Haki UNIVERSAL ALUMINIUM S4 User manual

ALUMINIUM
USER´S MANUAL
HAKI UNIVERSAL S4
© HAKI AB 2019

2
© Copyright HAKI AB, 2019
The reproduction of text and pictures/illustrations without HAKI’s permission is prohibited.
Important information
HAKI’s product liability and user´s manuals apply only to scaffolds that are entirely
composed of components that have been made and supplied by HAKI.
HAKI’s type examination certicate applies only to scaffolds whose materials,
dimensions and design accord with those specied in the documentation upon
which this certicate is based.
HAKI’s scaffold systems must not be erected using components of makes other than
HAKI or be connected to scaffolds of makes other than HAKI. In such cases, a
special study of load-bearing capacity must be carried out. However, HAKI has no
objection to the customary addition of scaffold tubes and approved couplers to the
scaffold.
Adding components from different suppliers may invalidate the insurance cover.
HAKI reserves the right to make technical modications on a continual basis.
This user´s manual is to be used in conjunction with HAKI training courses.
A user’s manual should be provided to the user together with the scaffolding.
The latest versions of HAKI user’s manuals can be downloaded from our website,
www.HAKI.com.
For scaffold structures that are not covered by this user´s manual, please contact
HAKI’s technical department.
Forces and dimensions
1000 N = 1 kN ~ 100 kg
10 N ~ 1 kg
All measurements in mm
HAKI colour code
Horizontals and diagonals are marked with their nominal sizes (bay sizes) and a
colour code. The marking is a useful means of identication when erecting and
handling the scaffold material.
564 1050 1964 3050
700 1250 2050 *3650
770 1550 2500 *4050
1010 1655 2550 *non-stock length

3
HAKI Universal Aluminium S4
PLEASE NOTE: This user’s manual applies solely to scaffolding
erected using only HAKI´s S4 AL standards.
Permitted loads on standards and thus construction heights apply
solely to HAKI´s S4 AL standards.
HAKI’s S6 AL standards must not be incorporated into the
scaffolding structure. HAKI’s S6 AL standard has a wall thickness
of 6 mm and a spigot of Ø 34 mm, which means that it is
incompatible.
On the other hand, HAKI’s older FSSH AL standards, with
welded pockets, may be incorporated into the scaffolding
structure, but lower permitted loads on standards then apply in
accordance with the user’s manual for this system.
In addition, HAKI Universal steel standards may be used, for
example in the base of the scaffolding when loads on standards
are high or when construction heights are great. In such cases,
a special study of the bearing capacity must be carried out.
However, HAKI’s other products, including horizontal members,
decking etc. of steel or aluminium, may be fully employed in the
scaffolding system.
How to identify HAKI’s S4 standard
• Plain spigot centred using eight indentations and fixed using a
strong aluminium through rivet.
• The wall thickness of the standard tubing is 4 mm.
• Rings of pockets are attached to the standard tube using a
special riveting technique.
• HAKI label with white background and the word HAKI in blue.
BASIC INFORMATION

4
TYPKONTROLLERAD
Arbetsmiljöverkets
krav AFS 2013:4
BASIC INFORMATION
HAKI Universal Aluminium
The modular scaffold has been type examined by RISE Research Institutes
of Sweden in accordance with Ordinance AFS 2013:4 of the Swedish
National Board of Occupational Safety and Health Code of Statutes and
SS-EN 12810 and 12811 – Certicate no. 14 55 17 – for load class
1-5 (0,75-4,5 kN/m²).
General data
HAKI Universal Aluminium is erected with bay widths of 700, 770, 1050, 1250 or
1655 mm and normally with a bay length of 3050 mm and 2.0 m between lifts.
LB or ERB beams can be used both as ledger and transom beams.
HAKI decking unit light or AL planks are suitable for decking.
Marking
All components with the exception of locking catches, locking pins etc. come permanently
marked with the HAKI logo and the last two gures of the year of manufacture ( S19).
Guardrail frame
Toeboard
Decking
Wall tie
Standard
Single tube beam
Ledger beam
Base jack
2.0 m
3050 mm

5
LIST OF COMPONENTS
Locking pin 5141257 0.3
Steel
Ø 16 mm
For reinforcing standard joint in 2116000 0.2
connection with tensile load, e.g.
when scaffolding is suspended,
when lifting or when scaffolding is
used for temporary roof.
Name Code Item No. Weight
Standard S4 AL S4 500 4017056 1.6
Standard joint with spigot Ø 38 mm S4 1000 4017106 2.8
Pockets at same level S4 1500 4017156 4.0
Ø 48 mm S4 2000 4017206 5.2
S4 3000 4017306 7.7
Ledger beam LB LB 350 AL 4021031 1.9
With spring locking catch LB 770 AL 4021073 2.9
Ø 34 mm LB 1050 AL 4021101 3.5
LB 1250 AL 4021121 4.2
LB 1655 AL 4021161 4.8
LB 1964 AL 4021191 5.8
LB 2500 AL 4021246 7.2
LB 3050 AL 4021301 8.5
Base jack BS 2071000 5.0
Steel
Ø 38 mm
Adjustable 55-570 mm
Single tube beam ERB ERB 564 AL 4022051 2.5
With spring locking catch ERB 700 AL 4022066 2.7
Ø 48 mm ERB 770 AL 4022073 2.9
ERB 1050 AL 4022101 3.2
ERB 1250 AL 4022121 3.6
ERB 1655 AL 4022161 4.1
ERB 1964 AL 4022191 4.5
ERB 2500 AL 4022246 5.4
ERB 3050 AL 4022301 6.2

6
LIST OF COMPONENTS
Guardrail frame SKRD SKRD 700 AL 4052066 3.3
With spring locking catch SKRD 770 AL 4052073 3.5
SKRD 1050 AL 4052101 4.5
SKRD 1250 AL 4052121 4.8
SKRD 1655 AL 4052161 5.9
SKRD 1964 AL 4052191 6.6
SKRD 2500 AL 4052246 7.8
SKRD 3050 AL 4052301 8.9
Plane brace HDS 3050x1655 AL 4141000 7.0
HDS 3050x1250 AL 4141001 6.5
HDS 2500x1250 AL 4141005 6.0
HDS 2500x1655 AL 4141006 6.3
Plan brace telescopic HDS AL 4141010 6.3
Tie rod tube AL SVF 450x48 AL 4832045 1.2
Tube diameter 48 mm
Permissible load 5.4 kN
Erected with coupler 48x48
Diagonalbrace DS 1250 AL 4122120 4.5
DS 1655 AL 4122160 4.9
DS 1964 AL 4122190 5.4
DS 2500 AL 4122245 6.1
DS 3050 AL 4122300 6.7
Wall tie VST 1000 7111100 5.3
With exible plate VST 2000 7111200 9.1
Ø 48 mm VST 3000 7111300 13.7
Erected with right angle coupler 48x48 VST 4000 7111400 16.7
VST 5000 7111500 21.9
VST 6000 7111600 24.5
Name Code Item No. Weight
Decking unit light W=400 mm 1050x400 4073102 7.1
Load class 3 (2.0 kN/m2) 1250x400 4073122 8.5
1550x400 4073152 10.0
1655x400 4073162 10.5
1964x400 4073192 12.0
2050x400 4073202 12.4
2500x400 4073252 15.1
2550x400 4073257 16.5
3050x400 4073302 18.5
Tie rod tube SVF 450X48 8832046 2.2
Ø 48 mm SVF 600x48 8832061 2.6
Permissible load 9 kN SVF 900X48 8832091 3.7
Erected with right angle coupler 48x48 SVF 1200X48 8832121 4.8

7
LIST OF COMPONENTS
Decking unit light hatch 2500x600 AL 4071253 19.5
Load class 3 (2.0 kN/m2) 3050x600 AL 4071305 24.5
Ladder ST 2100 AL 2091210 3.4
For decking unit with hatch
Decking unit light W=600 mm 700x600 4071072 6.6
Load class 3 (2.0 kN/m2) 1050x600 4071102 9.1
1250x600 4071122 10.6
1550x600 4071152 12.8
1655x600 4071162 13.5
1964x600 4071192 15.8
2050x600 4071202 16.4
2500x600 4071252 19.6
2550x600 4071257 20.0
3050x600 4071302 24.6
Name Code Item No. Weight
Decking unit light hatch and ladder 3050x600 AL 4071306 25.0
Load class 3 (2.0 kN/m2)
AL plank W=200 mm ALP 770x200x90 2153079 3.6
L=770-2500 - Load class 6 (6.0 kN/m2) ALP 1050x200x90 2153105 4.5
L=3050 - Load class 5 (4.5 kN/m2) ALP 1250x200x90 2153125 5.0
ALP 1655x200x90 2153165 6.2
ALP 1964x200x90 2153195 7.1
ALP 2500x200x90 2153255 8.7
ALP 3050x200x90 2153305 10.3

8
AL plank W=320 mm ALP 770x320x90 2153077 4.6
L=770-1964 - load class 6 (6.0 kN/m2) ALP 1050x320x90 2153103 5.7
L=2500 - load class 5 (4.5 kN/m2) ALP 1250x320x90 2153123 6.4
L=3050 - load class 4 (3.0 kN/m2) ALP 1655x320x90 2153163 7.9
ALP 1964x320x90 2153193 9.0
ALP 2500x320x90 2153253 11.0
ALP 3050x320x90 2153303 13.1
Toe board FL 3300x150x32 2025331 6.7
Wood
Toe board clip LF 70 7161006 1.0
Steel
Bracket SK 230 AL 4211024 1.7
Without spigot SK 460 AL 4211047 1.9
With spring locking catch
Ø 48 mm
AL plank W=295 mm ALP 770x295x90 2153078 4.4
L=770-1964 - load class 6 (6.0 kN/m2) ALP 1050x295x90 2153104 5.5
L=2500 - load class 5 (4.5 kN/m2) ALP 1250x295x90 2153124 6.1
L=3050 - load class 4 (3.0 kN/m2) ALP 1655x295x90 2153164 7.5
ALP 1964x295x90 2153194 8.6
ALP 2500x295x90 2153254 10.5
ALP 3050x295x90 2153304 12.4
AL plank W=230 mm ALP 770x230x90 2158077 4.1
L=770-2500 - Load class 6 (6.0 kN/m2) ALP 1050x230x90 2158100 4.9
L=3050 - Load class 5 (4.5 kN/m2) ALP 1250x230x90 2158120 5.6
ALP 1655x230x90 2158160 6.8
ALP 1964x230x90 2158190 7.8
ALP 2500x230x90 2158245 9.5
ALP 3050x230x90 2158300 11.2
LIST OF COMPONENTS
Name Code Item No. Weight
Bracket with spigot SK 564 AL 4211052 3.6
With spigot Ø 38 mm SK 770 AL 4211074 3.9
With spring locking catch
Toe board AL Toe board 564 AL 4161051 1.0
Toe board 700 AL 4161071 1.3
Toe board 1050 AL 4161105 1.9
Toe board 1250 AL 4161121 2.2
Toe board 1655 AL 4161161 2.9
Toe board 1964 AL 4161191 3.5
Toe board 2500 AL 4161251 4.6
Toe board 3050 AL 4161301 5.5

9
Bracket SK 1250 AL 4211121 11.0
With spigot Ø 38 mm
With spring locking
catch
LIST OF COMPONENTS
Name Code Item No. Weight
For other accessories, see HAKI Component list.
Stair UTV 3050x2000 AL 4102302 29.2
UTV 2500x2000 AL 4102247 22.9
Stair handrail HL 3050x2000 AL 4058300 10.3
HL 2500x2000 AL 4058245 9.2
Guardrail post SRS 1000 7015001 7.3
Steel
For erection on ledger beam LB
Guardrail post SSKS 23 mm 7015005 6.1
Steel SSKS 22 mm 7015006 6.1
Jaw width 23 mm
or 22 mm
For erection on single tube beam ERB
Lattice beam 450 AL with pockets FB 2220 AL 4032211 9.9
FB 4100 AL 4032411 17.8
FB 6100 AL 4032611 25.8
FB 8100 AL 4032811 34.0
Lattice beam 450 AL FB 4100 AL 4032410 16.7
FB 6100 AL 4032610 24.3
FB 8100 AL 4032810 32.2
Handrail inner UTV AL G HL inner UTV AL 7058253 11.4

10
Information on safety when erecting and dismantling
1. Before erecting or dismantling a scaffold, try to fence off the working area if possible.
2. The location for the scaffold must be checked in order to prevent risks when erecting,
dismantling and moving the scaffold and to ensure that work can be carried out safely
with regard to level and slope, obstacles and wind conditions.
3. Make sure that all lifting equipment to be used, e.g. chain hoists, lifting ropes, pulley
blocks, etc., has been thoroughly tested and approved by an authorized person in
accordance with local regulations.
4. Check that tools and protective equipment are available at the worksite.
5. Wear appropriate personal safety equipment at all times, e.g. safety harnesses, proper
independent lifelines with suitable xings, etc.
6. When erecting and dismantling a scaffold, robust temporary decking must be used as
temporary platforms for the scaffolders.
7. Always make sure that the safety locking devices that prevent a platform lifting off have
been activated once a platform has been installed.
8. Study all relevant instructions or safety directions from the manufacturers of the various
scaffolds that are to be used.
9. Never climb up a scaffold from the outside. Always use the stairs, ladders or climbing
frames that are designed to provide access to the upper decks from the inside of the
scaffold.
10. If the scaffold is to be used outdoors, erection or dismantling work must be discontinued
if the weather conditions are too bad. Make sure that all loose components are properly
xed before leaving the scaffold.
11. Scaffolding work must be done by “competent workmen” under the supervision of a
“competent person”.
12. Raising and lowering of parts, material and tools using ropes or slings must be carried
out in a protected lifting area.
13. Lifting equipment must not be tted to scaffolding unless ties or equivalent devices are
secure.
14. Beware of any overhead power lines nearby.
15. Always observe and comply with the regulations issued by the local authorities
concerned.
Instructions for dismantling
1. Dismantle the scaffold from the topmost lift.
2. Start by taking down the toe boards, mid-rails and hand rails.
3. Take down the topmost decking, then the stairs.
4. Take down the horizontals and diagonals of the topmost lift.
5. Finally, take down the standards of the topmost lift.
6. Repeat steps 3 to 5 to take down the second topmost lift and continue the whole
process until the tower is completely dismantled.
7. Do not throw or dump the material onto the ground. This may damage the material or
cause personal injury. The material must be lowered down to the ground by means of
ropes or slings or carried down by hand.
8. Ties must not be removed before the dismantling process has reached the level in
question.

11
ERECTION PROCEDURE
1.
2.
3.
1. Set out the material for the base
and the rst lift along the facade.
Place the base jacks about
200 mm out from the facade and at
the modular distances that are to be
used.
If inside brackets are to be used,
increase the distance accordingly.
The greatest permissible distance
between wall and work platform is
300 mm.
Always start erection at the point that
is situated highest.
2. Erect the rst four standards,
linking them with the transom and
ledger beams.
The beams are tted to the lowest
group of pockets on the standards.
Check that the beam locks are in the
locked position after tting.
3. Fit the SKRD guardrail frames
along the scaffold at a level of 1.0 m.
Guardrail frames must be tted in
each bay and at each lift level on the
outside of the scaffold.
Alternatively, t the vertical diagonal
braces.
Continue erecting the base of the
scaffold bay by bay using base jacks,
standards, transoms and ledger
beams and guardrail frames.
If HAKI UTV stairways are to be used,
plan a 2500 or a 3050 mm bay for
the ascent.
From time to time, check the levels in
both the transverse and longitudinal
directions using a spirit level and
adjust using the swivel base jacks.
If there are major differences
in levels, adjust each individual
standard in relation to the support
surface so as to make the beams
level.
Befor erecting the scaffold, check and atten out the ground. The support surface must
not be cubject to uneven settlement. Its bearing capacity may be improved with the help
of mud sills.

12
ERECTION PROCEDURE
4.
5.
6.
4. Fit the transom and ledger
beams for the second lift 2.0 m
above the beams that were tted
rst.
Fit HAKI decking units to the
transom beams. Don’t forget to lock
the decking.
Fit the second set of 3000 or
2000 mm standards.
Install SKRD guardrail frames
for the second lift and t the
toeboards.
Don’t forget the end guardrails.
5. Fit the transom and ledger
beams for the third lift and then
decking, guardrails and toeboards.
Don’t forget to lock the beams and
decking.
Anchor the scaffold at a height of
approximately 4.8 m using tie rods
and clamps.
Check that the xings in the
facade can carry the forces
involved.
6. Continue erecting the
subsequent lifts as described
above.
Use approved lifting aids for
transport of the material.
If steel/aluminium planks are used,
these should be locked in the outer
bays. The planks otherwise lock
each other.
When decking using scaffold
boards, these must be provided
with yokes if the span exceeds
2.5 m.
Dismantling is done in the reverse
order.
Scaffolding material must not be
thrown down from the scaffold.

13
ERECTION PROCEDURE
7.
8.
9.
External stairways
There are two options for external
stairways: the HAKI UTV of steel
and the HAKI UTV of aluminium.
Both options are tted in a similar
manner.
7. The UTV stairway is tted in an
external bay using ERB 700/770
and LB/ERB 2500/3050 beams.
The stairway is usually built into the
scaffold proper. Alternatively, the
stair tower is erected using separate
standards.
Set out the base jacks and erect the
standards. Fit the ERB 700/770
and LB/ERB 2500/3050 beams
into the lowest group of pockets. Fit
the transom beams for the second
lift too. At other levels, the handrails
replace the ledger beams.
8. Fit the hooks of the UTV stairway
over the tubes of the transom
beams and lock the stairs using the
locking device.
Fit the handrail at the 1.0 m level
and provide the top end with SKRD
700/770 guardrail frames. Fit
the next set of standards, transom
beams, stairs, handrail and
guardrail frames.
9. Continue erection up to the
desired height.
At the top level, an ERB
2500/3050 beam is tted
externally in the scaffold. An SSK
1000 guardrail post is tted on the
beam so that an SKRD 1964/2500
guardrail frame can be tted
between post and standard.
Alternatively, an LB 2500/3050
beam can be combined with an
SRS 1000 guardrail post.
The guardrail frame provides
fall protection at the top level of
the scaffold. At other levels, the
next stairway provides sufcient
protection.

14
LOADING CONDITIONS
Load classes
Refers to EN 12811-1
Load
class Uniformly distributed
load [kN/m2]
Concentrated
load on area
0.5mx0.5m [kN]
Load of one
person on area
0.2mx0.2m [kN]
Partial area load
Load [kN/m2] Partial area [m2]
1 0.75 1.5 1.0 - -
2 1.5 1.5 1.0 - -
3 2.0 1.5 1.0 - -
4 3.0 3.0 1.0 5.0 0.4 A
5 4.5 3.0 1.0 7.5 0.4 A
6 6.0 3.0 1.0 10.0 0.5 A
Base jacks
The scaffold is erected on base jacks of
type BS, which are adjustable between 55
and 570 mm. This means that it is always
possible to adjust the standards so as to
make the beams level.
Beams
The scaffold is erected using LB AL or
ERB AL beams as ledger and/or transom
beams with 2.0 m between the lifts.
Each lift must be provided with beams on
both the inside and outside. The bottom
lift must always be placed at the lowest
possible level.
Decking
HAKI decking units are used for decking. These are available in all bay sizes and with
widths of 400 and 600 mm.
Alternatively, HAKI aluminium planks may be used. These units are available in all bay
sizes and with widths of 170, 200, 230, 295 and 320 mm.
Further alternatives are aluminium or wooden gratings. These are intended for bay
widths of 1250 or 1655 mm. The gratings are laid on the scaffolding ledgers, transverse
to the scaffold.
Decking may also be done using 195 x 50 mm scaffold planks, class K24.
Standards
Standards of length 3000 or 2000 mm are
normally used in the scaffold.
Standards shorter than 2000 mm may only
be used as landing standards.
Guardrails
Decked lifts must be provided with guardrail
frames or double guardrails and toeboards.
The height of the guardrail must always be
at least 950 mm.
Access ways must be provided with double
handrails.
Load classes decking
Decking Width [mm] Length [mm] Load class
Decking unit light 400, 600 1050 - 3050 3
AL plank
170 - 230 1050 - 2500
3050 6 5
295 - 320 1050 - 2050 2500
3050
6
5
4
A=the area between two pairs of standards

15
LOADING CONDITIONS
Bracing and tying-in
Vertical diagonal bracing between
the outside standards must be
installed in every 5th bay and always
in the end bays. SKRD guardrail
frames can replace vertical diagonal
braces, but must then be tted in each
bay and at every lift level, including
the bottom level.
Plan braces must be tted in every
5th bay and always in the end bays
at every 12th metre in height.
Each inside standard must be tied
to the facade or equivalent at every
4th metre in height adjacent to the
node between standard and beam.
The lowest tie must be tted no more
than 4.8 m above ground level. There
must be ties that can carry horizontal
forces on at least every 5th pair of
standards along the scaffold and at
every level of ties.
In addition, we recommend that the
scaffold always be anchored as high
up as possible.
Where there are brackets, the
scaffold must be anchored at the level
of the brackets.
Scaffold with lattice beams must be
anchored at the xing points of the
beams.
The following estimated maximum
loads apply to scaffolding of this
type of 24 m in height in accordance
with EN 12811. Ties that can
withstand horizontal forces should
be dimensioned for a load of 4.7 kN
parallel with the façade and 5.7 kN
perpendicular to the façade. Other
ties should be dimensioned for a
load of 3.9 kN perpendicular to the
façade.
Where a scaffold is covered in
sheeting, the number of ties must be
increased to take account of wind
load. Seperate calculations are
therefore required.
Bracing with vertical diagonal braces and tying-in
Bracing with SKRD guardrail frames and tying-in
Ring bolt
Standard
Facade
Ring bolt
Tie rod tube
approx. 90°
Coupler Coupler
Examples of ties that can carry horizontal forces.
(PLEASE NOTE: use type examined couplers)

16
Permissible loads on standards
When calculating permissible construction heights for the scaffold, the following
permissible loads on standards can be applied for different combinations of lift height
and vertical distances between ties.
1 kN = 100 kp
Lift height [m] Vertical distance
between ties [m]
Permissible standard load [kN]
Base jack max. Base jack min. Vertically braced
using SKRD
2.0 2.0
4.0
16.4
9.5
20.9
9.8
16.4
9.5
The support surface must be capable of withstanding a design load per standard of twice
the relevant permitted load on a standard.
When scaffolding is suspended, standard joints must be locked using 16 mm pins. The
permissible tensile load on a standard in a suspended scaffold is 20.0 kN.
When designing using the partial coefcient method, the design bearing capacity is
obtained by multiplying the permitted load by 1.5.
LOADING CONDITIONS

17
LOADING CONDITIONS
1 kN = 100 kp
Permissible construction heights for HAKI Universal Aluminium
Vertical distance
between ties
[m]
Decking Width
[mm]
Number of
decked
levels
Load class
12345
2.0
AL plank
load class 5
16.5 kg/m2
700 1
5
All
190
172
68
182
160
64
176
152
60
164
134
54
148
110
46
770 1
5
All
188
168
66
178
154
60
172
146
56
160
128
50
142
100
40
1050 1
5
All
182
158
54
168
138
48
160
126
44
144
100
36
---
---
---
1250 1
5
All
176
150
48
162
126
42
152
112
38
---
---
---
---
---
---
4.0
AL plank
load class 5
16.5 kg/m2
700 1
5
All
102
84
36
94
72
32
88
64
28
76
46
22
60
22
12
770 1
5
All
100
82
34
90
68
28
84
58
26
72
40
20
54
14
10
1050 1
5
All
94
70
26
82
52
22
74
40
18
58
14
10
---
---
---
1250 1
5
All
90
64
24
76
42
16
66
26
12
---
---
---
---
---
---
Permissible construction heights
The table applies to HAKI Universal Aluminium with bay lengths 3050 mm, lift heights
2.0 m, and vertical distances between ties of 2.0 or 4.0 m.
Work must not be carried out on more than one lift at a time.
Decking has been calculated at 16.5 kg/m².
HAKI recommends a bay width of at least 1.0 m for load classes 4, 5 and 6.
Other bay lengths, bay widths and decking alternatives will have an effect on the
permissible construction height. Please contact HAKI’s technical department in these
cases.

18
LOADING CONDITIONS
The tables apply to HAKI Universal Aluminium LB AL or ERB AL beams for varying bay
sizes, decking of weight 16.5 kg/m² and unilateral or bilateral loading.
In the specied load classes, no consideration has been paid to the bearing capacity of
the decking.
Permissible load classes for different beam combinations
Permissible load classes for LB AL beam for unilateral loading
Permissible load classes for ERB AL beam for unilateral loading
Wide scaffold Facade scaffold
Loaded beam Loaded beam
Ledger beam
LB AL
a [m]
700 770 1050 1250 1655 1964 2500 3050
LB 350 6 6 6 6 6 6 6 6
LB 770 6 6 6 6 6 6 6 6
LB 1050 6 6 6 6 6 6 6 6
LB 1250 6 6 6 6 6 6 6 6
LB 1655 6 6 6 6 6 6 5 5
LB 1964 6 6 6 6 6 6 5 5
LB 2500 6 6 6 6 5 5 4 3
LB 3050 6 6 6 5 5 4 4 3
Single tube
beam ERB AL
a [m]
564 700 770 1050 1250 1655 1964 2500 3050
ERB 564 6 6 6 6 6 6 6 6 6
ERB 700 6 6 6 6 6 6 6 6 6
ERB 770 6 6 6 6 6 6 6 6 6
ERB 1050 6 6 6 6 6 6 6 6 6
ERB 1250 6 6 6 6 6 6 6 6 5
ERB 1655 6 6 6 6 6 5 5 4 4
ERB 1964 6 6 6 5 5 4 4 3 3
ERB 2500 6 5 5 4 4 3 3 3 2
ERB 3050 6 4 4 3 3 3 2 1 1
a
a

19
LOADING CONDITIONS
Permissible load classes for LB AL beam for bilateral loading
Permissible load classes for ERB AL beam for bilateral loading
Wide scaffold Facade scaffold
Loaded beam Loaded beam
Ledger beam
LB AL
a [m]
700 770 1050 1250 1655 1964 2500 3050
LB35066666666
LB77066666655
LB 1050 6 6 6 6 5 5 4 4
LB 1250 6 6 6 6 5 5 4 3
LB 1655 6 6 5 5 4 4 3 3
LB 1964 6 6 5 5 4 4 3 3
LB 2500 5 5 4 4 3 3 3 3
LB 3050 5 5 4 3 3 3 2 ---
Single tube
beam ERB AL
a [m]
564 700 770 1050 1250 1655 1964 2500 3050
ERB 564 6 6 6 6 6 6 6 6 6
ERB 700 6 6 6 6 6 6 6 5 5
ERB 770 6 6 6 6 6 6 6 5 5
ERB 1050 6 6 6 6 6 5 5 4 4
ERB 1250 6 6 6 6 6 5 5 4 3
ERB 1655 6 5 5 5 4 3 3 3 2
ERB 1964 6 4 4 3 3 3 2 1 1
ERB 2500 5 4 3 3 3 2 1 1 1
ERB 3050 4 3 3 2 1 1 1 --- ---
a
a
aa

20
Permissible loads on beams
Permissible loads on beams installed in HAKI standards.
1 kN = 100 kp
Brackets
Each level at which a bracket is tted must be
provided with a wall tie.
Load classes for brackets apply provided that the
brackets are tted in a bay of length max.
3050 mm and in connection with decking of
weight 16.5 kg/m2.
In the specied weight classes, no consideration
has been paid to the bearing capacity of the
decking. The permissible load class can never be
greater than the load class for the decking.
Bracket Load class
SK 230 AL
SK 460 AL
SK 564 AL
SK 770 AL
SK 1250 AL
6
4
3
3
3
Beam type Permissible
load q
[kN/m]
Permissible
distributed
load Q [kN]
Permissible
centrepoint
loads P [kN]
Permissible
point loads
P3 [kN]
Permissible
point loads
P4[kN
LB 350 AL
LB 770 AL
LB 1050 AL
LB 1250 AL
LB 1655 AL
LB 1964 AL
LB 2500 AL
LB 3050 AL
141.8
59.1
42.5
30.1
16.8
11.8
7.2
4.8
42.5
42.5
42.5
36.1
27.0
22.6
17.6
14.4
42.5
30.1
21.7
18.1
13.5
11.3
8.8
7.2
21.3
21.3
16.3
13.6
10.1
8.5
6.6
5.4
21.3
21.3
21.3
18.1
13.5
11.3
8.8
7.2
ERB 700 AL
ERB 770 AL
ERB 1050 AL
ERB 1250 AL
ERB 1655 AL
ERB 1964 AL
ERB 2500 AL
ERB 3050 AL
26.2
23.6
17.0
11.8
5.6
3.8
2.4
1.6
17.0
17.0
17.0
14.2
9.0
7.3
6.0
4.7
8.5
8.5
8.5
7.1
4.5
3.7
3.0
2.4
6.4
6.4
6.4
5.3
3.4
2.8
2.3
1.8
8.5
8.5
8.5
7.1
4.5
3.7
3.0
2.4
LOADING CONDITIONS