Assembly Instructions

Transcription

ASSEMBLY INSTRUCTION ALEX
Assembly Instructions are designed to provide a description of the assembly
of Delta ALEX.
Delta ALEX is type approved for load class up to class 5
Delta ALEX is designed to create a secure temporary access to installations
and projects where appropriate.
We hope everyone will use this manual to ensure proper installation of
scaffolding. The purpose is to prevent accidents and make the workplace
safe.
2014
Contents
2
Preface
3
Technical terms/Terminology
4
Material description/Properties
5
General load classification
6
Classification according NS-EN 12811
6
List of components
7
Recommended scaffold widths
14
Permissible load on standards
14
Load tables
16
Permissible building height
22
General conditions
23
Inspection and maintenance
24
Bracing
26
Fastening
27
Anti-falling
28
Scaffold system
29
Access
35
Toe board
38
Brackets
40
Beam riders (BRM/BRL)
43
Plank riders
45
DS/EB Diagonal Telescope
46
Mobile scaffolds
47
Stair tower
50
Scaffold pulley
51
Suspended Scaffold
52
Assembly Instructions ALEX
Preface
The following rigging instructions are meant as a guide for ALL
scaffolders and users of Delta ALEX.
When using a new scaffold system, it is important to learn how the
scaffold should be erected and which loads the scaffold is designed for.
The rigging instructions explain all the important aspects in this context.
Delta ALEX is approved until Class 5 loads (450 kg/m2) according to NS
EN 12810 and NS EN 12811. Special calculations must be performed for
greater loads. These calculations can be performed by the supplier.
Many components are available for a variety of applications. We have
presented options within the framework that prevails for Class 5 loads.
We suggest that you familiarize yourself with the tables presented.
These are meant as a useful tool for proper erection of the scaffold. We
ask you to pay special attention to the section on maintenance.
We sincerely hope that everyone will follow these instructions to
ensure proper erection of the scaffold thus helping prevent accidents
and increase job safety.
GOOD LUCK!
3
Technical terms /
Terminology
As you proceed through this manual, you may encounter some unfamiliar
words and expressions. These are based on the terminology suggested in
EN 12811-1. The picture below shows an erected scaffold with a width of
1.2 m and a bay length of 3.0 m. We have inserted some of the terms and
expressions which will be repeated throughout the manual.
Guardrail
Handrail
Knee rail
Toe board
Standard
Diagonal
Diagonal
Ledger beam
Base jack
Transom beam
Bay length
Bay width
4
Material Description /
Properties
The scaffold is constructed of aluminum, with the exception of certain
components that are more adequate in steel. The aluminum alloy is of the AlMg-Si-Mn type, which is sea-water resistant.
The alloy can be delivered with certificates from DET NORSKE VERITAS,
LLOYDS Register of Shipping or GERMANISHER Lloyd. The alloy elements
provide the following material properties:
Mg (magnesium)

Increases strength

Increases hardness

Good corrosion resistance

Improved weld ability
AL + Si (silicon)

Yields temper able alloys in combination with magnesium

Mn (manganese)

Excellent yielding properties

Increases breaking strength


Allows for compliance with very small tolerances
As will be apparent from the above, this is an excellent alloy, especially for
offshore applications. We have evaluated various types of aluminum alloys,
and have selected the alloy recommended by aluminum experts.
5
General Load Classification
The Delta Spirstillas scaffold system is certified for loads up to Class 5 by the Directorate of
Labour Inspection. Loads in excess of Class 5 will require special calculations.
Equally
distributed load
Concentrated
load on area
500mm x 500mm
Load of one
person on area
200mm x 200mm
Load on part area
Klasse
Class
kN/m2
kg/m2
kN
kg
kN
kg
1
0,75
75
1,50
150
1,0
100
NOT PERMITTED
2
1,50
150
1,50
150
1,0
100
NOT PERMITTED
3
2,00
200
1,50
150
1,0
100
NOT PERMITTED
4
3,00
300
3,00
300
1,0
100
5,00
500
0,4A
5
4,50
450
3,00
300
1,0
100
7,50
750
0,4A
6
6,00
600
3,00
300
1,0
100
10,00
1000
0,5A
kN/m2
kg/m2
Part
area m2
A = Area between two pairs of standards.
Classification according to NS-EN 12811
Class 1 (0.75 kN/m²)
The scaffold has Class 2 components in floors, but allows for reduction of the total load by load
transfer to related components (load on total area becomes Class 1). This class is only designed
for inspections and tasks requiring light tools and no storage on the scaffold.
Classes 2 and 3 (1.5 and 2.0 kN/m²)
Scaffolds certified according to these classes are designated to provide access in
connection with inspection work and work without storage of materials other than that which is
consumed (paint/cleaning materials, etc.).
Classes 4 and 5 (3.0 and 4.5 kN/m²)
Scaffolds certified according to these classes are designated for a heavier type of work where
some storage of material must be expected (masonry/concrete elements, piping, etc.)
Class 6 (6.0 kN/m²)
Scaffolds in this class are designated for special tasks where heavy loads on the scaffold must
be expected.
When using Delta ALEX, special calculations must be performed prior to erection. These can be
performed by the supplier.
6
List of components
Extension Standards, FS/FSH
Length
meters
Weight
[kg]
FS/FSH 3,0
3,0
8,9 / 9,2
FS/FSH 2,0
2,0
6,1 / 6,4
FS/FSH 1,5
1,5
4,7 / 5,0
FS/FSH 1,0
3,0
3,3 / 3,6
FS/FSH 0,5
3,0
1,9 / 2,2
Item
Ledger Beams, LB
Item
7
Length metres
Weight
[kg]
LB 3,00
3,00
9,4
LB 2,45
2,45
8,5
LB 1,90
1,90
6,2
LB 1,60 (TB)
1,60
5,3
LB 1,20 (TB)
1,20
4,1
LB 1,00 (TB)
1,00
3,6
LB 0,72 (TB)
0,72
2,7
LB 0,50 (TB)
0,50
2,0
List of components
Single Tubular Beam, EB
Length
metres
Weight
[kg]
EB 3,00
3,00
4,4
EB 2,45
2,45
3,6
EB 1,90
1,90
3,0
EB 1,60
1,60
2,6
EB 1,20
1,20
2,1
EB 1,00
1,00
1,9
EB 0,70
0,72
1,5
EB 0,50
0,50
1,4
Item
Length
metres
Weight
[kg]
DSLB 3,00
3,00 bay
6,3
DSLB 2,50
2,50 bay
5,6
DSLB 1,90
1,90 bay
5,0
DSLB 1,60
1,60 bay
4,5
DSLB 1,20
1,20 bay
4,2
3,60
9,5
Item
Diagonal Bracing, DSLB
DST
8
DST
List of components
Planking, PL (Cl. 5)
Width 230 mm
Length
metres
Weight
[kg]
PL 3,0
3,0
10,1
PL 2,5
2,5
8,4
PL 1,9
1,9
6,8
PL 1,6
1,6
5,9
PL 1,2
1,2
4,7
PL 1,0
1,0
4,0
PL 0,7
0,7
3,2
Length
metres
Weight
[kg]
PL 3,0
3,0
9,6
PL 2,5
2,5
8,1
PL 1,9
1,9
6,9
PL 1,6
1,6
5,9
PL 1,2
1,2
4,3
PL 1,0
1,0
3,5
PL 0,7
0,7
2,4
Item
Planking, PL (Cl. 5)
Width 170 mm
Item
9
List of components
Labank
Length x
Width
[m x m]
Vekt
[kg]
Labank Alu lockable
1,25x0,6
9,1
Labank Alu
9,1
Labank Alu endplate
1,25x0,6
1,25x0,6
Labank Alu endplate
1,25x0,5
7,9
Labank Alu endplate
1,25x0,4
7,0
Octaflex
1,25x0,5
8,0
Item
Labank Alu
Labank Alu
with endplate
Labank Alu
lockable
9,1
Octaflex
Hatch Panel, LP 1.2
Item
LP 1,20
Length
metres
Weight
[kg]
1,20
17,5
Length
metres
Weight
[kg]
2,1
3,6
LP 1,2
Ladder, LE
Item
LE 2,1
LE 2,1
Hand railing
Stairs
Heigth x Width
[m x m]
Weight
[kg]
STV 2,0 x 1,6
2,00 x 1,60
14,2
STV 2,0 x 1,2
STV 2,2 x 1,2
2,00 x 1,20
2,20 x 1,20
13,0
15,0
UTV 3,0
2,00 x 3,05
25,8
Hand railing
2,00 x 3,05
11,8
Item
10
STV
UTV
List of components
Aluminum Toe board, FL
Item
Length
metres
Weight kg
FL 3,00
3,00
6,5
FL 2,45
2,50
5,4
FL 1,90
1,90
4,1
FL 1,60
1,60
3,5
FL 1,20
1,20
2,7
FL 1,00
1,00
2,2
FL 0,70
0,70
1,7
FLF
-
0,7
FLS
-
0,5
FLF,
aluminum
toe board
coupler
FLS,
for toe
board
connection
Plank rider, PLR
Item
Weight kg
IP 0,70
1,8
IP 0,47
1,5
IP 0,23
1,2
VP 0,70
1,8
VP 0,47
1,5
VP 0,23
1,2
Beam Riders
Item
11
Weight kg
BVR without top plate
1,3
BVR with top plate
1,4
BVRB
BRM
1,1
0,7
Flexible fastener
1,6
BRM
Flexible
fastener BRM
With top
plate
BVRB
BVR
Without
top plate
List of components
Base jack (Steel), BS
Wheel: Max load 750 kg
Benevning
Diam. x Høyde
[mm x mm]
Vekt
[kg]
Base jack
32 x 600
5,5
Wheel
32 x 600
8,1
Tie Rod With Clamp (Steel), VF/VFK
Item
Length
metres
Weight kg
VF 600
0,60
0,7
VF 800
0,80
0,9
VF 1000
1,00
1,0
Clamp
-
0,6
Eye Bolt
-
1,0
Cover Board, DL
Item
12
Length
metres
Weight kg
DL 1000
1,00
1,0
DL 700
0,80
0,8
DL 235
0,235
0,3
Clamp
-
0,1
Cover, DL
Clamp,DLK
List of components
Cover Plate, DP
Length x Width
[m x m]
Weight
[kg]
DP 1,14 x 0,63
1,14 x 0,63
8,1
DP 1,10 x 0,50
DP 0,70 x 0,50
1,10 x 0,50
0,70 x 0,50
6,2
3,9
DP 0,50 x 0,50
0,50 x 0,50
2,8
Item
Brackets, SK
Item
13
Weight
[kg]
SK 1,20
SK 0,70
6,6
3,5
SK 0,50
2,9
SK 0,30
0,8
Recommended scaffold widths
The width of scaffolds is determined by the type of work to be performed on the
scaffold. The table below shows recommended widths for various types of work.
Type of work to be performed on the scaffold
Recommended width
Need to use a wheelbarrow and storage of material
1,6 / 1,9 / 2,45 / 3,0
Need for normal work space and storage of material
1,2 / 1,6
Need for normal work space and no storage of material
0,72 / 1,0
Permissible load on
standards
The maximum permissible load on standards is 20 kN (2000 kg) with a intermediate floor
elevation of 2.0 m or less. In the case of greater floor elevation, the permissible load on
standards must be reduced in accordance with NS-EN 12811 and the user is responsible
for continuously clearing any snow load when applicable. See illustrations next page.
Floor heigth1
Permissable load on standards
kN (kg)
2,0
20,0 (2000)
2,5
12,8 (1280)
3,0
8,9 (890)
¹Free height between
junctions, where LB and TB
meet the standard.
14
Permissible load on standards
Permissible load on standards with
floor height:
• 2,0 meter = 20 kN
• 2,5 meter = 12,8 kN
• 3,0 meter = 8,9 kN
15
 Bay length 
Permitted distributed load (kg/m2) on DELTA
aluminum transom beam with load from one
bay.
16
LB 0.5
LB 0.7
LB 1.0
LB 1.2
LB 1.6
LB 1.9
LB 2.5
LB 3.0
 Bay width 
Load on TB TB 0.5 TB 0.7 TB 1.0 TB 1.2 TB 1.6 TB 1.9 TB 2.5 TB 3.0
Art. No
AS2098 AS2097 AS2096 AS2095 AS2094 AS2093 AS2092 AS2091
AS2098
450
450
450
450
450
450
450
450
AS2097
450
450
450
450
450
450
450
450
AS2096
450
450
450
450
450
450
450
450
AS2095
450
450
450
450
450
450
450
450
AS2094
450
450
450
450
450
450
450
450
AS2093
450
450
450
450
450
450
450
450
AS2092
450
450
450
450
450
450
450
300
AS2091
450
450
450
450
450
450
300
300
All requirements are controlled
All loads inn kg/m2
 Bay length 
aluminum transom beam with load from two bays.
LB 0.5
LB 0.7
LB 1.0
LB 1.2
LB 1.6
LB 1.9
LB 2.5
LB 3.0
 Bay width 
Load on TB TB 0.5 TB 0.7 TB 1.0 TB 1.2 TB 1.6 TB 1.9 TB 2.5 TB 3.0
Art. No
AS2098 AS2097 AS2096 AS2095 AS2094 AS2093 AS2092 AS2091
AS2098
450
450
450
450
450
450
450
450
AS2097
450
450
450
450
450
450
450
450
AS2096
450
450
450
450
450
450
450
450
AS2095
450
450
450
450
450
450
450
300
AS2094
450
450
450
450
450
450
300
300
AS2093
450
450
450
450
450
300
300
200
AS2092
450
450
450
450
450
200
200
150
AS2091
450
450
450
450
300
200
200
150
All loads inn kg/m2
17
Load cases
Permitted load on ledger beam
Art. No.
Item
q
(kN/m)
Q
(kN)
P
(kN)
P3
(kN)
P4
(kN)
AS 2091
LB 3,00
4,8
14,4
6,9
5,1
6,9
AS 2092
LB 2,45
7,2
17,6
8,4
6,3
8,4
AS 2093
LB 1,90
11,8
22,5
10,8
8,1
10,8
AS 2094
LB 1,60
16,7
26,7
12,8
9,6
12,8
AS 2095
LB 1,20
30,0
36,0
17,2
12,9
17,2
AS 2096
LB 1,00
42,1
42,1
17,5
15,4
17,5
AS 2097
LB 0,70
-
42,1
17,5
-
-
AS 2098
LB 0,50
-
42,1
17,5
-
-
NB! The ledger beams must be secured sideways
with planks to take the different load cases.
18
Load cases
Permitted load on aluminum plank
19
Art. No.
Item
q
(kN/m)
Q
(kN)
P
(kN)
P3
(kN)
P4
(kN)
R18305
PL 3,00
1,0
3,2
1,6
1,2
1,6
R18250
PL 2,45
1,5
3,9
1,9
1,4
1,9
R18196
PL 1,90
2,5
4,9
2,5
1,8
2,5
R18165
PL 1,60
3,5
5,8
2,9
2,2
2,9
R18125
PL 1,20
6,2
7,7
3,9
2,9
3,9
 Bay length 
aluminum single tubular transom beam with
load from one bay.
LB 0.5
LB 0.7
LB 1.0
LB 1.2
LB 1.6
LB 1.9
LB 2.5
LB 3.0
 Bay width 
Load on TB TB 0.7 TB 1.0 TB 1.2
Art. No
R06072 R06100 R06120
AS2098
450
450
450
AS2097
450
450
450
AS2096
450
450
450
AS2095
450
450
450
AS2094
450
450
450
AS2093
450
450
450
AS2092
450
450
450
AS2091
450
450
450
All loads inn kg/m2
20
 Bay length 
Permitted distributed load (kg/m2) on DELTA aluminum
single tubular transom beam with load from two bays.
LB 0.5
LB 0.7
LB 1.0
LB 1.2
LB 1.6
LB 1.9
LB 2.5
LB 3.0
 Bay width 
Load on TB TB 0.7 TB 1.0 TB 1.2
Art. No
R06072 R06100 R06120
AS2098
450
450
450
AS2097
450
450
450
AS2096
450
450
450
AS2095
450
450
450
AS2094
450
450
450
AS2093
450
450
450
AS2092
450
450
450
AS2091
450
450
450
All loads inn kg/m2
21
Permissible building height
Permissible building height in meters
Number of
planked floors
1
2
3
4
5
6
7
8
9
10
11
12
Completely
planked
LB 3,0 x LB 1,2
alu. plank
2,0m
floor distance
110,5
104,5
100,5
96,5
93,5
86,5
82,5
78,5
74,5
68,5
64,5
60,5
LB 3,0 x LB 1,6
1,6m alu. plank
1,5m
floor distance
76,5
72
66
61,5
55,5
51
46,5
40,5
36
30
25,5
21
LB 3,0 x LB 1,6
1,6m alu. plank
2,0m
floor distance
94,5
88,5
82,5
76,5
68,5
62,5
56,5
50,5
44,5
38,5
32,5
24,5
34,5
18
24,5
The table shows the permissible building height for Class 5 Delta ALEX tubular
scaffolds erected with various bay lengths and floor distances. This table applies to
scaffolds with payload on 1 floor and no load transfer to the other floors.
For 1,6m bay widths the planks must be 1,6m for class 5 (Ref. table on page 17).
22
General conditions
The floors can be erected at vertical intervals of 0.5 meters, but 2.0 m is the norm. (See table for
permissible loads on standards). The greatest permissible bay length is 3.0 m for Class 5 tubular
scaffolds. (Applies to both widths and lengths.) Platforms higher than 2.0 m above ground shall be
equipped with toe boards, knee rails and hand rails. For transom beams (TB) with lengths of 1,6m or
longer are planking principle as shown under used on floors that can`t bear load from two bays
according to table on side 17 (applies for Class 4 or higher).
The picture shows the planking principle for 1,6m and longer transom beams for load Class 4
or higher.
See also load tables on page 16-21.
23
Inspection and maintenance
The scaffold shall be inspected visually prior to use in order to check for cracks
in welded joints and galvanic corrosion. Damaged material must be isolated
and possibly rejected. It must never be done any modifications of the
components (welding/bending/straightening etc) without obtaining new
certification of the components. This is particularly important for load-bearing
components. The vertical standards must never be cut in half. Loose parts
(locks, bolts etc.) must be greased regularly. Moreover defect components can
be shipped to the supplier for repair/maintenance. Erected scaffold shall
regularly be controlled by qualified personnel to assure that any defects are
detected at an early stage. Inspections must also include checking foundations
to prevent scaffolds from sinking into the ground and making sure that base
boards are securely fastened. Is must be expected that scaffolds fabricated in
steel and aluminium will be subject to galvanic corrosion under special
atmospheric conditions. In time, this type of attack could entail structural
deterioration of the component unless corrective measures are implemented.
However, meticulous galvanisation of steel components, along with regular
inspection and maintenance can help detect such defects. Galvanic corrosion
can be spotted by the naked eye as ingrained white powder at the surface of
the aluminium. Most important is couplers being of recent date, such that the
layer of zinc is entire and as thick as possible. Aluminium in contact with bare
steel where moisture has access and seldom dries out will lead to corrosion.
To be on the safe side one should have regular control for scaffolds that stand
assembled for longer time. For scaffolds that are assembled for 2-3 months or
longer, one can loosen a few couplers to check the surface of the aluminium
pipe. If it turns out that corrosion has already started, (one can then see the
white coat, and perhaps some white oxide powder) one can try moving the
coupler a little to the side and tighten it again. Remember safety actions if one
need to move couplers. If the corrosion is significant, one need to make sure
the zinc coating is complete and reasonable thick and perhaps to assemble a
newer coupler. Flushing of disassembled components by fresh water should
also be done after long time off-shore use (3 months or more).
Couplers shall be cleaned and greased when needed. Couplers where the zinc
coating is worn down in the contact surface towards the piping, is smeared
with cold zinc, or one can deliver the couplers in for hot galvanization or flame
spraying with zinc. It is then assumed that all joint bolts are in good condition.
Couplers that are worn in the joints shall be rejected. Bolt and nut are easy to
replace. Bare steel surface must not come in contact with aluminium.
24
Inspection and
maintenance
Visual inspection of the scaffold material shall be performed according to the table below.
Inspection and maintenance program for scaffold material
Activity
Frequency
Assembling
Assembled
Offshore Onshore
Visual control of components
Before
After
Stroke damages/cracks/corrosion
damages
X
Deformation
External
influence
(bad weather
etc.)
7. day
14. day
X
X
X
X
X
X
X
X
X
Grease /oil / chemicals
X
X
X
X
X
Suspension components
X
X
X
X
X
Safe access
X
X
X
Bracings/ diagonals
X
X
X
Latches/ locks for safety rails
X
X
X
Latches/ locks for transom- and ledger
beams
X
X
X
Floors, lock lists, lashings / openings
X
X
X
Tigthening of couplers
X
X
X
Steel and aluminium is separated
X
Scaffold materials
Tigthening of latches
X
X
Toe boards
X
X
Foundation / suspensions
25
X
X
X
X
X
X
X
Bracing
The diagonal bracings, DS, are equipped with couplers that are assembled to the standards.
Alternatively scaffolding tube SR 49 with coupler KS 49x49 can be assembled in a similar way.
The diagonal bracings are assembled in 2.0 m vertically intervals in opposite direction for each
height.
The scaffold shall be braced by diagonal bracings till the top for every 4th bay, and always in the
end bay length. Additionally must the scaffold be braced also between the outer and inner
standards in end bays.
A horizontal bracing shall be used for every 24 m vertically in every 8th bay for ledger beam LB 3.0.
For these bracing there shall be wall fasteners taking horizontal forces.
26
Fastening
Single
wall clamp
Double
wall clamp
The scaffold must be fastened to the wall (See single wall clamp) with wall clamps on each inner standard
every 4 vertical meters. To absorb horizontal forces, wall fastening devices every 6 vertical meters for at least
every eight inner standards must consist of two wall clamps fitted at right angles to each other (See double
wall clamp) or similar devices. In addition, the end inner standards must be fastened at the top level.
When using scaffold canvas, vertical wall fastening must be doubled. Presupposes out pulling tests and that
fastenings withstands calculated wind loads.
Brackets
When brackets are used either inside or outside must, in addition to the text above, the inner standards be
fastened to the wall at both the bracket level and the underlying floor level.
Further vertical erection is not permitted on a bracket without special calculations.
27
Anti-falling
Safe fastening points for the anti-falling device are:
1. The hook is fasted around the standard tube until 1 meter above the joint.
A joint is already assembled ledgers and transoms forming a rigid frame.
It is presupposed that wall fastening is assembled according to our assembling
instructions (page 26).
Do not put the line (the rope itself) around the standard tube on top of the
pocket, as the edges of the pockets may be sharp and course a break in the
line.
Do not fasten the hook in one of the hook of the pocket.
2. The hook can be fastened in the lower flange of the ledger beam at the centre
of the span when the ledgers and transoms are assembled forming a rigid
frame. The same presumptions as above are assumed.
28
Scaffold system
It is an advantage to lay out enough material for the base prior to erection. In case of uneven or
soft ground, foundation boards should be used under the base jack.
Start at the highest ground level by placing
the standard on top of the adjustable base
jack. The distance from the wall must
never exceed 30 cm without a bracket or
railing installed on the inside for floors
above 2m over ground.
29
Place the outer standard and connect
with transom beam.
Scaffold system
The beams must ALWAYS be
locked in place by aid of the
securing handle so that there
is no possibility of the beam
jumping out of the pocket on
the standard.
Raise standards 3 and 4 and connect
beams so you obtain a rectangle.
Adjust the bay length, both the short and the long end, using a
carpenter's level. This must be performed carefully in order to
simplify further erection.
30
Scaffold system
Continue along the wall according to need. It is important to remember the securing devices
on the beams, and that the scaffold must be level.
You can then begin
assembling the next floor.
The beams are normally
fitted 2 m above the previous
floor.
Se page 27 for details for
anti-falling safe fastening
points.
31
Scaffold system
Diagonal bracing
are installed at
the first bay and
subsequently at
every fourth bay.
The end bays
must ALWAYS
have bracing in
both directions.
Start assembly
of the next
level by
mounting
chosen access
(See relevant
chapters)
following with
floor planking.
The floor lays directly on ledger beams or transom beams depending on type and load
requirements. The floor are fastened with use of toe board (See own chapter) and/or wire
lashing. Some components are equipped with fastening arrangements that can be used.
32
Scaffold system
The standards are installed directly on top of
each other. Standards with top and bottom
plates are locked in place by twisting. All
standards are secured by use of bolt with
lock pin.
Install guardrails containing handrail and knee rail on all levels above 2 meter. Guardrail shall be
installed with the handrail 1 m above the floor, and the knee rail half way between the floor and the
handrail. This applies even if the guardrail are installed by use of single components as LB`s or EB`s.
. Dette gjelder uansett om det benyttes dobbelrekkverk eller enkeltkomponenter som LB/EB
33
Scaffold system
Wall tie are installed at
every 4th vertical meter
for uncovered scaffolds
and at every 2nd vertical
meter for covered
scaffolds on each inner
standard. The clamps are
placed as close to the
connection point as
possible (where the TB/LB
meet), often just below
the platform floor. It is
important that wall tie
and bracing are
performed according to
instructions
(See page 26 &27)
See separate section for
installation of toe boards.
The scaffold is now ready
for use. Dismantling is
performed in the reverse
order.
34
Internal Stairway
Install the stair
at the top of the
ledger beams.
Install guardrail
and/or EB’s to
secure the stair.
Connect the
guardrail posts
with guardrails
as shown in
picture (or
LB/EB)
Install floor and
guardrail on the next
floor. If the floor
only to be used as
entrance install a
suitable floor next to
the stair. Then install
BVR with LB to brace
the guardrail posts.
On floors with
planks in the
longitudinal
direction use BRM
instead of BVR.
Install LB between
and then install
the planks on the
LB’s. Guardrails
and toe boars can
then be installed
between the
standards.
The stairs exist to
bay width 1.2m
and 1.6m.
35
Hatch Panel 1,2 x 0,6m
(LP 1,2)
If you need to utilize the entire floor
without openings, hatch panel can
be used as an option.
The ladder can be installed in several
directions.
When the hatch is closed you can
use the hatch panel as an ordinary
floor.
With hatch panel it is possible to
make towers down to 1.2x0.7m base
and still use the basal area as
working floor.
Hatch panel is approved for load
class 5.
36
External Stairway
Install a
0.7x3.0m field
with ledger
beams and
standards
outside of the
scaffold.
Install the stair
on the upper and
lower ledger
beam. Continue
with hand rail
and guardrail.
Continue with
stairs, guardrail
and hand rail to
wanted level.
On the last level
secure the
entrance/exit
with guard rail.
Install guardrail
post on BVR at
the ledger beam.
As an
alternative to
standard and
ledger beams,
the stairs can be
installed on
0.7m brackets.
37
Toe Board
The toe board is made from the principle of notching
where one locks the other in corners.
Install the toe board coupler of the toe board at top so
that both toe boards is locked.
At the same time the plank will be locked at the end.
The toe boards easily spliced with toe board coupler. It is easy to adjust the lengths with greater
overlap.
38
Bracket 1,2 m (SK 1,2)
Load class 3
Fasten the bracket below with coupler
and above with ledger beam.
Remember additional wall tie.
Install standards and guard rails.
Dismantling in reverse order.
39
Install ledger beam between the brackets and place the
planking on.
Remember to secure the ledger beams with lock.
Load class 5
Install the bracket in the pocket at the
standard. Remember to secure with lock.
Remember additional wall tie.
Install plank, standards and guard rails.
40
Load class 5
Install the bracket in the pocket at
the standard. Remember to secure
with lock. Remember additional wall
tie.
Install plank, standards and guard
rails.
41
Load class 5
Install the bracket in the
pocket at the standard.
Used only inside against
the wall. Remember to
secure with lock.
Remember additional
wall tie.
Install plank between the
brackets.
Dismantling in reverse
order.
42
Beam Riders (BRM/BRL)
Beam Riders are used if it’s
necessary to install additional ledger
beam in the middle of a bay length.
(BRM) Load class 3
Installation of ledger beam at the
same level.
(BRL) Load class 3
Used for distribution of weight
across several ledger beams.
(BVR) Load class 3
Installation of ledger beams at the
same level with standard connection.
43
Beam Rider (RVR)
Load class 3
Beam Rider are used as a
combination of BRL and BVR
where it’s required with
guardrail posts between a bay
length. Beam Rider are
installed around the ledger
beam and locked with a
transom beam.
Install guardrail posts and
guardrails. Install plank above
the transom beam.
44
Plank Rider
Load class 5
Very often are obstacles in order to
create a proper floor. As a solution
you can use plank riders.
Plank rider is available as IP and VP
where IP is used between two planks
and VP used between planks and
ledger beam. Both are available in 1,
2 and 3 plank width.
The picture shows 2 plank IP installed
between the existing floor. Secure
the plank rider with string to the
plank.
Final installed, it looks like this.
The length of the plank to install on
the plank rider adjusted to
assortment and requirement.
Other holes must patch. This can be
done, for example, with a cover plate
as shown. Secure the cover plate to
the plank with string
45
Telescope Diagonal DST
Diagonal Telescope is a
usable product
because of its
flexibility.
The picture shows
some example of use.
It replace DS 1.2m, DS
3.0m and EB 3.0m.
In addition, DST
excellent requiring
horizontal bracing.
46
Mobile Scaffold
Install standards and transom beam
lying . Remember to lock the beams.
Assemble as shown. The scaffold will stand by itself.
47
Lock the wheels before installation.
Install the 4th standard and the rest of the
ledger beams.
Mobile Scaffold
Install ledger beams for
the next floor. Check
that the scaffold is level.
Bracing mounted on
each side and at the
junction of the lower
floor/beam level.
Proceed as shown previously up to
wanted height.
Always install guardrail/handrail and
toe boards at all scaffold floors.
48
Install the
scaffold floor
on the 2nd
floor, then
the stair.
Mobile Scaffold
Mobile Scaffold – outdoors in moderate
wind
(less than 12.4 m/s)
H r = height [m] to the upper guardrail
B = width [m] (including any support leg)
L = length [m]
VS = self weight [kg] of scaffold
VBA = weight [kg] of ballast
VBA = necessary ballast [kg]
Hr less than 9,0m
L less than 4,0m
VBA 
5,76  L  Hr  Hr  21  Hr  15
 Vs
B
Mobile Scaffold - indoors
H = height [m] to platform floor
B = width [m] (including any support leg)
VS = self weight [kg] of scaffold
VBA = weight [kg] of ballast
VBA = necessary ballast [kg]
H less than 12,0m
L less than 4,0m
VBA 
90  H  15
 Vs
B
Finally, check the correct installation and
bracing. Dismantling in reverse order.
49
Stair Tower 1,6 m x 1,2 m
Start by
installing the
first 2 floors.
Remember the
locks.
Attach the stairs
first.
The stair should
rest on the
transom beam
upper edge.
Place the
plank, the
continue with
any next floor
and stair.
Guard rails
should be
installed on
three sides of
the tower,
depending on
which side it is
required with
entrance/exit.
Stair tower
does not need
toe board.
50
Anchor the
tower to the
wall.
Dismantling
in reverse
order.
Scaffold Pulley
Install the pulley direct to the standard.
Use wall tie to prevent the scaffold
being pulled from the wall under load
of the pulley.
Allowable load is 0,75 kN (75 kg).
51
Assembling of suspended
scaffold
Grawlock- and SK-couplers
(NB! If other suspensions are used, see our Offshore Suspension manual)
The couplers are used to suspended scaffolds in beams via pipes or girders as shown
in the examples below.
Both couplers are only allowed used in pairs.
Art. No
Item
Weight (kg)
Maximum loading
(in pairs)
ST1025
SK 49
1,3
10 kN
ST1029
Grawlock
1.5
12 kN
SK-Couplers:
Fasten the SK-Couplers loosely around the tube so that they stay in place. Insert the
tube into position on the beam and push the couplers into the beam. Tighten the
couplers to the tube before fastening the couplers to the beam. Typical pulling force
for the coupling is 50 Nm. The tube is now fastened to the beam and the same
operation is performed on the next beam.
52
Assembling of suspended
scaffold
Grawlock- and SK-couplers
Grawlock-Couplers:
Install the Grawlock couplers into position on the beam first. Then place the tube
into the coupler and lock it. Typical pulling force for the couplers is 50 Nm. The same
operation is performed on the next beam.
Example of installation of suspended scaffolding:
Suspended in tubes:
53
Suspended in beams:
Assembling of
Suspended Scaffold
NB! All suspension scaffold shall be strengthen calculated in advance.
Before installation begins, the area under cordoned off.
Remember use of approved fall protection.
Start the installation of using
approved beam couplers.
Install the first standard.
Remember, all supporting
suspensions shall be secured, for
example safety couplers.
Install the next suspension and the
standard number two. Measure the
distance by install a ledger beam
between the standards. Remember
to level off. Fasten the suspension
when the correct distance is
obtained.
Make sure all couplers are securely
fastened.
54
Assembling of
Suspended Scaffold
Install the ledger beam as
shown. Make sure that the
standards are vertical and the
ledger beams is level.
Remember safety couplers.
Use struts to support the standards
to a wall or a solid installation to
prevent tilt of the scaffold.
Install standard number 3 and 4
and fasten to the next
beam/suspension.
55
Assembling of
Suspended Scaffold
Install guardrails and toe boards
for safe working platform.
56
Storebotn 73
N-5309 Kleppestø
Norway
Phone (+47) 5570 7054
Fax (+47) 5615 0201
[email protected]
www.deltasystem.no
57

Assembly Instructions

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