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teri teri
Ha
li
in
stry stry
4.1.1
..1.2 ..
te te
KWli
(r te
4.1.2.2
4.1.2.3
KWb
lo
3(troU 3(troUey ey wei,gh wei,ght) t)
trol trolle le ro
weig weight ht
the
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CMAA CMAA SPEC SPECIF IFIC ICAT ATIO IO
70-2000
INTRODUCTION
is
ic id
ptim ptimum um
elec electi tion on of equi equipm pmen ent. t. ic
ig
70-1.
Genera Genera Specif Specif.ic .icati ations ons
700-2.
Cran Cran
700-3..
Stru Struct ctur ural al Desi Design gn
70-4 70-4 ..
Mech Mechan anic ical al Desi Desiqn qn
70-5.
Elec Electr tric ical al Equi Equipm pmen en
Serv Servic ic
Clas Classi sifi fica cati tion on
70-6. 700-7.
Glossary
70-8.
lndex
Copy Copyri righ gh
11:1 11:1.2 .2.0 .000 00
ia io
ic
im
DISCLAIMERS
Th
rane Manufacturer's
nite
th
ta es
informatio
isio
Associatio
of Mate ia
containe
in th
of America, Inc, (CMAA) is an independentincorporale andl ng
ndustr
trad associatio
affiliated wilhTlhe
I)
Specifications
201,
clo
www.mhia,org/psc/PSC th ri
Pr
ucts Cr ne
harlotte
NC 28217,
ch uest ons.cf ia Crane Manufacturer's
SPECIFI'CATIONS 1th
to
10 design or prod ce electric overhe travelin rane ic ot co pl ithl es Specif al on MA ha no egal authoril to eq ir or en orce ompl ance it th se pecifi atio s. hese ad sory Specif cati ns provid tech ical guidel ne fo he sert pe if hi appl at on ollo in thes pe fi at on do ot ssur hi om lian it pp icable ederal st te or loca regu at on
Sp cificati ns agains liab lity fo nt inge en of an ap licabl etters atent, opyr gh liab it no ssum an uc er of th se Specif cati ns ar expressl ad sed"th?l eter inatio 01th validi of an uc op ig ts aten ight is ot infringe en of such ig ts is nt rely th ir espo sibility
ISCL IM RS
WITH THES
SPECIFICATIONS
IR SU
AN
IN
NITY
liab it an he
:
•
4
"I
BL
70-4
1.4 1.5
Mechanical
Design
t ,
.. .:..
Runway Runway Conductors
4.1 4.2 4.3 4.4 4.5
Load Blocks Overlo Limi Device Hoisting Rope Sheaves
Design Stresses General
4.8
Bearing
4.10
Bridge Drives Shafting Couplings
4.15
Slops
1.6
1.7 1.8
Pr
1.10
1.13 1.15
Erection Inspection Operator
ainten nc
an
Cr ne 70-5
70-2.
Cran
El ctrica 5~1"'" 5.2
Classifications
Equipm nt General Brakes
2.1
._
5.4 2.3 5.6 2.5 2.7 2.8
5.9 5.10
3.1 3.2 3.3 3.4 3.5 3.6
3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14
Material Welding Structure Allowable Stresses 'Desjq Limitation Bridge En ruck Footwalk an Handrail Op rato 's Ca Trolley.Frames Bridge Rail En ie Crane1s Structura Boltin Gantry Cranes
5.11 5.12 5.13 5.14 5.15
Resistors Prot ctiv an Safety Featur Master Switches loor Operated Pendan Push utto Stations Limi Switche Installation Brid Cond ctor System Runway Conducto System Voltag Drop Inverters Remote Contro
70-6
70-7
Glossary
70-8
Index
~':-'
.
_.'
70-1 GENE.RAL SP;ECIFICATION
t.t
SCOPE
1 . 1 . .2
he type
ic ultipl
in in gi de electric overhead travelin
ic cranes It houl
suspended 1.1.3
th is
ro
system.
This pe ificatio outlines in ection 70-2 ix differen la es of rane er ic as guid fo determinin th er ic equire ents of th indi idua application. Inmany ases ther is no le ategor of ervi _a qualifie
1.1.4
from the
be understo
in id that th pe ifications
persons.
er ic co di io ha an importan influenc onth .gea bearings ir ro e, electrical quip ent, an aximum life an inimum ai tenance.
life ofth earing part ofa rane us on ider in pe if in
uc as Wheels an to assure
1.1.5
on idered
hi
ay in re se .Ioadingan
in 1.1..
arts
er ic
equire ents an that quip en
be se'lecte
hich
ic
this pe ificatio
re er to certai
portions of othe applicable
pecifi ations
odes or tandards
io ABMA
American Bearin
Manufacturer
Associatio
Was'bington, DC 20036-2422 AGMA
American Gear Manufacturer lexand a,
irgini
Associatio
2314
20 1- 95 Fundamenta Rating Factor an Calculatio AISC
American Institut hlcaqo
ANSI
of Steel Construction
Illinois 60601-2001
American National Standard
'1
West
2n
Ins1i1ut
tree
I/ASME 830.2-1995
ASME
Method lo Involute Spur an Helica Gear Teet
ican Societ ee Pa venu
of
Overhead
echa ical
antr
anes (T
un in
.i ge Single or Mulitiple Girder,
ng ne rs
'W'
----!
ASTM
American ociety fo slin 00 ar ar or ve es nsho ken, en sy vani
-\
at rial
(-
'.
..
19 2.
550
Miami,
lo da 33 26
Charlotte, Nort
Carolina
28217-3992
verhea rane In pect on an Cran Operator's Manoal an pe ator's aining id NECI NFPA
Ma nt nanc
he li
National Electnca Code National Fire Protection Associatio 9101
Quincy
Massachusetts'
02269-9101
199970-935B NEMA
National Electrical Manufacturer Associatio 30 rt 1.7t tree uite 1847 ss yn Virginia 2220 :ICS1-1993
Industrial Contro System
an
Elect'FTcalRequirement
of Labor
ecto at of Sa et St nd rd 20 on ti ut on Avenue .W Washing. on .C 20 10
Prog am
7/1/97)
Stress Concentratio .E Pe erson/ alte Copyright, 1997
Factor ilke
ta as ut li ed from fo th esig at
1.
eUII..DIN
ESIG
EM
ed rati
uropee ne
La Manutent on
ection IHeav Li ti
.quipmen
ules
NSIDERATIONS
1!. ..
1.2 ..1.1 io
1.2.1. will clear a l : 1
in th crane. 11.2.1.3
After dete
11.2.1.4 id
1.2. ..
inatio
chiner
or
he
ne es ar
provid
of th building height ba ed on th fa tors
ailroa
bo e, th
or tr ck learance unde
rane runway
located
with ANSI 'Require 1..
nt
fo
1 4 .3 , Safety
ixed La ders
LEA. AN
th
1.3.1
be increased. 1.3.2
le
it
the purcha er unle le 1..4.2 it in le
it
1116 detrjmentallateral or
vertical deflection le
lo
lu
L,;;:;
1.5.1
Th
runway ondu tors
applicatio
ay
nd hall be inst lled in accordan ic le
it
rticle 61 of th National Electric
od
an
ompl
:~ -~
'~ ..
,,'"
1.5.2
,.~
,~ ,~
iL_,..,
1.5.3
J:~
1...-
ly
1.5.
it
<'~
t>,~
"~
1.5.5
,.~
;~.~
it
it
,~-~
.'.'.,...
. " . .
1.5.6
5.
~~I
,""-
~LLUJ
::lOC!}
~~~.
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:::;:: ..
;:r:.'"
::§e
II
II
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::§e
+I
II
II
If
II
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II
II
a:·UJ UJ'..J
>0
....J
rn
I-
lV IW
dl
I~
U!W
,... ...J
-~'~
I-
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I-
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._
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xew
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i=
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«(_)
>-
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'I 0«---'
I->e. ...Jw «LU
a:
stated.
iC-
it
1.
DESI
ST
i:;i
SSES
,~ to
ll
ic average
material. This li it tion of tres provides argi of trengt to allo fo ariation inth ropertie anufactu in an operatin ondition an de ig as um ti ns an unde no onditi iz 1.
of aterials houl impl
ENER .:.. -~
1.8.1
Al apparatu
covere
by this specification
in il
parts. .~
1O
I~
1.
PAIN IN protective coating.
standard or as otherwis
~,
specified.
,~ .~
'WI
1,10.1 le
ld
".~
OW'
.,..
'~
,,..,-
un'"
..11 TESTING
1.11.1 unless otherwis
specified.
1,1 t.z
1.,.12
DR.AWINGS
1.12,1 ll :'
ld
1.13.1
in
is
1.14 LUBHICATIO 1,.14.1 operation, th with th cran
re torofthe an hall as ur that al bearings ge rs et manufacturer's reco mendations
ar lubricated in ac ordanc
1.15.1 2-2. an
CMAA-O erhead
rane In pe tion an
1,15,2
ainten nc
Chec li t.
le inin
l.
70-2 CRAN
CLASSIFICATION
2..1 General ic in ccordanc
it
this pe ific tion
as closel
as possible
in
Load prob bility expres ed as
rati of
le unde ea
load
li Al classes
cranes ar affected b y . t h e operatin
he cranes an be la ifie
into loadin
conditions
roup ac ordi
agnitude
ondition to th tota
la therefor
to th
fo th purpos 'to
er ic
of th classifications,
on itions ofth
os
everel
loaded
self contained
tructura unit
an be la ifie
into differen lo di
groups
th servic
conditions am fully 'known
in lo equipmen
hi
er ic
an
fo infrequent
over
anes
aintenan e.
hi
ay be se
in repair hops iig.hta
embl
operations lo
er ic
lift
lh it capacity.
.5
( H E A V Y SERVICE) in ic
rate
10
capacity
building
2.6
mills, rate capacity.
or
2.7
ic itio
Ap il
Th
definition ~ " -
TABLE 2.8-1
\,.
..~- ,,""'i.""'.~ ... ".'.~
.r: -, .;.' :J r r ~·-~-...~~~v
DEFINITION OF
Load Cycles
LOAD CLASS
~_·~~·t:' ;.\
4·
MEAN EFFECTIVE LOAD FACTOR 0.35 -0.53
L2
0.531-0.67
L3
0.671-0.85 0.851-1.00 Irregular occasional followed
in seve continuous
periods L O A D CLASSES:
L2
load.
L O A D CYCLES: Nl N2 N3=
20,000 to 100,000 cycles 100,000 to 500,000 cycles 500,000 to 2,000,000 cycles
N4
Over 2,000,000 cycles
11
3.1 IYIATERIAL
3.
WELDIN
D1:4.1, "Specification fo 'I
le
lo in
3.
Tabl
3.4.7-1.
in io io
STRUCTUR 3.3.1:
General' ld
anufacture
l-
prio to ship ent.
ia le io
in
id ia
as operatin la ly
th
cran
winQ load
manufacturer
tructu e.
Load (LL)
supplemental
or es
no
load lo
emperatu io
su ported by th
I:::!
ewin
devices.
ffect, lo ds on al
ays,
tair ay test. loads
3.3.2.1.
.. in
hi
in
io
erti al acting loads,
th
3.3.2 ...
:s:;
3..3.2.1.1.4 .2 Hoist Load
1.05
acto
1.2
2000 (HLF
is 0.5
mo
15 percen
50 :.
3.3,.2.1.1.5
.005
oist Sp ed (FPM :S:;.5
Inertia. Forces Th
inerti
forces occu during acceleration or
in
The be on idered as 7. ti es th ac eleratio endt ucksan
en ties .. he.liv
or de eleratio
load shal be lo ated inth
io
rate (F /S am po itio
2) bu no le
than 2. percen
as he calculatin
he erti al
le
3.3..2..1 1 . 2 3.3.2.1i .2.1
Oper'a.ting Wind load (WLO)
1. 1!.2
13
3..3.2.1.2.2
id
0.05
SPAN WHEELBASE 3.3.2.1.3
Extraordi'nar
Loads: Load (WLS)
3.3.2.1..3..
the geographical location an degree of exposure to prevailin wind (See ASCE 7-latest revision as applicable). 3.3.2.1.3.2
pe ia loadin
of he rane tructu
consideration. where
re ulting from th bu pe st ps
ro
lc
he followin
is T1
equation
it
3.3.2.2
rsio al
Forces
T2
ic
oments
of the Bridqe Motors:
3.3.2.2.1
in
3..3..2.2.2
rane
il lo the lo
de er ined
hall be al ulated with th
Du
to
in
rtic l.
ds
iz
3. 3.3... hall be co s.idered as thos hori ontalfor es
ultiplie
th
erti al di tanc
to
betwee
th centerline
heel load acting norm
.2
3.3.2.3-1.
'I
..~:'!.I.:;:'~~~~~'~::~
where 2i
....
+C
2i
ic
Fig. 3.3.2.3-1
3.3.2.4
Load Combination
3. ..2.4.1 DL(DLFs)
TL{DLF
LL{1
HLF)
IFD
3.3.2.4.2 DL(DLF 3.3 ..2.4 ..
DL
3.3.2.4.3 ..
Cran DL
TL
WLS
in collisio TL
LL
CF
3.3.2 ..4.3.3
15
ALLOWABLE
STRESS
3.4.1
O.600yp
O.600yp
O.3S0yp
3.4.2
O.660
O.660yp
O.3750yp
3.4.3
O.7S0yp ."S
3.4.4
ALLOWABLE BEARING STRESS
SHEAR
ombine
O.7S0yp
I
O.800yp O.900yp
3.
St es es
01
3.4.4.1
following formula
3.4.4.2
3.4..
Buckling
nalysi
la
in 3.4.8)
3.4.6
le
io
lo
ll of ny eg ent)
le
IS
IT
(Cc)2
0A=--------~~--------~+ 3( ),
3.4.6.2
th
ro
ection of axiall loaded ompres io 12112E
embers
us eptibl
to bu ling
hall be al ul te
3.4.6.3 followin
je requirements
is
my
()
1.0
by
By
ex
__ (jB~
bx_
BX
cr-
when
where:
,= effectiv
length factor unbraced length ompr ssio modulu
(J'yp
embe
of elasticity
yiel poin e c
l s
consideration it omen alon lo 12n2E
if
existe
23(K Ur)2
1.1 Case 1.0 .. mx--
and
0.85
la
where /M unbraced in th plan of bendin
unde consideration. M , I M 2
isbe
.H be 'Used: 0.85 1. 17
3.4.7
A.llowable
inimum de ribe
tres
ex ee
allowabl
in able 3A.7-2A it
alue fo if
arious ategorie
it
as li tedi
able 3.4.7-1.
3..4..7 -26 ..
he
inimum to
A8!LE3.4.7·1 ks
CMAA Service
oint
ategor
Class
.28
49
22
11 24
!:l' 16
Stress ra ge valu
I
in
10
of
terial yiel
stress.
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FI
3..4.8
RE
3.4.7-
Buckling
3... 4.8.1 li
ll io
"b In
tensio
flange
and/or ho izonta
tiffener
'T=K .k bucklin coefficien compressio buckling coefficien shea
K'T Th bu ling
oefficient Kcan
'Tar identified fo
fe
impl
ases fo plates with impl
upported
rati
in
in it
,U
be determined from th followin
6[t]
22
1tE 12(1
26.21
it Pois on's rati
(for teel
j.l
.' 0.3)
to th Ifcompression an shea stresl?,esocc
't
formula:
ompres io
simultaneously
't
g-J-+__:'_V-;=:;'=[
forc
th individual critical buckling stresses in
(j
and
3T
3=~=i.jJ=gk=r=+=[=.~=J
=2
where: actu actu
ompres io hear tres
tres
critical co pression stress critical shea stress
'T 0'k
't \f3"
0:
()'k=
io
If th
Gyp (0n)
0.1836 (0yp)2
lkR
where:
(01k)2
0:
yp
proportional limi (assumed
at
yp
11.32)
resultin
.-----
-_._--- ....... (I) (f)
:::J
:3 .,
ri
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(I)
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ro
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ci~~
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'iii
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!t1
(I)
c:
OJ
!t1
c:
:0
(I
(t
"'0
_J
c: c:
:..= 'iii 's c: (I 'iii (I)
.,-'
s: ....
.
:0 ..0
!t1
::J ......
!t1
3.4.8 ..
Design
Factors
i}B lc i}S=V(J2
in
(J1kR
~~~~~DFB
=V0
+31?
TABL
3.4.8.3-
DESI.GN FACTOR
LOAD COMBINATIO
1:.7
Case
0.175
1.5 1.35
3.
DESI
IMIT TI
'S ld
3.5.1
ir
Proportions: Uh
....
where:.
di tanc
betwee
thic ne
of plat
webplate (inche
(inche
0.05
:)
3.5.2
Longitudinal
Stifteners
3.,5.2.1
in is
OA
io
0.9
ll
[~)2 the compression in
3..5.2.2 approximately
1..-2 [0.3
..25 and
0.
0.55 ti es th
istance,
_§
h~
espe ti el
,fro
th inne
urfa
ofthe co pres io
]h1
of the compression
tlanqs'to
"h
where: longitudinal di tanc
betwee
full dept
diaphrag
or tran erse
tiffener
(inche
A.
3.5 ..2.3
of
to
2..7, an fo elements supporte 42. .. Ifth atio of12
io
is 3.5.3
Stiffene
Plat
in
ompressi.on:
lo
3.5.3.1
la
tiffeners, an th ro isio of Se tion 3.5..2.3 tiftenersmes inimum equire ents as follow
3.5.3.2
0.,2 [--']2
[2.2
As]]W bt
27
3.5.3.3
Fo tw longitudinal
0.8
tiffener atth
thir points of th
[~,P
ompr ssio
flange
here 1 : 1 / 3 is th unsupporte
bt
56
]bP
b/
if
3.5.3.4
is th
1.1
where:
'" longitudin
di tanc
betwee
diaphrag
or tran erse
tiffener
inches
As
in
;"
3.5.,4
Diaphragms
and Vertical Stiffeners
3.5.4.1 350
VTv"" longitudinal di tanc thic ne
of
be ween diaphrag
tran erse
tiffener
(inche
eb (inche
'1v= 72
in
3.5.4 .. 3.5.4.3
ic
The moment
'i
.2
(a where:
aD::::r equired distance betwee to=
inimum required
stiffeners (inches)
eb thic ne
(inche
3.5.2.3.
,
.,.,.,...
3.5.4.5
3.5.4.6
it to
in
trolle
whee load
distance
1, Section 3.3.2.4.1
etween diap ragms)
in ased
n:
<::;18ksi
maximum Ca
3.5.5 3.5.5.1
1/888
deflection. 3.5.5.2 loa
deflection.
3.5.6 3.5.6.1
50
3.5.6.2
50
3.5.7
Singl. we girder includ wide flange beams, standard structural configurations having
be ms
beam
einforce
deflections.
Tensio
ne section)
Ld
3. of
AI
Shear Built of
values only
with plat
orothe
3.6.1
01 th
pa
g,reateL
3.6.2 3.6.3
he bridge
nd truc
high nd provided
houl
be on tructe
of tructura
it an Interm di te railing. Foot al
teel or othe inch
hall ha
ui able
ateria ro isio shall le lu ll the r u n w a y ail. Load .. .. .4 and 3.4.
li -resistant
al in
.In urfa an
2, Section 3.4.2.
50
drivin
3.8.1
gi de
id
specified, io in
is
3.8..
ll
5 . forthe otherwis 3.8.5
specifie
ab lo ation, unle
..
Means
830.2.
le
ll
3.9.3
ifie
to
3.3.2.4 and 3.4.
3.10.1
th
ASeE
ARA,
EA or an othe
3.10.2 quar an ection of tile bridge rails.
joined
om er ia
rolled sections
st ndar join bars ithout openin betwee
it
ends Provisio
equi alen
hall be
3.10.3 3.10.4
4.13.3-4
pe ific ti ns
ad to preven
reepin
3.11 .END TIES
in quar quarin in
th
empl employ oyed ed
Du
rane rane to part partic icip ipat at
on ider iderat atio io
it
houl houl
th gird girder er
in onti ontinu nuou ou
be gi en 1. th
fram fram
acti action on to esis esis hori hori onta onta load load
ario arious us type type of load loadin in
ondi onditi tion on
an th re ulti ulting ng
.AND
3.1.2.1 brid bridge ge stru struct ctur ures es 3.12.2
12 and 16 whee whee
8-WH 8-WHEE EE
anes anes se
Figu Figu
3.12 3.12.2 .2 1.
EQUA EQUALI LIZI ZING NG
12-W 12-WHE HEEL EL EQUA EQUALI LIZI ZING NG "if
16-W 16-WHE HEEL EL EQUA EQUALI LIZI ZING NG
8-WHEEL C O M P E N S A T I N G
1 .2 .2 - W H EE E E L C O M p iE iE N S A T IN IN G
1 6 W H EE EE L C O M PE P E N SA SA T N G F I G U R : E 3.12.2-1 31
the
3.13.1 is
90 perc percen en
3.13.2 in ar Sect Sectio io
RY
tabu tabula late te 1,
3.3. 3.3.2. 2.4. 4.1. 1.
3.13.3
3.14 3.14
of thos thos
RA ES
.en
,:..-
ie
ll
le
4.1
etf, etf,ec ecti tive ve load load in
ervi ervi
la ific ific tion tion fo
.a echa echani ni al
ompo ompone nent nt
formula. 2( axim aximum um load load 3(ma 3(maxi ximu mu he
axim aximum um load load used used intlie intlie ab ve form formul ul
brid bridge ge an 4.1.2.
trol trolle le
(min (minim imum um load load load load
hall hall be st blis blishe he
by usin usin th rate rate load load an appl applic icab able le
only only
Load iactors conv conv rt axim aximum um load load into into ea effe effe ti dura durabi bili lity ty ho sepo sepowe we an bear bearin in life life al ulat ulatio ions ns ea
4.1.2.1
effe effe tive tive load load
an are
lo ds as foll follow ow
axim aximum um load load
is 2(ra 2(rate te load load 3_(ratedload .667.
4.1.2 ..
iv
li
ll
2(ra 2(rate te load load 3(tr 3(trol olle le weig weight ht 3( ated ated load load trol trolle le weig weight ht
1 . 2.3
iv
KlYb
2(ra 2(rate te load load 3(tr 3(trol olle le weig weight ht 3(ra 3(rate te load load trol trolle le weig weight ht
4.1.204
For K"
4.1.3
he achi achine ne ervi ervi fa to fo expe expect cted ed diff differ eren ence ce dura durabi bili lity ty hors horsep epow ower er Stre Stre on entr entrat atio io ac or (see (see Se tion tion 1.1. 1.1.6) 6)
4.1.4
is brid bridge ge weig weight ht brid bridge ge weig weight ht
le
io dlis dliste te inTabl inTable4 e4.1 .1.3 .3-1 -1 depe depend nd
an be obta obtain ined ed from from datain stre stre
on th
la
of rane rane er ic is
on entr entrat atio io
fa tors tors by
an ac ount ount
eter eter on
TABLE 4..1.3-1 Cd
Service .72
1..16
33
4.2.1
on ider iderat atio io
fo impa impa
an
er ic
hall hall no ex ee
io
th en uran uran iz
tren trengt gt
ofth ofth
ater ateria ia used used
ther ther
ic
iv
4.2..2
A. trai traigh gh beam beam theo theory ry it th aver averag ag ulti ultima mate te stre streng ngth th
al ulat ulated ed
ombi ombine ne
st es es nott nott
exce exceed ed 20 perc percen en of th
ater ateria ial' l'
-OR-
'ate 'ateri rial al's 's aver averag ag
ulti ultima mate te stre streng ngth th
-ORin
in
th stre stress ss prod produc uced ed
4.2.2.2
l' tres tres plif plific icat atio io strength. 4.2.2.3
ac or
it
ther ther lift liftin in atta attach chir iri. i. de ices ices
du
in it on ider iderat atio io
fo impa impa
an
uc as ey bolt bolt an twis twis lo
er ic
hall hall no ex ee
halt halt be de igne igne
im ia th endu endura ranc nc
ppli ppli able able po tion tion
4.2.2.4 specification. 4.
VE LOAD LOAD
LIMIT DEVICE
4, ..
lift liftin in of an over overlo load ad that that wo ld au 4.3.1.1
4.3.1.2
in hois hoist, t, trol trolle le
34
or rane rane
li perm perman anen en da ag
to
prop prop rl
aint aintai aine ne
it hois hoist, t, tr lley lley
ane. ane.
ic
4.3.1.3 othe othe so rces rces
4.3.1.4
lo
uc as bu no li ited ited to nagg naggin in
is
publ publis ishe he
4.4.3
ly
op
of th load load tw bloc bloc in
iv
brea breaki king ng stre streng ngth th
Flee Flee
of th load load bloc block, k, or natc natchi hing ng
li
ic
ngle ngle
4.4.3.1
4.4.3.2
. . .
rum
f
Fig. Fig. 4.4. 4.4.3. 3.11-
Rope
in 12 Slope
Sheave
35
gi
atisfa tory perfor an
over
id
rang
applications
ir rope is on idered
co su able
to
4..
SHEAVE
4.5.1
le
4.5.2. in rope maintenance. ABLE 4.5.2·1. CMAA Class
37
Class R.ope
,6
20
20 24 24
30
30
16
&B
18
rope diameter
4.5.3
limitations.
,:.
manufacturin
..
process. if it
.A27 or equal.
4.6.1.1 4. .. is in it it high point. 4.6.3 th
36
cran
ll manufacturer
io
le
li
elde
teel dr
4.6.3.1 4.6.3.2
Re whicheve
1/
inch,
is smaller. TABLE
..6.4-1
i_~~E~~:~;: ~-"
CMAA Class A&B
16
18 20
24 30
rope diameter
in rope maintenance.
limitations. 4.
EARING
driv s, co si eratio
should be give
it backdrivin
characte istics
AG
.Tr
io
Allowabl
in
Sp
strength horsepower-> Sa'
126000
Allowabl
Pd
durability horsepower I _
ac
L126000
Kv
Id
37
allowabl strength horespower allowabl durability horsepower pinion peed rp pitc diameter of inio (inche dyna ic fa to (strengt an durability
where:
load di tributio fa to (strengt an durability elasti coefficient hardness factor (durability) geometry factor (strength) geometry factor (durability) diametra pitc ri thicknes factor allowabl bendin tres fo ateria (psi (str ngth allowable. onta tres fo ateria (p i) (durabilit rane la fa to (strength) cran clas factor (durability) Values fo
c,
I,
A G M A Standard
., and
si
ds
)an
Cd
for TABL
Cran
c,
4.7.3-
la
SIS
.75 .85
.90
1,00 1.05 These factors-are commercial gearboxe recommendations.
ll ar to be size accordin
to gearbo
"_'t.
manufacturer's
4.7.4 4.7.5
ll earing no enclosed in gear ases
hi
ay on titute io
4.7.5.1
ua ds
io
hall be securely fa tened.
is
it
hazard unde normal operatin
conditions
4.8 B E A R I N G S
follows: TABL
4.8.2-
2500
2000
ours
ou
Us th appropriat specification.
in
manufacturer.
4.9 B R A K E S
be
is
5pe
0p
arrangements: 4.9. ..
39
4.9.2
Hois
Control, Brakin
ea
in
it ir
in
4.9.2 .. ontrolle
lo erin ifth
speeds Th inhe en regenerati
ontrolle
brakin
eans of
quir el
ag
otor
l. 4.9.2..3 th 4.9.3
service.
Trolle
_Brake
4.9.3.1 ll
4.9.3.2
io
infe
10
'cab operated (non-s eleton rane it ab on bridge,. trolle brak or non-coasting mechanical driv ay be provided he pe ifie Wh provided th brak or non- oa ting echani al driv hall
lu in
4.9.3.3
Of
iv
ir
4.9.3.4
th 4.9.3.5
service.
Ifa trolle parkin torque.
brak is provided it sh ul have
4.9.3.6
in
itio
4.9.3.7 Fig.ur 4.9.3.7-1.
FIGUBE 4,9.3.7-
GA
OPERATED
FLOOR lp Operated
Indoor Service Emergency
Indoor Drag Emergency Parking
Emergenc Coasting Mechanical
Outdoor or
er en Coasting Mechanical
or
non-
~""-.- ....
,.·.·>.'0~':·,".
,-.""
""'~'~:'';;;''!T"
4.9..
Brlidg,e Brakes
'~.U"I Y~:: :":~
..~r~.'._.....
4.9.4.1
ab-ope ated
non- eleton
rane
bridge brak
hall be required ha in
to qu
apabilit
to to
4.9.4.2
it
in
4.9.4.3
th 4.9.4.4
servic ..
Ifa bridge parkin torque.
ra
ispro ided itshould ha
torque rating of
cranes de ig ed with
4.9.4.5
4.9.5 4.9.5.1
torque.
....
4.9.5.2
n w s u
d i
e b
mechanical, electrical
4.9.5,3
of greater
pneu atic
hydrauli
or gravit
eans
4. ..5.4 le
4.9..5.5
th
pedal.
th
contro circui
.4.9.5.6 4.9.5.7
4.9.5.8
Th minimu 4.9.5.8-1.
requirements fo
F IG U R E 4 . 5 .8 -1 .
CA Atta he Trolley Indoor Service Emergency
O P ER AT E
to
FLOOR ttache to Bridge
Operated
Outdoor Service Emergency
Outdoor Emergency Coasting Mechanical
Of
ergenc
or
Coasting Mechanical
41
4.10.1
lu 1. of this specification. FIGURE 4.10.1-1
A1
A2 DRIVE
CRANE
~-1"
r--f--··
~: ~: j•
R IV E
AS DRIV
4.10.1.1
th
centerol
.bridg an
connecte
to
self ontained
gear
li io
4.10.1.2
.bridge. Th
tr ck wheels
hall be
4.10.1.3
id
4.10.1.4
to
either directly connecte in
-4 be onne te
le
to elf- ontained gear eduction unit
Th
ea re uction unit
hall be applie
to th truc
to elf- ontained gear redu tion unit by uitabl
ouplings
in shafts an
couplings.
4.10.1,.5
in in 1. th driv
nd th
otor
hall be onnect
4.111 SHAFT,ING
4.1.1.1
Genera
Nomenclature
an
alue
tor Section 4.11 TABL
SURFAC
4.11.1~1 ND:I IO FA TO
SURFAC
sc
1.4
Fo
olished- ea
1.0
Fo
achined- ea
.75
Fo
achined- eneral
CONDITIO
treate
an
treate
an
usag
in pe te insp ct
haftin haftin
haftin
TABLE. 4.11.11-2
1.0 1.015 1.03 1.06 1.125
43
enduranc
""averag
trengt te sile
of haft rn terial
trengt
of haft
.36
ateria
ur
ia
(Jyp
""
tres ro
amplificatio
fa to fo
ending
tr ss amplificatio
fa to fo
irec tensio
tres
amplificatio
fa to fo
or iona
tres
amplificatio
fa to fo
rans er
he hear
50
4.11.2
Al haft
ex ep th bridge ro -shaft
ection
hich do no
arry gear
houl
be ol rolled ha ting
by
manufacturer
Di tanc betwee bearin '" Shaf diameter (inches)
lo at riti al shaf
enters
in he
la peeds:
4,760,009~D 1. N'
istanc betwee bearin Shaf diameter (inche
enters
in he
4.11.3
4.9
deflecti
is expres ed in degree 4.
pe foot Inaddition th tota angula deflection produced by th 011
TABL Type Drive
4. 1.3Remote Cranes
Moto Torque 67 50 100
0.10
.070
.oao
0.10
0..10
otor
4.11.4
Stress Calculations
ll
4.11.4.1
li PIA II where: axia load cr ss sectiona B.
Fo shafting subjecte
re il
tobandinq
where:
C.
Fo shafting subjecte
where: torque
or soli or holl
to to sional load ,th torsiona shea stress shal be calculated as follows-
5 '1 3
sh ft
0J(5\f3).
shaft,
VIA
(5
where: cros
sectiona area
combined asfotlows-
To sional an
rr;_
'I;.
transverse shea stress
{~
5V
Co
45
ib
Normal Operating Conditions
in sectio
amplificatio
fa to to th re pe ti ig
no inal
4.11.4.1 an
tres es no co bined) as de er ined in'Se tion
..1.4.1.
of
to io al stre es an
al ar fluctuating-
d.
je
sth not
shafting. is
.0
4,12 COUPLINGS
4.12.1 in anufactu er's 4.12.2
li
tandar
type
ll
4.13.1 treads ac uratel
chin d.
is
ridg wheels
ay ha
eith rstraighttread
ll
or tapere
treads as embled
4.13.2
it if t s 4.13.3
h o
-- .. ....
"J~ti2_i
Sizing of
l, th
.-~
il
following: parameters shall be on idered .. whee diameter effectiv rail head widt ie
(inches) (inches)
260) le
th
if lw
be considered.
4.13 ..3.1
i~ (2 (3
K·Iw
rate rate
Where
Th
loadIT load/T trolle
weight
load fa to Kb forthe bridge
capacities abov
heel is li
lc
DO-tons.
....
.75(BW)
where: LL
f(LL) .75(8W)
bridge weight trolle weight X/span
1.5f(LL)
rate
load
47
"'-'.~U'·~·~~
-7t'''~~I'.·.··~"'·-::''~~~~'i.:~~:f~~
';
.
TABLE
4.13.3-1
TYPIC.AL B R I D G E
20
40
OA
ORS K.,w
CAPACITY
BRI'DGE. S P A N FT..
ON
..782
.B27
1:
20
25
.732
.722
.716
10
7\-2
.B12
.750
.736
.760
.744
.842
.740
.738
.754
.747 .760'
.877
..
.789'
..768
BO
.686
..857
.802
..779
.no
90
.B98
.869
.815
.792
.782.
.806
.796
.,823
.812
.926
..890
120
.934
..90
.882
..
.863
,I
.718
70
110
,~
T A B L E 4.13.3~1 Continued TYP.ICAL B,R.I:DGE L O .A D F AC TO R . CAPACITY
BRI'DG'E S,PAN
bw
IN T ' O N S
35
40
50
60
75
100
.714
.713
.713
.709
..709
.70B
30 .711
40
50
.731
60
.741
70
.t§2
80
..761
.715 .736
.729
.72.6 .723
.754
.746
.742
.738
..747
90
48
-.:,
100
.786
110
.SOO
.793
.762
120
.814
.807
.797
.753
.745 .755
.790
.782
.774
.763
:1
4.13.3.2
31.5
c. -_ [,1'
6-0
1,
)]
RP~2~.;1.5)
TA LE 4.13.3 SPEED FACrO:A
WHEEL DIA. IN INCHES
10
300
30
,.907
.958
.898
.944
400 1.485
.892
1,079 ,.915
.88.2
967
15 1,8 21
350
1,Q40
,915
1.163
1'.066
.860
'1.043
.977
1..126 1.049
,869
.887
,852
,932 .860
.873
.887
.949 ,973
.944
4.13.3.3
1.033
Cd
intera tion of
achine
part
4.13.3.4
K w , ; :: ;
id
tw
uW
K...l
3-3.
4.13.3.5
p. p.
4.13.4
4.13.5
Pr
er
lear
ce fo
ri
eels
fi 49
vi.•
TABLE 4.13.3-3
s, CLASS
OF
KWIMIN
.8
.8
.9 1,45
.9
TA.BLE 4.13.3-4 l: ASGE Wheel Hardness
ASCE
dia.
(D
3011
inches 8000 9000 11 12 15 11
00 BHN
60 70 ARA-B 100#
9550 10650
, 12 50 0
16550
175#
171#
17500·1 22500
15950 19150
. .-
&USS
135# US8105#
12000
..
85 AAA·A
2250
29800
3 15 0
12
25500
:, ;337 ' :~ ~;,"38250,1' '40500--1 47250 44600 39400 45000 60750'"'··84400 506DO 1 12 5
84000 ' 9 45 0 26
13000 9850 10950
11
.. 30 00
24850
[1
26
22750
19500 24400 29.250 34100
'52 .56 61400
12 30 36
'-
11
11750
15 11
20 HN
1 25 5 - . 13900 14800 17750 22200 26650
17400 20900
23050 27650
85300
95550
109700
122850
24350 44400
31300 65800
12 36
35
88750
93950
106500
112750
130500 60
1 04 9
145700
10 30 116950 131550 146200 17
27200 21600
11
58Rc
38850 42900
(615 BHN)
[1 21
44050 55050 77050 29
B7450
27 30
97150
14 1 63 2 181350
36
Eff ect iveWid th of R ai lH ea d ( W Inches (Top head minus corner radii) o te s
1 . A l o wa b
he
ay 3 . T h R cl BH N 4. So
ai
50
1.750
oa
ar
ne
a se d a i h !e . o nv er si o IS ut
1pr
ee
AS el n.
ui
de
E140, lungslen
01h
ne
carbid
en
ball.
hs nd
b su r a c
ea
es
..
3.500
4.14 Blfl\J1PER
4.14.1
ll
in
oi
following minimu
characteristics:
4.
..14.1.3
4.14.2
01·breakage or loosenin
of bolted
onne tion
4.14.1.1 thru 4.14.2.
4.14.4
4.14.4.1
Number
4.14.4.2
imit is have th
followin
minimu
ll
characteristics: it
4. 1/
4.14.5.3
4..
bumper. stop
engaging the
51
4.15.1 4,15.2
bumper. 4.15.3
.; .'
~')
:'1-
_.' 70-5 ELECTRICAL I::QUIPMENT 5.
GENERAL
curren
lt powe supplies
variable spee
li
io
lt
operation.
1. ontrol an
protecti
an
afet
fe ture
id
ie
ic
5.1.4
it
ly
610
5.2 MOTOHS-AG 5.2.1! ig ay be pe ified.
5.2.1.1
li
in le
Moto.rs used with Inverters: 5.2.1. ..
2. fo th
S,.2.2
application.
Motor lnsulatians is
io
it
Table 5.2.2-1.
53
NEMA PERMISSIBL
TABLE 5.2.2.-1 MOTO WINDINGTEMPERATUR.ERISE,
& T . C . C . C he am
unt,
..
5.2..4
Voltage in 1'
o. .1
TABL
SOURCE DESCRIPTIO
5.2.4-
Nominal
Motor
System
Rat.ed
Voltage
Voltage
AC
DC
is
120
08 ( 1 " ) (2
200
1-_24_O-=--.-,
230
480
460
230
575
400 Adju tabl
AC
oltage
(g,)
240
A·ectified
460-3-60 20B
thru
(9) 9)
500
240
300
Constant Potentia 'Serie hunt Co poun
600
DC
Battery
115 to 120.
250
230
maximum
600 volt
io
54
th
,,<'
~~
(mil motors).
(5) (6)
NEMA MG 1-10.62.2
(7)
(8)
able 10-1
(industria
otors)
250 aximum
(9)
otor inpu
850
oltage
. .2 . 4 .1 .
5.2.4.1.1
polyphas
otor sh ll be capabl
of ac eleratin
an runnin
it rate ho load ll ln ls
he th
oltage
5.2.4.2
fiel
oltage ly
upto an in ludi ie
in 11 pe en of th rate
alue of th sele te
adju tabl li
oltage po er
NE
lt in in un atisfa tory operation, su
lt Prompt
or ective actjon is reco
ended; th
IE
C84.1.2A ..
52.6
5.2..7
as ex es iv
ip torque
li
to
ccordanc
ti gs
with Tabl
5.2.7-1.
55
GlU .c:cD
>C,)t:z:::a:C..J t-
:t-
I.:~ CD
zUJ..,c:
CJCW t-WZ<> ~(IJ
000000
(I')(I')tDCOCOCO
CI
..:.!!1
CJW(i)
15"0 cD.c .t:Ul
UUt-..J
O_~ ,_
c: W ~ t -
lC)U')0000
OZenW ClZt-
....
.,-..-(1')
(I')COCO
......
...J
CI
...J
:E ""
I'-1.0
...J
~j5~~~
.~
CO(oCOCOCOtD
"0 000000 (1')(")(1')
[].I
In
"0
In
lC)L()0000 "-"""C'J(I')
(f)
coco
(f)
tJ
!:!iOO:t:m
t:
a::-:t:c
otu~~ UZ:::i:...J
owd .r,n
56
. . .. . .
(5
(f
"0
CD'i::
.......
.!:2
It
.~
.i
a.
E-
S~ C D I t i .....
"0 ..... tJ
P-Ul (J) ."t:: .!:2 "0
l'tl
(I)
._
....
cD
[].Iu
a.x
,_
(l)
II
:J
oJ::
<:J
le
[].I
(!)
"0
c·
[].I
ro
U')L()00
:.c~
:J
ttI~
IS
..... OOc;
(I) ......
(I)
-OE:g :!2(1)~
-r-r-C')(",)
oJ::
rti
(DID
.............
O,
(I)
en
en~o
'0 c:(ull) «-II) :E~«
.c
..
...JW
<;x:c:(~ ::i:!::.o< u::::za:
t:t-
(I)~
3:
j5
.~
«i~
a.
(I) (f)
cDca
cD.;:!
..Jo
ID
..... ttl :J
.t:Q)
(f)
c:
(I)>.
.t:Q)
c:
.....
Q.u
-0"0
000000
<0<;:
~t-«a:(!l : z : :w:Z - t - z z~t-z_
ttI_
E»
0"'01::
(!)
(1)-
.s"5
UO·WO CI t-i=Ua: ::EO-;:Z:::m
a: :E
CJCC::UW i=W
c:
ID
'-.c:
-(I)
ID ,_
D.
"0
.!:2
:J
<:EU~ ::
r:::
:Co
VJotii=a: aI
ttl
CDtll
~.;::
~r:DUowu. (5
(l)
ti
O~[ij
Com;;::::
.Q
(f)
·'; :::;(oCD
.!
~E.2
.....
.Q
5,2.8
qui:rrellcag
ot rs hall av high ta ting torque lo is
tartin
urre
an high li at full load
imilar
io
5,2.9 5,2.9.11
echa ical ho epower class.
Mechani!cal
it
on iderations fo th effe
of
ontrol ambien te perature
an
er ic
Horsepower
Mechanical 33000
'"
tota eigh in pounds to be lifted by th hois driv ro te to th hois uc as th ur ha er's li te load whic includ
This in lude al item applicable purcha er furnishe atta hments
efficiency pe gear reduction. nu be of gear redu tion
n= E=
m=
TABLE
5. ..9.1.1.1.-1
Bearings Anti-friction .93
.98
ly
io
is
in
li
lu
57
OIST
EC ANICAL
FFICIE CY
.1
T A B L E . 5.2.9'.1.1.1-.2. H O l S T O V ER AL L
M EC HA N IC .A L
E FF I C l E N C
I,
Tota Nu be Rope Double Reeved
Supporting Single Reeved
of Rotating Sheaves fo
ff Drum
.99 .990 ..980 .970 .960 ..951
10 12 14
.941 ..932
16
.922
18
20 22
32 34 40
10 11
12 13 14 15 16
17
18
19
.913
.904.895 .B86 .877
10
11
12 13 14
.869
.860 .851
15
16 17 18
.B43
.834 .826 .818
19
21
5.2. ..
followin
formula:
where
'c
ip
~c
•A
58
ip
O v e ra l C om b in ed i Efficiency
E f c ie nc y o f Ropes O n l y (Es)'''
(E )"
.9409
..931 .922 .913 .904
.895
.886 .877 .8'68 .859 .851 .842 .834 .8.26 .817
.809 .801
.793
.785 .777 .769
.903 .894 .885 .877 .868 .859 .850 .842 .834 .825 .a17
.809 .801
.793
.765
.777
.769 .761 .754 .746
Of
la le
rolley
ri es Trolley
Required Moto Horsepower
following formula: K. x W x V x K.
5 .2.9.1 ..2.1-E
ll 20003 :::
__
C,
--=-=__,g~x,____E-;-:33,000 K[ lu in
::::;
5.2.9.1.2.1-0) :::
5.2.9. L2.1-A an Tab! C, '"
rotational inerti
w'
of cran
5.2.9.1.2.1-8
factor load
WK
of cran
load
a/7.S) if WK is unknow :::
32..
:::
.9 if effi ienc
is un nown).
le ic
1.2.1-C
59
TABL
S.2.9.1.2.1-
Free Runnin
in 180 240
7.0
420 480 540
accelerati
time free runnin
time moto an
esisto heating, duty cycle, load spotting capa ility, an
whee skidding wh le
2For
wo
).
TABL
5.2.9.1.2.1-
100
50
33.33
4.
2.4
1.6
16.67
1.2
.8
....
of Friction Ac .,
Coefficien Friction
2.9
.5
1.5
TABL
x,
S.2.9.1.2.1ACCELER.ATIN
TORQUE
AC OR
'JKt
Contactor-Resistor
1.3-1.5 1.3-1.5
Contactor-Resistor
1.5-1.7
Ballas Resisto
1.3
C I
1.5 Adjuslable Voltag
.5 2.0
TABL
5.2.9. :2.1 TROLLEYS
HE Di Inches
ANTI-FRICTIO
30
36
Friction Lbrron(f)
BEARINGS
-..,
18
16
10
Notes: pounds
lo ls TABL
CMAA Service Class
DC Co stan w/AISE 60
inutes
5.2.9.1.2.1-
Po ential
AC Inverter AC Ma neti Adjustable
Voltag
30
fixe Secondar Resistance Perm nent Slip 1.2 1'.2 1.2
1.0
.75
1.0
.85
N/A NJA
1.0 1.4
1.3 1.4
1.2 1.4
1.6
25
(2)
oves (o
(2)
oves (o
lo
50 45
lo
is
fo co trol Fo industri
type DC
otors, co sult cran
no shown, cons lt cran
ma ufactu er
manufacturer
5.2.9.1.2 ..
5.2.9.1.2.3
61
in lo WxVxf 33000
I,.
ic (HPJ usin
th
followin
formula:
HP 33000 .00256(V where
3.3.2 ..1.2.1
bridge driv
mechanical efficiency
Required moto hprsepower an
HPJ
HPwas cornputed'above.
where:
9.1.2 ..1-E
in
wind conditions 8.
5.2.10 ..
RxVx12' where.: FL )·
xV 33000 mechanical efficiency pe 5.2.9.1.1.1. drum pitc diarpeta (inche ifie
ar Hatios=-Bfidqe an
rive
Trolle
1C
is establishe
FA
from th
otor-contr
peed-torqu
33000 to al load tons).
wh el trea 5.2.
diameter (inche
.3
io
drive
il if
il lo
5.. BRAKES 3.
5. ..
an
release.
VFO.
63
is
5.4.1
le
li
5.4..2 pe ifications
5..4.3
re ot hall appl
or ab ontrolle
anes hall
ontrolle anes unle otherwis
pply
uc as by radi pe ified.
floo operated
ar ie
5.4.4
rane
here th
iqna th applicable floo
endant
ontrol
ic
aste
pe ifications
ia le
ie 5.4.4.1
oi ts hall be furnishe
it
ontrol brakin
dyna ic lo ering, eddy-cur en
braking,
eans either
ounter torque
echanica or po er ..T pi al
an
egenerativ
echani al
br king
Bridge
5.4.
rane protection includ or ta ic ontrolle agneti
5. ..
liib id es an trolle
magnetic plugging contactor, ballas resistors, slip couplings, moto characteristics; to que.
ontrol
5.4.5.1
it mechanically
an
accelerating, reversing,
electrically interlocked.
5.4.5.2 Woun
otor,. .4::S.2-
manufacturer's
AC
publishe
quirre
age,
nd 5.4.5.2-
C.
efinit
a-hour
Intermittent Rating"" or epower at 30
olts
57 Volt
20
30
30 67 133 200 400 800. 1200 1800
100 150
no ex ee
onta tors
.4.5.2-1 Maximu
20
".
purpos
5.2~ AC pe ifically
ratings. TABL
..
hall
300
600 900 1350 11 percen ofthes
alue ll
**
it
or 12 percen ofthe
71/2
20 40 63 150 300 450
otor ul load urrent
10 40 80 1,25 300 600
hi he er issmaller.
le
TABL
MAXIMU
5.4.5.2-
INTERMITTENT
HORSEPOWERRATtNG
Volts 7112
25"
15
TABL
il
0·
5.4.5.2-
B:hour Horsepower 25
71/2
50
00
00 00
150
BOO
90
9·
15
133 iC>
55 110
225~
12.00
1350
1800
500
1.000
in tp lt
5.4.5.3
65
ABLE 5.4.5,3~
MI .. NO,
HORSEPOWER
. N
CO NTACTORS 1) D,E,F FO
ACWOUN
DEVICES (See A,S RO OR
D,E,.F EC
DA
A,S ESISTO
2" 15
3*
125 200
30 FOR
3*· 3*
thru 15 36 56 thru 110
4*·
110 FOR
thru
15 30
3** 3*· 3*
SERIES RESISTOR
23
VOLT
D,E,F
drives. le
"Numbers
If
is
(1
ly
dire tion ex ep as follows:
contactors
io (d When pe ified,
drift.poin
ulti-motor drives th
5.4.5.4
iz
no
ot
ower brak
onta to requirements ofthis
fo th su
of th indi idua horsepower ir is ie
5.4 ..
Statile Control
5.4.6.1
tati ower omponent consideration control.
5.4.6.
Magnetic contactors
uc as re tifier
Th
released
hall be in lude
ection appl to ea
re isto stepping
as
hand ontrolle
otor indi iduall
onta to
ay be co
ex ep on
ulti
(1)
reacto s, re istors et ., as equired, hall be ized with du le ic
if
5.4..6.3
5. ..6.4
if io ll
5.4.6.5
ie
l. ec
is
drive.
67
in
5.4..6.6
with consideratio
to desire
acceleration
5.4.6.7 5.4..6.8
peed
unde rate
ondition
5.4.6.9
actual hoisting spee
5.4.7
Enclosures
5.4.1:.1
turer. Standard
publicatio
-General -General
Type
CS6 classifications
purpos -Indoor. purpose-Indoor-Gasketed.
Type -Dusttight -Rainproof
raintigh an sleet-resistant, ice-resistant-Outdoor. an sleet-resistant,ice-resistant-Outdoor. in ig le
ig ig -I du tria -Oiltigh an
Type
Type 13
Type
la
e- usttight an du ttight Indoor
drip ig t-Indoor
iv
Type ic
5.4.7.2
lo ir
li in
ie
intent. 5.4.7.3
nles
otherwis
pe ified, en lo ures fo electrical equipmen othe than on rols ic
hall be uitabl to
il panels
in line di connects
b) Re isto
over
fo indoor
be adequately ventilated Brak
over
ac essory driv
ontrol
brak
ectifier panels li it
anes if required to preven ac id ntal co ta
it he
unde no
li in et ., ay
al operatin
RESISTORS
NE
0se
used. ..
5.
PROTECTI.D
.AND SAFETY FEATURES
.. supply.
lo
cces ible to th
perator'
tation or
ainlin
onta to
Interrupting Rating Th user hall tate th availabl faul in th pe ificatio th interrupting atin being,fu nished
connecte io
urrent or th
after
rane
in
anufacture
hall tate
69
ON OR NG fo Ma.lnlfn Servic Size of Contactors
8-hour Amperes
Maximum ntsrm ittent Duty Ra in Amperes"
Maximu Total, Moto Horsepower
Maximu
Horsepower
71/2
50 00 ,600 90 1350
00 00 00 1200
00 1800
s h a l l r r oexceed t
00
loadcurrent, w h i c h e v e r
is smaller.
TABLE 5.6.6-2
CONTACTORS ce
8-hour Contactors
Amperes
00 50 00 00 90 1350 2.500
Maximum Intermittent
Maximu Moto
Horsepower
Horsepower
Amperes
"f33
1800 3330
55
725
50
5.6.7
id
NEC
Overload Protectiori 5.6..8
it
5.6.9
in 200 percent. of th
hois
5.6.11
to
le
iv ig '"
l,
io
le
io
ll be in
5.6.13 th
auto atic
equenc
of loperatio
lk
is
ll
iq
lo
Devices iv equipped with
powe travelin
echani
5..
5;.7
MAST'ER SWITCHES
th
operator
5.7.4
le
..
is
specified. 5.7.5
5.7.6
Th
rrange en id manufacturer.
.I
of ther
aste
witche
le er
itches or pu
button
fo
ontr ller
ther than hoist,
le
the
71
Bridge Drh/,eGirder I...f...+----~-
~ , f Io ! .
Bridge
~---"""""-I
Troiler
0 -
A . H oi !! 1
--0----.
Grane
Flgi S.7.3a
;._.
I-+----~
Br~
TlDI!!:)'
M_ Hosl
-
otor Cran
fi.g. 5.7.3b
PUSHBUTTON
STATIONS
5.8.1
5.8.2 5.8.3
5.8.5
io
5.8.6
5. ..
~.':'
73
FI EN
NT
5.8.
SH Un
ea us lo ation, th relati tation hould. be tandar ized
ST TI
AR .ANGiE
NT
arrangemen of unit on rane pendan pu hbutto In th ab ence of uc ta dardization, ugge te
On
ft
Power
IP
Down Ma
Ho
Up
'DOYIIn
Aux Ho st
Right
Left
Trolley
Forward
Reverse BrIdge
to to
hoisting
otion.
auto atically re et th
li it swit
unle
othe wi
pe ifie
5.9.3
in 01
5.9.6
5.10 INSTALLATI,ON
5.10.1 li 5.10.2
le trical equipmen hall be lo ated or en lo ed to preven th operator from ac identa pa ts unde normal operatin ondition le trical equipmen
hall bein tall.e
in ac es ible lo ations an ecr
protecte
ontact with
agains ambien en iron
5.11.1 applicatio 5.11.2
an
hall be ized an in talled inaccordan
with rticle 61
ofth
ationa
le trical Code
lo
5.11.3 ..11.4
5.11..5
le
5.12.1 5.12.2
Curren
collectors
if
it im
ll
le
of th National Electrical
ll
li
75
5.13.1 in
96
93
ondu to
uppl
taps
5.13.2
le load
to approximatel
5.13.3 individual
5. otor urre ts fi ed load ur ents an de an
fa tors of
ultipl
rane on th
am
runway
610
5.13.4
it
85 5.13.5 in '5.2.4
5.14.1
kxKW
Where:
k=
KW
=.
In
in
Inverter correction factor (1.05-1.1) Required otor output Moto efficiency Motor poweriactor
Inverter overload capacity 5.14.2
5.14.3
5.14.4
Di to te avefor on th line and/or ho ilte or line ea tors
ir ui
urrent
ay requir th us of Is lation tran fo
er '.
5.14.5
5.14.6 protection fo hoisti
otion.
5.14.7 groundin
conducto
is recommended.
5..15 RE OT
GONTBO
5.15,1 onne te
to th
rane throug
iring. Th
ontrol tation
ay on is of pu hbuttcns
asters it he II
ASME standards. 5.15.2 li 5,15 ..
progra 5.15.4
bl
logi
ontrolle
id
an
it input/output imin io
odules ic
in 5.15.5
io
ld
io
lo
li
controls. 5.15.6
it s s
x s
y be u
5,15,7
77
FIGURE
..15.6
iMotion
Trolley
Bridge
Main
Aux.
Hoist
Hoist
Down
Down
Motion
Bridge
Trolley
Hoist Down
-.
....
()
NOTE: -t
Fig.S.l
.'
1,
. H
4.
Ft.
5.. Number 6, Servic
Information:
C,M,A,A,
Speed
Aux.
lst:
Average L i f t
fp
rp
fL
Give~ize Number
Bridg.e:
M o v e s pe
pe
fprn
Average
N u m b e r ot M ov e
Trolley:
pe
special conditions such
Temperature
Ambient
in Building:
9 . M a te r j· a l o O
. B
fumes,
: V
nC
. L
f C
ai
oi
l 16
pe
t w
Moto
E Gi
omplet
info
ti n)
h S
'"
.~
80
ow oint pr nk er or
T'-~'
'C
oo tr ss ight ther ob truction
l-I--",
_j--
to (Span-c +~--~~R~a7.II~S~i'z-e~:~O~------------~~--~------------~~E
:l Runway Type: Operating Floor
__iJ
Pi Floo
ELEVATIO~
P_----------------
"C
"C
I~~-----r_---------------------rn
"C
"C RI
RI
..c.
r---.g
j b
iI:
"iii
c:
"Sl:
:>. til
iv
rder ("A" Girder)
'iii
:J
,ex:
~--------~~--------~ required
,I
_..A'!
PLAN
81
Fig.. 6. S U G GE ST E O !P ER AT IN G SPEEDS F EE T P ER . M IN U T E FLOOR C O N l T ' R O L L E D CR.ANES CAPACITY IN
TROLLEY
HOliST FAST
SLOW
MEDIUM
BRIDGE F.AST
50 'I
125
50
75
50 175
50
14
50 1:50
50 .2
.2 50
50 00
11
00
150
40
00
15
75
13
50
100
50
00
50 10
S UG G S T AB
g. 6.
OP RA NG SP MINUTE OLLE
'"
IN
DS
ANES
TROLLEY
BRIDGE
MEDIUM
MEDIUM
FAST
300
400
00
35
50 50 10
150
00
00
50
400
00
30
.5
,',-
100
50
',,_
'.
50 50
40
50
350
50
250
50
20
300
00
00 50
00
100
50
75
350
200
1,50 00
100
,"
70·7 GLOSSARY
.) ambien te perature
orro iv
fu es du
lade
tions.
adjusted.
.,
A:
:X
rane
anufacture
As ociation
erica,
tute). LL CT HS
onta ting de ices fo
olle ting
olle tors ar ounted on th tr lley to tran from th bridge ondu to
ur
it curren
LID
anti-Irictlo
bearin
isth minimu
expected life hours, in
in the
equipment.
'D life.
BH Brinel hardne ria hardness
in
nu be
ea urem nt of
atedirection. box girder. SS SH FT Th
in Section 4.9)
haft exte di
acro
th bridge
wheels.
th
fina over urre the outlet(s).
rote ting th
de ic
circui an
travel motion,
in iv BR.I lo
ON
CT RS
Th
electrical conductors
is in li
ll ir ll .P 'edu in
im ac
he
ovin
rane ortrolle
reache
83
CAB: An operator's
ompa tmen or platfo purposes.
le
trolle
isrigidly uppo te
on wo or
or legs unn.in
GIRDERS: Th principa horiz6ntal beam ofthe crane ontrol by in io
load brake.
percenta
of forc
tran
itte
throug
th se ompo
th
en
truc
UN
th
AULT
YSTE
CLOSED UCTO of conductors ub tantiall dental contact.
nent ber.
usuall specifie
by
retardin
AKE:
hook. DR UL
(S): conducto or group en lo ed to preven acci
EM
brak that pr vide
load.
LDIN
AKIN
onne
earth.
lowering
LECTRI
ac identai- ondu ting
ic la ificatio
RAKE:.
nu
EN .APPROAC.H Th minimu horizontal distance parallel to th runway betwee th outermos'f'extremi
covere by CMAA Specificatio fo le tric erhead Travelin IN
LA IO
LA S: it
ic No.70, "Specification rane
otorwindin it
in ulatio
atin
tUre. quar ne
of ~h btidqe J,._.;
wheels bearings axles, etc. whic supports th bridge girders. ig to or afel occurs.
th
ontrol an
otio
to automatically
in hi
infinitely variable voltag
ksi: intensity.
alfuncti
crane. LATE
hi
an frequency.
th
FO
heel evolve
independent. platform or withou load).
ES
orizonta forces perpendi ular
{ ~ \ : - : - " C; f~; ; ' ~ . { \ .
handling
~~
ertain ty es of loads. LTIPLE
IRDE
AN
motion,
iv
contactor to disconnect powe
oa ting
hara teri ti
su
that itwil
to th otio th rate
in lo ture unde consideration
ing, heaves pins an i:ng ropes
th
PERATO 'S
fram
uspended
th
AB
he operator's
ompart en from
hoistle
ho k.
lift le withou
complete definition
plus
load
LONGITUDINAL
TI FE
RS
orizonta
embe
buckling.
in in th eql:tipmen governed ..-0:-
ll relays, AI
LI
TACT R:
agneti
ontactor used
tors. IN LI DISC NN CTSWIT iH hi brea th power.line I.eadingfro collectors,
anua itch th ai line
of
ic otor rotation
PLUGGING: phas
switch.
ontrol function
hi
ac omplishe
sequence
load an unde voltag
prot ctio
fo al
in an
QUALIFIED:
person who, by possession
ATCH MARKING: Identification of non-interchangeable part fo reassembly after shipment.
ol or esol an work
proble
friction brake used fo controllinq load in th io
facturer.
ASTE
SWITCH
manually operated device whic
au iJiary de ices of an electric
otions recog-
ontrol.. elatin
tothe su je
atte
lo erin
RE EN :R TI
BR KI
thod
controlling
um load
85
UL TE peed
SPEED.
etting
th
function
hi
tend to
ain-
STOP:
attached
ontroller.
to
fixed'
in ability. le
control.
of full
in
SWEEP: Maximu latera deviatio from straightness of structural me ber, measured at le YYaxis. ll
wheel.
lo
TENV: Totahy enclosed no ventilated
prospeed. TORSIONAL.
TORSlliONA
IRDE
irde inwhic th bridge
FORCES Forces whic
ca caus
twist-
id
rails, pa ticula equire en to th specification.
is ne es ar
in ordert
onform mechanisms.
SHEAVE: pullin
force. ja
ed agains th cran
tructu
preventing furthe
n t e f
ARIABL
in in oc ur
F; EQ EN Y:
method
adjusted,
in al brid es
runway rails. STATIC CaNTHOl:
STEP LESS CONTROL: it speed.
fi ed peed
oints.
etho
ic
of witching electrical
ll
WHEELB.ASE Distance from center-to-center ermost wheels
loading.
out-
cc leration Fact rs
.2.9.1.2
cc ssibilit -C
5.10.2
upli 2.9.1.2.1-B
ow
trol
le
tr ss-Structura
illo
le
tr ss-S al
ll
le
3. .5
Di phragm
3, .4
3. 4.11.4.1
re
Deflection
Disc
nect-Drive in
4.7.
.6
2.
iv
id
le 4.
fficiencyTable
5.2.9.1.1.1-
lectri al
nt
quip
an
5.2.9.1.1.1-
5.10.1
lo lo Bolts-SlrucluraI3.13
ro
4.
lo lo
4.7.
lo
tila
is
3.
ll
ig re 4.
le
ra lo
re
(c
tr
-S
ftin
qu lize
ks
ul
3.4.8. 2.
4.
3.
il Bridge
cceleratio
id
Tabl
5.2.9. ..2.1-
du
Stress
ti ue
ur
Fa-tigue-Structura
id
Fl el /lng
Bridge
ot rs
klin
able 3.4.7-
4.4.
.2.9.1.2 Fricti
3.4.
Buckling
Stress
-Trave
tr
oefficient
ee
gl
.2.9.1 2.1-
ra
Ta le 3.4.8.2.-1
2. 3. vi
to
le 4.7.
3 .5.5 la
ific ti
Codes-Referenced1.1.S
ir
io
ir
ldin
lo
ll
ig
-7
3.3.2.4.3.2 llisio
Forces-Bum
rs
ompressi.on Member nt ctor Rating
3.3.2. .3
is
3.4..
is
Squirr
ge
5.4. .2.-.2
to 30
lt
tr
Hois Lo Hois
4..
Br
in
Factor
ot rs
4.4. 3.3.2. ..1 .4.
.2.9.1.1
-3
ic t. l- tati
4.
Impact (See V1F)
tr ll rs-A ra ge
ig re
In
ti
Invert rs (V ri
le Freque cy Driv s)
5.14
tr ll rs-B id tr ll rs-H is
(wit
tr
ki
tr ll rs-T ll
87