Haki UNIVERSAL ALUMINIUM S4, User Manual

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14
LOADING CONDITIONS
Load classes
Refers to EN 12811-1
Load
class
Uniformly
distributed
load [kN/m
2
]
Concentrated
load on area
0.5mx0.5m [kN]
Load of one
person on area
0.2mx0.2m [kN]
Partial area load
Load [kN/m
2
] Partial area [m
2
]
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