the scaffolding people Scaffolding (India) Ltd.imghost1.indiamart.com/data2/CJ/KM/MY-499323/... · Scaffolding (India) Ltd. the scaffolding people An ISO 9001:2000 Co. Modular Framework

WheelsScaffolding (India) Ltd.

the scaffolding people

An ISO 9001:2000 Co.

Modular Frameworkfor Construction Industry

Users Manual

formerly Wheels Fabricators Pvt. Ltd.

WSL CUPLOCK is the world’s most widely used

system scaffold. It is a fully painted/galvanised multi-

purpose steel scaffold system suitable for providing

general access and supporting vertical loads.

CUPLOCK’s key feature is its unique circular node

point which allows up to 4 horizontals to be

connected to a

vertical in a single fastening action -making it

probably the fastest and safest system available.

a

WSL C

The comprehensive range of CUPLOCK components

allows it to be used with traditional scaffold boards or

battens. It can be used to create a huge range of access

and support structures, staircase towers, circular

scaffolds, loading towers and mobile towers.

7 Tank phosph ting is the finest practical coating that

can be applied to a scaffold system, providing a long

working life and better handling. CUPLO K is

manufactured to strict quality standards.

This manual has been designed to enable

CUPLOCK users to become proficient in

planning and erecting conventional CUPLOCK

scaffolds. It provides comprehensive details

of components and guidance on the

design and erection of access and

support structures.

Introduction

WSL CUPLOCK Formwork Support System The erection and application instructions

Advantages contained in this booklet are the recommended

• Maximum leg load of 75* kN with a max grid methods to be used for WSL CUPLOCK

spacing of 2.5m x 2.5m. products.

* Maximum leg load is dependant on a set of The technical instructions contained in this

conditions with regard to bracing, Ledger/ brochure must be accurately followed to achieve

Transom spacing, load eccentricity, extension the correct function of the product. Any deviation

of Adjustable Bases and U-Heads and out of from the recommended principles shown

plumb of the system.• Simple and efficient in this brochure may require a separate design

interconnection of Ledgers and braces. and/or verification by the WSL Engineering

• Standards produced from 48.3 mm dia high Department.

strength tube available in lengths up to 3.0m.

• Painted/Galvanised components for durability. The illustrations in these assembly instructions

(all threaded components are zinc plated not are guidelines only.

galvanised) Only WSL CUPLOCK Standards and WSL

• Choice of bay (grid) sizes to allow maximum CUPLOCK Adjustable Bases/Adjustable U-Head

capacity of leg load to be developed. Assemblies must be used in the support

• Area below formwork can be decked out to structure.

provide access or working platforms during The use of CUPLOCK Standards or any other

erection and dismantling of soffit form. Adjustable Bases anywhere in the arrangement

• Fully systemised for ease of erection. reduces the leg load capacity of the structure to

• Minimum components and fittings. All parts that of the Standard CUPLOCK system and/or to

are interchangeable. the capacity of the Adjustable Base used.

• Diagonal braces snap on to Ledgers at node Maximum capacities are only applicable for

points and are easily dismantled by means of a equipment in good order and free from defects.

quick release trigger.

• Designed and manufactured in accordance

with required Standards.

Important

CUPLOCK Scaffolding System

the CUPLOCK locking procedure

At the heart of the CUPLOCK system is its unique node- It is this revolutionary node point which makes WSL

point locking device. This enables up to four horizontals CUPLOCK faster and simpler to erect than any other

to be loosely but safely connected to the standard then system scaffold. Once a CUPLOCK structure is ‘based

locked into position with a single hammer blow. The out’ and levelled, subsequent lifts are automatically

system uses no loose clips, bolts or wedges. erected square and horizontal.

The locking device is formed by fixed lower cups, welded The lack of loose components makes the system easy to

to the standards at 0.5m intervals, and sliding upper use and exceptionally robust - its painted/galvanised

cups which drop over the blade ends of the horizontals finish making it virtually immune to corrosion and

and rotate to lock them firmly into place giving a positive, damage.

rigid connection.

General Technical &Application Manual

15

04

20

50

05

00

50

05

00

50

08

0

One of the key strengths of the CUPLOCK system is the simplicity of the component range.

Basic horizontals and verticals form the core of all structures. However, with the addition

of a small number of special components, complex scaffolds can be constructed which

safely address awkward access requirements.

WSL CUPLOCK Spigoted Standards (Verticals)

There are five basic sizes of spigotted Standards.

Made from 48.3mm diameter x 3.2mm thick high grade steel tube, all standards incorporate lower

fixed cups at 0.5m intervals with captive rotating top-cups securing up to 4 components. The

lowest bottom cup is 80mm from the base of the standard to give the scaffold improved structural

strength and reduce the need for base bracing in support structures. Access Standards

incorporate a 150mm spigot at the top to allow the vertical connection of further standards.

Provision for a locking pin is also provided. (CUPLOCK Support Standards do not have this spigot

-allowing the insertion of jacks with various support components).

WSLCUPLOCK 3.0 Standard CLS01 15.2





WSL CUPLOCK

Name Code wt.(Kg)

1

2

3

m Cot ut poB

General Technical &Application ManualWSL Standards (Verticals) Open Ended

There are six basic sizes of open WSL CUPLOCK Standards.

Made from 48.3mm diameter x 3.2mm thick high grade steel tube, all standards incorporate lower

fixed cups at 0.5m intervals with captive rotating top-cups securing up to 4 components. The

lowest bottom cup is 80mm from the base of the standard to give the scaffold improved structural

strength and reduce the need for base bracing in support structures.

WSLCUPLOCK 3.0 Open Ended Standard CLS06 14.5






Components in WSL CUPLOCKS

1: Spigot.

2: Heavy malleable casted top cup.

3: Bottom cup.

Name Code wt.(Kg)

42

05

00

50

05

00

50

05

00

80

Ledgers/HorizontalsCUPLOCK Ledgers are used as the main horizontal connecting members for the WSL CUPLOCK system.

The Ledgers are manufactured from 48.3 mm O.D. tube with forged steel blade ends which locate into bottom cups of the Standards and are locked in place by the corresponding top cups.

Ledgers are available in various lengths to provide the desired grid dimension when used with WSL CUPLOCK Standards for formwork support or Access Work System. Cuplock ledgers are available in B Class pipe as per customer requirement.

CUPLOCK Ledger 2.50 CLL01 9.0 CLL08 7.8







TransomsCUPLOCK Transoms made out of 50x50x5mm angle are used as a horizontal connecting member for the WSL CUPLOCK support system when a working platform is required, providing that it is not located in a position where system diagonal bracing is also required, as the braces cannot attach to a Transom, alternatively non system bracing may be used.Transoms are fabricated from twin structural steel angles fixed back to back with a drop forged blade attached to each end.

The Transom secures to the Standard in the same manner as the Ledger. The outward standing bottom leg of the angles supports the steel planks in a captive manner to provide working platforms.

Available in various lengths to suit a range of support grids and applications.

CUPLOCK Transom 2.5 CLT01 18.94







Name Wt.(Kg.)B Class A Class

Name Code Wt.(Kg.)

Code Code Wt.(Kg.)

WSL CUPLOCKScaffolding System

Intermediate TransomsIntermediate Transoms provide mid-bay support for 38mm scaffold boards by spanning between the inner and outer ledgers. The jaw section at each end is turned downwards to prevent dislocation. One end is provided with an integral locking device to prevent any movement along the ledgers during use. In addition to the standard 1.3m wide unit, shorter Intermediate Transoms are available for use where scaffold boards require support between hop-up brackets. They span between the inside ledger of the main scaffold and the ledger linking the hop-up brackets. For use with 2 board and 3 board hopup brackets respectively.

CUPLOCK Intermediate Transom 2.5 CLI 01 12.59








Inside Board Transom: 1 and 2 Board

Drop into place over the ledgers and are secured with a locking device to prevent movement. Act as conventional transoms but extend

beyond the inside ledger to provide intermediate support to one or two inside boards.

Inside Board Supports

Single Board Support

Locates in the cup joint and provides support for a single inside board at a vertical. It replaces the inside board transom at that point.

Name Code Wt.(Kg.)


Locking device

Description Code Overall Weight

length (m) (kg)

1-Board CLIBT01 1.570 9.0

2-Board CLIBT02 1.850 11.5

Code Overall length (m) Weight (kg)

CLIBS01 0.26 1.5

Hop-up Brackets

Designed to increase the overall width of the working platform to seven or eight boards by

supporting two or three additional boards beyond the inner face of the scaffold. They

incorporate a cup joint at the outside end to allow the fitting of an inside ledger which links the

hop-up brackets and supports intermediate transoms. Also incorporates a facility to support a

handrail post.

Return Device

A conventional blade end connected to a hook section which locates over the ledger on the

adjacent return elevation to provide a corner connection. Used in pairs.

Swivel Face BraceProvides face bracing on a CUPLOK access scaffold. Each brace has swivelling blade ends to allow for easy location within the node joint. As only one blade end can be located in each joint, parallel bracing is employed rather than the ‘dogleg’ or ‘zig-zag’ method.


length (m) (kg)

3-Board CLHB01 0.815 7.7

2-Board CLHB02 0.585 6.3

Code Weight (kg)

CLRD01 1.15


Description Code Weight Overall

(Kg) length (m)

1.8 x 1.5m CLSFB1 8.7 2.396

1.8 x 2.0m CLSFB2 9.8 2.744

2.5 x 1.5m CLSFB3 10.7 2.969

2.5 x 2.0m CLSFB4 11.5 3.255

L

X

Y

Swivel blade

Handrail PostFor use with Hop-up Brackets, staircase towersand on support scaffolds if required. Incorporatescup joints to allow the location of ledgers to form guard rails.

The Omega Batten system incorporates all the main CUPLOCK components but replaces the tubular transom with a special Omega unit into which special boards or battens slot to provide a secure, flush work platform.No intermediate transoms are required as stronger battens are used in place of scaffold boards.Battens are either 63mm thick (timber) or 57mm (steel).

Omega TransomProvides a firm location for the Omega Battens.The specially designed Omega section provides a very strong supporting platform and prevents the battens from moving. Forged blade ends locate into the cup joint of the vertical in the normal way. Both the 2.5 and 1.8m Omega Transoms can be used when CUPLOCK is erected to form a birdcage access scaffold using timber or steel battens, or on mobile access towers in modular sizes.


CLHP01 1.150 4.8


Size Code Overall Weight

(M) length (m) (kg)

0.8 CLOT01 0.752 3.9

1.3 CLOT02 1.252 6.6

1.8 CLOT03 1.752 10.0

WSL CUPLOCKScaffolding SystemLadder Access TransomA square-section transom with an Omega profile across part of its width to support short battens behind a ladder opening. It has a claw at one end and a half coupler at the other to ensure secure positioning along the ledgers. Must only be used in conjunction with Omega transoms.

Return TransomA transom with a steel hook profile which locates over the ledger of the adjacent return scaffold, linking the two sections together. The other side of the transom incorporates a conventional Omega section to receive timber or steel battens.

Omega Single Board SupportLocates at the cup joint and provides support for a single inside batten.

Omega Hop-up BracketDesigned to increase the overall width of the working platform to seven or eight Battens by supporting two or three additional battens beyond the inner face of the scaffold. It incorporates a cup joint at the far end to allow the fitting of an insideledger which links the hop-up brackets to prevent movement. It also incorporates an opening to support a handrail post.


CLLT01 1.3 9.3

Code Length (m) Weight (kg)

CLRT01 1.3 8.6


CLOB01 0.267 2.3


length (m) (kg)

3-Board CLOHB01 0.815 7.6

2-Board CLOHB02 0.585 6.6

WSL CUPLOCKScaffolding SystemOmega Two and Three Board Corner UnitsProvides an external corner support 2 or 3 battens wide. For use between hop-up brackets. Infill with timber, cut to fit.

Timber Battens63mm thick and of 225mm nominal width. Weights shown are approximate at 20% moisture content.

Steel BattensCUPLOCK Galvanised Steel Battens are 57mm thick and 238mm wide. They incorporate a non-skid perforated surface for slip resistance in poor weather.

Toeboard ClipsTimberFor use with timber battens only. Locates around the standards and sits on the 'top-hat' section of the Omega transom

Toeboard ClipsSteelFor use with steel battens only. Locates around the standards and locks the toeboard rigidly into position

Description Code Length (m) Weight (kg)

2-Board CLOBC01 6.6

3-Board CLOBC02 9.3


(kg) length (m)

1.3m TB01 9.5 1.250

1.8m TB02 13.0 1.750

2.5m TB03 18.0 2.450


(kg) length (m)

1.3m SB01 6.7 1.250

1.8m SB02 9.11 1.750

2.5m SB03 12.4 2.450

Code Weight (kg) Size (mm)

TCT01 1.0 150 x 120 x 171

Code Weight (kg)

TCS01 1.0

End Toeboard ClipLocates on the Omega Transom. For use with timber or steel battens.

CUPLOCK Tie BarsTie bars are used to interlock the ends of Platform Brackets and to provide a means ofpreventing the Planks from sliding off the end of the bracket. The studs at the end of the tie locate into slots in the Platform Brackets.

CUPLOCK Transom BeamTransom Beams are designed for special duty load applications. Allows high deck capacity and large grid patterns.

CUPLOCK Transom TrussThe Transom Truss is designed for high capacity loading platforms and overhead protective structures. Connects at 4 points, enhancing the rigidity of the scaffold. Consult WSL Engineering Department for load capacity details.

Code Weight (kg)

ETC01 1.5


CUPLOCK Tie Bar 0.61m





CUPLOCK Transom Beam 1.80m

CUPLOCK Transom Beam 2.50m

CUPLOCK Transom Truss 1.80m



This section illustrates the methods in which CUPLOCK can be used to create returns and inside board platforms.

In most cases, these will overcome the problems of corners and projections which could prevent the scaffold being erected close to the

building Corner Return using the Return Device Corners can be made using the Return Device to link the two scaffold runs. It hooks

over the ledger of the adjacent return elevation allowing a ‘fly past’ which eliminates the need for non-standard bays.

Corner Return using a 1.3m square bay

The scaffold can incorporate a 1.3m square bay to form the corner. Note the positioning of the 1.3m Intermediate Transom to allow two

runs of scaffold boards to butt together at right angles without overlapping.

Typical Tubular Cuplock Access Layouts

7 Tank Phosphating at WSL

Adjustable Base

The Adjustable Base is used with all scaffold systems and some formwork systems.

It has a solid stem of 32mm, 36mm nominal diameter which has a nut restraint to ensure the stem always has a minimum engagement

into the Standard of 150mm.

Adjustable Base (Solid) –Form/Scaf

The adjustable base is also made of 4mm thick pipe, 38mm outer diameter with threading with rolling machine.

Adjustable Base &U Jacks

150150

en

h

Lg

tA

6mmplate

nh

L

eg

tB

32mm solid rod with base plate 150X150X6

Code Size Length-A Length-B Weight

(mm) (mm) (mm) (kg)

32ABJ 01 350mm 225 125 3.5

32ABJ 02 450mm 325 125 4.1



(mm) (mm) (mm) (kg)

36ABJ 01 350mm 225 125 3.8

36ABJ 02 450mm 325 125 4.6

36ABJ 03 550mm 400 150 5.4

36ABJ 04 650mm 500 150 6.2



(mm) (mm) (mm) (kg)

38ABJ 01 350mm 225 125 2.7

38ABJ 02 450mm 325 125 3.0

38ABJ 03 550mm 400 150 3.3

38ABJ 04 650mm 500 150 3.8

38ABJ 05 750mm 600 150 4.1

Adjustable Base & U Jacks


32ABJ 01 350mm 225 125 3.7

32ABJ 02 450mm 325 125 4.3


36ABJ 01 350mm 225 125 4.6

36ABJ 02 450mm 325 125 5.4

36ABJ 03 550mm 400 150 6.2

36ABJ 04 650mm 500 150 7.0


38ABJ 01 350mm 225 125 2.9

38ABJ 02 450mm 325 125 3.2

38ABJ 03 550mm 400 150 3.5

38ABJ 04 650mm 500 150 3.8

38ABJ 05 750mm 600 150 4.1


(mm) (mm) (mm) (kg)


(mm) (mm) (mm) (kg)


(mm) (mm) (mm) (kg)

120

75

100

travel adjustment

Holesfor nailng

Adjustable U-Head/Stirup Head

The Adjustable U-Head is used with scaffold systems & formwork systems.

It has a solid stem of 36mm nominal diameter which has a nut restraint to ensure the stem always has a minimum engagement into the

Standard of 150mm.

The U-Head is capable of accepting twin 100mm wide bearers.

Adjustable U-Head (Solid) –Form/Scaf

L

en

gth

Be

nh

L

gt

A

1.0 - 2.50m

Transom

L

W

L

P

Cross Section of Transoms

1.8m & 2.5m

Transom Beam

1.8 2.5m3.00m

Transom Truss

TransomSection

Section for all Trusses

P = Working Load Limit for Point Load

W = Working Load Limit for Uniformly

Distributed Load

General Notes:

1 Working Load Limits (P & W) may be

limited by other components or assemblies.

Working Load Limits

General Technical andApplication AccessWork System

Transoms** Note:• Loads W and P shown are not simultaneous loads.• The Transom Working Load Limits shown in the table. Typically, this limitation applies to working platform widths equal to transom size 'L' shown.

CUPLOCK Transom Beams and Transom Trusses

3 Plank

P ? 2.0kN

General Technical & Application Access Work System

• All Planks meet point load requirement specifi ed for Heavy Duty Loading to AS1576.1• The sum of individual loads applied to planks must not exceed the Duty Live Load for the platform per bay.

L (m) P (kN)

1.25 4.1

1.80 2.8

2.5 2.1

Platform Brackets

Diagonal Braces Shear Capacityof Cup

P = Working Load Limit for Point Load W = Working Load Limit for Uniformly Distributed LoadGeneral Notes:1 Working Load Limits (P & W) may be limited by other components or assemblies.

Planks

L

P

65

225

P ? 4.4kN

For all standard sizes

1 Plank

P ? 2.0kN

2 Plank

P ? 2.0kN

P ? 17kN

Total Load ? 34 kN Max

P ? 17kN

Paintshop at WSL

Hot Oven for Drying

General Technical & Application Access Work SystemFormwork Applications

General

• Footings and/or foundation shall be satisfactory to support the imposed loads and prevent differential

settlement.

• All Standards shall be erected plumb.

• After squaring up the initial Standards on the first bay, plan bracing is helpful to hold them during

erection.

• Each bay must have Ledgers/Transoms connected at the cup positions nearest the Adjustable Bases or

Adjustable U-Head Assemblies, for example at top and bottom of each leg (and at intermediate

positions at design lift heights).

• The most recommended type of falsework is built by having continuous lines of Ledgers in both

directions.

• When very long runs of falsework are to be constructed consideration shall be given to dividing the

structure into smaller sections to avoid the build up of adverse tolerances.

• No more than one spigot joint per Standard is allowed between vertical lifts of Ledgers/Transoms.

• Spigot Joints shall be avoided in Base Lifts.

• Joints in Standards should be staggered if possible.

Bracing

• Bracing shall satisfy two conditions:

(1) Provide nodal restraint.

(2) Transfer transverse forces to supports.

Scaffolding requires that each restraining element be designed to transfer a

transverse load equal to the sum of 0.025 times the axial force in the compression member at the location

of the restraint and an additional load equal to half that value for each additional compression member

being restrained, up to a maximum of seven members. This load shall be assumed to act in addition to

other loads.

• All nodal points which are considered in defining lift heights shall be restrained.

• The correct amount of bracing shall be calculated, however a minimum amount must always be used.

This requires one complete bracing system from top to

bottom on each row of Standards, once in every four bays, in each direction.

Bracing can be provided externally (for example, using the permanent structure to act as a brace, in this

case it shall be stated in the project documentation with the magnitude of the force) or internally by the

bracing system.

• Bracing shall be installed immediately after each lift has been erected, and as close as possible to the

node points (not more than 100mm from the node point).

• Transverse loads must act at node points on the Standards where Ledgers/

Transoms are fitted (no secondary bending moments are permitted).

• If any brace is not continued to the support and is terminated within the structure, the vertical

compression component of the bracing force must be added to all other vertical compression forces and the total shall not exceed the

published WLL. The horizontal component of the force must also be transferred to a suitable support, ie via butting/tying to a suitable

structure or other suitable bracing system as required.

• When the formwork deck is not restrained (for example,

no permanent structure like walls or columns to provide

lateral restraint) particular care shall be taken in the

design to restrain the formwork deck and top Adjustable

U-Heads.

• Individual towers or narrow falsework systems shall be

fully and effectively braced and the stability of the system

be investigated in the design. The slenderness ratio of the

system as a whole shall not be greater than that of the

individual compression members.Internal Standard External Standard

CUPLOK Ledger/Transom

CUPLOCKStandard

CUPLOCKStandard

Plan View

Applied Load < WLL

Adjustable Base

Suitable footing and foundation

Adjustable U-Head

Spigot Joint

Node

Ma

in li

ftTo

p li

ftM

ain

lift

Ba

se li

ft19

011

0

CUPLOK Spigotted Standard

CUPLOK Open Ended Standard

General Technical & Application Access Work SystemCUPLOCK Standards Formwork ApplicationsMaximum Bay Size 1.8 m X 1.25 mWorking Load Limits for internal Standards

Notes:• These graphs give Working Load Limits for internal Standards which are erected plumb, loaded concentrically and effectively braced in the major directions.• For external Standards reduce Working Load Limits by 15%.• These graphs must be read in conjunction with the Guidance Notes on page 11.

Adjustable Base/Ad justable U-Head Extension (mm )

Wo

rkin

g L

oa

d L

imit

(kN

)

20

25

30

35

40

0 100 200 300 400 500

1.0m Lift

1.0m Lift

1.0m Lift

Adjustable Base/Adjustable U-Head Extension (mm)

Wo

rkin

g L

oa

d L

imit

(kN

)

15

20

25

30

0 100 200 300 400 500

1.5m Lift

1.5m Lift

10

Adjustable Base/Adjustable U-Head Extension (mm)

Wo

rkin

g L

oa

d L

imit

(kN

)

15

20

25

30

0 100 200 300 400 500

2.0m Lift

10

CUPLOCK Assembly Recommendations

The following scaffold Assembly Recommendations will give you the foundation principles to assemble a basic scaffold structure.

Through experience with the system, different and more complex configurations can be assembled.

Persons erecting or dismantling the components should be competent in this type of work.

For safety reasons, we recommend that no less than two erectors work as a team to erect CUPLOCK.

Notes:

• Where assistance is required in erecting more complex designs other than Standard façade type independent scaffolding and

configurations not shown in these recommendations.

• In certain areas scaffolding may be exposed to high winds and as such special precautions regarding tying in and cladding removal

can apply.

• In some cases, particular configurations of scaffolds and particular sites may require scaffolders to use safety harnesses and lanyard

systems to provide protection against a fall when erecting the scaffold over a void or lean out from the scaffold or supporting structure

without the protection of a guardrail.

Risk Management

When planning the erection of any scaffolding, a site specific Risk Assessment process must be carried out. Generic Hazard

Identification/Risk Assessments/Control method profiles and Safe Work Methods Statements for the erection, dismantling and the usage

of scaffolding equipment. Hazard Identification and Risk assessments and Safe Work Methods Statements would need to be generated

for specific projects.

Manual Handling

As part of the risk management processes we draw your attention the requirement that scaffolders must, aspart of their competency, be

competent in manual lifting techniques. Therefore, Scaffolders erecting, altering or dismantling scaffolding must follow the manual

handling guidelines published by Regulatory Authorities or other guidelines and codes of practice recognised as being acceptable by

such Regulatory authorities.


Blade ends of horizontal members (Ledgers or Transoms) are located in the bottom cup. The top

cup is then slid down over the top of the blades and is rotated until it engages the locking bar.

The top cup is tightened by striking its lugs with a hammer. The inclined spiral top edge of the top cup acts against a fixed locking bar on the Standard to wedge the top cup tightly around the blades providing a positive and rigid

connection.

Simple Method of Component Connection

Start here at top

CUPLOCK Assembly Recommendations (cont)

1 Before commencing the erection of any CUPLOCK scaffold, care should be taken to see

that the ground is suitable and clear of loose rubble to provide a stable base and clear

access for erection. On soft or made up ground, the scaffold should be erected on adequate

timber soleplates. As a general rule, each soleplate should be long enough so that it

supports at least two Standards. Bricks or masonry blocks are not suitable and should not

be used.

2 Check whether or not platform brackets are required adjacent to the workface. If so, you will

need to make allowance for the width of the platform brackets and increase the distance

between the workface and the closest Standard.

3 Commence erection - where possible - on the highest point of the ground and work down

the incline - this will make levelling easier as the scaffolding progresses horizontally.

4 Lay out the Ledgers and Transoms for the fi rst bay in their approximate positions. Then

insert an Adjustable Base into each of the first pair of Standards.

5 Where foundations are not level use Adjustable Bases and always start erecting the scaffold

from the highest point of the work site. Set the nut of the Adjustable Base near (not at) the

bottom of the threaded stem to allow maximum adjustment as the scaffold progresses to

lower ground levels.

6 Connect the Standards with a Transom in the lowest cup joint, by inserting the blades into

the bottom cups. Approximately level the transom by raising or lowering the Adjustable

Base. Always start the scaffold with a 3 metre Standard on the outside face and a 2 metre

Standard on the inside.

7 With one erector still holding the first pair of Standards, the second erector inserts an

Adjustable Base into the third Standard and connects it to the fi rst pair with a Ledger. The

upper cups can then be dropped temporarily into the locking position. The structure is now

self supporting and the fourth Standard can now be connected by a further Ledger and

Transom and the bay levelled.

8 The bay can now be levelled. Starting from the highest point use a spirit level to adjust the

bases so that Ledgers and Transoms are level. Accuracy in levelling at this stage makes for

a good start.

Do Not Tighten the Top Cups - Yet

9 The bay should now be squared in plan and correctly located in relation to the structure

being scaffolded. Check



squareness across the diagonally opposite

Standards. Checking squareness is assisted

by placing the recommended number of

Planks between Transoms and ensuring that

Planks sit correctly with an even gap between

the ends of the Planks and the supporting

Transom. If the Standards are moved an

appreciable distance in the squaring up

process, then recheck the levels. Fix a

Diagonal Brace to the outer face and end face

of the first bay. Always start by fixing the brace

to the upper cup first: this makes for safer

handling.

10 The first bay of CUPLOCK is completed by

locating the upper Ledgers and Transoms. Top

cups can now be tightened in this first bay. No

need for heavy hammering. It is now a simple

matter to extend the scaffold structure by

connecting Ledgers, Transoms and Standards

to the existing bay. The top fixing cups can

now be secured with a hammer.

11 The Working Platform can now be constructed

using Scaffold Planks as decking and

toeboards.

12 Now complete the base layout by adding bays

horizontally, levelling and and positioning each

bay as you go before

tightening cups. Continue

the 2m and 3m Standard

combination for the

fullrun.

Note:

Erection & dismantling of

scaffold bays should be

carried out from a fully

decked platform or a

platform of at least two

Planks wide. Refer to local

statutory regulations.

13 Planks are now moved up to fully deck out the

the first lift. When these Planks remain in

place as a Working Platform, Ledgers are

positioned at 0.5m and 1m above the planked

level to form a guardrail and

midrail. For working

platforms, toeboards on the

outer face are also required.

A Mesh Panel which

incorporates a toeboard 1m

high can be used in lieu of a

midrail and toeboard

14 Additional lifts can now be constructed by

adding further Standards into spigots of the

Standards of the lower lift and staggering joints

wherever possible. Transoms and Ledgers are

placed at platform levels connecting them with

Ledgers and Transoms. Working levels should

be fully decked out and fitted with guardrails,

midrails and toeboards (or Mesh Panels) at the

required positions.

Fully complete the longitudinal erection of a lift

before progressing to the next lift.

Stagger joints in Standards wherever possible.

If 2.0m Standards were used on the inside face

of the first lift and 3.0m Standards on the

outside face of the first lift and each successive

lift uses Standards of the same height ie: inside

and outside both 3.0m or both 2.5m or 2.0m

then the initial stagger of the joints will remain

through the height of the scaffold.

15 Face Bracing

All scaffolds require a certain amount of

diagonal face bracing to eliminate any tendency

for the scaffold to distort or sway.

Before the scaffold goes beyond the second lift,

Bracing should be added to the outside face

and on the ends.

Braces attach to the outward facing of the cup

on the Standard.

Further bracing must be placed on the scaffold

as it progresses in length and height. Braces

should span from lift level to lift level and cross

over joints in Standards and be positioned all

the way to the top of the scaffold.

Diagonal Braces provide stability to the scaffold and are

used to brace adjacent Standards longitudinally or

transversely. Face Diagonal Braces are positioned in the

end bays of a scaffold run on the external face of the

scaffold. They extend from the first cup near ground level

to the top working level. They are typically arranged in an

alternating (zig-zag) manner to provide more stability to

the scaffold. For scaffold runs exceeding 5 bays in length,

intermediate bracing is required where a maximum of 3

bays can be left unbraced. Variations to this spacing must

be checked by the appropriate designer and specified in

the design layout.

End Diagonal Braces are used between end pair of

Standards in the transverse direction. They extend from

the first cup near ground level to the top working level in

an alternating manner.


2.0

m m

ax

Lif

t h

eig

ht

(ty

pic

al)

Typical '? ig ?ag'Longitudinal Bracingalong external face

Alternative 'Node to Node'type Longitudinal Bracingpattern along external face

3 Bays max Unbraced

TransverseBracingat ends

General Technical & Application Access Work System16 TIES

It is essential that scaffolds be tied to the building or suitable structure to prevent inwards or outwards movement of the scaffold. As such

they provide stability and enable effective performance of the scaffold structure as it grows in height and length. As general rule, ties

need to commence where the scaffold height exceeds 3 times its least width.

Typically ties comprise scaffold tube and right angle scaffold couplers and are connected to the Standards with right angled scaffold

couplers. Care must be taken that ties do not obstruct clear access along the full length of the working and access platforms. The

scaffold must not be built to allow it to cantilever more than 4m beyond the last level of ties (see diagram). The following examples

show tie configurations for assembling around columns and through openings.

Note:

Where it is not possible to

use the typical tie

configurations, other tie

methods incorporating drilled

in friction and 'cast-in' type

anchors are available.

Warning:

Tie tubes must not be

attached to Ledgers. Tie

tubes must be attached directly to Standards, if this is not possible then scaffold tube must be fixed between Standards with right angled

couplers and the tie tube is attached to this scaffold tube.

Tie Configuration

The diagram at right shows an example of staggered tie configuration for scaffolding

assembled with 2m lifts and without any cladding, such as shade cloth or other semi or non

porous material. Ties are installed at no more than 3 bays apart for a maximum bay length of

2.5m in the longitudinal direction and 2 bays apart for bay lengths of 3.00m. Ties should have

a 4m overlap in the vertical direction. Cladding the scaffold will cause wind loads to increase

and tie spacings may need to reduce accordingly.

Tie Tubes

Through Ties should be placed as close as possible to the windowreveal and secured with right angle couplers.

Column Tie with

Butt transomPlan View

Box TieDouble Lip or U Tie

Note: When using 3.05m ledgers the max distance between ties is 2 Bays.

2.o

m m

ax

Lif

t h

eig

ht

(ty

pic

al)

4.0

m m

ax

T

ie L

ev

el

he

igh

t o

f fi

rst

4.0

m m

ax

b

ey

on

dti

ed

le

ve

l

4.0

m m

ax

b

etw

ee

ns

tag

ge

red

Tie

s

3 Bays max (7.32m) between ties or

from a tied return

Staggered Tie Points

Staggered Tie Points

One Bay max between Ties at ends with no returns

General Technical & Application Access Work System16 TIES (cont)

Tying to Standards

Ties tubes must be connected to Standards and be parallel to transoms at a position adjacent to the junction of the Transom and

Ledgers, with the following restrictions:

(a) Within 300mm from the underside of the cup at the junction - connected to the front Standard with addition of a Check Coupler.

(b) Further than 300mm from underside of the cup at the junction - Tie connected to both front and rear Standards.

(c) If unable to connect to two Standards then reinforce front Standard for the full height of the lift with scaffold tube and swivel couplers

with couplers attached at 900mm centres.

Note:

The 300mm distance given in (a), (b) and (c) may need to be reduced, subject to the amount of tie force.

Increased distance between tie points

In cases where ties cannot be placed in the correct position, where ties have to be removed, where tie spacings exceed those given in

these assembly recommendations or in scaffolds which extend above the building, with the result that typical tie spacings given in these

Assembly Recommendations cannot be achieved, then consult WSL for technical design assistance with tie spacing and configurations

to suit your specific needs.

Maximum Height of Scaffold

When determining the maximum height of a scaffold, a number of factors must be considered.

• Live load of working platforms, for example Heavy Duty, Medium Duty or Light Duty.

• Number of Working Platforms.

• Live load of Platform Brackets.

• Dead load of scaffold, for example Standards, Transoms, Ledgers, Guardrails, Mesh Guards, Platform Brackets, Planks, Bracing,

shadecloth and chainwire mesh.

• The position of the top tie in relation to the top of the scaffold.

• Wind Loading (in relation to tie forces).

• Strength of the supporting structure for the scaffold.

Scaffolding configurations can vary greatly, so for a CUPLOCK scaffold of typically 1.25m wide, constructed using 2m lifts, braced and

tied in accordance with patterns given in these recommendations, without cladding, with a maximum of two Heavy Duty Working

Platform levels (6.6kN), two levels of Planks and Platform Brackets, guardrails at the outside face at 1m vertical spacing for full height of

scaffold, diagonal bracing for full height, the maximum height of the scaffold scaffold constructed with bay lengths of 3.00m or less is

45m.

Note:

Any additional equipment such as additional planked levels, Working Platforms, Platform Brackets, spurs or the like will increase leg

load and hence reduce the maximum height of the scaffold. Therefore, where assessment shows that scaffold configuration exceeds the

above conditions, consult Engineering Representative for technical design assistance with the maximum heights of CUPLOK and tying

configurations to suit your specific needs.

Within 300m

Tim

e

Add Check Coupler

(a)

More than 300mm Tie

Connect to both Standards

(b)

More than 300mm

Add Check Coupler

Tie

Reinforce Tied Standard

(c)

General Technical & Application Access Work System17 Access and Egress Methods

Every working platform level must be provided with a safe

and suitable access. This can be achieved by means of a

built-in ladder or stair access tower or by direct access from

within the building or structure. Stair access can be

constructed with either Aluminium Stair units or steel Stair

Stringers as outlined on the following pages:

(i) Ladder Access

Ladder access is typically used where only a few persons

need access to the working platform and where tools and

equipment can be delivered separately to the working

platform (such as by rope and gin wheel, materials hoist or

crane).

Ladder access bays can be constructed within the main run

of the scaffold, however, where space permits it is preferable

that a separate ladder access bay be placed adjacent to the main run. Single ladders need to extend at least 0.9m above the

landing level, secured at top and base and successive landing levels should be vertically spaced at no more that 6m.

CUPLOCK Ladder Access Transoms are used to enable the

formation of an opening within the deck through which the

ladder can pass. These Transoms span between Ledgers and

are typically positioned at midspan of the Ledgers or at the

appropriate position to support two shorter length Planks. The

remaining bay width is decked out with Planks that span

between Transoms in the usual manner.

Important:

Ensure that guarding and edge protection is installed around

openings in Ladder Access Bays that are in or beside working

platforms.

Ladder Access

Ladder Access BayPlan View

3.2m Braces2.4m Ledger s

2.44m

Ladder secured to alternate each side of Bay

Install guarding & edge protection around opening

1.3m Transom s

Ladder Access Transomsecured between Ledger s

1.2

7m

1.27m 2.4m Planks x 3

1.3m Planks x 2

Standard

Elevation

6.0

m m

ax

2.44m

0.9

m m

ax

Ladder s inclined at slope of between 4 to 1 and 6 to 1

End View

Tie Ladder Access Bay at Standardsevery 4.0m ma x

4.0

m m

ax

1.27m

General

Before commencing the erection of any WSL CUPLOCK support arrangement a risk assessment should

be carried out.The grid line should be marked out to ensure the legs of the structure are positioned

correctly. Sole plates must be positioned under each Adjustable Base to spread the load effectively to

the foundation. Sole plates may also be required when assembled on a concrete slab. All Adjustable

Bases and Standards must be checked as they are erected to ensure they are WSL CUPLOCK

components; the use of CUPLOCK Standards or CUPLOCK Adjustable Bases will reduce the structure’s

load capacity to that of CUPLOCK losing the advantage of the higher WSL CUPLOCK loading capacity.

Erection should commence from the highest ground level to allow the best use of the adjustability of the

bases. This should have been considered in the form design so that each leg reaches its correct height.

Constructing the first bay. The first four Adjustable Bases are placed in position, then two Standards are

placed over two of the bases (making sure the Standards are the correct size as shown on the drawing).

A Ledger is then connected to the lowest bottom cup on the Standards joining the two Standards

together. With one erector holding the first pair of Standards, the third Standard of the first bay is then

placed in position over its Adjustable Base and is connected to the other Standards with a Ledger. The

unit is then self standing and the remaining Standard can be placed and connected. In this way the first

bay is formed, it must then be levelled by placing a spirit level on the top of the Ledgers and adjusting

the nut on the Adjustable Base taking care to maintain the lowest setting where indicated on the

drawing. The first lift of Ledgers/Transoms is then added and Adjustable Braces are fixed to two

adjacent sides of the bay to maintain the rigidity of the bay (refer also to Guideline Notes on page 12).

From this first bay other bays are erected in a similar manner. If the structure is a birdcage layout (multi

directional bay construction) then it is simply expanded outwards by adding new Standards and

connecting them to the structure with Ledgers or Transoms as applicable. If the formwork structure is a

series of towers, then each tower is built similar to the first bay. In either type of construction as each

subsequent bay is added it must be levelled. The structure is built upwards by fixing the Ledgers for

more lifts in height adding additional Standards as the drawing dictates. The last Standard must be a

WSL CUPLOCK Open Ended Standard to accommodate the WSL CUPLOCK Adjustable Base or

Adjustable U-Head Assembly. After the structure has been erected the formwork soffit bearers are

placed in the U-Heads and are levelled by means of the screw adjustment of the Adjustable U-Head

Assembly. The structure must be inspected by a suitably experienced competent person to ensure it has

been erected exactly as shown on the formwork design drawing. Dismantling Care must be taken when

dismantling as the stability of the structure must be maintained. Ledgers must not be removed from a

level containing scaffold planks until the planks have been removed. Components must be passed down

hand to hand and not dropped or thrown down onto the ground as this practice can cause injury to

personnel and damage to the components.

WSL CUPLOKErection Guide

Example of Side Elevation with Soffit

Formwork Restrained Externally by Walls and Columns

• Soffit formwork is restrained externally in both directions (eg by

walls, columns*).

• Braces are terminated at every lift.

• Bottom jacks are not restrained.

(Only where braces are not required to transfer external

transverse forces to foundation/footing as determined by design).

* Permanent structure(Project Engineer must verify suitability of

Structure.)

Adjustable Braces

Adjustable Base with U-Head

Adjustable Jack Braces used longitudinally and transversely

Open ended WSL CUPLOCK Standard

Ledger

A A

ger Ledical)(typ

Max 100mm (typical)

Adjustab e le Brac(typical)

Sectio A-An

Note: Base plates may be required to be anchored to resist the horizontal and/or uplift components of the bracing force.

WSL CUPLOCK Bracing Method Examples

Example of Side Elevation with Soffit

Formwork Restrained by Internal Bracing

• Soffit formwork is not restrained externally

• Top deck is restrained with internal bracing.

• Bracing is continued from support to top Ledger to Adjustable

U-Head.

• Continuous bracing is the preferred method.

• Bottom Adjustable Bases are restrained.

Example of Side Elevation (Tower Confguration)

Conventional formwork

WSL CUPLOCKOpen Ended Standard

WSL CUPLOCKAdjustable Base

Adjustable Braces

Ledgers

Conventional formwork

WSL CUPLOCKAdjustable Base with U-Head


WSL CUPLOCKAdjustable Base

Adjustable Braces

Ledgers

Adjustable Braces

ample of ation (Ro ration)Ex Side Elev w Confgu

Example of Front Elevation (Row or Tower Confguration)Conventional formwork

Le

dg

ers

WSL CUPLOCKAdjustable Base with U-Head


WSL CUPLOCK Adjustable Base

Adjustable BracesThis symbol indicates that the top deck is restrained externally in both directions,(eg by walls, columns).

:Note

WSL CUPLOCK Bracing Method Examples

8 Leg Staircase Tower

Plan area: 1.8m x 4.4m

This larger configuration can be built to a height of 38m, subject to ties and loadings. Landing platforms are 1.3m wide and the staircase

is 0.8m wide. It can be built in lift heights of 1.5 or 2m and using either aluminium or steel stair units.

The plan module is 4.4m long overall, incorporating a centre bay of 1.8m and two 1.3m landing modules at either end. Omega transoms

are used in conjunction with timber or steel battens to form the landing platforms. The width of the tower is 1.8m. Exit from the tower at

upper levels is made from the top landing platform by removing the appropriate guardrail.

CUPLOCK staircase towers provide a safe, user-friendly solution and are quick and simple to erect. Additionally, by speeding the

circulation of staff, staircase towers generate significant time savings for everyone on site. There are four basic staircase options in the

CUPLOCK range; from simple, compact units to high capacity, full public access models. All use the basic CUPLOCK system to

provide the main structure - with a small number of additional staircase components, including a choice of steel and aluminium stair

Units. The CUPLOCK staircase tower offers a stable, rigid structure designed with a key emphasis on user safety.

• Broad landing platforms with steel or timber battens

• Full hand railing to stairs and landings with double guardrails

• Stairways are rigid and provide firm, non-slip treads to ensure maximum security for users

• The removal of potentially hazardous deck openings normally created by ladder access

Staircase Towers

Staircase sizes

CUPLOCK staircase towers are based on three plan layouts, using 8 leg tower structures. Staircase

flights are available in steel, aluminium and modular form - (separate stringer and tread units), for

maximum flexibility. Each staircase type comes in 1.5m or 2m lifts. Different lift sizes may be

combined in the same tower to suit platform Levels.

Working Load Limits (WLL) given hereafter may be used in multi-bay systems when

the requirements as set out in the General Guidance Notes and the Bracing Guidance

Notes on page 12 are met. Working Load Limits as shown on the following pages are

for two cases: Case 1: Bottom Adjustable Bases and top Adjustable U-Head

Assemblies are restrained in both directions. Case 2: Bottom Adjustable Base is not

restrained but top Adjustable U-Head Assembly is restrained as Case 1.

• Both cases cover internal and external Standards, each case has separate tables for

1.0m, 1.5m and 2.0m lifts. Suitable bracing has to be designed for the system.

• The eccentricity 'e' as referred to on following tables and graphs is the eccentricity of

the applied load or the reaction as appropriate.

• To determine the WLL per Standard/leg, the least value of the appropriate tables

shall be used for each case.

• Self weight of the components must be considered and added to all other vertical

loads as appropriate.

WSL CUPLOCK

SUPERCUPLOK Bottom Adjustable Base

Suitable footing and foundation

WSL CUPLOCK

Top Adjustable U-Head Assembly

Spigot Joint

Node

Ma

in li

ftTo

p li

ftM

ain

lift

Ba

se li

ft

Applied load < WLL

19

011

0

WSL CUPLOCK

Open Ended Standard

WSL CUPLOCK

Spigotted Standard

Definitions – Plan View

Internal Standard External Standard

'A' Bottom Adjustable Base is NOT restrained in the 'X' direction

'B' and 'C' Bottom Adjustable Bases are restrained in the 'X' direction

A B C

WSL CUPLOCKAdjustable BraceCUPLOCK

Ledger/Transom

Note: Same applies to 'X' direction. 'Y' direction is 90 to the 'X' direction0

Defnitions – Side ViewWSL CUPLOCKAdjustable Brace

Adjustable Brace

Suitable lateral support

CUPLOCK Ledger/Transom

direction X direction X direction

WSL CUPLOCKStandard

WSL CUPLOCKStandard

X

Y

Formwork Applications

General1 The Standards, Adjustable Bases and Adjustable U-Head Assemblies must be checked to ensure that only WSL CUPLOCK

components are being used. 2 Footings and/or foundation shall be satisfactory to support the imposed loads and prevent differential settlement.3 All Standards shall be erected plumb.4 After squaring up the initial Standards on the first bay, plan bracing is helpful to hold them during erection.5 Each bay must have Ledgers/Transoms connected at the cup positions nearest the Adjustable Bases or Adjustable U-Head

Assemblies ie: at top and bottom of each leg (and at intermediate positions at design lift heights).6 The most recommended type of falsework is built by having continuous lines of Ledgers in both directions.7 When very long runs of falsework are to be constructed, consideration shall be given to dividing the structure into smaller sections to

avoid the build up of adverse tolerances.8 No more than one spigot joint per Standard is allowed between vertical lifts of Ledgers/Transoms.9 Spigot Joints shall be avoided in Base Lifts unless Adjustable Bases are braced.10 Joints in Standards should be staggered if possible.Bracing1 Bracing shall satisfy two conditions:

(a) Provide nodal restraint.(b) Transfer transverse forces to supports.WSLtandard requires that each restraining element be designed to transfer a transverse load equal to the sum of 0.025 times the axial force in the compression member at the location of the restraint, and an additional load equal to half that value for each additional compression member being restrained, up to a maximum of seven members. This load shall be assumed to act in addition to other loads.

2 All nodal points which are considered in defining lift heights shall be restrained. When braces are required to only provide nodal restraint then bottom Adjustable Bases may be used unrestrained. In this case the tables for CASE 2 shall be used. Top Adjustable U-Head Assemblies shall always be restrained, externally or internally). See also notes 4 and 8.

3 The correct amount of bracing shall be calculated, however a minimum amount must always be used. This requires one complete bracing system from top to bottom on each row of Standards, once in every 6 bays, in each direction.

4 Bracing can be provided externally (ie using the permanent structure to act as a brace, in this case it shall be stated in the project documentation with the magnitude of the force), or internally by WSL CUPLOCK bracing system.

5. Bracing should be installed immediately after each lift has been erected and fixed to the Ledgers as close as possible to the node points (not more than 100mm from the node point).

6. Transverse loads must act at node points on the Standards where Ledgers/Transoms are fitted (no secondary bending moments are permitted).

7. If any brace is not continued to the support and terminated within the structure, the vertical compression component of the bracing force must be added to all other vertical compression forces and the total shall not exceed the published WLL. The horizontal component of the force must also be transferred to a suitable support (ie via butting/tying, to a suitable structure or other suitable bracing system as required).

8 When formwork deck is not restrained (eg no permanent structure like walls or columns to provide lateral restraint) particular care shall be taken in the design to restrain the formwork deck and top Adjustable U-Head Assemblies.

9. Individual towers or narrow falsework systems shall be fully braced and the stability of the system be investigated in the design. The slenderness ratio of the system as a whole shall not be greater than that of the individual compression members.

Guideline Notes

For 2.44m x 2.44m maximum bay sizeCASE 1:Top Adjustable U-Head: Restrained, e = 0, 8, 15, 25 and 55mmBottom Adjustable Base: Restrained, e = 0, 8 and 15mmWorking Load Limit - WLL (kN) per Standard/LegNote: WLL for Bottom and Top Adjustable Bases or U-Heads are shown beneath their shaded area.

Notes:1 WLL for the lift is the minimum value of WLLs for Top and Bottom Adjustable Bases/U-Head Assemblies.2 e = Load eccentricity (mm)3 Limit State Conversion Factor = 1.54 These charts must be read in conjunction with the Technical Information and the Bracing Guideline Notes onpages 11 and 12.5 It is recommended to consider the load with at least 8mm eccentricity for possible unintentional eccentricity.

Bottom Adjustable Base

Top Adjustable U-Head

Extensione = 0mm e = 8mm e = 15mm e = 25mm e = 55mm

(mm)

100 75.9 70.4 66.2 50.6 27.3

200 75.4 70.0 64.9 47.9 26.2

300 75.0 69.6 60.2 44.4 25.3

400 74.7 69.5 54.6 41.2 24.0

500 74.3 62.5 48.9 37.7 22.8

600 73.9 54.9 43.8 34.5 21.4

Lift = 1.0m, Internal Standard




(mm)

100 72.7 66.4 58.9 47.8 27.3

200 72.3 66.2 58.1 47.3 26.2

300 71.8 65.7 57.5 44.4 25.3

400 71.5 65.3 54.6 41.2 24.0

500 71.0 62.5 48.9 37.7 22.8

600 70.7 54.9 43.8 34.5 21.4

Lift = 1.0m, External Standard




(mm)

100 51.4 47.7 44.8 39.5 27.3

200 51.1 47.6 44.6 39.2 26.2

300 50.9 47.3 44.4 39.1 25.3

400 50.5 47.1 44.1 38.7 24.0

500 50.4 46.9 43.7 37.7 22.8

600 50.1 46.7 43.4 34.5 21.4





(mm)

100 32.8 32.1 31.5 30.7 26.9

200 32.8 32.0 31.5 30.7 26.2

300 32.8 32.0 31.4 30.6 25.3

400 32.7 32.0 31.4 30.6 24.0

500 32.6 31.9 31.3 30.5 22.8

600 32.6 31.9 31.3 30.5 21.4





(mm)

100 47.1 43.0 39.4 34.0 23.9

200 46.8 42.8 39.3 33.8 23.8

300 46.5 42.5 38.8 33.5 23.8

400 46.2 42.3 38.5 33.3 23.7

500 45.9 42.1 38.3 33.0 22.8

600 45.7 41.9 38.0 32.9 21.4





(mm)

100 29.3 28.5 27.8 26.9 21.4

200 29.3 28.4 27.8 26.9 21.3

300 29.2 28.4 27.7 26.8 21.3

400 29.2 28.3 27.7 26.8 21.2

500 29.1 28.3 27.6 26.7 21.1

600 29.1 28.3 27.6 26.7 21.1



For 2.44m x 2.44m maximum bay sizeCASE 2:Top Adjustable U-Head: Restrained, e = 0, 8, 15, 25 and 55mmBottom Adjustable Base: Not restrained, e = 0, 8 and 15mmWorking Load Limit - WLL (kN) per Standard/Leg

Notes:1 WLL for the lift is the minimum value of WLLs for Top and Bottom Adjustable Bases/U-Head Assemblies. 2 e = Load eccentricity (mm)3 Limit State Conversion Factor = 1.54 These charts must be read in conjunction with the Technical Information and the Bracing Guideline Notes on pages 11 and 12.5 It is recommended to consider the load with at least 8mm eccentricity for possible unintentional eccentricity.

Top Adjustable U-Head Bottom Adjustable Base

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 75.9 70.4 66.2 50.6 27.3 100 75.9 70.4 66.2

200 75.4 70.0 64.9 47.9 26.2 200 75.4 70.0 64.9

300 75.0 69.6 60.2 44.4 25.3 300 75.0 69.6 60.2

400 74.7 69.5 54.6 41.2 24.0 400 55.7 55.7 54.6

500 74.3 62.5 48.9 37.7 22.8 500 43.8 43.8 43.8

600 73.9 54.9 43.8 34.5 21.4 600 36.1 36.1 36.1



Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 72.7 66.4 58.9 47.8 27.3 100 72.7 66.4 58.9

200 72.3 66.2 58.1 47.3 26.2 200 72.3 66.2 58.1

300 71.8 65.7 57.5 44.4 25.3 300 62.5 62.5 57.5

400 71.5 65.3 54.6 41.2 24.0 400 45.5 45.5 45.5

500 71.0 62.5 48.9 37.7 22.8 500 32.9 32.9 32.9

600 70.7 54.9 43.8 34.5 21.4 600 26.3 26.3 26.3



Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 51.4 47.7 44.8 39.5 27.3 100 51.4 47.7 44.8

200 51.1 47.6 44.6 39.2 26.2 200 51.1 47.6 44.6

300 50.9 47.3 44.4 39.1 25.3 300 50.9 47.3 44.4

400 50.5 47.1 44.1 38.7 24.0 400 50.5 47.1 44.1

500 50.4 46.9 43.7 37.7 22.8 500 43.8 43.8 43.7

600 50.1 46.7 43.4 34.5 21.4 600 36.1 36.1 36.1



Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 47.1 43.0 39.4 34.0 23.9 100 47.1 43.0 39.4

200 46.8 42.8 39.3 33.8 23.8 200 46.8 42.8 39.3

300 46.5 42.5 38.8 33.5 23.8 300 46.5 42.5 38.8

400 46.2 42.3 38.5 33.3 23.7 400 45.5 42.3 38.5

500 45.9 42.1 38.3 33.0 22.8 500 32.9 32.9 32.9

600 45.7 41.9 38.0 32.9 21.4 600 26.3 26.3 26.3



Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 32.8 32.1 31.5 30.7 26.9 100 32.8 32.1 31.5

200 32.8 32.0 31.5 30.7 26.2 200 32.8 32.0 31.5

300 32.8 32.0 31.4 30.6 25.3 300 32.8 32.0 31.4

400 32.7 32.0 31.4 30.6 24.0 400 32.7 32.0 31.4

500 32.6 31.9 31.3 30.5 22.8 500 32.6 31.9 31.3

600 32.6 31.9 31.3 30.5 21.4 600 32.6 31.9 31.3



Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

e = 25mm

e = 55mm

Extens-ion

(mm)

e = 0mm

e = 8mm

e = 15mm

100 29.3 28.5 27.8 26.9 21.4 100 29.3 28.5 27.8

200 29.3 28.4 27.8 26.9 21.3 200 29.3 28.4 27.8

300 29.2 28.4 27.7 26.8 21.3 300 29.2 28.4 27.7

400 29.2 28.3 27.7 26.8 21.2 400 29.2 28.3 27.7

500 29.1 28.3 27.6 26.7 21.1 500 29.1 28.3 27.6

600 29.1 28.3 27.6 26.7 21.1 600 26.3 28.3 26.3



Standard

Ledger

Transom

Base Plate

Group CompaniesAsian Scaffolding SystemsD-144, Industrial Area, Phase-7, Mohali (Punjab)Ph.: +91-172-2236094, 2237094, Fax: +91-172-4656094

Vishwas Extractions Pvt Ltd.D-100, Industrial Area, Phase 7 Mohali (Punjab)Ph: +91-172-4654042, 4654033

Wheels Scaffolding (India) Ltd.Unit 1: Plot No. 262, Industrial Area, Phase I, PanchkulaPh: +91-172-2585821, 2586753, Fax: +91-172-2585821Unit 2: Plot No. D-138, Industrial Area Phase 7, Mohali (Punjab)

the scaffolding people Scaffolding (India) Ltd.imghost1.indiamart.com/data2/CJ/KM/MY-499323/... · Scaffolding (India) Ltd. the scaffolding people An ISO 9001:2000 Co. Modular Framework

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