33 KV E pole design

DESIGN OF 33 KV STRUCTURAL PO 60 Deg / D.E. pole tower  E!3.6"#$ Te'()*'+l ,pe'*-'+t*o),  Nomal span L= 60 M Wind span Lw = 75 M Max. weight span Lmx = 115 M Min. weight span Lmn = -200 M Line deviation = 60 De g Teper+tre r+)ge  Min. temp mn = 5 ! "ve. temp. av = #2 ! Max temp. mx = 75 ! Power 'o)1'tor p+rt*'l+r,  Name $ 2#0 s%mm. """! &anthe' &anthe' ( "l. 1)*#.)+ 1)*#.)+ mm, mm, Diamete' = 1.)7 m 'oss a'ea " = Weight*M W = 0.6#7 /g*m 'eaing st'ength  = 6)71.05 3inal Mod.o4 lastiit = 5.5005 !oe8ient o4 linea' expansion "l4 = 2.#0-05 9nslato' dis dia. Dis thiness Dis inslato' length

Dd = 2:0 Dt = 170 Dil = + x Dt  220 =

mm mm )00

2*)1 pre,,re '+l'l+t*o),  ;elia eliaone = 5 asi wind speed ?< = 50 M*se # se.pea gstwind speed 4ato' /o = 1.#75 Meteo'ologial wind speed ?' = ?<*/o = #6.#6 ;is oe@. 4o' level. 1 A wind >one 5 /1 = 1  e''ain  e''ain 'ogh. oe@. 4o' atego' 2 /2 = 1 Design wind speed ?d = ?'x/1x/2 = #6.#6 4 Design wind p'ess'e &d = 0.6 x ?d x ?d = 2*)1 lo+1 o) 'o)1'tor 

D'ag oe8ient !d = st 'esponse 4ato'  = Wind load on ondto'*M Wind load on ondto'

1.00 1 .: Wd = &d x !d x d x  = 3w = &d x !d x L x d x  =

2*)1 lo+1 o) te),*o) *),l+tor ,tr*)g,  D'ag oe4.!di = 1.2 st 'esponse 4ato' i = Wind load on st'ing ( Wi Wi = !di x &d x Dd x Dil x i , /g =

D'ag oe8ient !d = st 'esponse 4ato'  = Wind load on ondto'*M Wind load on ondto'

1.00 1 .: Wd = &d x !d x d x  = 3w = &d x !d x L x d x  =

2*)1 lo+1 o) te),*o) *),l+tor ,tr*)g,  D'ag oe4.!di = 1.2 st 'esponse 4ato' i = Wind load on st'ing ( Wi Wi = !di x &d x Dd x Dil x i , /g =

SAG TENSION CALCULATIONS  Del = W*" = 0.275 !ase 1 $ ve'da temp. temp. A still wind Max.ondto' tension 1 = +00 /g !ondto' st'ess 31 = 172.6+ /g*m2 B1 = C%'t C%'t  0 x 0  W x W E * W = 1 L x L x Del x Del x  x B1 xB1 * 2+ = 6.2+06 6.2+06 31x31x 31-(/-x"l4x(tav-tav 31-(/-x"l4x(tav-tav ,E= LxLxDelxDelxxB1xB1*2+ LxLxDelxDelxxB1xB1*2+ = x"l4x(tav-tav,= 0 31 x 31 x ( 31 - / , = /= -#6.5:: !ase 2 $ Maximm temp. A still wind B2 = C%'t C%'t  0 x 0  W x W E * W = 1 L x L x Del x Del x  x B2 xB2 * 2+ = 6.2+06 32x32x 32-(/-x"l4x(tmx-tav,,E=LxLxDelxDelxxB2xB2*2+= 32-(/-x"l4x(tmx-tav,,E=LxLxDelxDelxxB2xB2*2+=  x "l4 x ( tmx - tav , = 5.++02 32x32x( 32-(/ 5.++02  , E 6.2+06 32 = )6.005 !ond'. tension 2 = Max. sag = 1.2:) M !ase # $ ve'da temp. temp. A 4ll wind B# = C%'t  Wd x Wd W x W E * W = +.52: L x L x Del x Del x  x B# xB# * 2+ = 1.2:0: 3#x3#x3#-( /-x"l4x(tav-tav,,E= /-x"l4x(tav-tav,,E= LxLxDelxDelxxB#xB#*2+ = x"l4x(tav-tav,= 0 3# x 3# x ( 3# - / , = 3# = +)1.:)0 !ond'. tension # = !ase + $ Minimm temp. A #6 F o4 4ll wind B+ = C%'t  0.#6xWd x 0.#6xWd W x W E * W = L x L x Del x Del x  x B+ xB+ * 2+ = 2.2007 3+x3+x 3+-(/-x"l4x(tmn-tav,,E= 3+-(/-x"l4x(tmn-tav,,E= LxLxDelxDelxxB+xB+*2+= x"l4x(tmn-tav,= -#.+202 3+ x 3+ 3+ x ( 3+ - (/ (/ - -# -#.+ .+2 20 02  , E = 3# = +26.11) !ond'. tension # = CGMM"; !ase !ondition ension (/g, 500 !ase 1 "ve. temp A still wind !ase 2 Max temp A still wind 222 !!50 !ase # "ve. temp A 4ll wind 4 !ase + Min temp A #6F wind

0." &ole ontal spaing $ !.3$ A minimm ve'tial spaing $ Note $ Cwing angle 10 deg. taen with pilot inslato' attahment. ottom J-a'm height $ Max. ondto' sag = 1.2:) Min. g'ond lea'ane = ).161 !0.5"0 ottom J-"'m height = !!.0 Middle J-a'm ht. = !3.040  op  op J-a'm J-a'm ht. = 2*)1 lo+1 o) 7o18 o9 pole   op  op pa't $ &anel height = 2.6+ 'ae length = &anel anel net net s s'4 '4a ae e a'ea a'ea "e = 2x0.0 x0.0.0 .0)x )x2 2.6 .6+ +6 6x0 x0.0 .0+x +x0. 0.5 55 5# #K0. K0. &anel solida'it 'atio = 0.270*(0.+0K2.6+, = &anel d'ag oe8ient !dt = 2.66 st 'esponse 4a Wind load on pole panel 3wt = &d x !dt x "e x t x t. = &'oviding 15 nos panels in
Lo+1, +'t*)g o) pole Rel*+7*l*t8 re:*ree)t   Wind load at pole J a'ms =  op  op J 2)

Mid J 57 N.!.

ottom J 1:+ .W.!.

 'ansve'se loads $ Wind load on ondto' = Wind load on inslato's = Line devn. !omponent =  otal =

211 117 11+0 1+6:

60 deg devn. 127 117 570 :1#

 otal t'ansve'se load ating on pole st't'e $  op J Mid J N.!. 1500 1525 .W.!. :+5 :75 ?e'tial loads $ N.!. Weight o4 ondto' Max = 7# Min = -127 Weight o4 inslato' st'ing = 60  otal Max = 1#5  otal Min = -65 Longitdinal loads $ 0

Se'r*t8 re:*ree)t    'ansve'se loads $ Wind load on ondto' = Wind load on inslato's = Line devn. !omponent =

N.!.

 otal = ?e'tial loads $ Weight o4 ondto'

Max = Min = Weight o4 inslato' st'ing =  otal Max =  otal Min = Longitdinal loads $

S+9et8 re:*ree)t    'ansve'se loads $ Wind load on ondto' = Wind load on inslato's = Line devn. !omponent =

N.!.

 otal = ?e'tial loads $ Weight o4 ondto'

0 0 +00 +00 N.!. 7# -127 60 1#5 -65 0

Max = Min = Weight o4 inslato' st'ing = Weight o4 lineman =  otal Max =  otal Min =

0 0 +00 +00 N.!. 7# -127 60 150 2:5 -65

ottom J 1655 1000 .W.!. ++ -76 60 105 -15 ))0 .W.!. 60 deg devn. 0 0 200 200 .W.!. ++ -76 60 105 -15 #50 .W.!. 60 deg devn. 0 0 200 200 .W.!. ++ -76 60 150 255 -15

'etion loads = Longitdinal loads $

#50 0

#50 500

Rel*+7*l*t8   'ansve'se loads $ N.!. .W.!. ?e'tial loads $ Max N.!. .W.!. Min N.!. .W.!. Longitdinal loads $ N.!. .W.!. Se'r*t8   'ansve'se loads $ N.!. .W.!. ?e'tial loads $ Max N.!. .W.!. Min N.!. .W.!. Longitdinal loads $ N.!. .W.!. S+9et8   'ansve'se loads $ N.!. .W.!. ?e'tial loads $ Max N.!. .W.!. Min N.!. .W.!. Longitdinal loads $ N.!. .W.!.

 op J

Mid J

ottom J

!"00 5"

!"$" "

!6"" !000

!3" !0" 6" !"

!3" !0" 6" !"

!3" !0" 6" !"

0 440  op J

0 440 Mid J

0 440 ottom J

+00 200

+00 200

+00 +00

1#5 105 -65 -15

1#5 105 -65 -15

1#5 105 -65 -15

0 #50  op J

0 #50 Mid J

0 #50 ottom J

+00 200

+00 200

+00 200

2:5 255 -65 -15

2:5 255 -65 -15

2:5 2:5 -65 -15

Rel*+7*l*t8   'ansve'se loads $

 op J

0 500

0 0 500 500 DEAD END CASE Mid J ottom J

N.!. .W.!.

$" !0

30" $00

530 3$"

?e'tial loads $ Max N.!. .W.!. Min N.!. .W.!. Longitdinal loads $ N.!. .W.!.

!3" !0" 6" !"

!3" !0" 6" !"

!3" !0" 6" !"

!!50 0

!!50 0

!!50 0

 owe' pole loading t'ee

POLE TO2ER DESIGN V,(+pe ;+r,  J-a'm length = 502.5 J-a'm width = +50 eight = +00 3o'e de late'al 4o'es = )07 3o'e de to Max 3o'e de lontdnl. 4o'es = 1#)+ 3o'e de to Min. Max. omp'n.= 2+): /g Max. tension = C(+))el $& IS%C " "'ea = ).10 ;ad o4 g'n = 1.1) Max Cl. ;atio (l*', = "tal omp.st'ess ( /g*m2 , = 27+ "llow omp st'. Net e@. "'ea = 7.+2 "tal tens. Ct' endg moment 175 /gm endg st'ess= Cen mod. x = 20.) !he
P+rt !  Fro !0.5" % +7ot. Ct'ength = Tr+)tl. Chea' = 1500:+51525:75 +7+6 Max. to'sion de long. 4o'e = 2#76 /gm. # panel h "xila 4o'e in <'aing (/g, = +112 @. Length= ?r+'*)g ,e't*o) = $ & L50&50&5 "'ea = #.07 ;ad o4 g'n = 0.77 Max Cl. ;atio (l*', = "tal omp.st'ess (/g*m2, = 1##) "llow omp st'. Net e@. "'ea = 2.71 "tal tens. Ct' Lo)g*t1*)+l 9+'e 7r+'*)g,  Max. ho'>tl. Chea' = 2x(275#05+#0, = 2021 Max. to'sion de long. 4o'e = 27#6 /gm. # panel h "xila 4o'e in <'aing (/g, = #+66 @. Length=

?r+'*)g ,e't*o) = $ & L50&50&5 ;ad o4 g'n = 0.77 "tal omp.st'ess (/g*m2, = Net e@. "'ea = 2.71

"'ea = #.07 Max Cl. ;atio (l*', = 112) "llow omp st'. "tal tens. Ct'

; pl+) 7r+'*)g, +t ;+r ltl. Chea' = Max..M. M= 65#+ /g.m Max. ho'>tl. Chea' =

P+rt 3  Fro 5.0 % to !0." % +7oo*)t. Ct'ength =

P+rt 5  Upto 5.0 % +7oo*)t. Ct'ength =

De,*g) o9 7otto p+rt 7r+'*)g,  Chea' moment #110 o'sion = 'ag slope  nL = 0.01+056 1-nLKn 'aing Md 1 2 &anel top lvl. ))60 )#7: &anel top !*! #70 #:6 &anel height 5:2 60: &anel
+2#2 57.000 0.)7:+ # :770 +0# 6#5 +21 757 :177 2L60x60x5 5.75 1+22 1.:2 +1.60 2+70 1.7+ 2.707 #021

'aing Md &anel top lvl. &anel top width &anel height &anel
6 677) +5) 72# +:0 :62 71:1 2L50x50x5 +.7) 1+)) 1.52 56.72 2+10 1.61 2.707 265#

7 6056 +:0 755 501 )00 6:76 2L50x50x5 +.7) 1+#6 1.52 5).2# 2#)) 1.67 2.707 25+0

: 5#01 501 7:) 52# )+0 65:5 2L+5x+5x5 +.2: 15#) 1.#6 6).1# 2#+: 1.5# 2.707 2+##

'aing Md

11

12

1#

&anel top lvl. &anel top width &anel height &anel
2:2) 570 :): 5)6 1071 57:# 2L+5x+5x5 +.2: 1#51 1.#6 7:.72 22)1 1.70 2.707 21#6

Appro&. 7*ll o9 :+)t*tt*e,  Ct< +xL150x150x20 Ct< leats +x L50 x 50 x 5 Legs pa't # +xL150x150x20 Legs pa't 2 +xL150x150x16 Legs pa't 1 +xL)0x)0x6 'aings #2 L 60x60x5 "nti lim
1)#1 5)6 )#: 622 111: 55#: 2L+5x+5x5 +.2: 12)+ 1.#6 :2.20 226: 1.75 2.707 20+6

))# 622 )7) 650 116: 5#00 2L+5x+5x5 +.2: 12#: 1.#6 :5.:5 22+# 1.:1 2.707 1)5:

6)6.: 11.+ 705.6 )#0.: ):.+ 10#.# 5

'aings 'aings eltsO Jplans J-a'm st't &l.:th A lts L1 *N$ M16 - P 1

$.00 % E&te),*o)  Wind load on
Pro<*1e !5 %!6 7olt, *) leg 7tt >o*)t. De,*g) o9 7otto p+rt 7r+'*)g,  Chea' moment= ##6+ o'sion = 'aing Md 16 17 &anel top lvl. 2000 1#50 &anel top width 650 67) &anel height 650 665 &anel
Ct'ength = +2#2 1: 6:5 70) 6:5 7+0 ))7 #60)

Cetion "'ea "tl omp st' ;ad. 4 g'n. Clende' 'atio "llow st'ess 3..C. Net e@ a'ea "tl tensile st'

2L+5x+5x5 +.2: )#5 1.#6 6:.#+ 2#52 2.52 2.707 1+7:

2L+5x+5x5 +.2: ::6 1.#6 70.66 2##) 2.6+ 2.707 1+01

2L+5x+5x5 +.2: :+# 1.#6 7#.#1 2#2+ 2.76 2.707 1###

Appro&. 7*ll o9 :+)t*tt*e,  Legs pa't 1 + L200x200x16 #::.0 Ct< +x 'aings 2+x L+5x+5x5 :2.+ Less no'mlst< L Ct< leats +x L+5 x +5 x 5 11.6 *N$ M16 - P 1 F /g = 5 1. "ll st't'al steel shall on4o'm to 9C$ 2062 'ade 250 ( 3+1 2. "ll e nless stated. +. 3a<'iation shall on4o'm to 9C$ :00. FOUNDATION LOADS  M"J. ?. L. M9N. ?. L. Mxx N;M"L #:+2 262: 11#15) JN +#:2 #16: 1##7:5

E E&t

2.#17 /g /g*sm

mm

m*s

m*s /g*m2

;? 3 Dt 11*7*11

sm

2.:1 211

1.)5 +7

/g /g

6.2+06 6.2+06

6.2+06

222

1.2:0: 1.2:0: 11+0 1.:7: 2.2007 2.2007 ):7 Cag (M, 0.717 !.$4 0.252 0.2)0

/g

e width = +0

J to J tip ho'>tl. 2020 2#+:

0.5" mm

J to J a'm ve'tl. 1#20 1#05

M M

M M M M M

4'om 4'om 4'om 4'om

L L L L

0.52 #K0.1 = 0.26 to' t = 115

R 6.100 M

0.270 2.0# /g

2+.0 ,= ,*2K10, = to' t = 12#:

Mid pole 620 .W.!.

+.0: 0.6: 1.)2 /g

/g

0 deg 127 117 0 2++

/g /g /g /g

Mid pole 620 620 0 deg W! ++ -76 60 105 -15 11+0 .W.!. 0 deg 0 0 0 0 .W.!. ++ -76 60 105 -15 +00 .W.!. 0 deg 0 0 0 0 .W.!. ++ -76 60 150 105 -15

/g /g /g /g /g /g /g /g

/g /g /g /g /g /g /g /g /g /g

/g /g /g /g /g /g /g /g /g /g

#50 500

/g /g

Mid pole

6$0 6$0

/g /g

0 0 0 0

/g /g

0 0 Mid pole

/g /g

0 0

/g /g

0 0 0 0

/g /g /g /g

0 0 Mid pole

/g /g

0 0

/g /g

0 0 0 /g

/g /g /g /g

0 0

/g /g

Mid pole

6$0 6$0

/g /g

0 0 0 0

/g /g /g /g

0 0

/g /g

mm  'e length = . ?.L.= ?.L. = 2#)1 @. Length= +6.# 2+15 #22

 

:#7 S 1.0 :)#0 tion.

551 1)6 -)0 /g 55 3.".C. :.:0

/g*sm /g

Width = #50 6:12 /g.m /g.m 05,*+ = 15,*+ = 156#: @. Length= 22.) 251) 1:62 267)0 /g ight mm = 5+

1:0 -60 /g +0 3.".C. 1.67 S 25+0 /g

+00 m

70.: 2##: 151) /g ight mm = 5+

3.".C. 1.75 S 25+0

+00 m

70.: 2##: 12:0

3.".C. 2.07 S 25+0

+)

m

56.) 2+10 1710

3.".C. 1.60 S 25+0

7+01 2)70

/g.m /g.m 1#5,*+ = 65,*+ = 717:# @. Length= 26.) 2511 17#+ :)#00

/g.m /g.m 1#5,*+ = 65,*+ = :)##1 @. Length= ##.+ 2+)5 1:16 107160

1:0 -60 /g 7) 3.".C. 1.5) S 25+0 /g

1:0 -60 /g ): 3.".C. 1.56 S 25+0 /g

 otal C.M. =  n = 1L*1- L + :1#+ +21 66# ++0 7)1 7:#0 2L60x60x5 5.75 1#62 1.:2 +#.++ 2+6+ 1.:1 2.707 2:)#

7#+# 1.5#)) 1.0++2 5 7+71 ++0 6)2 +5) :26 7+): 2L50x50x5 +.7) 1565 1.52 5+.#2 2+21 1.55 2.707 2770

) +512 52# :2# 5+6 ):2 6#06 2L+5x+5x5 +.2: 1+7# 1.#6 72.1) 2##0 1.5: 2.707 2##0

10 #6:) 5+6 :60 570 1025 60#) 2L+5x+5x5 +.2: 1+11 1.#6 75.#) 2#11 1.6+ 2.707 22#1

 

L 50x50x5 L +5x+5x5   L+0x+0x+ 6x TCM! 75 0x1#0x12  otal /g = /g =

7#.) 21+.) 55.0 72.: 50.+ 30$0 !0

 otal a'ea"g= 1.5:0 ient !dt = 2.00 dt x t x "e = ##1 /g.m /g.m 1#5,*+ = 1:0 65,*+ = -60 )566# /g @. Length= :5 21.5 3.".C. 2521 1.62 1702 S 25+0

125020  otal C.M. =

/g 75)6