METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
METHOD STATEMENT BS STANDARD
PROJECT: WORK CLIENT
: :
SCAFFOLDING WORK
Page 1 of 32
Page 1 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
INDEX
3
INTRODUCTION
4
SCOPE OF WORK
5
MANAGEMENT GUIDANCES
6 APPLICABLE REGULATIONS REGULATIONS AND STANDARDS STANDARDS 7
SCAFFOLDING DESIGN
8
SCAFFOLDING MATERIAL
9
GENERAL ERECTION PROCEDURES
! SCAFFOLDING T"PES INSPECTION # SCAFFOLDTAG S"STEM 3 MODIFICATION 4 HA$ARDS DURING ERECTION % USE AND DISMANTLE OF SCAFFOLD 5 SAFET" SIGNS AND BARRIERS 6 PRECAUTIONS DURING ERECTION AND DISMANTLE 7 RE&UEST TO ERECT AND DISMANTLE B" USER ' CLIENT( LE)EL OF URGENC" 6 COMPETENCE AND TRAINING
Page 2 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
INTRODUCTION
This METHOD STATEMENT is specially prepared for the Provision of Specialist Scaoldin! Services for the P"O#ECT to $e %nderta&en $y SCA''OLDIN( CONST")CTION *SC+
#
SCOPE OF WORK
SCA''OLDIN( CONST")CTION *SC+ has $een invited to $id and %pon s%ccessf%l a,ard if the Contract ,ill $e en!a!ed to provide Site -ide Scaoldin! Services for the a$ove./entioned Pro0ect1 The Scope of ,or& shall $e s%//ari2ed $elo,:. iii+ tools3 PPE
Provision of s%icient scaoldin! /aterials3 accessories3 la$or3 hand and S%pervision to /eet the pro0ect site scaoldin! re4%ire/ents1
iii+ "esponsi$le for the plannin!3 desi!n3 erection3 alteration3 inspection and dis/antle of any scaoldin! ,or& to 5ritish Standard as re4%ired to provide safe access and 6778 fall protection in connection to all constr%ction ,or&s and other related ,or&s of the pro0ect1 3
MANAGEMENT GUIDANCES SCA''OLDIN( CONST")CTION *SC+ shall . /andatory
iii+ Ens%re that all its e/ployees adhere to the reco!ni2ed standard or code of practice ,ith respect to the selection3 erection and possi$le /odi9cations of scaolds1 iii+ iii+ Scaoldin!
Appoint f%lly trained Scaold S%pervisors1 Provide proper trainin! for its scaolders and ens%re that the S%pervisor properly /onitors the perfor/ance of scaffolders1
iii+ Provide ade4%ate personnel protective e4%ip/ent *PPE+ s%ch as !loves3 coveralls3 head protection3 safety foot.,ear3 harnesses3 lifelines3 safety nets3 and ,hen ,or&in! a$ove
,ater3 life 0ac&ets1 Ens%re the proper %se of all personal protective e4%ip/ent *PPE+ provided1 iii+ Carry o%t re!%lar 4%ality control and safety chec&s on scaffoldin! /aterials and on erected scaolds1 iii+ Adhere to the ,ritten hand.over proced%res and /aintain !ood co//%nication ,ith the scaffoldin! S%pervisor at all ti/es 1
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METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
iii+ Ens%re safe dis/antlin! of scaoldin! and site clearance %pon co/pletion of the 0o$1 CLIENT shall: iii+ Ens%re at all ti/es that scaoldin! is safely %sed $y %sers and not /odi9ed ,itho%t a%thori2ation1 iii+ Ens%re that %sers report defects and %na%thori2ed /odi9cations of the scaoldin! to the scaoldin! s%pervisor1 iii+ Ens%re that %sers infor/ the scaoldin! s%pervisor ,hen scaoldin! is no lon!er re4%ired and is availa$le for dis/antlin! 1
4
APPLICABLE REGULATIONS AND STANDARDS
i+ Scaolds >
5S EN 6;66.6: 77< =Te/porary ,or&s e4%ip/ent > Part 6: Perfor/ance re4%ire/ents and !eneral desi!n? 1
iii+ 5S EN <@: 776 =Loose steel t%$es for t%$e and co%pler scaolds > technical delivery conditions?1 iii+ 5S EN 6<6.6:6@@< =Ladders Part 6 Speci9cation for ter/s3 types3 f%nctional si2es?1 iii+
5S EN 6<6.:6@@< =Ladders. re4%ire/ents3 testin!3 /ar&in!?1
iii+
5S;: Speci9cation for Ti/$er Scaffold 5oards1
iii+ 5SB@: Code of Practice for te/porarily installed s%spended scaolds and access e4%ip/ent1
Page 4 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
5
SCAFFOLDING DESIGN
The access and ,or&in!s scaolds listed in Ta$le .63 ,ith their constr%ction criteria3 shall $e desi!ned $y SCA''OLDIN( SCA''OLDIN( CONST")CTION CONST")CTION *SC+ in accordance ,ith appropriate 5S Standards1 All other scaolds3 and all scaolds ,hich are the s%$0ect of a speci9c %ser re4%est o%tside the pre. speci9ed for/at of Ta$le 63 shall $e desi!ned $y SCA''OLDIN( CONST")CTION CONST")CTION *SC+ to the re4%ire/ents and approval approval of client1
Ta$le 6 > Loads and Di/ensions for T%$es and 'ittin!s Scaold T? - >*+,-./
ery ery li!ht d%ty independen t ery ery li!ht d%ty independen t
U> - >*+,-./
S*+,-./ M+0122 M+0122 .-+/1 2 -.-+/ >+*1 2# ;-<1 .+=-82> =; B &!1 6 ,or&in! >=+/+/> platfor/ 1 /1 tool1 6B7 &!1 ,or&in! platfor/ /aterials
Inspection access and paintin! Po,er cleanin!3 paintin!3 1 /1 li!ht 77 &!1 ,or&in!tool1 en!ineerin! platfor/s (eneral Li!ht 6at very li!ht /aterials p%rpose en!ineerin!3 d%ty independen e1!1 ,eldin! B7 &!1 ,or&in! t or platfor/s electrical 6at very li!ht Heavy d%ty d%ty independen t To $e stated on o n desi!n dra,in!s
T?1*+. 0+2.> +? 6 /an No
/en No
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METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
3
SCAFFOLDING MATERIAL Scaold Materials Standards
M+=1+.> S=+/+/ %sed1 )sed Steel T%$e 66<@
A//1=1-+. R@12=> Only (alvani2ed t%$e to $e 5S Part 6
to and
t%$es to $e inspected
re!%larly cleaned1 All t%$es $efore
%sed
for corrosion and
condition3
!eneral to $e discarded1
5%tt ,elded
t%$es
/ay
$e
%sed on 'ittin! has $een and proced%re
5S 66<@ Part 6
condition that the ,eldin! carried o%t to an approved All
9ttin!s
to
$e
eFa/ined $efore %se for da/a!e and ,ear1 Da/a!ed or
,orn fittin!s
to $e discarded1 No heat to $e applied to 9ttin!s1
Movin!
parts
to
$e l%$ricated1 To $e clean and free of nails3 free of
,arpin!
and
si!ni9cant
crac&s1 Not to $e painted1
-hen scaoldin! is erected in areas ,here hi!h levels of radiated heat are %navoida$le enco%ntered3 e1!1 ,here hi!h te/perat%re pipe ,or& is in close proFi/ity3 ti/$er scaold $oards /ay $e eFposed to the ris& of $%rnin! or charrin!1 In these circ%/stances3 the %se of pressed steel sta!in! $oards is an accepta$le alternative1 N-=: Al%/ini%/ t%$es3 fittin!s3 co/ponents and proprietary syste/ fra/es are v%lnera$le in the case of 9re and are potentially spar& prod%cin!3 If they are to $e
%sed ,here Ga//a$le at/ospheres co%ld $e present d%rin! nor/al operations3 their %se shall $e controlled the ,or& per/it syste/ and preca%tions speci9ed to ens%re a safe at/osphere is provided1 If a safe at/osphere cannot $e relia$ly provided3 e4%ip/ent /an%fact%red fro/ steel shall $e %sed1
7
GENERAL ERECTION PROCEDURES
There are /any types of scaoldin! that /ay $e erected on a constr%ction site3 so/e of ,hich are doc%/ented in this Code of Practice: The physical environ/ent of the ,or& area ,ill deter/ine the type of scaffold to $e erected3 ho,ever3 there are safety preca%tions and reco//ended ,or& practices co//on to all scaoldin!1
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METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
+B
P.+1
In order to satisfy the re4%ire/ent of personnel intendin! to ,or& fro/ the ,or&in! platfor/3 the scaffolder ,ill need to liaise ,ith those personnel3 the /aFi/%/ load li&ely to $e placed on the ,or&in! platfor/3 the area of ,or&in! platfor/ necessary to carry o%t the ,or&3 positionin! of access ladders and a co/forta$le ,or&in! hei!ht for the ,or&in! platfor/ ,ill all need to $e disc%ssed1 Any ha2ards involved ,ith the erection shall $e identi9ed at the plannin! sta!e and appropriate preca%tions ta&en1 ProFi/ity to live electrical e4%ip/ent or interface pro$le/s /ay need to $e !iven consideration1
B+*1 T1>
All scaolds shall $e $raced and tied to for/ a ri!id sta$le str%ct%re1 There are /ini/%/ re4%ire/ents for $racin! and tyin! scaold $%t these is a !%ide only to the scaolder1 A priority concern of the scaolder is to provide a safe ,or&in! platfor/ free fro/ /ove/ent1 If this priority is not satis9ed on co/pletion of the /ini/%/ re4%ire/ents for $racin! and tyin!3 the scaolder is $o%nd to incl%de s%ch eFtra ties and $races as in needed 1 1
B+*>
-ith the eFception of to,er and sin!le $ay scaolds3 face $races shall $e provided that are attached to the eFternal ro, of standards of the scaold as close to the 0%nction of the led!er and standard as is practica$le and eFtend to the f%ll len!th and hei!ht of the scaoldin!1 Transverse $races shall $e provided that are attached dia!onally in every lift 0oinin! the internal and eFternal standards at $oth ends of the scaold and at intervals not eFceedin! B /etres1 To,er and sin!le $ay scaoldin! shall $e provided ,ith $races dia!onally in every face in every lift of the scaold1 11
T1>
Ties shall $e provided that are attached $y @7 co%plers to the o%tside and inside standards or led!ers as close as possi$le to the 0%nction of led!ers and standards1 They shall $e located hori2ontally no f%rther than one $ay fro/ the ends and at intervals not eFceedin! < $ays1 They shall $e located vertically in the 9rst lift and at intervals not eFceedin!
/etres1 *
G+/ R+1.>
All ,or&in! platfor/ a$ove a hei!ht of /etres or at any hei!ht less than /etres ,here a ha2ard s%ch as starter $ars eFists3 shall $e provided ,ith do%$le !%ard rails and &ic&$oards to all open ed!es1 The !%ard rails shall consist of a top rail erected 6 /etre a$ove the ,or&in! platfor/ and a /idrail erected /id,ay $et,een the top rail and the ,or&in! platfor/1
Page 7 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
ic&$oards shall eFtend a /ini/%/ of 77// a$ove the ,or&in! platfor/ and shall $e sec%red 9r/ly to the standards1 P%ncheons /ay $e 9Fed to the !%ard rails to facilitate the sec%rin! of &ic&$oards if necessary1 /
S*+=+>
)pon co/pletion of the scaoldin! the scaolder shall aiF a scaold co/plete Scata! to the $ase of the scaold at the point of access1 The Scata! shall display the follo,in! infor/ation Location "ef1 No1 Date erected "e4%ested $y 5%ilt $y 'ore/an Si!nat%re Safe -or&in! Load D%rin! erection3 alteration or dis/antlin! of the scaoldin! a scaold inco/plete si!n of scata! shall $e displayed1 Personal other than scaolders are not per/itted to access a scaold ,hile the inco/plete si!n or scaffta! is displayed1
D1>2+=.1
Prior to any dis/antlin! of scaffoldin! ta&in! place and d%rin! the dis/antlin! proced%re3 the follo,in! safety preca%tions shall $e o$served: The scata! is to $e chan!ed fro/ JCo/pleteK stat%s to JInco/pleteK stat%s1 The area at !ro%nd level is to $e $arricaded ,ith !eneral p%rpose $%ntin! and a si!n displayed statin! JDan!er > Men -or&in! A$oveK All plan&s are to $e t%rned to re/ove d%st and dirt that /ay ca%se eye in0%ries1 Care shall $e ta&en to ens%re personnel are not ,or&in! $elo, ,hen plan& cleanin! is ta&in! place1 All hori2ontal t%$es3 once re/oved3 shall $e t%rned to the vertical to re/ove !rit and /etal Ga&es fro/ inside the t%$es to avoid eye in0%ries d%rin! lo,erin! operation1 8
T"PES OF SCAFFOLD
In all cases3 the follo,in! scaold types are to $e s%$0ect to specific desi!n $y SCA''OLDIN( CONST")CTION *SC+ ,hen the client /ay re4%ire to approve in detail prior to erection: Independent T%$e 'ittin! Scaoldin! 1
Independent Mod%lar Scaoldin!1 To,er Scaoldin!.T%$e 'ittin! 1 Drop Scaoldin!1 Mo$ile Scaoldin!.T%$e fittin!1 5irdca!e Scaffoldin!1 Cantilever Scaffoldin!1 Li!ht D%ty S%spended Sta!es
Page 8 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
8 +
INDEPENDENT TUBE FITTING SCAFFOLDING D1=1-
An independent scaold consists of t,o ro,s of standards3 0oined lon!it%dinally $y led!ers and transversely $y transo/s and or p%tlo!s and is $raced and tied to for/ a ri!id sta$le str%ct%re1
B+? S1> Heavy d%ty Medi%/ d%ty Li!ht d%ty
*
61;/ F 61B/ 1/ F 61B/ <17/ F 61B/
L-+/1>
One ,or&in! platfor/ in a $ay of independent t%$e and 9ttin! scaoldin! shall not $e loaded in eFcess of follo,in! Heavy d%ty Medi%/ d%ty Li!ht d%ty
B &! <7 &! 6;7 &!
The load to $e placed on the ,or&in! platfor/ is to $e distri$%ted evenly over the area of the ,or&in! platfor/ $%t any concentrated loadin! is to $e $orne $y the standards1 No /ore than t,o ,or&in! platfor/s are to $e f%lly loaded per $ay $%t this n%/$er /ay $e increased provided the total loadin! per $ay does not eFceed the total of t,o f%lly loaded $ays1 /
E*=1-
All !ear to $e %sed in the erection of an independent scaffold ,ill $e laid o%t nearly and sorted into si2es for easy access1 It ,ill $e necessary to erect !eneral p%rpose $%ntin! aro%nd the !ear so as not to create a trip ha2ard for other personnel1 The area to $e scaffolded ,ill have !eneral p%rpose $%ntin! erected at !ro%nd level and a si!n stratin! Jca%tion > /en ,or&in! a$oveJ displayed pro/inently to protect personnel fro/ ha2ards involved in the erection of the scaold1 The s%rface to s%pport the scaold sho%ld $e chec&ed to ens%re it is even and free fro/ o$str%ctions1 If re4%ired3 level the !ro%nd s%rface at the !ro%nd s%rface at the point?s standards are to $e located1
'or !ro%nd s%rfaces other than concrete sla$s3 ti/$er sole plates are to $e placed at the re4%ired spacin! for the scaold to $e erected3 i1e1 heavy d%ty3 /edi%/ d%ty or li!ht d%ty1 5ase plates of /ild steel ,ith an area no less than 717B/ F // thic& are to $e positioned on the sole plate1 If the scaold is to $e erected on a concrete sla$3 the $ase
Page 9 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
plates /ay $e placed directly on that s%rface ,itho%t the %se of ti/$er sole plate1 The standards /ay then $e placed on the $ase plates as re4%ired1 Te/porary ra&ed t%$es sho%ld $e %sed to pl%/$ the 9rst t,o standards and /ay $e re/oved at s%ch ti/e as the scaold is self s%pportin! thro%!h the 9Fin! of addition /e/$er1 Ca%tion /%st $e o$served at this $ase lift of the scaold to ens%re 0oins do not occ%r in ad0acent standards in the sa/e lift and in ad0acent led!ers in the sa/e $ay1 Appropriate t%$e si2es are selected at the plannin! sta!e to satisfy these criteria1 All hori2ontal /e/$ers are to $e /ade level and all standards /ade pl%/$ ,ith the %se of an acc%rate spirit level 1 On co/pletion of the $ase lift a t,o $oard ,ide platfor/ is to $e provided to ena$le scaolders to erect the neFt lift1 The /ini/%/ ,or&in! platfor/ ,idth for %se $y scaolders to erect all additional lifts is t,o $oards1 The ,or&in! platfor/ to $e provided for other personnel at the re4%ired hei!hts /%st confor/ to the standards set do,n in Section 1 D%rin! the erection of the scaold3 and ,hile any alterations to the scaold are $ein! carried o%t3 a Jscaold inco/pleteK si!n is to $e displayed pro/inently at the $ase of the scaold1 On co/pletion of the scaold3 a Jscaold co/pleteK si!n is to $e displayed pro/inently at the $ase of the access to the scaold3 and in a /anner so as not to ca%se in to $e dislod!ed $y any inadvertent action1 8#
INDEPENDENT MODULAR SCAFFOLDING
+
D1=1-
Mod%lar scaoldin! consists of pre.fa$ricates /e/$ers that loc& to!ether %sin! a variety of patented 9Fin! points located at approFi/ately 71B / intervals on the standards 1
B+? S1>
Standard spacin! for /od%lar scaoldin! /ay vary fro/ those set do,n for t%$e and 9ttin! scaffoldin! provided approval has $een !ranted $%t the Depart/ent of Occ%pational Health Safety and -elfare An eFa/ple of this variation is the 1/ transo/s
availa$le in the ,ed!e loc& syste/ that ena$le the scaolder to erect 1/ F 1/ /edi%/ d%ty $ays1 The standard spacin! is li/ited to the follo,in!:. Heavy d%ty Medi%/ d%ty Li!ht d%ty
Page 10 of 32
61;/ F 61B/ 1/ F 61B/ <17/ F 61B/
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
*
L-+/1>
One ,or&in! platfor/ in a $ay of independent /od%lar scaold shall not $e loaded in eFcess of the follo,in! Heavy d%ty B &! Medi%/ d%ty <7 &! Li!ht d%ty 6;7 &! The load to $e placed on the ,or&in! platfor/ is to $e distri$%ted evenly over the area of the ,or&in! platfor/ $%t any concentrated loadin!s is to $e $orne $y the standards1 No /ore than t,o ,or&in! platfor/s are to $e f%lly loaded per $ay $%t this n%/$er /ay $e increased provided the total loadin! per $ay does not eFceed the total of t,o f%lly loaded platfor/s1
/
E*=1-
All !ear to $e %sed in the erectin of independent /od%lar scaoldin! ,ill $e laid o%t neatly and standards sorted into si2es for easy access1 (eneral p%rpose $%ntin! ,ill $e erected aro%nd the !ear so as not to create a trip ha2ard for other personnel1 The area to $e scaolded ,ill have !eneral p%rpose $%ntin! erected at !ro%nd level and a si!n statin! Jca%tion > /en ,or&in! a$oveK displayed pro/inently to protect personnel fro/ ha2ards involved in the erection of the scaold 1 The s%rface to s%pport the scaold sho%ld $e chec&ed to ens%re it is even and free fro/ o$str%ctions1 If re4%ired3 level the !ro%nd s%rface at the point?s standards arte to $e located1 'or !ro%nd s%rfaces other than concrete sla$s3 ti/$er sole plates are to $e placed at the re4%ired spacin! for the scaold to $e erected3 i1e1 heavy d%ty3 /edi%/ d%ty and li!ht d%ty1 Ad0%sta$le $ase plates or Jscre, 0ac&sK are to $e positioned on the sole plates to acco//odate the standards1 If the scaold is to $e erected on a concrete sla$ the ad0%sta$le $ase plates /ay $e placed directly on that s%rface ,itho%t the %se of ti/$er sole plates1 Ca%tion /%st $e o$served at this $ase lift of the scaold to ens%re 0oins do not occ%r in ad0acent standards in the sa/e lift1 Appropriate standard si2es are selected at the plannin! sta!e to satisfy these criteria1
Le!ers3 transo/s and $races are 9Fed to the standards %sin! the patented 9Fin! /ethods and each /e/$er ,ill $e /ade level %sin! the ad0%sta$le $ase plate and an acc%rate spirit level1 5racin! is to $e installed Jpro!ressivelyK at the re4%ired locations3 not as an aftertho%!ht at the co/pletion of the scaffold1 Ties sec%rin! the scaffold to the $%ildin! pr str%ct%re as set do,n in Sched%le of Occ%pational Health3 Safety and -elfare "e!%lation 6@;; are to $e installed as an inte!ral part of each lift 1
Page 11 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
On co/pletion of the $ase lift3 a to, $oard ,ide platfor/ is to $e provided to ena$le scaolders to erect the neFt lift1 The /ini/%/ ,or&in! platfor/ ,idth for %se $y scaolders to erect all additional lifts is t,o $oards1 The ,or&in! platfor/ to $e provided for other personnel at the re4%ired hei!ht or hei!hts /%st confor/ to the standards set do,n in Section 1 -here hop.%p $rac&ets are %sed as an eFtension of the ,or&in! platfor/ ,idth3 they /%st $e restrained fro/ rotation $y approved tie $ars1 A t,o $oard hop.%p $rac&et ,ill not $e %sed to acco//odate one $oard1 D%rin! the erection of the scaold and ,hile any alterations to the scaold are $ein! carried o%t3 a Jscaold inco/pleteK si!n is to $e displayed pro/inently at the $ase of the scaold1 83
TOWER SCAFFOLDING TUBE FITTING1
+
D1=1-
A to,er scaoldin! consists of fo%r 0oined to!ether lon!it%dinally $y led!ers and transversely $y transo/s andor p%tlo!s and is $raced and tied to for/ a ri!id sta$le str%ct%re1 A to,er is $asically fo%r parallel tr%sses on end and 0oined in the for/ of a $oF to s%pport a ,or&in! platfor/1
B+? S1> The /ini/%/ $ase di/ension of a to,er is 61/ F 61/1 The /aFi/%/ $ase di/ension of a to,er is <17/ F 1/1
*
H1=
The /aFi/%/ hei!ht of a free standin! to,er is three ti/es the least $ase di/ension /eas%red centre to centre of the standards1 The /aFi/%/ hei!ht of a tied to,er is B /eters1 The /aFi/%/ hei!ht of a !%yed to,er is 6B /eters1 /
L-+/1>
Not /ore than one ,or&in! platfor/ shall $e erected on a to,er scaold altho%!h inter/ediary landin! platfor/s /ay $e erected for access to the ,or&in! platfor/1 The ,or&in! platfor/ on a to,er scaold shall not eFceed the follo,in! loadin!s
Heavy d%ty B &!1 Medi%/ d%ty <7 &!1 Li!ht d%ty 6;7 &!1
Page 12 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
E*=1-
All !ear to $e %sed in the erection of a to,er scaold ,ill $e laid o%t neatly and sorted into si2es for easy access1 It ,ill $e necessary to erect !eneral p%rpose $%ntin! aro%nd the !ear so as not to create a trip ha2ard for other personnel1 The area to $e scaffolded ,ill have !eneral p%rpose $%ntin! erected at !ro%nd level and a si!n statin! Jca%tion > /en ,or&in! a$oveK displayed pro/inently to protect personnel fro/ ha2ards involved in the erection of the scaold1 The s%rface to s%pport the scaold sho%ld $e chec&ed to ens%re it is even and free fro/ o$str%ctions1 If re4%ired3 level the !ro%nd s%rface at the points standards are to $e located1 'or !ro%nd s%rfaces other than concrete sla$s3 ti/$er sole plates are to $e placed at the re4%ired spacin! for the scaold to $e erected3 i1e1 heavy d%ty3 /edi%/ d%ty or li!ht d%ty1 5ase plates of /ild steel ,ith an area no less than 71B/ F // thic& are to $e positioned on the sole plates1 If the scaold is to $e erected on a concrete sla$3 the $ase plates /ay $e placed directly on that s%rface ,itho%t the %se of ti/$er sole plates 1 Te/porary ra&ed t%$es sho%ld $e %sed to pl%/$ the 9rst t,o standards and /ay $e re/oved at s%ch ti/e as the scaold is self s%pportin! thro%!h the 9Fin! of addition /e/$ers1 Ca%tion /%st $e o$served at the $ase lift of the scaold to ens%re 0oins do not occ%r in ad0acent standards in the sa/e lift1 Appropriate t%$e si2es are selected at the plannin! sta!e to satisfy these criteria1 All hori2ontal /e/$ers are to $e /ade level and all standards are to $e /ade pl%/$ %sin! an acc%rate spirit level1 A spreader /ay $e %sed to acc%rately !%a!e the dia!onals of the to,er to ens%re the standards re/ain pl%/$ and prevent Jcor&scre,in!K On co/pletion of the $ase lift a t,o $oard ,ide platfor/ is to $e provided to ena$le scaolders erect the neFt lift1 The /ini/%/ ,or&in! platfor/ ,idth for %se $y scaolders to erect all additional lifts is t,o $oards1 The ,or&in! platfor/ to $e provided for other personnel at the re4%ired hei!ht /%st confor/ to the standards set do,n in Section B1 -hen the span of the p%tlo!s s%pportin! ,or&in! platfor/ eFceed 61B /etres3 they ,ill $e s%pported $y a p%ncheon to a lo,er /e/$er3 or str%tted to lo,er /e/$ers1
D%rin! the erection of the scaold3 and ,hile any alterations to the scaold are $ein! carried o%t3 a Jscaold inco/pleteK si!n is to $e displayed pro/inently at the $ase of the scaold1 On co/pletion of the scaold3 a Jscaold co/pleteK si!n is to $e displayed pro/inently at the $ase of the access to the scaold3 and in a /anner so as not to ca%se it to $e dislod!ed $y any inadvertent action1
Page 13 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
B+*1
Dia!onal face $racin! ,ill $e installed Jpro!ressivelyK on all faces of a to,er scaold1 -here it is not possi$le to install s%ch $racin! d%e to protr%sions fro/ the $%ildin!3 that face ,ill $e tied in the /anner o%tlined in AS6B > 6@1 Dia!onal plan $racin! shall $e installed at every third lift of the to,er scaffoldin! to the f%ll hei!ht of the to,er scaoldin!1
A**>> T-;>
-here the to,er scaoldin! is erected to provide access to a ,or& area a$ove /etres in hei!ht3 the landin! places for the ladders /%st $e f%lly dec&ed *eFcept ,hen access is provided+1 The /aFi/%/ spacin! $et,een landin! places shall $e /etres 1 The platfor/ shall have a safe /eans of access ,hich shall al,ays $e on the narro,est side of the to,er1 Access /ay $e achieved in the follo,in! ,ays: 5y vertical ladders attached internally to the narro, side clear hand and foot holds shall $e provided3 $y $loc&in! pieces if necessary1 -here vertical ladders rise /ore than @ /3 an inter/ediate landin! shall $e provided1 O
O
5y internal stair,ays or inclined ladders1
5y ladder sections inte!ral ,ith the fra/e /e/$ers1 These are to $e cli/$ed fro/ inside the to,er1 "%n!s shall $e no /ore than <77 // apart and the stiles no /ore than B77 // apart1 O
Cli/$in! the to,er $y %sin! the hori2ontal /e/$ers is not per/itted1 -ith a prefa$ricated to,er3 access to a platfor/ /ade of scaold $oards is diic%lt ,hen the to,er is cli/$ed fro/ the inside1 Platfor/ $oards incorporatin! a trapdoor or hatch are therefore preferred1 -ith t%$e and 9ttin! to,er3 scaold $oards /ay $e %sed and the platfor/ constr%cted so that there is a per/anent access openin! ad0acent to the ladder1 This openin! shall $e as possi$le to allo, safe access and provided there is ade4%ate s%pport3 a loose cover /ay $e %sed to protect the openin! ,hile people are on the platfor/1 -ith a t%$e and 9ttin!s steel to,er3 the ladder shall3 ,here possi$le3 $e lashed to the inside1 If it has to $e lashed to the o%tside3 the access openin! in the
!%ard rail shall $e protected $y a hin!ed section or so/e other e4%ally eective /eans1 -ith all other to,ers3 the ladder shall $e 9Fed on the inside1 Ladders shall never $e placed on the platfor/ to eFtend the hei!ht of the to,er3 nor shall $e leaned a!ainst the side of a to,er1 Tools and heavy loads shall not $e carried $%t ha%led %p or lo,ered do,n $y a person on the platfor/ ,ithin the con9nes of the to,er1
Page 14 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
84
DROP SCAFFOLDING
+B
D1=1-
A drop or han!in! scaffold consists of t,o or /ore ro,s of standards3 0oined lon!it%dinally $y led!ers and transversely $y transo/s and p%tlo!s and $raced to for/ a ri!id sta$le str%ct%re that is sec%red to overhead s%pports of s%icient capacity to ,ithstand any load li&ely to $e i/posed on s%ch overhead s%pports1
A.1*+=1-
A drop scaold is erected ,here it is not possi$le or it is not practica$le to erect a scaold fro/ the !ro%nd1 *
D- T S+*1
The /aFi/%/ spacin! of drop t%$es s%pportin! the ,or&in! platfor/ of han!in! scaoldin! shall $e as for /edi%/ d%ty and li!ht d%ty independent t%$e and 9ttin! scaold1 Medi%/ d%ty Li!ht d%ty
1/ F 61B/ <17/ F 61B/
Any ,or& to $e perfor/ed fro/ the ,or&in! platfor/ of a drop scaold re4%irin! the drop scaold to $e erected to heavy d%ty speci9cations and shall only $e erected ,ith prior approval1 /
M+0122 D-
The /aFi/%/ distance that a ,or&in! platfor/ /ay $e erected fro/ overhead s%pports is three lifts or siF /etres1 Sin!le len!ths of t%$e only3 are to $e %sed as drop t%$es3 there are to $e no 0oins or Jdroppin! a!ainK fro/ led!ers or transo/s1
L-+/1>
One only ,or&in! platfor/ per $ay of drop scaoldin! shall $e loaded at any one ti/e and s%ch ,or&in! platfor/ shall not $e loaded in eFcess of the follo,in!: Medi%/ d%ty Li!ht d%ty
<7 &!1 6;7 &!1
E*=1-
All !ear to $e %sed in the erection of a han!in! scaold ,ill $e laid o%t nearly and sorted into si2es for easy access1 The physical environ/ent of the area to $e scaolded ,ill deter/ine ,hether the !ear to $e %sed in the erection of the scaold ,ill $e passes %p or
Page 15 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
passed do,n1 This decision ,ill $e /ade d%rin! the 0o$ safety analysis disc%ssion $et,een the ,or& s%pervisor and the licensed scaolders1 Prior to co//ence/ent of ,or&3 the area at !ro%nd level $eneath the proposed scaold ,ill $e $arricaded ,ith !eneral p%rpose $%ntin! and a si!n displayed pro/inently statin! > JDan!er > Men -or&in! A$oveK1 All !ear to $e %sed in the erection of the scaold ,ill have !eneral p%rpose $%ntin! erected aro%nd the stora!e area to prevent trip ha2ards to other personnel1 i+ G1/ M> >/ +> O+/ S-=>
(rid /esh /ay $e %sed as an overhead s%pport for drop t%$es1 An approved closed eye $rac&et ,elded to the end of the scaold t%$e shall $e retained in the !rid /esh $y a /ild steel pin 7// in dia/eter and 77// in len!th1 The pin shall $e prevented fro/ /ove/ent or dislod!e/ent thro%!h inadvertent action $y $ein! lashed sec%rely to the !rid /esh ,ith a s%ita$le 9re retardant lashin!1 Prior to raisin! or lo,erin! the drop t%$es into position a short t%$e approFi/ately <77// shall $e 9Fed ,ith a @7 co%pler to the lo,er end of the drop t%$es1 This short t%$e affords the scaolder a de!ree of co/fort ,hen erectin! the initial led!ers and transo/s and shall not $e s%$stit%ted $y a @7 co%pler1 Scaolders are per/itted to access the lo,er end of the drop t%$e $y slidin! so,n the t%$e to the JTK piece or $y ,al&in! the steel $ea/s if the for/er is not practica$le 1 It is para/o%nt for the scaolder to sec%re his lanyard to the drop t%$e prior to descendin! to the JTK piece1 The lanyard ,ill $e !iven t,o f%ll t%rns on the drop t%$e and sec%red $ac& to the second $elt rin!3 and shall only $e re/oved to relocate to another /e/$er1 As there ,ill $e t,o scaffolders involved in fiFin! the 9rst lift3 it ,ill not $e necessary for either to traverse the lon!it%dinal spacin! $et,een the drop t%$es1 This ne!ates the practice of /ovin! a$o%t d%rin! the initial erection sta!e ,itho%t anti.fall protection1 As early as is practica$le the ,or&in! platfor/ plan&s and !%ard rails shall $e installed and only ,hen this is co/plete /ay anti.fall protection $e re/oved1
The nat%re of the overhead s%pports ,ill ca%se the scaold to s,ay considera$ly and /%st $e eli/inated as early as possi$le $y $racin! all faces of the scaold and ,here possi$le3 $y the installation of ties1 S%$se4%ent lifts /ay $e installed in the scaoldin! at /aFi/%/ spacin! of /etres and are erected as for independent t%$e and 9ttin! scaffoldin!1 -here the scaffolder is in a stationary position d%rin! the erection of s%$se4%ent lifts3 and !%ard rails are not provided3 he ,ill sec%re his lanyard to a /e/$er of the scaold1 Access shall $e provided to the ,or&in! platfor/ via a ladder or ladders placed inside the drop scaffold1 -hen /ore than one ladder is providin! access to the ,or&in! platfor/ the landin! place shall $e f%lly dec&ed eFcept ,here access is provided thro%!h the dec&in! 1
Page 16 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
The !ap in the dec&in! shall $e 9tted ,ith !%ard rails and a s,in! rail to de9ne the open ed!e or an approved trapdoor1 -here it is not practica$le to provide access to the ,or&in! platfor/ via ladders thro%!h the drop scaold3 alternative access ,ill $e provided1 Personnel re4%ired to ,or& fro/ the ,or&in! platfor/ are not to placed in a ha2ardo%s sit%ation to access the ,or&in! platfor/1 ii+ B+2> >/ +> O+/ S-=> Str%ct%ral $ea/s provide eFcellent opport%nities for overhead s%pports for drop scaoldin!1 P%rpose /ade $ea/ cla/s only are to $e %sed to loc& t%$es onto or into JIK $ea/s1 T%$es /ay $e placed a$ove or positioned inside the ,e$ of t,o parallel $ea/s1 In all cases they ,ill $e loc&ed in position %sin! $ea/ cla/ps1 Drop t%$es are 9Fed to the hori2ontal t%$es that are 9Fed to the $ea/s %sin! inverted @7 co%plers and a chec& 9ttin! positioned i//ediately ad0acent to and a$ove that 9ttin!1 In so/e cases it /ay $e necessary to $%ild te/porary platfor/s to reach the neFt $ea/ to $e %sed as an overhead s%pport1 Te/porary platfor/s can $e sp%rred $ac& to eFistin! /e/$ers to provide access to previo%sly inaccessi$le $ea/s1 The scaolder sho%ld al,ays $e prepared to erect te/porary accesses to eli/inate dan!ero%s ,or& practices1 Scaolders are not assessed on their a$ility to ta&e ris&s $%t their a$ility to perfor/ their d%ties in a safe and eicient /anner1 iii+ P-> M+/ S*+,-./ T O+/ S-=> - D- S*+-./11 -here str%ct%ral /e/$ers are of ins%icient capacity to ,ithstand the forces i/posed on the/ $y a drop scaold or ,here there is no str%ct%re s%ita$le as an overhead s%pport3 a str%ct%re /ay $e erected %sin! scaold t%$e1 This in$oard restraint /%st $e desi!ned and erected to ,ithstand three ti/es the load li&ely to $e i/posed on the o%t$oard pro0ection of the needles1 The o%t$oard /o/ents are to $e calc%lated as $ein! i/posed at the 9Fin! point of the o%tside standard to the needle1 The in$oard str%ct%re is erected ,ith the needles pro0ectin! the re4%ired
distance fro/ the f%lcr%/ point and the p%rpose /ade co%nter,ei!hts positioned the re4%ired distance in$oard fro/ the f%lcr%/ as per the calc%lations1 The co%nter,ei!hts ,ill have their /ass clearly sta/ped on the/ and loc&ed onto the standard so as not to $eco/e dislod!ed1 Te/porary tension /e/$ers shall $e installed fro/ the f%lcr%/ to the needles to eli/inate any $endin! of the needles %nder load1 A /ini/%/ of t,o $oards ,ill no, $e positioned on the needles to aord the scaolder a de!ree of co/fort ,hile 9Fin! the drop t%$es and %nder slin!in! the led!ers1
Page 17 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
Prior to any ,or& co//encin! on the o%t$oard section of the scaold the scaolder ,ill sec%re his lanyard to the f%lcr%/ or other s%$stantial anchora!e1 )nder no circ%/stance is ,or& to co//ence o%t$oard3 ,itho%t anti.fall protection1 All per/anent tension /e/$ers are to $e in place and chec& 9ttin!s 9Fed appropriately $efore descendin! the drop t%$es to the JTK pieces1
D1>2+=.1 D- S*+,-./1
-hen dis/antlin! a drop scaold the scaolder is to co//ence at the top lift1 This /ethod ,ill facilitate the re/oval of lon! t%$e $e 9Fed to sec%re anchora!es at all ti/es and only re/oved to relocate to another /e/$er1 The scaold sho%ld endeavo%t to re/ove !%ard rails pro!ressively on a /%ltiple $ay drop scaold1 This practice ,ill ena$le a section of the lift to re/ain intact to pass the $%l& of the !ear %p1 -hen all /e/$ers of the scaoldin! have $een re/oved the scaolders ret%rn to the overhead s%pports $y cli/$in! %p the drop t%$es1 Te/porary tension /e/$ers are a!ain 9Fin! to the needles and f%lcr%/ to eli/inate nay $endin! eect and the re/ainder of the scaold /ay $e dis/antled 1
G+. S+=? P*=1->
There are so/e !eneral safety !%idelines that /%st $e considered ,hen erectin! or dis/antlin! drop scaoldin! -hilst provision of safe access to ,or&in! platfor/s is an inte!ral part of erectin! a drop scaold3 consideration /%st also $e !iven to the point of access to and e!ress fro/ the top of the ladder1 A s%ita$le landin! platfor/ at the top of the ladder is very i/portant1 S%ch landin! platfor/ shall $e f%lly dec&ed and !%ard railed1 This is after the area personnel ,ill set their tools and e4%ip/ent do,n in preparation for lo,erin! the/ to the/ ,or&in! platfor/ 6611 Personnel sho%ld not $e re4%ired to scale per/anent ed!e protection or str%ct%re /e/$ers to !ain access to the ladder1 Consideration /%st $e !iven to a syste/ of steps to eli/inate this type of ha2ard1 The nat%re of the ,or& to $e perfor/ed fro/ the ,or&in! platfor/ /ay re4%ire the scaold to
$e f%lly enclosed ,ith a 9re retardant /aterial to protect those personnel ,or&in! $elo,1
Page 18 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
85
+B
MOBILE SCAFFOLDING TUBE FITTING
D1=1-
A /o$ile scaold consists of fo%r or /ore standards 0oined to!ether lon!it%dinally $y led!ers and transversely $y transo/s and p%tlo!s and are s%pported $y approved castors1 The scaold is $raced in all faces to for/ a sta$le ri!id str%ct%re1
B+? S1> Heavy d%ty Medi%/ d%ty Li!ht d%ty
61;/ F 61B/ 1/ F 61;/ <17/ F 16/
Page 19 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
*
L-+/1>
Not /ore than one ,or&in! platfor/ shall $e erected on a /o$ile scaold altho%!h inter/ediary landin! platfor/s /ay $e erected for access to the ,or&in! platfor/1 The ,or&in! platfor/ on a /o$ile scaold shall not eFceed the follo,in! loadin!s Heavy d%ty Medi%/ d%ty Li!ht d%ty /
B &!1 <7 &!1 6;7 &!1
H1=
The /aFi/%/ hei!ht of the ,or&in! platfor/ on a /o$ile scaold is < ti/es the /ini/%/ $ase di/ension1 It ,ill $e seen that this re4%ire/ent ,ill /a&e it necessary to increase the $ase area of the scaold I order to erect the ,or&in! platfor/ to a hei!ht !reater than ,orld $e per/itted $y the area of one $ay1 -hen the $ase of a /o$ile scaold is eFtended3 the centre of the ,or&in! platfor/ /%st $e located vertically a$ove the centre of the $ase3 providin! that -hen a ,all3 or the li&e3 prevents the eFtension $ein! %sed on one side3 the $ase on the opposite shall $e eFtended to !ive the re4%ired ratio1
C+>=-> No castor shall $e %sed on a /o$ile scaold %nless it /eets the follo,in!
The S-L is clearly sta/ped Pne%/atic tyres prohi$ited Safe loc&in! device Mini/%/ dia/eter 6B// Eccentricity $et,een the centre of the castor and the shan& is less than 7// Shan& is not less than 6B7// in len!th and is a$le to $e properly sec%red in the standard1
B+*1
Dia!onal face $racin! shall $e installed pro!ressively on all faces of a /o$ile scaold1 Dia!onal plan $racin! shall $e installed in the $ase lift as close to the castors as practica$le and co%pled in the centre %sin! a s,ivel co%pler1 Plan $racin! shall $e f%rther located in every third lift1
E*=1-
A /o$ile scaold is eectively a to,er scaold s%pported on castors1 As s%ch the erection proced%re applica$le to to,er scaold is to $e o$served1 The only eFception is to $e the s%$stit%tion of $ase plates for castors1
Page 20 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
S+ > - + M-1. S*+,-./
There are a n%/$er of points to $e re/e/$ered ,hen %sin! a /o$ile scaold to ens%re the safety of all personnel1 Castors are to have the loc&in! device en!a!ed at all ti/es ,hen stationary and only released for the p%rpose of shiftin! location1 Personnel are not per/itted to re/ain on the ,or&in! platfor/ ,hen the scaold is $ein! /oved1 Plan&s are to $e laid on %neven !ro%nd s%rfaces to allo, the scaold to $e /oved s/oothly fro/ one point to the neFt1 -here possi$le the /o$ile scaold is to $e tied to a $%ildin! or str%ct%re ,hen stationary to restrict /ove/ent Access to the ,or&in! platfor/ shall only $e !ained via the ladder access provided thro%!h the centre of the scaold1 Plan&s shall not span the ,or&in! platfor/s of t,o /o$ile scaolds %nless the /o$ile scaold are tied to!ether ,ith led!ers1 The /aFi/%/ 0ac&in! ad0%st/ent on the castors shall not eFceed <77// 1 1
L1= A.2112 A..-? F+2
There are a n%/$er of patented desi!ns of li!ht al%/ini%/ alloy fra/e /o$ile scaolds on the /ar&et1 There is very little dierence $et,een $rands and therefore a fe, !eneral safety preca%tions cover the erection of these scaolds 1 1
L-+/1
The /aFi/%/ load per platfor/ %nit shall not eFceed B&!1 Not /ore than t,o platfor/ %nits shall $e loaded at any one ti/e1 11
B+*1
T,o dia!onal $races shall $e provided to each lon!it%dinal face $et,een ad0acent fra/es1 Hori2ontal plan $racin! shall $e provided as near to the castors as possi$le3 so that each standard s%pported $y a castor is eectively $raced1
111
M+0122 H 1= - W-<1 P.+=-2
The hei!ht of the ,or&in! platfor/ shall not eFceed t,o ti/es the least $ase /eas%re/ent $%t in any event the hei!ht of the ,or&in! platfor/ shall not eFceed @ /eters1
Page 21 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
86
BIRDCAGE SCAFFOLDING
+B
D1=1-
5irdca!e scaoldin! consists of /ore than ro,s of standard 0oined to!ether $y led!ers3 and transo/s or p%tlo!s3 and $raced and tied to for/ a ri!id sta$le str%ct%re1 5irdca!e scaoldin! is %sed to !ain access to ceilin!s and ,alls1
B+? S1> Heavy d%ty Medi%/ d%ty Li!ht d%ty
*
61;/ F 61B/ 1/ F 61;/ <17/ F 16/
L-+/1>
It is %nli&ely that $irdca!e scaoldin! ,o%ld ever re4%ire /ore than one ,or&in! platfor/ to $e erected3 as the /ost co//on application is for ceilin! ,or&1 Ho,ever3 sho%ld there $e a need for /ore than one ,or&in! platfor/ it is per/issi$le to erect a /aFi/%/ of t,o1 One ,or&in! platfor/ sho%ld not $e loaded in eFcess of the follo,in! Heavy d%ty Medi%/ d%ty Li!ht d%ty
B &!1 <7 &!1 6;7 &!1
/
B+*1 Dia!onal $racin! is to $e provided on all faces of the scaold and ,here necessary3 internally to ens%re a ri!id scaold1 -here a $irdca!e scaold is erected ,ithin a con9ned area3 $%tt t%$es /ay $e %sed in addition to3 or in s%$stit%tion of3 other $racin! or ties3 if the ,all s%rface per/its1 In so/e cases the led!ers and transo/s can $%tt a!ainst the ,all to !ive the scaold ri!idity1
W-<1 P.+=- 2
EFcept ,here access is provided3 the ,or&in! platfor/ on a $irdca!e scaold is to $e closely plan&ed at all ti/es1 There is to $e no Jhit and /issK ,ith platfor/ plan&s as specified in Occ%pational Health3 Safety and -elfare "e!%lations1 If there are ins%icient plan&s to closely plan& the ,hole area of the ,or&in! platfor/ then the area not covered shall $e !%ard railed at the open ed!e 1
Page 22 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
E*=1-
Erection proced%re for $irdca!e scaoldin! shall follo, that of independent t%$e and 9ttin! scaoldin!1 All safety aspects o%tlined are to $e o$served1 It ,ill $e necessary in so/e applications of $irdca!e scaoldin! to provide an inclined ,or&in! platfor/1 The /aFi/%/ slope allo,a$le $efore a stepped or terraced eect is incorporated is 6:1
Care /%st $e ta&en to ens%re the ,or&in! platfor/ plan&s are placed to r%n at ri!ht an!le to the !rade1 This ,ill eli/inate any tendency for the plan&s to slide o the p%tlo!s 1
Page 23 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
87
CANTILE)ER SCAFFOLDING A
+B
D1=1-
A cantilever scaoldin! is s%pported $y lar!e cantilevered $ea/s pro0ectin! fro/ a $%ildin! or str%ct%re ,ith an in$oard restraint capa$le of ,ithstandin! a force at least < ti/es the o%t$oard load1
B+? S1> Heavy d%ty Medi%/ d%ty Li!ht d%ty
*
61;/ F 61B/ 1/ F 61;/ <17/ F 16/
L-+/1>
Not /ore than t,o ,or&in! platfor/s are to $e erected and f%lly loaded per $ay of scaffoldin! s%pported $y cantilevered $ea/s1 One ,or&in! platfor/ is not to $e loaded of the follo,in! Heavy d%ty Medi%/ d%ty Li!ht d%ty /
B &!1 <7 &!1 6;7 &!1
E*=1-
All !ear to $e %sed I the erection of a cantilevered scaold is to $e laid o%t nearly and sorted into si2es for easy access1 It ,ill $e necessary to erect !eneral p%rpose $%ntin! aro%nd the ,or& area and at !ro%nd level $eneath the ,or& area to ,arn personnel of an overhead ha2ard1 A si!n /%st $e displayed pro/inently at !ro%nd level statin! JDan!er > Men -or&in! A$oveK1 111
P->1=1-1 B+2>
The $asis of all cantilever scaolds is the needle $ea/s and as s%ch is critical to the safe erection of the scaffold1 The 0o$ safety analysis disc%ssion $et,een the licensed scaolder and s%pervisor sho%ld cover the follo,in! points re!ardin! the $ea/s The di/ension of the $ea/ The a$ility of the pivot point to s%pport the co/$ined forces of the in$oard and o%t$oard The a$ility of the in$oard restraint to ,ithstand three ti/es the force of the load o%t
$oard The /ethod to $e e/ployed to eli/inate any lateral /ove/ent fro/ the $ea/s The 9rst three points /entioned a$ove re4%ire an En!ineer?s veri9cation1
Page 24 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
The $ea/s are positioned the re4%ired distance apart accordin! to the standard spacin!s of the scaold and pro0ected the re4%ired distance o%t$oard fro/ the $%ildin! or str%ct%re1 The o%t$oard distance is calc%latd fro/ the desired ,idth of the ,or&in! platfor/ pl%s the clearance re4%ired fro/ the $%ildin! or str%ct%re to the ,or&in! platfor/3 pl%s 77//1 The in$oard restraint to/s are installed the re4%ired distance in$oard and tied to!ether and ,elded or $olted to the $ea/ to prevent any /ove/ent1 On co/pletion of the in$oard restraint of the $ea/s3 the scaold can $e erected on the pro0ectin! portion of the needle1 All ,or& to $e prefor/ed on the o%t$oard re4%ires the scaolder to sec%re his anti.fall lanyard to a sec%re anchora!e1 1
E*=1- - = O=-+/
A /ini/%/ of t,o $oards are to $e laid on the needles to aord the scaolder a de!ree of co/fort ,hen erectin! the scaold1 The standards are to $e located on $ase plates ,elded to the $ea/s at the re4%ired spacin!1 Led!ers are to $e erected as close to the $ase of the standards as possi$le and sec%red to the top Gan!e of the $ea/ ,ith p%rpose /ade $ea/ cla/ps1 The scaffold is erected as for t%$e and 9ttin! independent scaffoldin! ,ith attention $ein! paid to ties and $racin!1
F-2.+ =- C+.*.+= U<-;> F-2.+ =- *+.*.+= <-;:(
As ,e ,o%ld al,ays &no, the o%t$oard speci9cation of a cantilever scaold and it is reco//ended that the in$oard distance of the $ea/s *pivot point to in$oard restraint+ is three ti/es the o%t$oard distance3 the co%nter,ei!ht or on$oard restraint is the only calc%lation li&ely1 The follo,in! for/%la is %sed to 9nd the %n&no,ns: C- F D > d F 6 F < CD
P P
in$oard restraint in$oard distance
d 6
<
o%t$oard distance o%t$oard load safety factor
P P
-hen calc%latin! the o%t$oard load the /ass of the co/ponents of the scaold /%st $e considered as they /a&e %p part of the load1 The o%t$oard distance is calc%late as
the clearance fro/ the pivot point to the inside standard of the scaold pl%s < the ,idth of the scaold1
A**>>
A safe access is to $e provided to the ,or&in! platfor/1 The ladders are to $e positioned thro%!h the centre and all landin!s are to $e f%lly dec&ed and !%ard railed1 All /anholes to facilitate the positionin! of ladder are to $e !%ard railed and a s,in! !ate installed 1
Page 25 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
88 +B
LIGHT DUT" SUSPENDED STAGES D1=1-
A li!ht d%ty s%spended sta!e /eans a ,or&in! platfor/ s%spended fro/ overhead s%pports and The /eans of lo,erin! or raisin! the sta!e3 ,hether those /eans are operated $y hand or are po,er driven The overhead s%pports3 attach/ents and trac&s and The /eans of s%spension
P.+=- 2>
Altho%!h it is 4%ite possi$le to constr%ct a platfor/ s%ita$le for a li!ht d%ty s%spended sta!e fro/ scaold t%$e it is %nli&ely that it ,o%ld $e necessary1 -ith the availa$ility of patented prefa$ricated syste/s to the /ar&et3 the tas& of erectin! a s%spended sta!e has
Page 26 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
$een si/pli9ed1 This section of the Code of Practice ,ill concentrate on the prefa$ricated %nits 1 Sho%ld the scaolder $e re4%ired to constr%ct the ,or&in! platfor/ fro/ t%$e and 9ttin!3 approval $y SAS Accident Prevention S%perintendent ,ill $e necessary 1 There are a variety of platfor/s availa$le3 so/e sin!le %nits and so/e co/ponent asse/$lies that allo, the len!th of the platfor/ to $e varied1 Ho,ever3 there are so/e $asic re4%ire/ents that apply to all platfor/s III+ The platfor/ is to $e of ri!id constr%ction and neither /ore than 77// nor less than B77// ,ide1 I+ The platfor/ is to have !%ard rails sec%rely 9Fed aro%nd the o%ter ed!es1 + The platfor/ is to have fender $oards of not less than 677// 9tted to all ed!es1 I+ S-L to $e clearly displayed 1 *
O+/ S-=>
The overhead s%pports of a li!ht d%ty s%spended sta!e ,ill vary ,ith individ%al 0o$ applications $%t can $asically $e divided into t,o cate!ories1 They are I+ +
P%rpose /ade /od%lar or scaffold t%$e overhead s%pports Str%ct%re /e/$ers of the $%ildin! or str%ct%re
The over.ridin! re4%ire/ent of any overhead s%pport of a li!ht d%ty s%spended sta!e is that it /%st $e a$le to ,ithstand a force e4%ivalent to three ti/es the /aFi/%/ load to $e s%spended fro/ s%ch overhead s%pport +
P-> M+/ M-/.+ O+/ S-=>
Man%fact%rers of li!ht d%ty s%spended sta!es /ar&et the overhead s%pports to s%it there !ear1 Many are telescopic ,hich /a&es for easy transportation and have a loc&in! device to retain the/ at the re4%ired eFtension1 The overhead s%pports /%st $e prevented fro/ /ovin! laterally $y $ein! tied to!ether or in so/e other ,ay prevented fro/ /ovin! to the satisfaction of the S%pervisor1 They /%st $e co%nter$alanced $y ,ei!ht as follo,s: Have a ,ei!ht not less than < ti/e the ,ei!ht necessary to $alance the ,ei!ht of the load on the
pro0ectin! part of the needle ,hen the platfor/ is f%lly loaded1 Are properly sec%red to the needle Are of p%rpose /ade /etal or si/ilar approved /aterial Have their ,ei!ht clearly sta/ped thereon
Page 27 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
* P-> M+/ S*+,-./ T O+/ S-=> Scaold t%$e needle s%pports /ay ta&e the for/ of a sp%rred needle arran!e/ent or a do%$le needle arran!e/ent as sho, in 9!%re 671 They are to $e co%nter$alanced as in 9!%re 67 or tied to the $%ildin! or str%ct%re capa$le of ,ithstandin! three ti/es the force li&ely to $e i/posed1 / S=*=+. M2> - = B1./1 - S=*= Provided an En!ineer?s eval%ation has approved the %se of str%ct%ral /e/$ers of the $%ildin! or str%ct%re as overhead s%pports3 it is accepta$le to do so1
I>*=1- P1- =- U> Prior to any li!ht d%ty s%spended sta!e $ein! p%t into service for the 9rst ti/e or $ein! p%t into service after a s%$stantial period of non %se3 the li!ht d%ty s%spended sta!e shall $e inspected and tested $y a SAS Accident Prevention Advisor1
L-+/ C+.*.+=1-
In order to have the correct co%nter,ei!ht incl%sive of the safety factor3 it is necessary for the scaolder to $e a$le to calc%late the load o%t$oard1 The load shall $e calc%lated in the follo,in! /anner: S-L of the platfor/ Mass of the platfor/ Mass of ,inches Mass of ,ire and ca$les Total s%spended load B8 allo,ance for shoc& load Total o%t$oard load the total o%t$oard load is divided $y t,o to deter/ine the o%t$oard load per needle1
W1*>
There are n%/ero%s cli/$in! ,inches availa$le3 each ,ith their o,n special feat%res1 Prior to any cli/$in! ,inch $ein! p%t into service on prior approval /%st $e o$tained1 'eat%res co//on to all cli/$in! ,inches approved for %se on site are: Drive %p3
drive do,n S-L clearly displayed Dead /an $%tton operation Man%al operation in the event of po,er fail%re A%to/atic fall stop rope
Page 28 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
W1* R->
-inch ropes are s%pplied ,ith ,inches $y the /an%fact%rer and %nder no circ%/stances sho%ld $e s%$stit%ted for any other rope1 The ropes are !enerally ;// dia/eter3 or <6 steel core constr%ction !alvani2ed steel1 All the safety feat%res of the cli/$in! ,inch are to no avail sho%ld the rope $rea& so the correct handlin! and inspection of the rope are critical1 The follo,in! proced%res shall $e o$served to ens%re the correct handlin!3 stora!e and inspection I+ Store in a coil of approFi/ately 77// dia/eter tied at 4%arter points ,ith t,ine1 II+ Store in an area free fro/ /oist%re 1 III+ A rope re!ister shall $e &ept in ,hich re!%lar rope inspections shall $e lo!!ed1 I+ The operator of the li!ht d%ty s%spended sta!e sho%ld o$serve the rope ,hen ascendin! or descendin! and report to his s%pervisor3 any si!ns of ,ear3 $ro&en ,ires3 &in&s or $ird ca!in!1 + -hen s%spended fro/ overhead s%pports3 the rope shall $e anchored to re/ain ta%t and any eFcess coiled %p1 I+ "opes stores in coils shall $e rolled o%t rather than p%lled fro/ the /iddle as this ,ill ca%se the rope to &in& and %lti/ately $irdca!e1
G+. S+=?
All personnel re4%ired to ,or& fro/ the platfor/ of a li!ht d%ty s%spended sta!e shall ,ear at all ti/es3 approved anti.fall protection sec%red to the !%ard rail 1 The area shall $e $arricaded ,ith !eneral p%rpose $%ntin! and a si!n displayed pro/inently statin! JDan!er > Men -or&in! A$oveK1
9
INSPECTION
SCA''OLDIN( CONST")CTION *SC+ shall ens%re that3 at all ti/e of handin! over3 the scaold iii+ Co/plies ,ith any desi!n dra,in! and or speci9cation for that partic%lar scaffold iii+
Co/plies ,ith the re4%ire/ents of stat%tory re!%lations and 5ritish
Standard iii+
Is ade4%ate for the p%rpose of ,hich it is intended
iii+
Is sta$le and in safe condition
iii+
Is /ar&ed to indicate its Safe -or&in! Load /entioned in SCA''TA(
iii+
Has $een thoro%!hly inspected $y co/petent person
Page 29 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
iv+ The Hand.over Certi9cate has $een si!ned and dated on $ehalf of SCA''OLDIN( CONST")CTION *SC+ The scaold /%st $e inspected prior to dis/antlin!1 If the scaffold is defective3 it /%st $e /ade !ood $efore dis/antlin! co//ences1 -here alterations have $een /ade to the scaold d%rin! its ,or&in! life1 It is not safe to ass%/e that dis/antlin! can $e carried o%t in se4%ence the reverse of that %sed d%rin! erection1 v+
!
SCAFFTAG S?>=2
SCA''TA(?s allo, an i//ediate vis%al indication of the condition of a scaold str%ct%re1 The syste/ co/prises: O
A holder ,hich 9ts over a scaold t%$e and displays JDO NOT
)SE SCA''OLDK in red on a ,hite $ac&!ro%nd 1 Insert for the holder3 one side ,hite on !reen to indicate3 ,hen sho,in!3 that the scaold is certified for %se and !ivin! details3 the other side $lac& on yello, to indicate3 ,hen sho,in!3 that the scaold is %nder inspection and /%st not $e %sed1 An eFact d%plicate of the insert is retained in a SCA''TA( rac& in an appropriate location3 e1!1 A%thorities Oice3 Control "oo/3 etc1 O
NOTE: The only person a%thori2ed to 9F or chan!e a SCA''TA( is a Scaold Inspector appointed $y SCA''OLDIN( CONST")CTION *SC+1 "e/oval of a SCA''TA( /ay $e carried o%t $y the Perfor/in! A%thority ,here he is of the opinion that a scaold is %ns%ita$le for its intended application3 in ,hich case he shall re/ove the insert to display the J DO NOT )SE SCA''OLD J /essa!e and re4%est IC andor Inspector to rectifyrecertify the scaold1 A SCA''TA( /ay also $e re/oved $y any person infor/ his s%pervisor for re/edial to $e ta&en1 The client /ay re/ove any SCA''TA( if he dee/s that area %nsafe to ,or& any other reason not attri$%ted to the scaold its self i1 e1 (as Lee&s area3 Stea/ cleanin! etc1
MODIFICATIONS
Modi9cations to SCA''TA(. certi9ed scaolds shall $e %nderta&en only $y SCA''OLDIN( CONST")CTION *SC+ ,ith the a%thority of the ,or&site s%pervisor1 After a /odification has $een /ade3 inspection and recertification shall $e carried o%t1 If %na%thori2ed /odi9cations are o$served3 they shall $e reported to $e ,or&site s%pervisor and the insert re/oved fro/ the SCA''TA( holder to reveal the JDO NOT )SE SCA''OLDK ,arnin!1
Page 30 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
# HA$ARDS DURING DISMANTLING OF SCAFFOLDS
CONSTRUCTION%
USE
AND
All proced%res and safety !%idelines follo,ed shall ta&e into consideration the follo,in! ha2ards1 iii+
'a%lty str%ct%ral desi!n or inade4%ate $racin!
iii+
'a%lty /aterials of constr%ction
iii+
Overloadin!
iii+ Deterioration of 9Fin! or the /aterials of constr%ction d%e to da/a!e or the ,eather
3
iii+
)na%thori2ed alteration
iii+
I/pact fro/ passin! vehicles
iii+
'ail%re of the scaold str%ct%re ,hen inco/plete
iii+
Scaoldin! /aterials $ein! dropped d%rin! handlin!
SAFET" SIGNS AND BARRIERS
-henever a scaold is inco/plete3 d%rin! constr%ction3 alteration or dis/antlin! all access points /%st $e $arrier and /ar&ed $y ,arnin! si!ns and notices to indicate that scaold is not safe for !eneral %se1 The access area aro%nd a scaold /ay need to $e roped.o3 to red%ce the ris& of de$ris or e4%ip/ent fallin! on passer.$y1
4
PRECAUTIONS DURING CONSTRUCTION AND DISMANTLING
All /aterials /%st $e raised or lo,ered in an orderly /anner3 $y hand or $y hoist1 S/all ite/s sho%ld $e handled in sec%red $a!s or $as&ets1 No ite/s /ay $e thro,n or allo,ed to fall1 No scaolder shall ,or& ,itho%t a sec%re foothold and a sec%re handhold1 iii+
Properly sec%red ladders shall $e %sed for access to hei!hts1
iii+ No scaolder shall ,or& fro/ a scaold platfor/ of less than three scaold $oards all
properly s%pported1
Page 31 of 32
METHOD STATEMENT GENERAL PROJECT SCAFFOLDING WORKS
iii+ The /ethod of ,or& e/ployed shall avoid %nnecessary eFpos%re of scaQoders at hei!hts1 iii+ 'or eFposed ,or& at hei!hts3 scaolders shall ,ear safety harnesses and ,henever practica$le3 attach safety lanyards to a sec%re anchor point on an ad0acent str%ct%re1
5 OF
RE&UEST TO ERECT AND DISMANTLE B" USERS ' CLIENT LE)EL URGENC"
i+ iii+ v+
6
Level 6: Level : Level <: Level : Level B:
"e4%ired in one ,ee&?s ti/e of later ii+ "e4%ired in three days ti/e "e4%ired ,ithin one to t,o days iv+ "e4%ired in a half a day "e4%ired i//ediately
COMPETENCE AND TRAINING
iii+ Persons e/ployed to erect3 inspect3 alter or dis/antle scaffolds /%st $e co/petent and eFperienced scaolders1 iii+ Scaoldin! S%pervisors and 'ore/en /%st $e 4%alified fro/ a s%ita$le scaffoldin! 4%ali9cation co%rses and /%st $e eFperienced in ,or& ,ith scaolds1 iii+ Trainin! shall $e provided $y SCA''OLDIN( CONST")CTION *SC+ Trainin! Center that provides trainin! for scaolders *t%$es and 9ttin!s+ $ased on 5ritish Standards1
