' ._ 245.3 CONSTANT . . - | ||
' 1203,4 K 1112.4 " , ,105 6, I X .. E''* K< I ej;93-.7 g | ' 1203,4 K 1112.4 " , ,105 6, I X .. E''* K< I ej;93-.7 g | ||
p5/o,1 EFFECTIVn >,e 43*&g /,,iosi.exg | p5/o,1 EFFECTIVn >,e 43*&g /,,iosi.exg | ||
./ 54,.7 g, :. | ./ 54,.7 g, :. | ||
| Line 2,691: | Line 1,236: | ||
l: | l: | ||
~ | ~ | ||
;22'41 I INtMUM EFFECTIVE | ;22'41 I INtMUM EFFECTIVE i | ||
i | |||
. 61. GS . PRESTRE55 266 9d-~-( li' IERO 128.7G, -* e . (SEE TAMLE () | . 61. GS . PRESTRE55 266 9d-~-( li' IERO 128.7G, -* e . (SEE TAMLE () | ||
gy, g7j. * | gy, g7j. | ||
* FEET ~ | |||
FEET ~ | |||
124.78''' | 124.78''' | ||
LOW PT. [I - | LOW PT. [I - | ||
A - | A - | ||
in i .. | in i .. | ||
:y , | :y , | ||
O . . | O . . | ||
: h. . | : h. . | ||
-i ' | -i ' | ||
=:zERO FORCE ' ''.~ - | =:zERO FORCE ' ''.~ - | ||
Tt i | Tt i | ||
-> DISTANCE FROM RE rERENCE BUTTRESS TYPICAL FORCE DI AGRAll FOR DEFLECTED IIDOP TENDONS F10URE 9.- | |||
-> DISTANCE FROM RE rERENCE BUTTRESS | |||
TYPICAL FORCE DI AGRAll FOR DEFLECTED IIDOP TENDONS F10URE 9.- | |||
i | i | ||
..}} | ..}} | ||
Latest revision as of 23:47, 15 March 2020
| ML19329E788 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 06/17/1977 |
| From: | Dhar B BECHTEL GROUP, INC. |
| To: | |
| Shared Package | |
| ML19329E780 | List: |
| References | |
| NUDOCS 8006170942 | |
| Download: ML19329E788 (30) | |
Text
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V. . , SUBJECT
'MISPLiCED TENDON SHEATHINGS MIDLAND PROJECT BECHTEL JOB NO. 7220 FINAL REr0RT I
e Subsitted by: ~ /C l B. IDhar l O. .t' - ' :-^ I
-i Approved by: @ 4Y FA M s; G ot# l IR. L. Castleberry -
Report Date: 6-'/3-7 7 , Revised: 8 " / 7--7 7- l l 8006170 t .
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9 INTRODUCTION This report summarizes Project Engineering's evaluation of. four mis-placed tendon sh'eachings, and completes Project Engineering's action required to resolve the problem. DEFICIENCY On April.19, 1977, a nonconformance to the project design documents was found, involving four misplaced tendon sheathings to be installed at approximate elevation 700'-704' in the Midland Unit 1 containment build-ing. As shown on the vendor drauings, these four tendons were to be . deflected downward to clear the two main steam penetrations at center *
'line elevation 707'0". Contrary to this, two tendon sheathings (H32-036 and H13-035) were installed level, 'and two tendon sheathings (H32-037 and H13-037) were not installed in the local area directly below the penetrations. Concrete had been placed to a construction joint at elevation 703'-7" approximately one week before this nonconformance was found. This nonconformance was found by the survey team during pre- '
parations for the next wall lift. The original design and "as-built" alignment of these tendons are shown in Figure 1. CURRECTIVE ACTION Project Engineering has reviewed the "as-built" condition and has studied various relocations for the affected *endons. Based on this review, it was concluded that the original design criteria could be met by rerouting one sheathing originally planned ,for below the penetration to a new-alignment above the penetration. Sheathing H13-037 can be installed below the penetration. There is a 14 inch clearance between the construction joint and the ' bottom of the penetration. This will allow a 6 inch clearance between the realigned sheathing (H13-037) and the edge of the penetration, and a 6-1/2 inch center-to-center spacing to the adjacent horizontal sheathing (H32-036). The 6 inch clearance to the penetration'is consistent with the recommendations of BC-TOP-5A, Rev. 3 (Ref erence 1), and the 6-1/2 inch center-to-center spacing between sheathings is consistent with the original design. The tendon sheathing-(H32-037).is rerouted above the penetration, necessitating minor adjustments of one adjacent tendon (H13-038). Both relocated tendon sheathings still allcw a minimum 25'-0" bending radius about the penetrations. The two level tendon sheathings (H32-036 and H13-036) do not require modifications.
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- The new alignment for the tendon sheathings is shown in Figure 2. The differential friction. losses between the reviced alignment and the original alignment have been evaluated by INRYCO, the vendor for the post tensioning system design. The results are summarized in Table 1. A typical force diagram for a dc51ected hoop tendon is presented in Figure 9. It is evident from the tabulated results that the friction losses in the ' subject tendons have been reduced due to this revised alignment. Lower f riction losses improve the capability of the con-tainment structure to resist forces like internal pressure. Hovever, the variations are small in relation to the applied force, and are considered insignificant.
The main steam penetration openings are 4'-6" in diameter, which is less e than two and one-half times the 3'-6" vall thickness. Therefore, the main steam penetrations are classified as small penetration openings, according to the provisions in BC-TOP-5A. In the original design, no special analysis was performed to determine the stresses in concrete around a small penetration due to prestressing forces. The stresses at the center of a small opening, deter =ined from the axisymmetric analysis for prestressing forces, were distributed around the opening taking into consideration the reduction in wall area due to the opening. This i analytical approach is consistant with the provisions of EC-TOP-5A. Dua to the the realign =ent of the tendons, none of the design parameters Y 1a ...
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calculations for concrete were required. Also, the new alignment satisfies all the BC-TOP-5A requirements adopted by the original layout, thereby eliminating the possibility of overstressing the concrete in local areas.
- The revised alignment requires cutting several penetration gusset plates (Figure 3) . The cuts in the gusset plates reduce the torsional strength
' and the vertical bending strength o2 the penetration assembly (sleeve, flange plates and gusset plates). To replace the torsional strength lost due to the cuts in the gusset plates, eight additional bearing plates were added as'shown in Figure 6. The additional bearing plates vera designed to fully replace the torsional resistance provided by the portion of'the original gusset plates shown as a shaded region in Figure
- 7. To replace the lost bending strength, the penetration sleeve will be extendec, a new flange plate will be added, and external gusset plates will be positioned between the new and original flange plates, as shown -
in figure 6. The new external gusset plates will restore the stiffness that was lost when the' original gussets were cut. e m
t . 4 - The embedment hooks on the following rebars adjacent to the relocated-tendon H13-037 were cut to facilitate its installation:
- 1) One vertical #18 on each side of penetration at 77 (Figure 4)
- 2) Two . vertical #11 on one side and three vertical s
#11 on the other side of penetration at 1030 (Figure 5)
- 3) One hogi: ental #11 on one side of penetration at 103 (Figure 5)
To restore the strength of the wall to its original level, the anchorage , lost due to cutting of these hooks will be replaced. By examining documents on chemical composition of these bars, it has been determined that the subject bars can be welded. For one #11 vertical bar, a standard hook will be velded to the cut rebar. Due to space limitation , the other cut vertical rebars will use plug welded anchor plates to develop equivalent embedments of standard hooks. These details are presented in Figure 8. The hook on the one hcricontal rebar which was cut will be restored by a bar equivalent to the original design. The anchor plates will be grouted to ensure proper bear d-~ *nrfaces. The following design documents have been revised ..orpo-
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- 1) INRYC0 drawings no. PS-lL2, Rev. 7 and PS-143, Rev. 6, Unic #1 tiall tendon locations
- 2) Bechtel drawing C-419, R ev. 2 - Liner plate
. requirement - Penetration details' sheet 5.
SAFETY IMPLICATION The relocated tendon sheathings provide a design equivalent to the
. original' design. Routing one of the tendon sheathings over the main steam penetrations, instead of under the penetrations as originally planned, has no effect on the strength of the contain=ent wall. Also, the_ strength losses due to cuts in the penetration gusset platss and the cutoffs of reba'rs, both necessitated by the rerouting of the tendon sheathings, have.been fully replaced by the modifications discussed -
above. Therefore, there is no adverse safety implications. REFERENCE
- 1) Bechtel Topical Report BC-TOP-5A, REv. 3
" Prestressed Concretc Nuclear Reactor Containment Structures" - Accepted by NRC.
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TABLE 1 MI!!DHDI TE iDO:1 FORCES USED IN DESIGN *
' Original Design Revised Design Tendon. Refersace Minimum Distance Minimum Distance
- No . Buttress- Effective from Ref. Effective fro: Ref.
- Tendon Buttress Tendon Buttress 2 Force (f t) Force (ft)
(kips) (kips) H13-036 1 1044 124.03 1097 133.37 H32-036 3 1050 146.61 1097 133.37 H13-037 1 1035 125.59 1045 124.78 H32-037 3 1029 156.37 1032 154.33 i nia-vao 1 Tess T.'.,7v3 .,0 - CC
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