23357223 elevators and escalators
TRANSCRIPT
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ELEVATORS AND ESCALATORS
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OF THE DECISIONS THAT MUST BE MADE by the designer of a multistory
building, probably none is more important than the selection of the vertical
transportation equipment-that is, the passenger , service and
freigt elevators and the escalators. Not only these items represent a major
building expense being in the case of a 25-story office building as much as
1! of the construction cost, but the quality of elevator service is also an
important factor in a tenants choice of space in competing buildings.
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MOVEMENT !ATTERN
VERTICAL" ELEVATORS " LIFTS
INCLINED " ESCALATORS " MOVIN#STAIRS
HORI$ONTAL" CONVE%ORS && 'AL('A%S
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H%DRAULIC TRACTION
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ESCALATORS
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MULTI LEVEL
ECSALATORS
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H%DRAULIC
TRACTION
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COM!ONENTS OF
#EARED ELEVATOR
INSTALLATION
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COM!OSITE
HOIST MOTOR
AND SHEAVE
ASSEMBL%
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!ASSEN#ER ELEVATORS
"N# $%&' ()**#+#N')'# #'##N
1/ +#&)(#N')0 ) +)&#
2/ #0#3'"+& )N N"+$0 "**)4# %)0()N&
/ #0#3'"+& )N &$00 "**)4# %)0()N& N(
6/ #0#3'"+& )N '00 "**)4# %)0()N&
'# #0#3'"+ 70NN#+& 8" )& '"
1/ (#'#+$)N# +#9%)+#( 474)':
2/ 404%0'# '# N%$#+ "* #0#3'"+& N#4#&&+:
/ (#$N(& "N #0#3'"+& '" # 40#+0: (#*)N#(
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BUILDIN# !ARAMATERS
&)4 7+$#'#+& *"+ #0#3'"+ '+**)4 404%0')"N&
1/ *"+ "**)4# %)0()N&--- '# 70NN#( "**)4# &74#
2/ *"+ "'#0& --- '# N%$#+ "* "'#0 +""$&/ *"+ +#&)(#N')0 %)0()N&--- '# N%$#+ N( &);# "* 7+'$#N'&
"**)4# &74# "+ '# N%$#+ "* "'#0 +""$& "+ 7+'$#N'& $%&'
# (#'#+$)N#( *"+ #4 *0""+
'# N%$#+ N( #)' "* )N()3)(%0 *0""+& $%&' # <N"N
USABLE FLOOR S!ACE
NUMBER OF !ASSEN#ERS
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NUMBER OF !ASSEN#ERS
'# 7"7%0')"N "* #4 &'"+: )& (#'#+$)N#( : '# %&0# *0""+
&74# . '# *"00")N 30%#& 4N # 4"N&)(#+#(
--- "**)4# %)0()N )' "N# %&#+
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--- "**)4# %)0()N )' $%0')70# %&#+
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--- +#&)(#N')0 %)0()N& N( "'#0&
1.5-1.? 7#"70# > +""$
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--- "'#0
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1 7#+&"N > &)N0# +""$
--- +#&)(#N')0 %)0()N(#7#N()N "N 7+'$#N' &);#- 2 "+ 5 7#"70#> 7+'$#N'
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RE)UIRED HANDLIN# CA!ACIT%
'# '"'0 7+"0# $#N "44%7N4: *"+ #4 *0""+ )& %&#( '"
(#'#+$)N# '# N#4#&&+: 4"N:#N4# 474)': "* #4 #0#3'"+
+"%7 (%+)N )N- +%& 7#+)"(
'# '+**)4 $"(#0 404%0')"N& +# &#( "N ')& 7#+)"( #4%&#
(#$N(& "N '#&# ')$#& 4N # &'N(+();#( N( 4"$7+#(
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ELEVATOR !ARAMETERS
FIVE MINUTE HANDLIN# CA!ACIT%
'# No."* 7#"70# '+N&7"+'#( )N *)3# $)N%'#&
*"00")N +# '# &'N(+( '+**)4 !
"**)4# %)0()N& )' #+0 %&#+&---11-15!
"**)4# %)0()N& )' "N# %&#+---1@!
)' ) 7+#&')#--- 1@-25!
AVERA#E 'AITIN# TIME
"**)4# %)0()N )' 7+#&')#---2-25 .
"'#+ %)0()N&---25- .
+#&)(#N')0 N( "'#0&---6-1 
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CAB CA!ACIT%
'# N#4#&&+: *0""+ +# )& 404%0'#( %&)N '# No. "*
7&&#N#+& '" # '+N&7"+'#( #4 +%N '" 4)#3# '#
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N#' *0""+ +# "* ' 0#&' .22 &9$'> 7#+. )& (#&)+0#
TIME LOST AT STO!
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*+"$ *0""+ '" *0""+ )'"%' )N'#+3#N)N &'"7& N( '+)7
*+"$ '" )' "N# )N'#+3#N)N &'"7, 70%& (#*)N#( (""+"7#N)N
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S!EED
#0#3'"+ &7##( )N )- +)&#& )& (#7#N(#N' "N ")&')N #)'
N( 4"&#N "N '# &)& "* '+**)4 404%0')"N&.
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'" #N&%+# &'+%4'%+# N( )+ "+N# N")&# )N&%0')"N N(
'#: 3# 3#+: ) #0#4'+)4)': 4"N&%$7')"N
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HI#H RISE ELEVATOR #ROU!S
ELEVATOR #ROU!IN#S
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ELEVATOR #ROU!IN#S
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ELEVATOR $ONIN#
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ESCALATOR DIMENSIONS
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ESCALATOR DIMENSIONS
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ESCALATOR #ROU!IN#S
CRISS CROSS ARRAN#EMENT
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!ARALLEL ARRAN#EMENT
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!RINCI!AL COM!ONENTS OF THE ELEVATOR
Te car
is a cage of some fire resistant material supported on a structural frame
Te ca*+es ,ropes-
are connected to the cross-head Ctop beam of the elevatorD and carry the
Eeight of the car and its live load are made of groups of steel Eires
Te co.nter/eigt
is made up of cut steel plates stacFed in a frame attached to the oppositeends of the cables to Ehich the car is fastened.
Te e+evator 0acine
turns the sheave and lifts or loEers the car. )t consists of a heavy structural
frame on Ehich are mounted the sheave and driving motor
Te saft or oist /a1
is the vertical passageEay for the car and counterEeights
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A2vantages of H12ra.+ic t1pes of e+evators.
1. *rom the point of vieE of architecture and construction the major inherent
advantage of hydraulic units is the absence of an overhead machine
room, a penthouse, and traction equipment.
2. 'he elevator load is carried by the ground and not the structure. y
contrast, traction units place a large structural load on the pent house
and machine room floors and on overhead steel as Eell.
. 'he hoist Eay is smaller due to the absence of a counter Eeight and its
guide rails.
6. 4ars can be loEered manually by the operation of oil valves. 'his is
particularly useful and important in the event of control equipment failure
or poEer failure.
5. 'here is essentially no limit to the load that can be lifted.
Disa2vantages of H12ra.+ic t1pes of e+evators.
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g 1 1p
1. 'he $ajor inherent disadvantage of the hydraulic elevator is its operating
expense. ecause it is not counter Eeighted, it requires a relatively large
motor to drive the oil pump, and all the energy is lost in heat.
2. 'hey are limited to loE-rise, loE-speed applications.
. +ide quality is inferior to that of a good traction unit, although it is entirely
acceptable to residential, mercantile, and industrial applications.
6. ecause oil viscosity changes Eith temperature, the ambient temperatureof the space containing the pump and the oil storage tanF must be
controlled to maintain ride quality and performance. 'he high inrush
current taFen by the pump each time it starts, Ehich is every time the
elevator travels upEards, require a stiff poEer supply to avoid problems of
light flicFer and other undesirable line voltage fluctuations.
5. Noise from the pump and motor plus piping noise can be disturbing. 'his
problem can be ameliorated by moving the pump mechanism Cup to 5 ft
f th l t h ft/