scaffolding - lecture 2

7/25/2019 Scaffolding - LECTURE 2

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BQS309_BCM 311

ADVANCED CONSTRUCTION

TECHNOLOGY

LECTURE NO.2:

[Sca!"#$%&'


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[Sca!"#$%&' WHAT ARE SCAFFOLDS?

T()*) a+) ,)-!+a+/ !+$%& "a,!+-* )+)c,)#a+!%# ,() )+$-),)+ ! a $"#$%& !+ *,+c,+) ,!+!4$#) a *a) !+$%& "ac) a, a c!%4)%$)%,()$&(,.

T()*) a+) ,)-!+a+/ !+ -!4a") *,+c,+)*

a**)-")# +!- #$)+)%, -)-)+* a, ac!%*,+c,$!% *$,) a%# a+) *)# ,! *!+, !+)+*5

-a,)+$a" a%# )6$-)%, ,! a$# $% c!%*,+c,$!%5-a$%,)%a%c) a%# +)a$+ ! $"#$%&*.


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7ORMS O7 SCA77OLDING


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Sca!"#$%& ca% ,a) ,() !+- !

)$,()+ 8UTLOG SCA77OLDING !+INDE8ENDENT SCA77OLDING


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8UTLOG SCA77OLDING:

T()*) a+) *ca!"#$%&* ($c( (a4) a% !,)+

+! ! *,a%#a+#* !$%)# ,!&),()+ / ")#&)+*($c( $% ,+% *!+, ,() ,+a4)+*) ,"!&*($c( a+) $", $%,! ,() )# !$%,* !+

)+)%#* a* ,() !+ +!&+)**)*.

T()/ a+) !%"/ *$,a") !+ %) !+* $%

+$c* !+ "!c*.


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ILLUSTRATION O7 8UTLOGSCA77OLDING:


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INDE8ENDENT SCA77OLDING:

T()*) a+) *ca!"#$%&* ($c( (a4) ,! +!*

! *,a%#a+#* $,( )ac( +! !$%)# ,!&),()+$,( ")#&)+* ($c( $% ,+% *!+, ,(),+a4)+*) ,+a%*!-*.

T() *ca!"# $* )+)c,)# c")a+ ! ,() )$*,$%&!+ +!!*)# $"#$%& , $* ,$)# ,! ,()

$"#$%& !+ *,+c,+) a, *$,a") $%,)+4a"*


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ILLUSTRATION O7 INDE8ENDENT

SCA77OLDING:

DISTINCTION O7 THE 8UTLOG

SCA77OLDING 7ROM THE INDE8ENDENT

SCA77OLDING:


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GENERAL CLASSI7ICATIONO7 SCA77OLDING


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A"" Sca!"#$%&* ca% &)%)+a""/ ) c"a**$$)#

a* SU88ORTED -)a%$%& ,()/ a+) )$,()+ !%

7I;ED SU88ORTS5MOVABLE SU88ORTS !+

ANCHORAGE SU88ORTS


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TY8ES O7 SU88ORTED

SCA77OLDS


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S!+,)# Sca!"#* ca% ) ! ,() !""!$%&

,/)* %a-)"/a#) !+ ca++/$%& !, "$&(, -a$%,)%a%c)!+ a%# c")a%$%& ac,$4$,$)*.


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ILLUSTRATION O7 SUS8ENDEDSCA77OLD:


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BIRDCAGE SCA77OLDS:

T()*) a+) a !+- ! $%#))%#)%, *ca!"#%!+-a""/ *)# !+ $%,)+%a" !+ $% "a+&)

$"#$%&* *c( a* "$c (a""* a%# c(+c()*

,! +!4$#) acc)** ,! c)$"$%&* a%# *!$,* !+

"$&(, -a$%,)%a%c) !+ *c( a* a$%,$%& a%#c")a%$%&.


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ILLUSTRATION O7 BIRDCAGE SCA77OLD:


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SLUNG SCA77OLDS:

T()*) a+) a !+- ! *ca!"# ($c( $* **)%#)#

+!- ,() -a$% *,+c,+) / -)a%* ! $+) +!)*!+ *,))" c(a$%* a%# $* %!, +!4$#)# $,( a -)a%*

! )$%& +a$*)# !+ "!)+)#.

Eac( !+$%& "a,!+- ! a *"%& *ca!"#c!%*$*,* ! a *!+,$%& +a-)!+ ! ")#&)+* a%#

,+a%*!-* ($c( *(!"# %!, c+)a,) a "a% *$?) $%)c)** ! 2.@ - / 2.@ - a%# ) ()"# $% !*$,$!%

/ %!, ")** ,(a% *$ )4)%"/ *ac)# $+) +!)* !+*,))" c(a$%* *)c+)"/ a%c(!+)# !% !,( )%#*.


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ILLUSTRATION O7 SLUNG SCA77OLD:

DISTINCTION BETEEN SLUNG

SCA77OLD AND SUS8ENDED SCA77OLD:


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MOVABLE MOBILE SCA77OLDS:

T()*) a+) !,()+$*) %!% a* -!$") ,!)+*ca!"#*. T()/ ca% ) a**)-")# +!- +)=

!+-)# +a-$%& c!-!%)%,* !+ +!-

*,a%#a+# *ca!"# ,) a%# $,,$%&*.

I, $* *)# -a$%"/ !+ +!)+,/ -a$%,)%a%c)

a%# -*, %!, ) -!4)# ($") $, $* !cc$)#

/ )+*!%* !+ )6$-)%,.


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ILLUSTRATION O7 MOBILE MOVABLE

SCA77OLD:


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GANTRIES:

T()*) a+) )")4a,)# "a,!+-* *)# ()% ,()$"#$%& )$%& -a$%,a$%)# !+ %#)+

c!%*,+c,$!% $* a#ac)%, ,! a "$c

!!,a,(.


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ILLUSTRATION O7 GANTRY:


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THE ADVANTAGES OF MOBILESCAFFOLDING:

S$-"$c$,/ O A**)-"$%& A%#

D$*-a%,"$%& 8+!c)#+)

Ea*$%)** A%# Ra$#$,/ O R)"!ca,$!%

T() H)$&(, O T() B+$#&) Ma/ B)

C(a%&)# $,( A 8$,c( 052-

T)")*c!$c L)&* $,( S!+, Sc+)*

T! S)c+) 8!*$,$!%$%& O Sca!"#$%&


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BASIC COM8ONENTS O7 SCA77OLDING:

Base Jack load ea!"#$ ase o% a sca%%old& Also called a

ase'la(e a#d "s )sed (o$e(*e! +"(* a sole'la(e& S(a#da!d )'!"$*( co,'o#e#( +"(* co##ec(o! -o"#(s& .sed

(o (!a#s%e! load (o (*e $!o)#d&

Led$e! *o!"/o#(al !ace %"0ed e(+ee# )'!"$*(s (o allo+

%"0"#$ o% (!a#so,s

Ba((e#1oa!d deck"#$ *o!"/o#(al +o!k"#$ 'la(%o!,

Co)'le! %"(("#$ (o -o"# co,'o#e#(s (o$e(*e!

T"e )sed (o ("e a sca%%old (o a s(!)c()!e

T!a#so, *o!"/o#(al c!oss2sec("o# load ea!"#$ co,'o#e#((*a( *olds (*e a((e#&

B!ace d"a$o#al a#d1o! c!oss2sec("o# !ac"#$ co,'o#e#(

)sed (o "#c!ease !"$"d"(3&


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TUBES

T()*) a+) ,/$ca""/ -a#) ! *,))" !+a"-$%$-. ) ca% a"*! (!4) c!-!*$,)

,/)* ! !%# ,)* ! $+) &"a** $% a

%/"!% !+ !"/)*,)+ -a,+$.I% *!-) ! ,() "!)+ c!*, c!%*,+c,$!%

,()+) $* ),)%*$4) *) ! &- a-!!

!+ ,$-)+ &-=!")* ,$)# ,!&),()+ ,!

!+- ,() *ca!"# +a-).


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WOR4ING 5LATFORM BOARDS


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WOR4ING 5LATFORM BOARDS

T()*) a+) -a#) ! *)a*!%)# ,$-)+ a%# a+)*)# ,! +!4$#) a !+$%& *+ac) !+ *ca!"#

*)+*. T() !a+#* a+) *a""/ +!,)c,)# a, ,()

)%# / -),a" "a,)* (!! $+!%* !+ %a$" "a,)*.

I ,() *+ac) !% ($c( ,() a*) $* ,! )

"ac)# $* *!,5 *!") !a+#* a+) "ac)# )%)a,(,() *ca!"#$%& ,! +)4)%, *$%$%&.

SCAFFOLD


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SCAFFOLDBOARDS FI6ED

ON TRANSOMS

COU8LERS


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COU8LERS

T*ese a!e %"(("#$s (*a( a!e )sed (o *old (*e ()es (o$e(*e!

+"(*o)( (*e )se o% d!"ll"#$ so as (o ease asse,l3 a#dd"sasse,l3& T*e3 a!e o% 7 as"c (3'es:

F"0ed co)'le!s )sed (o co##ec( (+o ()es a( !"$*(a#$les (o e#s)!e s(a"l"(3 +*"le '!o8"d"#$ s(!)c()!al

s(!e#$(* (o (*e %!a,e9 S+"8el co)'le!s (*ese *a8e a s+"8el '"# co##ec("#$

eac* *al% o% a co)'le! e#al"#$ (*e -o"#"#$ o% sca%%old()es a( a#3 a#$les +*"le '!e8e#("#$ ,o8e,e#( o% (*e

%!a,e9 a#d 5)(lo$ co)'le!s a!e )sed %o! co##ec("#$ sca%%old ()es

a#d ,e,e!s e&$& %o! %"0"#$ *a#d!a"ls o! %"0"#$ ')(lo$ as*o!( *o!"/o#(al 'ole '!o-ec("#$ %!o, a +all; (o a le$e!&

FI6ED CO.5LERS


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FI6ED CO.5LERS

SWIVEL CO.5LERS


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(a, ,! C!%*$#)+ $% Sca!"# D)*$&%

,/) ! *ca!"# +)6$+)#

!%#a,$!%* $%c"#$%& &+!%# c!%#$,$!%*

,() )$&(, )a+$%& caac$,/ ! ,() *+ac) ()+) ,() *ca!"# $* ,!) )+)c,)#

#)a# "!a#* ).&. +)*",$%& +!- ,() *$?) a%# )$&(, ! ,() *ca!"#

"$4) a%# )%4$+!%-)%,a" "!a#* ).&. $%# "!a#*

c!%,a$%-)%, *()),$%&

*!+,$%& *,+c,+)*

)%,+/ a%# )$,

,/$%& a%# a%c(!+*F()+) a%c(!+* $"" ) "ac)# !% ,() *!+,$%&*,+c,+) a%# ,/)* ! a%c(!+*,! ) *)#

+ac$%&5 a%#

E#&) +!,)c,$!%.


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HAARDS O7 SCA77OLDING

7a""*E")c,+!c,$!%

7a""$%& !)c,*

Sca!"# c!""a*)

Ba# "a%$%&

E6$-)%, a$"+)

8ROTECTIVE SYSTEMS USED ITH


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8ROTECTIVE SYSTEMS USED ITHSCA77OLDING

7a"" a++)*, (a+%)** Sa),/ Ha+%)**

I%#*,+$a" *a),/ ()"-),* Ha+# (a,*

Sa),/ !!,)a+!!,* Ha%# +!,)c,$!% &"!4)*

H)a+$%& +!,)c,$!% )a+ -*"&*

E/) +!,)c,$!% *a),/ &"a**)*

H$&( 4$*$$"$,/ 4)*,* +)")c,$4) 4)*,*

Ca%!$)*%),*

Sc+))%*a%)"*

Ba++$ca#)*


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B!#/ )a+


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CONNECTING DEVICES


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SCA77OLD USE IN ENYA

T()+) $* $#)*+)a# *) ! ,$-)+*ca!"#$%& $% )%/a ($c( c!-+$*)*

-a$%"/ ! G- 8!")*.

T($* $* -a$%"/ )ca*) ! c!*,

c!%*$#)+a,$!%*.


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T() a"-$%- a%# *,))" *ca!"# */*,)-**)# $% )%/a a+) *!+c)# -a$%"/ +!-

Da$5 C($%a a%# "!ca""/.

C="!c *ca!"#$%& $* "!ca""/ *!+c)# a%# $*c!--!%"/ *)# !+ -",$ *,!+)/

c!%*,+c,$!% +!)c,* #) ,! ,()$+ ($&( "!a#)a+$%& caac$,/.

T()+) $* a"*! *) ! ,() A=+a-) *ca!"#

*!+c)# +!- C($%a , $, $* %!, *)# !+()a4/ "!a#* )ca*) ! $,* "! "!a# )a+$%&caac$,/.


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D.BAI SO.RCED

4EN


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4EN


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CHINESE SO.RCED:


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M!*, c!%,+ac,!+* $% )%/a +))+

,! *) ,$-)+ *ca!"#5 )ca*),()$+ *a&) a""!* !+ "!)+ "!%&

+% !)+a,$%& c!*,*.

B)ca*) ! $%c$#)%,* ! ,(),5

c!%,+ac,!+* (a4) %#)+&!%)*)4)+) "!**)* +!- ,(), ! ,()

*,))" a%# a"-$%- c!-!%)%,*.


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THAN YOUJ

scaffolding - lecture 2

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