ML20203C053

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Forwards Sample Evaluations for Selected Cable Tray Supports Which Demonstrate Licensee Use of Limited Analytical Review, Per Resolution of USI A-46,in Response to Verbal Request
ML20203C053
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 02/02/1999
From: Sen G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR BVY-99-21, NUDOCS 9902110157
Download: ML20203C053 (26)
v • d • e


Text

. . - . -.--.-.- --- _- -. . . _ _ - - - .-

VERMONT YANKEE l

'y ' NUCLEAR POWER CORPORATION 185 Old Ferry Road, Brattleboro, VT 05301 7002 (802) 257-5271 February 2,1999 BVY 99-21  !

1 United States Nuclear Regulatory Commission ATTN: Document ControlDesk Washington, DC 20555

Reference:

(a) Letter, VYNPC to USNRC, " Vermont Yankee Summary Report for resolution of USl A-46," BVY 96 86, dated July 1,1998 Subjeet: Vermont Yankee Nuclear Power Station License No. DPR-28 (Doeket No. 50-271)

Request for Inform < tion Renardine Resolution of USI A-46 As a result of a verbal request from the NRC staff, we are providing the attached sample evaluations for selected cable tray supports which demonstrate our use of the limited analytical review performed in accordance with the GeneralImplementation Procedure (GIP).

l l

Should you have any questions concerning this submittal, please contact Mr. Jeffrey T Meyer at i (802) 258-4105. l I

Sincerely, l

VERMONT YANKEE NUCLEAR POWER CORPORATION

/jg Gautajii4en '

Licensing Manager  ;

Attachment cc USNRC Region 1 Administrator USNRC Resident Inspector-VYNPS USNRC Project Manager-VYNPS  ! i Vermont Department of Public Se vice 6095 )o 1

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9902110157 990202 i PDR ADOCK 05000271 1 P PDR _

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l Vermont Yankee USI-A46:

Sample Evaluations for Cable Tray Deadweight Supports .;

r SQUG GIP Limited Analytical Review l

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' This Attachment contains sample evaluations which demonstrate the use of the limited analytical review performed per Section 11.8 of the GIP. Enclosed are review Nos. 2,3,4,8, & 9 from the

" Electrical Raceway Review" Calculation. The review numbers are the same as those identified in l

Table 7-1 of the " Vermont Yankee Summary Report for Resolution of USI-A46", dated July 1,1996 l

(BVY 96-86).

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. Vermont Ycnkee U:1 A46: Sansple Ev luations for Cable Tray Deadweight Cupports  !

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- REVIEW NUMBER 2: RB 280 SE 2

-_ CHECK DEAD LOAD:

7" e 16"]

4 Elev. 303*-6" span := 7.67 ft

, ,, w uA M

W := wt_18_66 span 78" o

W = 142.4 lb 12" w M := 2.W-(12.125 in) l

' 12-1/8" M = 3452.6 Ib in J

S A = 1.110 in'

- Check Vertical P1001: x = 0.572 in'

, := -

M o = 6.0 ksi < F b.= 25.0 ksi } MernberOK l Sx (Ref. 6.2, pg.8)

- Check 1/2" Unistrut Spring Nuts and Bolts

<F pullout := 7000.1 } Sprina nuts OK i

M Pullout := 2 W+_ Pullout = 9922*lb bolt 2 bolt arm

- Check Horizontal P1000 along ceiling:

s x_p3ooo := 0203 in' 2W Bending _ moment := 12.W.7.in - MI M 9 n n Bending _ moment = 1459.3 ib in 1

p'a 7" 16" af Page 5 CBLETRAY.MCD l

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. Vermont Ycnkee USI-A46: Sample Ev:luations for Cable Tray Deadweight Supports SQUG CIP Limited Analytical Reviews P ge 4 of if REQlEW ML '.

o :=

B'N m ment a = 7.2 ksi <F b = 25.0 ksi } MemberOK S x,_P1000

- Check 1/2"shellanchors:

I

  • Bending _ moment '

t 16in I t= 376.0 lb

- Determine Allowable Load: - Anchor bolts are Phillips Red Heads

- Assume anchor bolts are adequately installed

- Cons. assume concrete strength = fc := 3000 psi PerTable C.2-1 of the GlP,1/2" expansion anchors have an allowable pullout load = Ft := 2290 lb and an allowable shearload = Fy := 2380 lb . -

Per Section C.2.7 of the GIP, the following capacity reduction factors must be used for fc = 3000 # .

RF f* RF = 0.75 RF i

+ 0.65 RF y = 0.95 P := 4000 psi P y:= tooog. psi Revised allowable loads:

F t:= F tRF F t = 1717.5 lb Fy := FyRF y Fy = 2261.0 lb } Bolts OK p

t = 0.22 < 1.0 Intarsetion Ratio.

Ft Support members and connections are OK for 1 x Dead Load 4

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CM.ETRAY.MCD Page 6

. ' Vermont Ycnkee UZI-A46: Sample Evaluations for Cable Tray Deadweight Suppods SQUG CIP Limited Analytical Reviews Paga F of 26

  • RO/IEW % 1

- CHECK VERTICAL CAPACITY: Per Figure 84 of the GlP the next check is a 3 x Dead Load check of the primary co'mections and the anchorage. This will be done by multiplying the previous checks by a factor of 3.

- Check connection at top:

2W + M Pullout = 2976.7 Ib Pullout := 3 (2 bolt armj The Unistrut spring nuts have an allowable load = F pullout = 2000.0 lb using a factor of safety = 3. This results in an ultimate load of F ultimate := 3-F pullout F ultimate = 6000.0 lb Factor of Scieb/ against ultimate load = FS ultimate Pullout FS ultimate = 2.02 This factor of safety against ultimate load is judged to be adequate because as the members displace under loading the puilout load will become more of a shear load and the second bolt will come more effective.

- Check 1/2" shell anchors:

f t:= 3 -" **"I +2W\

j I t= 1127.9 lb

( 16 in Interaction Ratio: b = 0.66 < 1.0 } Bolts OK Ft Support members and connections are OK for 3 x Dead Load

- The support is classified as ductile.

- The support is not a fixed-end rod hanger.

CONCLUSION: The support is seismically adequate per the analytical review guidelines of Section 8 of the GIP.

' I Page 7 C8LETRAY.WCD

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Vermont Ycnkee USI A46: Sample Evaluations for Cable Tray Deadweight Supports SQUG CIP Limited Analytical Reviews Page 7 of 46 AN

- REVIEW NUMBER 3: RB 280g1

- CHECK DEAD LOAD:

span := 7. A I W 1.---

oW3 W q = 107.1 Ib

[W4 W j := 3-(C 2_ inch) span

WS W2 := span- C2 inch + C3- inch

+ C 4 inch #/,

+ 10 lbi' I

W6 W2 = 310.8 lb W3 := span.(C 1 .5_ inch + C 2_1nch) W 3 = 60.9 lb W4 := span C 1_ inch W4 = 15.4 lb ,

W 5 := (18_25 + 10 b span .

l W 5 = 1192 lb i ft > Fireproofing = 10 lb#t for W 5 and W 6

/ i W 6 := i (18_50 + 10.lb l span + 5C 1_ inch + l 0 f Ibi ' span )

W6 = 378.6 lb 1

i Al iC .75 inch + +

/ R _  !

+ 3 A-(7 C1 .5_ inch) + -(3 A 6 C 1_ inch)

- The horizontal P1001 members are adequate oy comparison to Review #1.

- Vertical P1001 stmt is judged to be adequate. I i

CBLETRAY.MCO Page8 i

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. Vermont Ycnkee U21 A46: Sample Evaluations for Cable Tray Deadweigil t Cupports SQUG CIP Limited Analytical Reviews Pcg3 b cf 16 b l6343

- CHECK ANCHORAGE Wj+W2+ W3+W4+W5+W6 +

punout := f 2M 4 bN 7e) pullout = 496.0 -lb <F punout = 2000.0 lb

  • } Bolts OK o'

-The embedded strut has an allet.:t:!s pullout load = F embed _ pullout := 2M -

pullout = 496.0- <F embed _pallout = 2000.0 I-

} Embed strut OK l

Support members and connechons are OK for 1 x Dead Load

- CHECK VERTICAL CAPACITY: Per Figure 8-6 of the GIP the next check is a 3 x Dead Load check of the primary connections and the anchorage. This will be done by multiplying the previous checks by a factor of 3.

pullout := 3-pullout pullout = 1488.1 lb <F pullout = 2000.0 lb } Sprina nuts OK Totalweight = 3 (W q + W2+W3+W 4+W 5 + W6) = 2976 lb

- Check Embed: The allowable capacity of 2,000 lb / ft of embed is derived using a  !

Factor of Safety = 3 against the tested minimum ultimate strength. Titis F.S. car. l be reduced to 1.5 for seismic loading to be consistent with the GIP and EPRI guidelines.

Reference Attachment A.

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F embed _ pullout seismic := Fembed_pulloutg 2976lb <F embed _ pullout _ seismic = 4000 Ib } Embed Strut OK M 1W F embed _ pullout _ seismic-(1.5)

  • 4) Y hY FS ultimate := FS ultimate = 2.02 ,

2976- g:

Support members and connechons am OK for 3 x Dead Load

- The support is classified as ductile.

- The support is not a fixed-end rod hanger.

CONCLUSION: The support is seismically adequate per the analytical review guidelines of Section 8 of the GIP.

CBtITRAYJAc0 Page 9

" Vermont Ycnkee USI-A46: Sample Ev:luations for Cable Tray Deadweight Cupports SQUG GIP Limited Analytical Reviews Page Cl of_17__

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- REVIEW NUMBER 4: RB 280 NE 1

- CHECK DEAD LOAD:

1 18" "

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Assumeiight l W1e rmture e W2 ,

e W3 -

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e W5 4 l

W q := (2)-(7 A)-(C 0.75_ inch) + W light W j = 34.6 lb span := 11. A W2 := wt 18_25 span W2 = 77.3 Ib W3 := W2 W4 := W2 W5 d 18_50 span

- W 5 = 154.7 Ib

- The horizontal P1001 members are judged to be seismically adequate by comparison to Review #1. ,

1

- Vertical P1001 member is adequate by engineering judgement.

CBLETRAY.MCD Page 10 4

~ . _ _ _ _ . - . _ . . . _. . _ _ . _ . _.- ._..__._._.__._ _ _

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Vermont Ycnkee USI A46: Sample Evaluations for Cable Tray Deadweight Cupports SQUG CIP Limitrid Analytical Reviews PCee \l of 15' l 3

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' Review 44  ;

- CHECK ANCHORAGE ,

The support is secured to the ceiling by (2) Unistrut spring nuts in an embedded strut. .

Totaldeadweight= W j + W2+W3+W 4+W 5 = 421.3 ib Load is acceptable by comparison to Review #3. .t t

Support members and connections are OK for 1 x Dead Load i

Per Figure 8-6 of the GIP the next check is a 3 x Dead

- CHECK VERTICAL CAPACITY: e Load check of the primary connections and the anchorage. This will be done by multiplying thej previous checks by a factor of 3. i

- Check connection at top:

P = 1264.0 lb P := 3-(W j + W 2+W 3+W 4+W) 5 i

Load is acceptable by comparison to Review #3. i l

Suer +-1 members and contes are OK for 3 x Dead Load  :

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- Because of the brace the support may not respond in a ductde manner. Therefore it muri be 1 subjected to a lateral load check in accuide6cs with Section 8.3.4 of the GIP. l

- The lateral load check consists of subjectng the' support to a loading of 1 x dead load plus a transverse acceleration = 2.5 x floor ZPA where the raceway system is attached.

For Elevation 303' of the Resctor Building find the floor OBE E-W = ZPAOBE := 0.13 g .

ZPA SSE = 0.26 g ZPASSE
= 2 ZPAOBE acc = 0.65 g acc.:: 2.5 ZPA SSE i- l i

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. Vermont Yankee USI A48: Sample Evaluations for Cable Tray Deadweight Cupports SQUG ClP Limited Analytical Reviews Pzgo 12. of 18_

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Wi P q := W4 acc P q = 22.5 lbf l P 2 := W2 ace P 2 = 50.3 lbf f i

If e P 3;* W3acc P 3 = 50.3 lbf P 4 := W4 acc P 4 = 50.3 lbf P 5 := W5 ace P 5 = 100.5 Ibf 18" ,

6 6 W := (W j + W2+W 3+W4 + W S)*1*9 P h w . 421.3 ibf h)M P := P 1+P 2+P 3+P 4+P S

" P = 273.9 lbf f M := P g-((120.- 18) in) + 2P -((126 - 18) in) +3P -((138 - 18) in) +4P -((150 18) in) .

+ P5-((162 - 18) in)

M = 348712 lbfin 18 4 pullout _A = 2632.5 Ibf pullout _A := W + + ,

18,n s 18in P.18 in ullout_8 = 2211.1 Ibf pullout _B := +

18 ,in 18in shear _A 2:= E shear _A = 136.9 lbf ,

shcar_B := shear _B = 136.9 lbf Page 12 CBLETRAY.MCD

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Vermont SQUG GlPYcnkee USI-A46: Sample Evaluations for C:ble P geTray (3 Deadweight 3upp i Limited Analytical Reviews ed l-s - ,

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-CheckWeld at C: Area of weld for a P1000 = AweM_P1000 := 31.625 in 2 2 pullout _B + shear _B 54.4 IDI gres , f*= in A weld _P1000 Allowable load = F w seismic = 3213.0 $ } Weld OK

_ in

- Check Bolts at C 2 2

.C compression := pullout _B + shear _B C compression = 2215.4 lbf Sup capacity = 2 F slip _alc.ag = 3000.0 Ib and pullout capacity = 2 F pullout = 4000.0 lb

- Bolts are adequate.

- Check connection at A-

-. - Check Weld at A:

~ ~

f res = 405.5 +h f res: Awegd m

. Allowable load = Fw seismicin= 3213.0 $ } Weld OK

- Check Bolts at A-pullout _A = 2632.5 lbf < Pullout capacity = 2 F pullout = 4000.0 lb } Bolts OK shear _A = 136.9 Ibf < slip along capacity = 2 F slip _along = 3000.0 lb } Bolts OK

- Check Embedded Strut pullout _A = 2632.5 lbf< pullout capacity = F embed. pullout _ft seismic = 4000.0 $ } Embed

- Connection at B is OK by comparison to connection at A.

Support members and connections are OK for Lateral Load Check l - The support is not a fixed-end rod hanger.

I CONCLUSION: The support is seismically adequate per the analytical review guidelines of Section 8 of the GIP.

Page 13

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- REVIEW NUMBER 8: RB 252 SW 1

- CHECK DEAD LOAD:

span := 6.33 ft l 24"

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=id-ii29 W j := spant_24_25 W j = 59.3 lb W2 := span wt_24_50 W2 = 118.71b W 3 := W2 W4 := W2

.W 5 := spant_24_100 W 5 = 237.4 lb W 6 := W5 W7 := W2 W 8 := 8.33 ft-(wt_24_100) W 8 = 312.4 Ib W g := (span wt_24_50) + (3 ft wt_24_100) W g = 2312 Ib W jo := W2 W qq := 2-(span).(M_24_50) W qq = 237.4 lb COLITRAY.MCD Page 22

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Vermont Ycnkae U21446: Sample Evaluation 3 for Cable Tray Deadweight Supports SQUG CIP Limited Analytical Reviews Page Ib of if i

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- Horizontal P1001 struts supporting the trays are enveloped by Reviews 1 - 7. Review #1 has a load of 375 lb.

- CHECK ANCHORAGE The support is secured to the ceiling by (2) Unistrut spring nuts in an embedded strut. ,

Total dead weight = Wt := W g + W 2-W 4 3+W4+W S+W6+W 7+W 8+Wg.

+W 10 + W 11 l

- Check Weld, Strut to Plate  ;

f I res = 294'"h < Fw normat = 1890.0 res ; A weld I" $ } Weld OK

-Check Spring Nuts

  1. } Sprina nuts OK pullout := pullout = 954.2 A < F pullout = 2000.0 lb 2 bolt bolt l

-Check Embedded Strut pullout;= Wt pullout = 1908.5- < F embed. pullout = 2000.0 D } Embed strut OK l

Support members and connections are adeauste for 1 x Dead Load l 1

- CHECKVERTICAL CAPACITY: Per Figure 8-6 of the GIP the next check is a 3 x Dead Load check of the primary connections and the anchorage. This will be done by multiplying the previous checks by a factorof 3.

-Check Spring Nuts pullout := . t 2 bolt pullout = 2862.7 - > F pullout = 2000.0 Ib } Sprino nuts are not Adequate CBLETRAY.MCO Page 23 l

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-Check Embedded Strut '

pullout := 3 Wt pullout = 5725.4 A > F embed _ pullout _ seismic = 4000.08 Embed

} strut not Adeauste bolt ft Support members and connections are not adequate for 3 x Dead Load

- Because of the brace the support may not respond in a ductile manner. Therefore it must be l

subjected to a lateralload check in accordance with Secticn 8.3.4 of the GlP.

- The lateral load check consists of subjecting the support to a loading of 1 x dead load plus a transverse acceleration = 2.5 x floor ZPA where the raceway system is attached.

For Elevation 280' of the Reactor Building find the floor OBE E-W = ZPAOBE := 0.10 g . j 1

ZPA SSE := 2 ZPAOBE ZPASSE = 020 g l

ace := 2.5 ZPASSE acc = 0.50 g I

P q := W4 acc P q = 29.7 lbf P 2 := W2 acc P 2 = 59.3 lbf l

P 3 := W 3. ace P 3 = 59.3 ibf P 4 := W4 acc P 4 = 59.3 lbf 1

P 5 := W5 ace P 5 = 118.7 lbf P 6 := W6 acc P 6 = 118.7 lbf P 7 := W7 acc P 7 = 59.3 lbf P 8 := W8 acc P 8 = 1562 lbf P g := W g ace P g = 115.6 lbf P 10 := W 10. ace P 10 = 59.3 lbf P 99 := W gg acc I gg = 118.7 lbf P := P q + P 2+P 3+P 4+P S+P 6+P 7+P 8 + P g + P jo + P jj P = 954.2 lbf CBLETRAY.MCo Page 24

.4

Vermont Ycnkee USI-A46: Sample Evaluations for Cable Tray Deadweight Supports ,

SQUG CIP Limited Analytical Reviews Page la of 1F

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Eaview 448 )

M := P g-(57 in - 18 in) + P 2 (66 in - 18 in) + P3-(75 in - 18 in) + P4-(117 in - 18 in)

+ P 5-(129 in - 18 in) + P 6-(141 in - 18 in) + P7-(153 in - 18 in) + P 8-(165 in - 18 in) {

+ P g-(141 in - 18 in) + P 10-(153 in - 18 in) + P q1-(165 in - 18 in)

M = 111683.7 Ibfin

- Check Anchorage P 18 in + M g ,$,g  ;

pullout := pullout = 3638.8 5 2 bolt bolt <

l Spring Nuts and embed are not adequate for the lateral load. l I

CONCLUSION: The support is n2t seismically adequate per the guidelines of the GIP.

i l

COLETRAYMCD Page 25

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, Vermont Yankee USI-A46: Sample Eyc.luations for Ccble Tray Deadweight Cupports SQUG CIP Limited Analytical Reviews P ge 2.0 of SS

    • ) f f

- REVIEW NUMBER 9: SWGR ROOM

- CHECK DEAD LOAD:

13-1/2"[

[ 2-1/2" Y Y hbbh 10" Wie o W2

W3
W4 " -

W j := 5.75 A-((4 C 4_ inch) + C 3_ inch) W q = 453.1 lb W2 := 4.5. A-(2)-(C 1 .5_ inch) W2 = 32.4 lb W3 := 7.5 A.(wt_18_100) W 3 = 210.9 lb W4 := 6.75 A.(wt_12_100) + (2.5 A)-(31 .C5_ inch + 2 C 2_ inch) . W4 = 201.9 lb

+ 6.A 3.8- (p100j)

COLETRAY.MCO Page 26

-. . - = - . .. _ -- - - . - _ _ . -. _ . .

Vermont Ycnkee USI-A46: Sample Evaluations for Cable Tray Deadweig Supports SQUG CIP Limited Analytical Reviews Page 1 of25

~'

1 C /

S CW \\ %= Y

- Check licit 06tal P1001 Supporting W 1:

1 P1 P2 P2 P2 P2 ,

)

U U 1r U U P j := 5.75 ft (C 3_ inch) P q = 73.6 Ib 6" p 2 := 5.75 ft.(C 4_ inch) P 2 = 94.9 lb 11" 16" M := Pg 30 in + P 2-(21 + 16 + 11 + 6) in 21" M = 7331.3 Ib in 30" i 1

o := E o = 12.8 ksi < F b = 25.0 ksi } MemberOK Sx l

- Check Welding of Strut to Plate:

IPj+4P 2 I f M 32 fres;* I res = 2083 I" lb I + .

3( Aweld j (S weldj fres = 2083- > F w normal = 1890.0-I res 10% overstress judged adequate due to

= 1.10 conservatism in assuming all conduits to  ;

p W nonnal i

I -

be full. l r  !

, l 3

I i

+

E i CBLETRAY.MCD Page 27

Vermont Ycnkee USI-A46: Sample Evaluations for Cable Tray Deadweight Cupposis SQUG CIP Limited Analytical Reviews Pcge 1S of 'l5

  • J  % /

k@l t=. W M -

- CHECK ANCHORAGE The support is secured to the ceiling by (2) 1/2" Phillips Red Head anchor bolts.

- Check P1000 Strut S P1000 := 0.203.d P P := W g i W 2+W 3+W 4 V v P = 898.3 Ib v

a := 2.5 in b := 13.5.in 13-1/2" 2-1/2 g ., P.a.b M - 1894.9 ib.in a+b M

o = 9.3 ksi < F b = 25.0 ksi } MemberOK o :=

I S P1000

- Check Anchor Bolts: From Review # 2 find a 1/2" Phillips Red Head anchor bolt has an allowable pulloutload = F t= 1717.5 lb .

pullout := P l 3.5} pullout = 757.9 A < F 1 = 1717.5 Ib } Anchor Bolts OK

( 16 / bolt Support members and connections are adeauste for 1 x Dead Load j l

l Page 28 CBLETRAY.MCD

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l- '

Vermont Yankee U :-A46: Sample Evaluations for Cable Tray Deadweight Supports SQUG CIP Limited Analytical Reviews P;;ge 13 of16 l

l

>  % /

M.@/IEWM l

l 1

l

- CHECK VERTICAL CAPACITY: Per Figure 8-6 of the GlP the next check is a 3 x Dead  !

Load check of the primary connections and the anchorage. This will be done by multiplying the previous checks by a factor of 3.

- Check Welding of Strut to Plate:

l M := P g 30 in + P2-(21 + 16 + 11 + 6) in M = 7331.3 Ib in

, \

(Pq+4PI 2 /M 1 2 fres := 3- +l l f res = 6250 lb  !

3i A weld / S

( weld) in I f res = 6250 h > F w seismic = 3213.0} Weld $ is Not Adeauste  !

in -

in

- CHECK ANCHORAGE I _, - Check Weld of Vertical P1001 to P1000: l I

f P \

f res = 415 Ib f res := 3 i I" (A weldj i

f res = 415 h < F w seismic = 3213.0 $

} Weldis OK in in l

l -Check Anchor Bolts  !

l 13.5 puliout = 2273.8 A > F =t 1717.5 lb pullout := 3-P j } Anchor Bolts are not

( 16 j bolt i Adeauste l

Support members and connections are not adeauate for 3 x Dead Load l

j CBLETRAY.fACD Page 29 l

! l l.

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. Vermont Ycnkee U21 A46: Sample Evnluations for Cable Tray Deadweight Supports 7A of f5i SQUG ClP Limited Analytical Reviews Pcge 1 IN N

- Because of the brace the suppod may not respond in a ductile manner. Therefore it must be subjected to a lateralload check in accordance with Section 8.3.4 of the GlP.

- The lateral load check consists of subjecting the support to a loading of 1 x dead load plus a transverse acceleration = 2.5 x floor ZPAwhere the raceway system is attached.

l For Elevation 262.5' of the Control Building find the floor SSE E-W = ZPA := 0.34 g .

acc := 2.5 ZPA acc = 0.85 g ,

1 P $ := W j.acc P g = 385.1 lbf 12' f

P 2 = 27.5 -Ibf j P 2 := W 2 acc i P 3 := W3.acc P 3 = 179.3 lbf l

P 4 := W4 acc P 4 = 171.6 lbf 6 c P e

P = 763.6 lbf y( P := P $+P 2+P 3+P 4 W := (W $+W2+W 3+W4 )1 g W = 898.3 lbf q

M := P g 18 in + P 2 30 in + P3.38 in + P447 in M = 22636.3 lbfin P 10 in pullout _A = 3421.0 lbf pullout _A := W + +

12 in 12 in M P.104 pullout _B = 2522.7 lbf pullout B :=

+

12 in 12 in shear _A := shear _A = 381.8 lbf~

shear _B := shear _B = 381.8 lbf Page 30 CBLETRAY.MCo A

w

~,

Vermont Ycnkee USI A48: Sample Evaksations for Cable Tray Deadweight Supports '

SQUG ClP Limited Analytical Reviews Page '2.5" ofg n  % / 'h DIN .%  ;

-Check Weld at 8 and C: Area of weld for a P1000 = AweW P1000 := 31.625 in -

tres ::

W- +h8 2 f'** 523.4 A in weld _P1000 Allowable load = F, m = 3213.0 $ } Weld OK in

- Check Weld at A-pullout _A + har_A2 .

f , := I res = 529.6 b

Ag h Allowable load = F, g = 3213.0 $ } Weld OK in 1 l - Check Anchor Bolts
From Review # 2 find a 1/2" Phillips Red Head anchor bolt has an allowable pulloutload = Ft = 1717.5+lb _

w pullout := pullout _A pullout = 3421.0 *M > F t= 1717.5 lb } Anchor Bolts Not L Adeouste Support members and connechons are Not Adeouate for Lateral Load Check l

l l

CONCLUSION: The supportis not seismicaisy adequatep.c Ae.gp ,Aws, l

Of #$e 6M l

4 i l 5

i i

1 C8LETRAY.WCo Page 31 i

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