ML20137M065
ML20137M065 | |
Person / Time | |
---|---|
Site: | Millstone |
Issue date: | 01/13/1986 |
From: | Gibralel S, Kitz G, Mahendranathan SARGENT & LUNDY, INC. |
To: | |
Shared Package | |
ML20137M058 | List: |
References | |
EMD-054460, EMD-054460-R00, EMD-54460, EMD-54460-R, NUDOCS 8601280178 | |
Download: ML20137M065 (27) | |
Text
{{#Wiki_filter:y.. -- w- } i- . .., SEISKIC I VALUATIO!; OF 1:014-SEISMIC CATEGORY I P!? ll;O II; SF.ISMIC CATEGORY'I DUILLINGS f
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, PREP ARED FOR' MILLSTONE tiUCLEAR POWER STATION - UNIT NO. 3 NORTHEAST UTILITIES SERVICES COMPANY Reper- 1; .: E.0-054460 Rev. 0: Date: 01-13-56 P:cjee: 50. 7450-00 1 A .c ,. .v._ __ n. ...: .s _ _ ..- . .... _e . ~ .; ..a..._...... . . 8601280178 860113 ,
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i TMiLC or CONTENTS PAGE
' Cover Page..... ................................... 1 Si 9 3aturc Page..................................... 2 Table of Contents.................................. 3 . l.0 D e. 05a............................................. .u . s' 2.0 Introduction....................................... 4 3.0 Evaluation Criteria................................ 5 4.0 Selection of Typical Subsystems........'............ 10 5.0 Wa1kdown........................................... *1 s.. -4.
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, o r e, - _ ., s r . r~oistom, , .0 0 . No. EMD-054460 Pege 4 ca.c.uo 1.0 FURPOSE This report summarizes the evaluation of Non-Seicmic-Category I piping and its supports in Sc.smic Category I buildings i n Millstone Nuclear Power Station Oni: 3. The evaluation ::itera, a sumn.ary of the analysis performed, the results of the evaluation, an6 :ne generic recommendations are presented in this report.
Tne scismic adequacy of Non-Seismic Category I piping, its standard piping support components and auxiliary steel for piping support are addressed in this report. The qualifi-cation of piping cupport concrete embedments, the baseplate for the embedments and the transfer of loadings to the main structure are performed by others, and therefore, are not covered by this report.
2.0 INTRODUCTION
It is required by NRC regulation that plants evaluate the in craction of non-safety and safety-related systems during normal operation, transients, and design basis accidents to assure that any interaction between such systems will no: result in exceeding :he acceptance criteria for any design basis event. The Mi'"
.. st:ne Unit 3 Seismic In:eraction progra was designed to address the above concern. Che 5eis=ic Interaction progra consis:s Of three distine: s u'Op r o g r ams .
i) Fe:f - walkdowns :0 identify swing / sway interaction between Non-Seismi: Ca:egcry : piping and equipment and Sci:::: 0 :egory piping and equipment. This progra-is based en maximum swing / sway Of 6 :nches and n: , s: ue: ural failure (fa* ling : turning over) Of Non-
. l Seismi Oategory piping and equipment in seismi:
Categ::y : buildings. l
;il De==ns :a:e :he adequacy Of equipmen: anch:: age of Non-Seismi: Oa:egory : equipmen: :n 5eis=ic Oategory :
Buildings. iii) Denens:: ate the strue: ural integrity of Non-Sais=ic Categ::y : piping in seismi: Categ::y : s:::::::es. 9 P 8 _ f.. , - D e
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Page.g ., 4 4 The evalcation documented in :ni reps:t was pe:Lormed to i catisfy the requirements of tne last sucprogra.. Tne neicmic ! c:ructural integrity of non-cciamic p; ping is demonstrated by.
- evaluating.a bounding cample of the acove piping for ceiomic and other applicable loads.
The evcluation criteria (Reference 11 developed for the
- evaluation has been accepted by the !;RO. The evaluation i' criteria is'summariy.ed in Section 3.0. Using the above criteria typical piping subsystemu were selected. A field walkdown wac per f ormed to ver if y pipe routing and support details. The selected piping subsyc
- cms and their supports 4
were evaluated in detail to demonstra:e stiuctural j integrity. The analysis performed and the results are summarized in Section 6. 0. Generic recommendations resulting from the evaluation and the conclusions are given in sections *
'7.0 and 8.0, respectively.
3.O E'v.nen . . .. . .. I O,.. - ,. R .1.e R . ..x The structurcl adecuacy of non-seismic Oc:cgery I piping and { its associated supports inc:alled in Category :: buildingc we:c revit.wed to assur e that the.v wil:. not fail and imPai: the ! capabili y of any saf c:y re'.c:ed sys:e: to perf ern its
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I event (E"I) . i i i Tnis was accompli.shed oy the detailed eva'.ca:icn Of several l . sucsvs: ens which are beundine. in :e':ms of size,
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. . _ v.. ! r . :9 . r A su#ficie..: .u: cer cf subsystems were selected to be a . .s . . . , . . .. a s s => ....... . s e . s...t.
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- c. Analyclo method-or der.ign guidelinen used
- d. Pipe temperature
- e. Location in the plant
- f. Pipe Material 9 Type of pipe connection (Welded , Thr eaded , etc.)
The sample wan weighted towards larger pipe size, highe: ceismic load areac and areac with more potential interactions with seicmic plant components. 3.2 ANALYS IS MI*T!!OD 1 9.1
. ;i. t. t h"u . . a* lm> t v. . T a.s .Each o:. .,:ne selec.teo piping suosystems were evaluated f or weight, thermal, and seismic loads a: applicabic. All piping analyses were perf0: ed using the PIP 5YS (Refe:cnce 2) and/c:
the A55Y5 (Reference 3) computer prograat.
- a. *'e a i ch t Leads
~he piping was evaluated fe: dead weight load due :: piping, insulatten, contents and
- n=en :sted masses, se:h.as valves, ::tps.
and s::tiners.
- . Tnerrai Loads Tne p;;ing was analyzed fe: the :a; expan-tien due :: the maxi =ur Ope:::in; :e:pera-
- e Of :ne line as :pe:! fit.d in :nc Syster Design. Tnt:::1 ::vemen: Of equip =en:
n:::le was :nsidered in'the analysis. "cid piping w :n maxist: Ope:a ing temperature
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less than 1500 7 end ne::le =ovements lecs
- then 1/5 in:h were ne: analyzed for therms
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(1) Inertja Load. i The piping was evaluated fer seismic 4 i ner tt a Acadt uc.,ng responce spectra methodr.. The damping valuer were
- based or. ASME Code Cace N-411.
Spect:n. amplification due to equip-ment or slab flexibility was also addressed in the response spectrum - analysis.
- (ii) Dispiccement Loado 3
1 The piping was also evaluated for l loads due to building relativo displacement. If the absolute values Of the building displacement at all cupport locatione duc to any given scismic excitation is less than a i sixteenth of ar. inch, then the dicplacement effecta due to that f J excita-icn were no: considered. i 4% e s .t o 2 4 -_.. 8. .. ..
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One way vertical res::ain:s were ' i reviewed f : upwn:d load. A' 1.
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Strapo was estima ted ucing plastic analyc is in accordance with the requirements of the
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., Re ference 9. The conclusion in Re f e re nc.e 9
, compare favorably wit'n Crinnell te nt te cu lt S.
3.3 LOAD COME! NATION i i The following load combina tions we re used to combine the i
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- Iguation 9D Earthquako Seismic ine r t ic load s and se ismic displacemen t ion.,c are com inet ustne- tne square root c
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The scism;c adequacy of all r.upporte including ctandard components were demonstrated by one of the folloJing:
- a. The ' cad on the support or cupport component it. ' bel ow the Serv.ce Level D load capability valuer provided b, the vendor.
- h. Supper: er suppor: component meets the requirc.'ents of AS.v.E 1983 Code, Section III, appendixaummer r :s Ac..cenoa allowable values.
All supports are adecu-:e for t'he normal-operating condition (Service Level A) loads o.a.c.eeia.a . .e. ..h e. - p.'p.i..,-
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Piping load s a t e:;u ip me n t no::le: we re reviewed for structural in tegr ity of the no::le. Equip me n t anchorage is evaluated oy others and is there f ore no t. : overed oy th it report.
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A set of 27 pip ing cub sy ste ms (24 pip ing modeln) were co lec ted by Nor theast Utili:icc using the sele: tion c:ite re given in Section 3.1. sa rg ent & Lundy has reviewed tne se le c te d ca mp le a nd f ound the to be bounding of Closc D piping in the Milletone Un it 3. The charac te r istics of the se lected piping sub sy cte m a re given in Table 1. (S ub sy s tems AX-107 X , AX -107 X -1, AX - 107 X -2 a n d AY-107 X-3 are :e fe r red to an AX-107 X in Table c 1 and 2 ) . Table 2 shows the Large Bore piping cupport d istr ibution as a f unc tion of pipe s iz e and cuppor t type for both the samp le and the ent ir e plan t. The abov e table shows that the ce lec ted sample conta in a bound in7 sa= pie of var ious su.cco:: :"pec . J and eic.e si:es, and is we 1 h9 :e d towa :6c :ne larc.e: p i.c e size.
"~n e sever it. ' of aar thquake r e spense in variouc build inc.s in n.. . 4. ,. , e .,,v . . . .. . . a . e .a. , 4 .v. . . . .e. . .~. . . e . . . c.. . . . . . .~ 1s . . . . . 1.e. .. . .. . . .
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.. .nr. . :. . . . . n. , , . . ..., . ; :-. :- . . . . . . . . . . . . .: .~. . : ~ e. . . e . .
- r. 4 ...
4 , t.a g.s 4.a..... w... g.n. , , e. e .,. . , a. V . :..;
.. e.. ... ... ..g..
7., . ~. 4..
~~.*e..- L ' . : .e us g . . - . .~ .
n .g.y. ..- . 4..... e. s. . .
,,*. ..g.. s. . g .- r y..: .e..~... .a. s .. . ..
77.. yg ,. .. 8
, . ='d . s k o. .. .b e .c. . .... . .= .-. ..: n = .'. e .e.:.- - . - . .. ' ~ . - ~. . . = . . ..' . w *. .- s .y. epa e.d. r.' .' .. . a.. o" .*. .' n .s' d .i . . .. . .> . .' . . e e . .= . 5 e .- *. ." 4....* .. pack ag es by sub syste m. The' sub sy ste: nu=ce: and the u -. = c : : e. s c. o n d i n : c. a < ac e d ccu=en: 'nu =c e r a r e : :ve n in Ta:le 4.
Addit ional in ic::a tion, where needed, wa s cb:ained and wa s
- e. . .. .. _. ., .. .. . : .,. . ..... . ... .. .. .. .. .. .. .. .. ..... .. .. . . . . ... . . . . . . .:....., .;
s n; . .3 . e
-- y . - . 2 .,.
g .. y+g y e-+ -
GARGENT & LUNDY {b. . e%cisetws Acc. No. EMD. 05 4 46 0 C " C '"e P ag e 11 0.0 A:: ALY SI .e Each of the selected 27 pip ing sub sy st e ms (24 piping mod e l s) and their supporto were analyzed in de ta i l. All relevant calcula tionc are documented in the cor re spond ing cub sy r.te m evaluation report. Table 4 listc the sub sys tem number and the corre spond ing ev aluation repor t document number'. S ub sy ste ms
; AX-107X-1, AX - 10 7 X -2, and AX - 10 7 X - 3 we r e b ra nc h p ip i ng from s ub sy ste r. AX -10 7 X. The above.-bree cuta sy ste ms we re inc lud ed in the AX-107 X p iping cub sy s tem mode l. Wnerever AX- 107 X iu re ferenced in the d is c u sc ion , it re fer s to subsy ste mc AX-107 X, AX-3 07X-1, AX-107X-2 and AX-107X-3.
C.1 PI PI t:0 STRESS A!; ALY SI S All piping bubsystems we r e mod eled iallowing Sa rg en t & J Lundy standa rd p ract ice as de fined in Re f e r e nce s 2, 5, and 6, . and we re ana ly:cd using the Sa rgent & Lundy FIPSYS piping analys is compu ter p r og ra m. Piping wa s analyz - ed for weigh t and thermal loads using the sta tic a na.3yc is op- ion. P ip ing sub sy ste ms we re analyzed for se ismic inertie loads using the Re spon se Spectrum Analysis option of P:PSYS. PVRC recommended damping values ( ASME Code Case h* ' 11) were used in the ana lys is. Eva luat ion for s a. .' s ~~ . ' a. .- . .' . #. .d . . : #. i .r -w .* .e r ."a a ..m a. .# u s .' .- *. h e. a ^ e. . ..a.. '.
.c.. g . .-l . 2..: a. y..... *, n . a . . . -. . . .
r-.;-.
.y..... . .: .g .".. ; .. p3v..e -.33, a.
- f. ..
( Re fe re nc e 2;. I I
.a . . .e.. .. .. g .e a y a. 4 .- a. g ,- n .. gw.8..
- o. .t y ... . . .- u..s . .fy.. .
.' g g .2 .: . . ; e. ye ... .
Combined oge:her and compared against a llo wab le s gee
;..a 4. .w. e y ., . ~. ., . 2 - ............. . . . .... . 4..., 4. .. 3,.. 4 ....3.a. . .. .. . . .e .... . . .. e. .e e e o.x. s.a.:. ., ' ..' .a w ., .. a. .e , ..s c.r.2.-
e .< r .: . . .. .. , u., e reev alu a ed f:: ne r z ia load s using the cuild ing a- ..... a...-,
*'t . .-...a. ...a.-
ili t ie s ( Re f e r e nc e 7 ' . !ne citine stre sse s we re, v r.o"..#a..#
'. av. Nc - ..*. . . s a .c . .-._.4.n. .a . t .,,, . 4 . . .e.. .' s _ _o L.a w 2..
4
.. .. . . . . ... ne.<e2 . . , . Al .-
sub syste ms excep: :w: me: 5e r v ic e "ev el 3 allowable .
..... .s. .... , = .-...;..e. .. . . . m. .w. a....m ... .u. sn ra. . . e . .e e x . s e .A t. .. :.
a llowa:1e s, AX-1 7 X and 51- 7A are dis:ussed in de ta il below. The~ peak stress each s ur sy s te r., the allowa:ie s:re ss and :ne subsyster chara::e r s-i s are su=ma r iz ed l n Ta:le 5. 1 ! ;- . 6.1.1 S ur sy s te - AX -1 ~ 7 X
. . ,.-...... - :=. . .... . . . .. .. ..... . =ra..: p: pin; sa:syste- AZ-;; 1-1, A>.-;~~X ~ and e * , , , e ,, _e,. e .D rd W 8 s=~ O'Ge - h *88'#4.- '# #'- "
S ARGENT & !. UNDY L*oistras Acc. no. E,v.D- 0 5 4 4 6 0 c.. .:ca Pag e ,2 4 AX -107 X-3. Ma in sub sy see m AX-107 x ir. 10 inch p ip e rou ted c ircumf erent ially around the c on ta inme n t. The th ree branch piping rub sy s te ms, . ar e 3 a nd 4 . inch b ra nche s coming from the header. The str e r,c calcula ted us ing e la st ic a na lys i s me th od - a : the follow i ng two ' locat ion r. in the bra nc h sub r.y nte ni AX-107 X-3 ex ceed allo wab le s. Comb ined bl 02 Stress (ns 1)_ Allowable - (os 1) Node De cc r ip t ion 835 We ld ing Te e .5 6.15 61700 45000 840A& Elbow .5 3.17 75000 45000 840B Node 835 is the tee connec tio~n to the by-paso line in AX-107X-3 and Nod e 8 4 0 is the first e lbow clo se to the anchor at the end o f AX -107 X- 3 . The b ra nch subsv. s tem is not f lex ib le in some directions and the re fore it was su sp ec ted tha: the higher s:ress a t . :he two oca tions a re cue to c.e flec tions i= posed by t.ne
.- o. ono. u- -. -.. . u.. 34 n . . v. .. K. .-. , ~1o, ,
t o i ... w.. he Co. . observed th a t the stress level c: the elbow wa s
,. a y- a. a. . o *.. , '. . . ^ . - a.. s a. .- c .' a e . i '.- '-.. 4 . . , e .. . . ". . a e lbow (Node E 40A and 5 403 ) . The ncmina'. str e ss g.. . b. e. s.a. e .t .e %: .-n .; ..s..:. ; .a g
mased on the above, .: wa s ccnc._uce: tna: a
- z. oc e o = r.w a; p .i a s...2 w4
...;. e .. .. ..*: . . .. ... e . .,.. 0. .. .. . - .a. ' i e v e ~.5. e . .. - a. s e. ,. .- .- " l a. ... . . . .d e .- .. v a. . .d e_ "2 ^ ' "a= .h. e a" -v - a -r * .. .=..#........>.' . s a. .: s ... 4 -. . . . . =. . . ' " .;= . . . = . -
- 2. ,. :. ~.. . .. .:. .; ..... . 2 ., ,.
, ...a,. . . . . , .. .... v .. e .4 .e .v. .. o w...2 ... .w.. . . . .w. . . g...., - u_ _s . . 3. .. ,. 4. .
- u. . w...
. ..3.. 9 2 .. .v . . w. . ,. , _s , . . .- . . e. ,. e. e. 3g .. . ; . . a ..
the elcow and a*.1 icea:icas ne a ' lo wac le s . The s..,..,. ---.
. . . . . . . . .a.._, .. s. ..:. . ... . , ... . w.; .v...ees. . . , . . :. .. 4. ... ; 3 .3.,..............: . . . n. c ,;..e .. g ... _. . . . . . .ne .u.. ..w e .. ....+, ._ _u .
o....>.. . . . .ea-a .. e .vc o...
. _ , s e .. .... .... . . . . . .;. . . .. -- ... 2,.,...n -. . . . .s.. .- ..w . . . . . - - ...e. - .. .,2 .. .,. . .. .. .4. . .4..... e . . . .
4 .,. .! i.. . .. a.
. .. b e. a. .. o. .J. . . = .
- a. 4 e.e..
=.**. , O. .
p.. .e ., .k. . 4 .e. e..6..
. .,g e. .'..,* 6.%. . . b.. J. y h. g e. .. e . . a. s s *. * * . a. . - . . . a g .- -s - -;
u.,
.. u.. a. .i .y o.,.e a .+.ea a ,.. . :;, -..f .nn. ,n. e ..-a, a .. . . . 2..,. . . . . . . . . . .4. ., . . . .
_..,I. W j g
.. M.. g... . ..h.6 .lh &. . g . .. . . .... . . ....g ..h g ...g*....#. . . .$.M...-. -
4.. .6
... --.m.
m.
..e..,. . .J .t. ... . A. e.a
- a. .t . **3
...=...C&.
ga. . .E.
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- a.
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O ,
--*a- . . . ., . . , ,
A. . SA RGENT & LUNDY esciscens A:c. No. EM D- 05 4 4 6 0 - t .c.ac p39e ;3 1 6 '.1. 2 Subs"cter r - 7A J Tn ic cub sy ste m ma in ly con s ir.t c of one inch and twb inch pipe. Pipe stres ce u at all locations are w it h in allowab le s ex cep t. at two cocket we ld ed Leec. The stres se e a t the - above location exceed allowable n by le st than 204. Tn t. ctret e.ec wer e receleu in ted using the actual c ize of the fillet we ld c: tne socket and - fou nd to .be w i th in allo wable s. 6.2 .PIPI!G DET'ECTIO" EVALUI.TIO!: . Dynamic deflection of piping in all sub r.y ctems were reviewed to judge the adequacy of s ix inen deflection envelope uced in the swag /sw ing in te rac t ion wa lk down .- The max imum de flect ion was gene rally small and is within the six inch deflec tion envelope, except for the s ub sy s tems AX-110V , SL-2A , . SL- 3 A and S L- 51. . The ab ov e rub syntems hav e localiz ed reg ions exceed ing the s ix inch ! t avelope du e to un ique r outing con figu rat ions.
- uenera.1y ; tne oe.a.lec tion s we re winn in s ix inche s and 1 there f or e it is judged tha : .the use of the deflection envelope of six. inches is ad eq u a te fo: the in:c rac tion '
wa lk do wn.
- c. . .,. . .... ..
c . c . ..e / . ..
.: . ..t.n ......m,.
en..
- c. . d. a. .. D It.,u,. S.. c 3. D rw. . e. c..w g., R, .s.
HANGER 5 Rev ie w of the P. ills:one Uni: 3 spectr a ind ica te una: the vertica; acceleration in the low f requency range (less th an : ~ E, ' is general;3 ::al; and is always less than -he a::e le :E- ic: due :: g rav i:y . ~herefore, it is impossible :: nav e ove:all upli f: Of :ne suo sy ste m.- P.c wev e r , it is poss icle :: nave loca li:ed upli f:ing c f pipe due : unique :cuting configura icn and suppo::
;cca: ions. A-gene:it s:u di was pe-formed :o dete: ine ne s ig..i fic anc e o f p e:e n- ic '. upli f t ing of p ip ing a : . rod ..a ng e r and s '.id in;' supp:: : 10:::icn .
Tne response spec::u analysis of all 27 subsystems we re reviewed and :ne dynami: upwa rd load was co= pared ag ain s: the vertical downwa:6 s a ti: ioad to identify rt : - - ' sub sy s tems w ith po te nt ia l c. ir ine.e u-lift.' 3ased en :ne aoove rev lew, sub sy s:e ms AX-;* 0V ,. AX-110Y-1 and EL-1A we:e se .a::ed :: :s ::;nf;;;.:f ..s su:sys: ens v;:n nega ve 1:ad s. e - - - ..-y- -3 - , , , , _ , ,-- , y- y . - - . <
4 SAR~ENT & L. UNDY rsniucra6 e-icace Acc. No. EM D- 05 4 4 6 0 P a g e a, . The above three z.ub sy ste ms we re r e ev a l ; a ted for se ismic - load using Seinmic Acce le ra t .on Time !!i story l.na lyn ic ~ op t ion of P I Pn* C . The revised sc iumic upwa rd ver:ical load wac compared against the down wa rd s ta t ic load at slid ing supporL and rod hanger loca t ion. Most of the supperen no longer had any negative loads. 110 wev e r , co me support loca tions - showed ne t neg a tive loads. The neg a t ive loadn wer e generally small when compa red to the I comb ined otal load or, the support. Tne re fore the 4 p ip ing i r. no t expec ted to upli f L significantly at tne suppor t. loca tions. The effect of this amall upli f t would be to increase the downward load ulightly due to bouncing of the pipe a t the .suppor t. ne re fore , the a f f ec ted suppor:s were re eva lua ted to e load thir ty-percent above the or19ina) values and fou nd to be adequate. Tne results of the evaluation show that the concerns rela ted to piping upli f t are not s ignificant. The minor upli f t ob se rv ed in the subsystems does not inc rea se the p;pe s:Tess in a ny c igni ., cen t manner.
; ,.. .. r.. m ., ,..A u . 0 ..v... w .o..-r In..G t....y Th. ...- . . , ,m. , . . . .v ,. . v.Jr . ,A,.
Cne of the sub sy ste ms ( 5:.- 5A ) in the sample conta ined Vic tau li: C oup ling s . A review of the design of thic
-y. .: ..;
s og
. . ., ...a ..... . ., g , . , . . r . . . . ; - .45 .:3 e X .a . e s. .A.. . ...g. . . ". e rubber 0: slas:Omer used as a seal wil". provide cignifi- . . . . . a. .,s . .a. .. .. ay.,_4. ......... .o,a4..
t i The =upling allows small movemen; in ::.e axial a4 . . . , > . . n....g
... . .z 4. ,. : .. z. .,,. .- . . . .
la te ra l (shear) f:::e in piping. :: :a s .e s a fini:e v alu e = f .:Cen: .'. depend ing - en the ecupling size and c on struct ion; to c au se angula-icn a t :he 0 0up ling . But once :he angula tion sta r:s, it can allow c . few degree s
. . . . . a. e .e . ., .. . . . e ,...4 .w . .. . 4 .,. .x .4 ...2 .e .
o.sea . .
- n. ...,,,u.,a.,
. , e.. . . . . . . .. : e. . a . . u. . . v...-....
4.....4.
.r. .e .2 ..;. .a.... .. , au .=. =. . ..a.=. =..'.;..- .= . . e .= a .a.= ... . '. . e p .' y ." .7 ;-
- O be ICe r :Ca. tha: Of a welded pipe. The increased daging WOuld tend :O reduce ;
s uppO r : loads and pipia.?
.:...31. . . .
4 .
. . . . . g .ga. y a , 4. . . .e A .4 .:
4.... a..*.*.*".*..'.. r'..,,. a. o . wg .a4v .,.......
... 3.w. .. gy 4. 3 - . . -3g 3, .r s.4 . . . 4. .. .. 4. .,., ..]$~~' . . ' -. ~
ear thquake using either the respense Spe rum Or the z ime 'h i S:O ry a n'. '.y s is me .hO d .
.' -l .:...~ .a. "_ - ~. - - ~' ~ -A,
{_
. . S A RGENT & LUNDY ,,g,s,,,, 3,.. . . .,. . . - ". .D- 0 5 , 4 6 v.
c .c, Pcge 15 Tne piping sub sy ste n. SL-5A wa s ev a lu a te c u c i r.g a h ounding a na lyn ic approach. Pirnt the piping s ub ey s te n, wa s ane.lyz ed with cli Vic:au) 2 e Coupling s modeled as
- inid. The analys 10 sho wed low stress levele a no the support load s we re ace ptable. Tne ana lysis recults were reviewed to ident i fy the loca lon - w itn the highest nominal bend ing stress (moment) due to car thquake. The c oup li ng loca t ior, c lo se s t to the no6e w i th the hignect nominal ocnding ctre ss wa c a ssumed to oc a^ hinge and the a nn lyc is repeated. The point w i th tne highest nominal ctreur was identified and tne p roc edu re r ep ea ted .
'inen the first few couplings were mod e led a c h i ng e c the support loads and piping s:.re cce s inc rea sed. However, as more couplingr wer e released the pipe c:resses and suppor t load s stabliz ed. Pipe ctresse s and support loads f rom _ all the above anslyzes were found to oe with in a llowable s, g .s e
s rPOR. :. m..
.,.J n. . .Oh.
The cc bined faulted cond it icn suppor t loads were compared agains: the Service *evel A leads on the hanger d ra wine. and it was icund : hat tne load ra tio wa s small w i th . c e: Deing less th a n 2 . 0 . -n sed on the evaluat ion
. . : .,. , : , , .4 y . . . :. - ' S a. - . .' .- . . , . , a .' .' s " r- eo .- . .=. w .' . .*. a ,.e, ..- z.. . . .... . ..v- y. . , .. . .. ey- e .a. . ag b .. ga e- .g .e .so .,4..... s. . . . . ....: . . a .e .i = . .=a...=....-. . . : . . , . .'. '. . . a . .i o s .:. . . . , . .. .. . ....,. w. . ... .. c . '...,
o a...d;s. ...:a.._.__..
. ."- . .- . s a.. : .e , . , . .e . . ., , ,2..... . - - . . .go. . .. .. .. ,. .. .. .. .. a . . ' = . .'... . . a .- a . 4.. . .' " A ed in the app lic ab le stress reports (see Table 4 ) . . .. . . . . . . . ........r.---.. .,...... . _ .......s .
c.. . 3..r. . - - . s. "c. -. =. . a. ". .' a. . a. .# --. --
. . s~.
a .' ' ' . .. . .es. *.'n
. . . . . . .ava . : . . . .n. :..,e.a .: .o .:.. . 2 e . : . a ......: . . ; . .v - ,
2 ,g.s-.. : sas.;.-
. . , - . . ... ex e ... ..--..t,. : .ne - - . . .,....sa . . . . r. . . . . - .. . .n- . ,..e , . . . e , .. a .-- u. ..,. .: ...,y......,_.2 e.:u ... ..
z
.. .,-..i.:. .; .: . ~ .... . . .. .e. ., c.- . wa..-=. .~ . ~ _ . '...' ' e e . " ~: .~. ... .. .: . ..2.. . . . .. . 4. ,. . . . . 4 . ...y.,... .. . . . . . . . . . .3, .: .a .<.. ,- .. e . . . . . . . .- .ta .' .' - .".' .'. e' u- ". v e .: o e .... . - , . . , . . . . ....: _2 ... .... ....:_. . . . . ...:..,.g,. .. 4 ,....,.2.,2 _ . . ..a.
the acove
.a ype of supper: be reviewed and :.cdified as . e.: . 4. .. . .. x . .s 2. . , u. . , ,o,4.. , .4.- , 4 e, , -_..4..- .on .. ; . . ,. .4 . l . -...,..e.. .. . . + . ~ * -________.___.__..__._._________.___.____.__..m-______.-______._.___.____._____._________._.____.z_____.
l -
;-* SARGcNT & LUNDY rsotNctRs Acc. No. L:o-0 54 4 60
- c. a a .u Pa ge 1 f,
~' O . OEt C F.: C RE COG'..! DA.TI ONS .
1 Some piping rubsyntemc had s1iding supports. The sliding supports rectrain the pipe in the downward vertical direction. -'h e piping is not fastened to the cupport by meanc. of clamp, ctrap or U-bolt. Theretcre, tne p:pe it free t>
- move i n thc latera' ho r i zo n t t.1 directiori. Lome of the
. cupporting memberc of the sliding support were not large enough to support the pipe during dynamic deflection.
It is recommended that all sliding cupports of the above type be reviewed for itc ability to accommodate the seismic movement of pipes at the support location. If no dynamic movement is available, a deflection envelope of six inches could be usec for the review. It is judged that the above review would show that the majority of supports are adequate with a few requiring hardware changes. 8 1 CON C'.US I O"5 Twenty seven piping subsyster.s that bound Class D piping design, and are located in areas with bounding seismic loads w ...e .e.. .. . ..a. . .y. . .a o..,.......e.. -.u.. m. ... .ovu. .- ..a.4c . .. . .a.. . ~,ns..a.eA. ..
.e..:e. . . . . . . .,..._....e. ...,.,.i. , ,: . - o ,,,e , .a.2,. .,.. s ,. .a g ... , -. .i e n - a.e. .
D .' c. a. .e. . .e .e .e. c .e
. w a. .- a. "d."..'.. . . :: .v.-- ~ ~ d. a. ,- s . . ..' - .. ..., -. s- , 'o s e .. . l' e- . .
E, 5 cm.a e r 195~, allowr.:;es a: ai*. loca:icns excep: those.
,. ;.e.. -m- . s s a.. ". . ' . . d e . a .' .* '. . a.. 5 a .- .. d a.. . ~ ..~ . - .*. . e .# . .- a.. a. s .e. . . d ...om e . . s . a. .i a, .3.. . i o ..e. a. y, a n. -a.. A .; . ;- -- . 4.. . . .. c . - o. .c. .e 3. . _* ~ . . ._i... e., we , g.i.* a .ec o ...A.. .o .,w ... .-- - e 7... .. ...a..;...: .=.w .. o. . . e . . : :.a . . .. E A
n i .* S..- yy.....e . . ..
. a, . . . a.a. . .. .ne._Cr, 2.... .. . .g .. - .a. e t. .' ".'. b .2. e .# ae . ...' z ****'.'***.*..".Ka..
n' .' s '.'. yy '"' o .*' ., S we*e .
. y .t .. ... a : .. .: . . .. . 4 . g w. .i . . 4. ..;. . . . . . .. n_. aX a.7"' . a..e .~.# *.. V. = i d- #- .**"y .e .77.... . . . . . . e g o
- a. S r a =. -. A . a.
. . . .s e .#"=....I.r==...*..* ;
Ag3-.m. a-..
. a. #s~
g ge s"p
- a. ..' aa.
[
,..s .m a. w*o m. . e.... 4 . C. o .~ ~ . . o. . 4. .,. . :. . ~... . e ,r j
j .*e. *a A . .S. -
. =. . ...m. g 3. a. ey g.p . . g. . . . . Jd..g J. . y.... . ..g **
- g 3 g *.==.4a
.a y-g ..y -..e- .
a- 3 . .= .=. " 7-. 7 - . .e. " a v a.
.. .e.".'.'.i.-'s...
a ...=- .. .,.' . .' . . ..h e .' . d.es.-.. 'y .
^ . - acecm.cdate increased loads, str~sses and dispiacements due to i
t . . a ,..n-- e .* .
..a a.. .e. m. . . ...- . *. . .... At. ....e .' = u.. . * * - e m, e . J D M. * % 3 . .. 'y . g -MM.- g 4 eg.re.. . . -w-- - u. w -. ~ , . - ,
.- - _ - -. . . . ~ /
- rl
- SARGENT & LUNDY l eac8: :as Acc. No. EMD- 05 s 4 6 C c-ic : . P ag e 17 9.0 R EF ERE';C ES
- 1. Sa rg en i. Lu ndy De cig n Cr ite r la DC -ME- 01 -::E Rev. 01
- Da ted 11-12-6 5 "De s ign Cr i ter ia for Ev. lust ion o f Se iomic Ca teg ory II Pip ing in Ca teg ory ^I he ild ing s "
Millatone Nuclear Powe r S ta t ion Unit 3
- 2. In teg ra ted Piping An s ly s is Syste m (PI PSYS; ' 3 6 rg en t and Lanry ' Pr og ram 12o. 09506SS1
- 3. ANSYS Eng inee r ing Analy sis S y cte n., Swa nson Ana ly sic Sy s tem Inc. Sargent and Lundy Prog ram No. 09518541
- 4. Sa rg en t I, Lundy Project In str uc tion PI-NE-03. "Pr o jec t j In s t r uct ion for Documen tat ion of Field and Verbal Input" j No r the a st Ut ili t ie s, Millstone Unit 3
- 5. Sargent a nd Lundy Eng ineer ing Mechanics Div is ion, "Le sson Plan for Training Per sonal in Pip ing Analy sis ",
EMD '"P-1, Rev. 5
- 6. S a rg en t and ~ Lundy Eng inee ring Mechanics Divis ion "Le sson Flan for T ra in inc. Per sonnel in Cod ine. P ic. inc. Sy s tems ",
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o 434.: _ii. s .o . R.E. F '.10 0'< dated Novemoer l', 1955 SEC-ills 7
" Ana ly sis Of S0n-Seistic ?iping Mi'istene Nuclear Power
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. S A R G E N'T & LUN DY /.0 0. No. EMD- 05 44 6 0 te ceNCLns n, EM1:aco p b, O * *
- TABLE 4 CU B Si' C'"EM E VA LUls"'IO " S UMv. A RY Accession No. of Access ion No. of
! :;b sy ste m Walkdown Pc0k aa e Stress Report A.X -110 X -1 D D- 05 47 5 L D:D- 05 5017 . X-SBA EMD- 05 4 7 53 EMD- 055 016 . .X -110 0 EMD- 0 5 47 5 2 DiD- 05 5 09 5 .X-110G DiD- 05 4 7 55 DiD- 05 50 22
- AX-110Y-1 D D- 0 5 47 5 6 DiD-055160
.: .X-110 5- A EMD-054757 EMD- 05 5 09 3 X-88A-1 D'D- 0 5 4 7 59 . DiD-055020 X-ESA-2 D'.D- 0 5 4 7 6 0 DID- 05 50 21 -J:-110V D D-0 5 47 5 4 D:D-055023 ...--w. .n. .u- 0 -> ,9 :o--
- e .o.
- D- 0 a. au. . , , c-A.X-107X-2 D:D-05 4 7 64 D:D-05 52 23
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r.Y. . *y '*a n* .r V..* _ w 9D
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8,: := , .,, w 9
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l q .
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C. ##. e
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l
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I' F I Gllitt: 1 t c.
O D Enclosure 2 Summary of Anchorage Reviews The anchorage details reviewed in this program consist of three types,
- 1. Surface Mounted Plates - Plates attached to the structure by Hilti bolts or Richmond inserts.
- 2. Embedded Plates - Plates installed at the time of concrete placement, which are anchored with Nelson studs.
- 3. Steel Attachments - Pipe supports which are attached directly to structural steel.
Surface Aiounted Plates All Hilti bolts have a minimum factor of safety of 2 on ultimate. Ultimate capacity is based on minimum values from plant-specific tests. Actual factors of safety are generally much higher than 2. With the exception of 2 plates this program showed a minimum factor of safety of 3 on ultimate for Hilti bolts. Richmond inserts all met the criteria for normal seismic Category I design. Embedded Plates All embedded plates with the exception of one, meet the requirements of NETM 41 which establishes the rule for normal seismic Category I design. The one plate which did not meet these requirements was evaluated using the rules of ACI 349-80, which treats SSE as an unfactored load case, and was found to have
~
sufficient capacity. Therefore embedded plates have been shown'to be capable of withstanding SSE loads imposed by non-seismically designed piping. Steel Attachments All attachments to structural steel have been reviewed considering local stiffening requirements and the ability of the steel to carry the imposed loads. The relative stiffness of piping and support steel was considered in these reviews to account for load redistribution to adjacent supports. All steel attachments were found to be acceptable. Special Case Subsystem AX107X was discussed in detail during an audit by the Staff at Sargent & Lundy on January 9,1986. This subsystem is one of four 10" chilled water lines in containment. Due to the unique routing of these pipes, one bounding problem was selected for analysis (AX107X). Sargent & Lundy . calculated very large anchor loads for the subsystem. As part of the seismic interaction walkdown program all of the 10" chilled water lines in containment were extensively modified to prevent interactions. Anchors for this system have been reviewed considering loads estimated from the as modified configuration and found to comply with acceptance criteria. It is expected that the anchors on AX107X in the unmodified configuration would pass if a detailed non-linear time history analysis were performed. However, since all piping represented by AX107X has been similarly modified this analysis is not warranted.}}