Text

Vol I,Book 9,Part 7, Multimode Response Multiplier for Cable Tray Clamps
	ML20210F583
Person / Time
Site:	Comanche Peak
Issue date:	01/15/1987
From:	; TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	;
Shared Package
ML20210E291	List: ML20210E306; ML20210E461; ML20210E491; ML20210E522; ML20210E575; ML20210E599; ML20210E617; ML20210E626; ML20210E662; ML20210E681; ML20210E703; ML20210E726; ML20210E744; ML20210E765; ML20210E784; ML20210E801; ML20210E824; ML20210E854; ML20210F001; ML20210F016; ML20210F059; ML20210F247; ML20210F289; ML20210F304; ML20210F406; ML20210F431; ML20210F455; ML20210F469; ML20210F479; ML20210F484; ML20210F499; ML20210F529; ML20210F555; ML20210F570; ML20210F583; ML20210F594; ML20210F607; ML20210F616; ML20210F624; ML20210F642; ML20210F648; ML20210F659; ML20210F664; ML20210L516; ML20210N395; TXX-6242, Forwards Rev 1 to Ebasco Svcs,Inc & Impell Corp Evaluation & Resolution of Generic Technical Issues for Cable Tray Hangers. Rev Reflects Update of Approach to Resolving All Issues Re Cable Tray Hangers at Plant;
References
	NUDOCS 8702110113
	Download: ML20210F583 (42)
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i . VOLUME I - BOOK 9 (PART 7)

TEXAS UTILITIES GENERATING COMPANY COMANCHE PEAK UNIT NO. 2 TABLE OF CONTENTS i SUBJECT MULTIMODE RESPONSE MULTIPLIER FOR CABLE TRAY CLAMPS PAGE

1. Introduction 1

2. MRM for Clamp, i4odel 2 with Flex Boundary 4 2A. Transverse Clamps (Frames 3, 4 and 5) 5

28. Longitudinal Clamps (Frame 1) 22 i 3. Summary and Conclusion 30

. I ATTACHMENTS 1.* IMPELL's Clamp Strength Study (PI-06) dated July 15, 1986 (Draft)

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1T IS FouNO THAT ALL MRMS ARE NOTABL Y St/ALL , >vlTH THE LA NEST VALUE of ONL Y 0. 8/ .

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EBASCO SERYlCES INCORPORATED J P d4 on,c 5-5 'B6 sue, 23 a, gg ev cuo. av C Wu on,c 5-E-% ars ,,a; 3306.32/ ocQ 350 A

d(-)

cu t,,1 WApyTILITJ,E@ vvive.'uw. c .~ GENER c, .h viv.TING i 4 CO.

Pao;ter CARI F TRAY HANAFAR su,,ee, M 2 M GTuuY MoOEL ?

- ~L 35" .

~

101 ]O2 i ,

~lN II

%% @ at!! :a x z v

w toS 2g I

/0 UPPER TRAY JUPPOPT sc

~~

fo3 /o4 j J N t*

s ,

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=

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% 4

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@ 10 8 1 1 .

De i

/09 LONER -TRAY JUPPORT h

V FRAME 1 381/8-41

-m.,_ . _ _ _

E8ASCO SERVICES INCORPORATED cv 8 I. DATE 7!"30!8 $HEET 2d OF

(~ycwxo..y, d / oare 7NOOI on n

cuenT Tl-Id C O PT.OJECT suo,,c7 M R M dTUDY GUMMARY OF " 2 - D 20N6/ TUO/NAL CLAMP' idA D . ..

___. MODEL 2 BOL!NDARY : FL EXI. _ FRAME 1 ._ _ .

BlD6 GEISMic accel . LEVEL TRAY

E L Y 9. ~ EVENT 9, 82 $s .g) c rue

. _ f'. . . _ -. f, p3 -

s.Sd 1.99 .94 .63 .970 f. 24,9 .592

-oBE-

_,yy 1.54 .86 .60 315 .485 t.3 SS .IB9 gosyS' 184 2.24 f.35 63 1.222 7056 8SI

__33g___

l.94 124 .89 . 3t{ .6II l953 280 t.4 7 66 .3/ .63 926 2.o ? ? . / 95

_ . _ _ . . - _ _ . .og ,

_ A U X. _ l'd i '30 '22 3/5 '005 0'

73 '06?

__8/0.5'_ _43 5_. ^88 'IS 'N '63 ' E# E' b5

O

- J. 88 38 31 3/5 .592 0.sT9 .c98 7 -.._.- -

.ggg- IO ' IO 05 '63 holi & Ild *M AUX. I.21 .91 '62 3/5 .531' /.433

. / 9E

.__.8_9. .h_ '.. 33g .

2.11 2.07 t. /S .63 /.329 (, ;5 2,' 32 5 2.// I./4 .89 ,3jf ,64T ! f,7 pf' ,28o

_ogg-. 132 /.4 0 42 63 .832 4,4to .265 jlEC. I.37 .40 33 315 4 16 610 .tod 873.93 .. 33g --

1.27 !.48 70 .63 1. !!S 4.66 2 .441 I.77 '60 .49 3/S SS8 ' . 94.5 ' L /S4

t. So 2.23 t. o 9 .63 945 487 gg_ 2939 SFGD 1.50 1.00 64 .ais 0 73 ' i. 52r .102 896.5' -JJE3 2.o/ 2.45 t.45 .63 /.246 ~7. ' ! 7 .9 / 4 2.o I t.34 90 3/5 s633 2,14 2 .283

_- . BASED .ON 45'-0. TRAY WT ' '

I .-, .

c i ,

i ___1._.

THOSE A a EL. _".$" VA L UES WERE OBTAINEO FROM I VOLUMN 1

( ..

BOOK.- 9 L PART _ A ., PAGES llo. Ii0, . IN L O CAL . C00RDINATE O ~

S YS TEM. . _ _ . . . . - .. i '

- - . _ . _ _ _ . . _ . - . . . . . . . _ _ _ _ f ._ . 2 . - . ._ _ . . . . _ . . . . . . . . . . _ . _ ...._ r . . . . _ _ . .

- _ ___ ._.. . - ._ - __._ C T-_ E ^_ 2 ~ - ' 7 . _ . _ . .

'g l * ! .

, , . l 581/D-61 I, .

--- m ESASCO SERYlCES INCORPORATED

SNEET CF Uh DATE

'CY

DFS WO '

ar O. 9 O __

CMKD.EY ' DATE 7 ).

5"' 7 _ .. . v . . .. w., u_...,.

pr . .r t i i:

6:...,.,

m e

,, ,,, g e, s cr ' 't.'c. _

SUBJECT _

\ 9.r33.L.E IIffil !!ANGEMS' '

_ COMPUTER #dAf C L A14P CA PAC IT'1' VERIFICATioha 10: DR YlC CN ,

ffop5L :

Bou u_pI.i.t.y : FLEt 2 SLDG: /Af7 ELEV*fof.7[

C Y04. 7-B aok 9R )__ 'l j

i .

p yp,- EMD LOAD CA%

IDJ F, Pz Fs Mi W- % NTER fad. MRM !

7 D. 2 96 10So v.fff 0 776 -

VP 1 3 >o C. L17 0,17/ 11.o}0 0.25 OBE 2-P e47 4,>67 o.572 0 2.367 v.o?9 9 9t!

23.ffd /. so r ht:w I, I t 4 --

' S 9-9 i.4 ff i q.Jo 7 .o'3& 6,>g 4,4 st SSE o 3,qot >k.M 2-D 1. ut 7.os6 o.9tl u.53 0 o.Sof 0347.

3-0 p 470 t. x 30 0 137 4. 44 > oi3?

OBE 0 0,7sb r.4t! o~9*O l

7-9 o.4SC t.5tf o !S9 '

(O # # #' E #' 0' CSB o 3d 4 h! ! /.yf3 f rzf O /~ >l I 7.?I L f.. SSS '

7- 0 f-0739 0.!4/ 4,10 9 U SS? O'.$S l 0 48 0,7.8 50 0'343 0% O e.76 b4/8 Os700 7-9 Os4 W h %f[ o 'IEf

, j #' 0' 550 b* O # ' #'O *'N *' W 'N #' g,4 SSE

/,971 0 NPO o. / r>t 7 #tt A>#8~

2.-P ossif FP '

OBE 2-P .

M .;

SSE . .

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SSE 5- D i 7.-p

' * . . . . . . . ,

g.

EBASCO SERYlCES INCORPORATED gnggy 2d g7_ . 38 .

~

DATE DY s Orsato

+ ho 990__

DATE

~3I" CMKD.BY 4[. ) C LIE N T

~

PROJECT --

,,,,,c, N f!.iB.L.E IRAX .HAna.ss- .

computer RdN V E RI F I C A~r t ol4 C L A!4P C A PAC. lT'( .TD; DR Y/ C C&

aLos: A ux '

v,opeu : 2. O /" ( vn.J-poo/e 9E)

Bouup[gy: Fley ELEV: d/ v i[ '

] .... a .

??J:),E EUD LOAD CAW . . . .

MRM f, Fs Fs Hi Mt M5 NTER . FArf.

T p. N:ps ID:

i~ d * & 0'(J(F / 0*179 C. 95 kp o,641 1 3r / o'f/ f O'

o S.3ig 13&T 2-9 o~ 7d >.* 7 f o.t yj" o~7? /

04W or 43

/od H o'7 M tr d*o o /t 7 ~7' ?!4 0,6v 4 SSE /,f o y 9,4# AMol #'9~

2- D t. 't///. 2,343 o = >7 j d 1, o of o.>up o .I/

'r 9 o~nr s . 4 fI c. af o v.it y o,357 o to 05E 0 a >77 /. /7 2-0 o,463 o.a 73 o.o47 '

/ / o[' 0' O #' li 5'73" #3bY *'l b 7 #'W o.cz O #'O' CSe 7- 0 0.t it o.t19 o~ of8 o o'371 3 374 o.4W o ont 22 0 . t .3 54 .n 3 07 o.176 o.ar i sps j o,If a o,37' U(- OBE 7-9 e.4L3 0 413 0'o S f O ou13 /, 970 0, -3C]

,;of o,t7 s.ayo os or o o.07z 5#ff o' >7's- 0.1%

ggg 5-p or4W 2-9 o.k7p o4f7 o.of8 O o.39 i M 79 FP DBE 2-9 .

SSE 2-D DEE 2-D . . .

C5e "

q.9

-. 3@

@ OBE 7-9 sse 5' D 2-9

,7 -,__y -,._..._m-g~_ -. -

9 ,

7 9

EBASCO SERYJCES INCORPORATED sacev &.2 or 38 _

cv M/ _, o AT c o ,,,,, M o k. 2 2 1 ot Q. g g c>

c,mo..,S. P. A o,,c - > r- /(

P- cueur _ - ,

.m.

3 ,...,,c, ~

cr

. w .. mm ue.:l.i.

_... ...:.n. en .,.,- - -

N cgg InAy ju,st 33 SUEJECT

_ cogpdTER gyg, VE R I F IC/s rio kl C L AV. P CAF'AClTT fp:pgyj(cy HopkL : 2- SLDE .- Al27 __,Ew _*, * / ( Vd. 7 - Boon 9#)

BouiqNgy: FLW ELEV * #77 f _

i _ _ . , _ . , ,

. ',. ,L , ,

FPJ.u,- EMP LDAD CASE , ,,

Mt ' M6 14TER. FAtT. MRM F, 15 Fs Mi r p, tcpE I D.

3sho 0 2 if~ t f,132 /. o 3 ?. Oc 7d 0.88*1' o.23

't-p /s23o 3,870 DBE 6,174 0.588 c.coC 2.M 4 2Q694 2D 1.07]

/, e n tio/9 -.

/Ob H b y<>f ch 3: I o.3 ff st.2/3 f.a of- o.2 5 ~

4./53 6.520 0.72 $ o.obo 2.898 SSE 26.o82 2-0 1539 o,12-f 4.h V 0'.47{ O' 47b' O.332.

V9 0 4?] /. t y c; 0.35 l 05E .

1 433 0./95 s.sco ca8t S.733 0 955 2-9 0,539

f d* 7 v:M6 o.Yl}

0. d -3 7 ' "

/of gfg 3.-9 c.l '/ j.geD 7 0 174 .

0.88 o.28 o 0 000 j.iz / ),182 b202 7- D o.665 f.7 95

"' o,25 0.9SS OBE 2-0 0.S39 1433 0./95 c. coo e.7B/ 5.73 3 o.3/4

/0$ 0,410 o'/f / c.17? j.wol o.676 o. 4M -' o.2 d S5g b- 9 1. 2 o 2 0.000 1.12 1 7./82 f.7 75 0,280 2.-9 6.665 DBE 2-D .

SSE . ,

2- D DBE 2-D .

CSe ?# ..

- 1 7- D \

2-D 2.-P

EBASCO SERYJCES INCORPORATED 28

,, t/ k V f _ ,,,e b*N 5 -

" c t'

* ' * * ' '*' W %

er ' 30 -

n ~#

, j,. ,, s. P L ,,, e , -w- 94

(

N C LIE N T

~

PROJECT

,,,, c y N 9SRE IRAX J!ANGEMS

._COMFdTER #dN C L A14P CAPAC ITT V E R \ F I Cts-rio 4 IO DRY /CCN Hop 5L ; 2- BLD&: ELEC7~ ,

/

2 (Vol. 7 -Boot 9R) souwsgy: FLW ELEV #73 33

] _._.__; .

_i_ . .

TTJP,E EMD LoAO CAW ,_ _ _ _ _

Hi Mi % I4TER . rAcT. MRM T D. .F. Fz Ps I D. NC9E 0./7g o.6 F.[

2 ?Go c. /48 a.ilu o.lf9 O.24

%--D o.f >v OBE o 26f o.oco j.o.r8 t2640 2.14'l 2~P 0.832 4.4 iO -

0 7.31 a 72 6 l# /. 02 L ), o Jo C. L3 7 iC.M o.134 #' #' '

?r9 0.441 c.obo 1764 18.4'48 2.966 2- 9 1. l15 4.662 o,get o.233

'r 9 0 37/ o.7 tti o.ob 2.No a3of -

D. S 2 0.449 OSc 2-9 05/6. o.63o 0./04 c.oao C.4i6 2.S2 o

/

o.O 9D o. 4*g .$

o.Syy g

/o[- g$g 3 0 t xl /. o q f o.11 c,i 49.$ I

_ .-9

o. coo o.6/7 3.780 0.564 7-D d.55'8 o.94 5 o,/54

e. 3 o.ofo 2,.i90 o s3s f. 0 27) o.39 5S 0394 p utt 0.44i

(. OSE 0.63o c./04 0000 0.4/6 2.S2o 7-Q G.4 ff

/OS 04N o. s ' ) i.g?z o.453 0 344 c.13 4 _

g5g 5- 0 o.378

o. coo e.6/7 2.780 c.664 2-9 0.ss8 c.945 o./54_

FD OBE

- 2D .

e S SSE 4 2-P DEE 2-D ..

~

ESE .-

7- D OBE 2-D

h. '

SSE -

I-P i

sg...g 7, - - - - . . , _ + --p

EBASCO SERYJCES INCORPORATED

' s.< t e r 29 er. 38 or /M ._.,oave-ers w, Mos.2 21 org,. go __

c o. ev S k oave 7-[#~ 8E - _

i.

/^

5*' 1_ . re

. . mwc.. n n. wr c:r:..,..n u_....

u..

e no,,cv _ s .

puA[

SusJECT _ COM pu TER C L At4P CAPAC lTY VERlFICA riob4 7 D .' O R Y / C C N HopeL : 2- SLDS: S EG b .. E.'

/ ( Vt4.J- B#et 9#.)

souwp53y: FLW ELEV: d# (

' . .L .

ew amcm m:<e .. . . .

H, Ph. % NTER . r/4. K; epi J D. Fs F3 I D. N.76 - . F.

c, */ f o VO / /.1f $lof b .14 Q. >o.4tf o.fff p.7o y 0.687 o.o o o 2.74 7 27.3r8 4. [To 2-9 c.945 7.M 9 .

> ).3% f.aeo s. o o -/ /;o24 t-o d H /clof 4. 4 P/ o . .S W 30.8/0 4,8.t 7 2'D 1.16d 7.9!) 0 9/k p.o6o B 6.f4 o />d d?M O'CPf 0W 0.467 0. 4.T V9 0 3d7 f.f>y OBE .

c.* 0 2 c.c o o c.804 6.300 /. o.3 0 2-9 o.4 73 f.s75 '

M oo fl2. 1.e 7 L o , /D -h>7> o.Wi o.~/46 0. $~3f . '0. -3 8 ggB .

0,000 ' /. /34 8.K68 f.4 0 /

7- D Q633 2,142 0.183 0'&L 0,-3 /4

\

5"O 0470 /./6) o* /3 / f.M O.f// --

c. -3 l

/~'Y N-

\ WE 0.806 L '5 00 ' !. o 3 0 1-0 0.47.3 f.s7r o..n o z 0.000

,gp 0.569 v. -3 7 /

2rP 8 377 / >/r o. /# 7 d. 6 er/ o.7c/ o*7 g5g 2-9 0,633 2.14 L 0,283 c.000 1.13 4 8,76 8 t. 4.o /

~

FD OBE

- 2-D ,,

p :

SSE .

2- D OBE 7-P .

E5e

'2-D

/ W O g5g 2rP 2-0 2-p

~

__ j

EBASCO SERYlCES INCORPORATED SY -" /-t-c//.-d OATE )-3 -s6 SMEET M oF l 4

- m cuo. y S. P L o v. 7- t o- B4 o,s uo, BBo d. 62 / **Q 55o !

') cutor TEXAR imi mee cruen mun COMAr.'C"F 9T'[~iNiff **

on

^ AE L C . . . . . , ,s. , . . ., s SUBJECT

~

. _. 3. . .. sutdMA RY .. AND CON C LUSI0H. .-. . . - . . . _ . . _ . -

- AN Ex TENSIVE STUDY OF .A tdULTI-MODE . RES PbNS E

-. MULTIPLIER c M R M ) BASE ON CLA MP CAPACITY. . HAS BEEN

.. . PERECRMED . BASE ON THE PRE LIMi^ TAR Y C LAMP

S TRENG Til _

.. _. RE Su LTS AS PRovaPED BY 1MPE LL ( ATTA CHMEN.T _.2_ Q ._

. . - .I T_ IS -. F00ND--... THA T. ALL . MRMA. ARE. . N0 TABl.L Y .- -

A . . _ . _ . . _ . . _ _ . . _. _ . . . . _ _ _ _ _ . _ . _ _ _ _ _ _ . .

. .SMAll , WITH THE L.ARGEST VAluE O F ONL Y Q. 8 / . .-.-._ .

THEREFORE.,IT IS CONCLUDED . THA T . M 2M . 0F /.25

/3 . CONSE RVA TIVE . /N THE DES /GM VERiflCA T/0N

.-..--.uS ING . A . EQ u/ VA l&NT .GTA TIC . FORCE ME THOD. . . .._

THE BA S ES FOR M2M A TUD Y . IN Book.9 ....

OF _ NOL UME . .[, r/ElGHTED A VERA &E . Act ELERA TICAF ._ . _

.. IN PAR T.1 THROUGH 4 , MEMBER STRESSES /

ANCHORAGE FORCES AND n/ELDING . CA PA CIT Y .id PARTS 5 AND $> AND CLAMP CAPA CITY IN THIS. sTooY , cot /ER A WIDE RANGE OF 581/8-41

EBASCO SERVICES INCORPORATED or oATE suggy 3/ ,, 38

, cHuo.sv T.@ N oare 7 /3 0 N4 ors wo.33 M 2/ "$ w UO Jf.AAS UIILIIlds 6EiiERAIiiiG CO.

PaoJacT COM WCLIC PC M llN'T 7 s

sus;ccT CABLE TRAY HANGERS t

. . --- -~.. .-. ---. - - .-.-- g. . 2 . - . .

- . GTRUC TURAL RESPONSES UNDER. SEISMIC - EXCl TA ertoN .

.. THE EXHIBITIcN of coNSIS TENT BEHA wor. OF :

. MRMS IN VA R100.5 CR/ TERIA FURTHEe. SUBSTANTIATES. s~

THE VA UDI TY of M2M swoY. . ._ -

+ '. .._

s

. . .... - . - - . -.. . - _ . . - . - . - . - . . . - .....-.-..1. .L.k_...--....

b& e-w,

= . - # =m , - . --_. ,. ., ,,s

.e . 4 eaee , ---e-- - m- --e. .<= .-ein.

- . MMeonw . * -= m* m= *.e's ._e e, .,

a. - - -- .

E ,. -

wi.

h 4

m ~ p- , , ,

.- p - . .

. + e e%, ,%,

- e

- m- *e*-.

O

-.m.am..e--..-. -- -.- - , -.,+- = -,wn._ . wm -. , . 6-w. g.,_._,,,...,,,_. . , . . .,,, , , , ,,, ,,

. *= or .- - . ., ,e. .-,

. %, m .g

- -e e- -g> a w- y -

- e . - . .

. ., -- . . . . - . u

-e-s-. .a.m .a- ee.e p --. - . . . w w i.w v.,. ,.*g , .A ag

---e e e.-owgo, - .p.,e am -.W --

.--=.

,mee.e - ., n.- p-ou- .-- . y. ,i,e.,- , w_

. em. ,..

581/8 65

- .-._.% ,,,.--, . - -, ._- y _- - , - - . ._ y

__. . , , _ . 7--

EBASCO SERYlCES INCORPORATED u S P L onre ' - 2 8 ~ '26 s,,eer 32- or 38

~s eno.sv b onTe 7 * ' M ors wo U M U / So.' 82 ,

'(d cue,., , 7 u e c o paosect CPSES sus.ecr M .2 M G TOW

- .SUMMM Y' of M R 14 . .. VA L UE -- - . * . _ -

FRAME END. _ loa 6 MRM OF Bul. DING 1 D. N0DE CASE tar. 90s.7i AUX. 810.$ AUV. 899.5' ELECT 87135 SFGb 894.S' OBE o.25 '6.25 0.23 '

O. 2d o. 2 o

-/ o 6 -

~~ ~ ~

SSE o. 2 S o.27 o.2 S o.25 0.21 OBE o.39 oiso a3s o.Sh c.d s

.. .p ,g- SSE 4.56 o. S2 ~ c.34 o.d8 o.38 OBE 's.28 0.37' o.2 C o.39 o. B I

-; 0 8 - - .

'S S E o.26 0.58 c.2 6 a36 e. 21 OBE o.64 0.47 A7/ o.62 ria62

--304 ;z6 2

' ~

SSE 1 c.6 6 0.49 o.64 o.6 /

y OBE o S7 a 39 c.S8 o.59 L o.64

. - . 3 . - .. .. g 4 ,

7

\ _ _ __

S.SE o.63 a43 o.s9 o.60 ass' dBE o.61 0.4 I c.6 3 a&t o.68' .

-308 SJE o.68 046 o.63 a63 o.?o r.

08E' O.67 0.43 6.68 as9 e.7 7 404 o.46 0.65 A81 -

SSE 0 91 c.,4 a6/

oBE 0.65 038 a65 a)B s

4 4 07--

SSE o.72 c.45 o.66 o.63 o.)]

' ~

oBE d68 ado 070 e.62 a8/

-408 JSE ads 8 o.8 /

6 76 a47 a7l ,

a46%' o.56 OBE 0.52 0.35 c.so s

~ ~

A '; ad6 SSE o.55 0.59 a49 o.s / '?

OBE o.S4 0.32 aS3 o.d5 o.66 3 gg SSE o.6 l o39 o 53 ad8 a62 456 e.so b

(( ,g _ OBE SSE o.no 0.6 '? 6.4 3.

o.6o abo a S4 '

o.74 s 7o

g. m ie .e-.

O -

\

l so us-ei ,

~~1

"** b $3 of 38.

11?111

,_....L'~~~u,,

(o g PI 06 -

p yyg (g gg 7 T

The exception for transverse clamps occurs, for example, where a horizontal tray can apply vertical load to the transverse clamps in '

the upward direction only; in the downward direction-the tray is ~

reacted by the support member.

All moments (Mx, My , M2 ) are converted to force couples acting on the clamp pair. The resulting forces will be absolute

~

sumed with conventional clamp forces (Fx, yF , F2 ) as follows:

F'= F x

+ My + Hz x

w d F'= F + Mx (longitudinal clamp) -

y y

' W ..

F (transverse clamp) y F'

7 F

2 where w is the tray width and d is determined as shown in Figure 3.1 for various types of clamps. If the exact clamp type is O unknown, the following values will be assumed:

d General Clar.p Type Support Member Transverse C section, clamp on flange 1 -3/4" Transverse C section, clamp on web 1/2 d, + 7/8" Longitudinal C section, clamp on flange 1/2 b y

~

Longitudinal C section, clamp on web 1/2 d, 3.2 Determine Clamp Allowables The allowables for transverse clamp pairs is given in Table 3.1 for types A, C and G (including both 4" and 6" high types A and G). The allowables for longitudinal clamp pairs in three directions are given in Table 3.2. The load directions V, T, and L are taken to be the vertical, transverse and longitudinal directions as referenced to a horizontal tray. A longitudinal allowable for transverse clamps is not given since an explicit evaluation for that direction will not be performed.

C 1129a/7-15-86 g , , - -

e

r-r.~' : .e 777777 ( ., _. .. f. . . .- & =

da U M 6 36 t

?? 5 10 PI 06 If the clamp pair consists of dissimilar types, the lesser allowable of the two in each direction shalf be selected.

If the exact clamp type is unknown, the lower bound allow ~ ables for

' either transverse or longitudinal clamps shall be used (see Tables 1 and 2). ..

3.3 Load Comparison ,

The allowables are compared against the loads in each direction and are evaluated using the following linear interaction equations:

f uit

+

f uit 1.0 (transverse clamps) ,

f uit

+

f uit

+

f uit 1.0 (longitudinal clamps) where V, T, and L correspond to the tray local axis Y, Z, and-( X, respectively.-

3.4 Consider Edge Tear-out

. If longitudinal clamps are bolted to the flange of a supporting member, check the analysis loading f' edge tear-out.<f?

4

'Allowables are given in Table 3 torWx / 25 and c6 x 8.2 .

flanges having a 1/2" or 5/8" bolt.

If it is not known whether the longitudinal clamps are bolted or welded to the support flange, bolting will be assumed and edge tear-out will be checked. If the edge distance is unknown,1/8" + 1/2 (hole diameter) will be assumed.

i 3.5 R aluation c, If the clamps do not qualify, a reanalysis may be indicated in which the model is refined to predict more accurate load. One possible refinement would be to use 'best estimate' stiffnesses -

for the specific clamps that are identified or assumed in the analysis. Also, for transverse clamps, the stiffness in the 4e-

--all;d vertical direction might be better modeled as rigid if :

doing so eliminates any upward response, d 1129a/7-15-86

,-r ., . 7 --. , . . - --t.,. - , - ,-% , + , -.m - -%ew-

j

. r' '

' '. i

. 3s of as a, ( L .,:.c ,. /

l

. '----r j

~

a

i

e. 4 e.m 4

7 frp5&% CIM 1

~ ~ p - [! . . ,.-t i 7

.y.

/;

c m4 .

// '

0 e, r% s .pp-1 .

M ,-i"1

,'. tgpa,~1 elm (Up, dy i-

. ! m,-

N

%ppc 1 4

,&I p- J.

,_7

( '

y n.1 i y 'y Nf1 9 0

q -

o

u. } , >

'.d

-f.

f, L n ,,h L ~ d s k - p ~*,1 '

((' .2 ' 2'n, s gri g--

- Eg *A &

i ft ;gz ' $. h4N xO W. & 9 ~ " * * '

f e

4 l

l c

.. -t 7

?IIII? L .. . .

66 op 38

?? 8 10 PI 06 TABLE 3.1 TRANSVERSE CLAMP ALLOWABLES Load Direction Clamp Type

~

(ref. horizontal tray) Allowable Load (1bs)

Vertical 2500 i

A (4")

Transverse 3440

~

Vertical 1500 A (6")

i Transverse .- 3440 Vertical 410 *'

4 C (1/8" thick)

Transverse 2200

Vertical 2400 G (4")

Transverse 7200 Vertical 2407 G (6")

Transverse 7200 I -

Lower bound allowables 1 1 l

i d 1129a/7-15-86 P

, 7e-

* ~ * ' '

SJ op 3g

?????? -

g [. . . . . . -

?? 9 10 PI 06 TABLE 3.2 LONGITUDINAL CLAMP ALLOWABLES ___

i

.. Load Direction Clamp Type (ref. horizontal tray) Allowable Load (1bs) ;

i Vertical 19,000 B,E,K Transverse 10,000 Longitudinal 15,000 l

.- \

i J, H Vertical - 17,500 i Transverse 10,000 f Longitudinal 15,000 l l

l D, F Vertical 16,000 10,000 O_ Tra.nsverse 15,000

- Longitudinal P, R Vertical 8,300 Transverse 9,130 l i

Longitudinal 8,280

l 1

Yertical 6,890

N, Q Transverse 6,800

Longitudinal 9,720

l l

l

Lower bound allowables i

O 1129a/7-15-86 n .. . .. - - . . - . - . . .-... . . - -_

38 of 38

?????? l I

?? 10 10 1 PI 06 '

i I

TABLE 3.3 EDGE DISTANCE ALLOWABLE LOADS x 4

Notes: 1) For C4 x 7.25 and C6 x 8.2 with 1/2" or 5/8" bolts.

2) Bolt strength must also be checked.

3) Edge distance does not include radius of hole.

Edge Distance . Allowa'ble Load (1bs)

J (in.) f. .. Pair of Bolts 1

0 1750 2700 1/16 5080 1/8 11700 3/8

. ./

.., 7- r:e 7 ~~.~ i

/

{#M,((o - a i1. s i 6 5 - I 1129a/7-15-86

-}}

ML20210F583

Text

F (transverse clamp) y F'

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