Surelock Engineering Manual

S
URELOCK COMPONENTS
1. SCOPE
1.1
This specification applies to all Company Sure Lock components.
2. SAFETY FACTORS
2.1
The loads stated below reflect the 4 to 1 Safety Factor and must
be multiplied by 1.33 to obtain the 3 to 1 Safety Factor.
3. DESIGN INFORMATION
3.1 Standard -- 3 lengths [1 m, 2 m, 3 m - page S-4 ] with a 12 in screw extension and 4
to 1 safety factor. The allowable loads at brace spacings in two directions is a
maximum of 4500 lb (with 2 m brace spacing - which is most typical), 6840 lb (with
1 m brace spacing), 5500 lb (with 1.5 m brace spacing ), 2000 lb (with 3 m brace
spacing). Standards have rosettes at 0.5 meters on center that accept connections at 8
places around the rosette.
3.2
Ledger -- 9 Lengths [6 ft, 8 ft, 0.65 m, 1.07 m, 1.15 m, 1.57 m, 1.63 m, 2.13 m, 3.05
m - page S-14] with a maximum allowable load of 2000 lb per end. Typically
installed at 2 meters in height in both directions.
(The 6 ft and 8 ft lengths are for bleachers only)
3.3
Double Ledger -- 4 lengths [1.57 m, 1.63 m, 2.13 m, 3.05 m - page S-18] designed for
load of 50 PSF in bays of 2.13 m (350 PLF)
3.4
Heavy Duty Ledger -- 3 lengths [1.57 m, 1.63 m, 2.13 m - page S-20]. Designed for
3000 lb load anywhere on them.
3.5
Cal-guard Rail -- 5 lengths [.65 m, 1.15 m, 1.63 m, 2.13 m, 3.05 m, - page S-24 ].
Handrail is designed to raise its top 5.20 in above the centerline of the rosette so that
it will meet the California OSHA requirement of being 42 in to 45 in above the top of
the planks. Meets California OSHA requirement of 200 lb force in any direction.
The original design to drawing 40322 was light duty and therefore not able to be used
as a safety tie-off point. It has been superceded by drawing 134xx, which is sufficient
enough to be used as a tie-off point.
3.6
Volume 2
Section 2.1
Diagonal Brace -- 7 lengths [1.15 m, 1.57 m, 1.63 m, 2.13 m, 3.05 m, 6 ft, 8 ft - page
S-16 ] that extend from ledger level to ledger level (2 m).
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SureLock Systems Scaffolding
Page 1
Sure Lock Components
3.7
Base collar -- [page S-26] 9 in high, where no screw adjustment is required at base.
(Gain 6.45 in in height)
3.8
Screw Jack -- [page S-28] allows 18 in adjustment at 4500 lb and lesser loads at
extension to 24 in. See Table page 29.
3.9
Swivel Base Jack -- [page S-30] allows 12 in adjustment at 4500 lb load. 180 degrees
rotation in one plane, connect to base to prevent slipping at greater than 15 degrees.
Less load at greater extension.
3.10 Side Bracket -- 3 sizes [page S-31] that accept 1, 2 or 3 planks. Designed for 400
PLF.
3.11 Stairway -- 2 m [page S-41] that connects to rosettes at 2 m in height and spans 2.13
m. Fits into 1/2 of 2.13 m wide bay. Designed for 100 PSF of horizontal projection.
There are ten treads that are 2 ft 6 in long by 9-1/2 in wide. Uses diagonal braces as
top and mid handrails.
3.12 Coupling pin -- [page S-11] is designed to couple standards together and does not add
any height to system.
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Volume 2
Section 2.1
Sure Lock Standard -- Structural Properties
Standard Lengths
Imperial Metric
3 ft 3 in
1m
6 ft 7 in
2m
9 ft 10 in 3 m
Part No.
213003
213002
213001
Also Available
1 ft 7¾ in 0.5 m
4 ft 11 in
1.5 m
13036
213095
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
Standards have rosettes at 0.5 meters on center that accept connections at 8 places around the
rosette.
Volume 2
Section 2.1
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SureLock Systems Scaffolding
Page 3
Sure Lock Standard -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513 Type 1
Tensile Stress (Ultimate)......................................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) ...........................................................Fy 50 ksi
345 N/mm2
Rosette [213905]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 38 ksi
Material Thickness ..................................................................... 0.375 in
400 N/mm2
260 N/mm2
9.53 mm
Finish.......................................................................................... Galvanized, ASTM A123
Allowable Vertical Load
(12 in screw extension)
bracing in two directions
2 m brace spacing
(most typical)
1 m brace spacing
lb
4,500
lb
6,840
kN
20.0
kN
30.4
1.5 m brace
spacing
lb
kN
5,500
24.5
3 m brace spacing
lb
2,000
kN
8.9
(1) The above loads do not allow for any secondary bending moments. See next page.
(2) Screw jack allows 18 in adjustment at 4,500 lb and lesser loads at extension to 24 in.
(3) All F.S.: 4:l
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Volume 2
Section 2.1
S
ECONDARY BENDING EFFECTS
You are cautioned to consider the effects of secondary bending on the upright standard.
A fully loaded ledger can produce up to 2,500 lb-in (4150 Nm) secondary bending under
maximum allowable loading, therefore caution should be exercised when combining heavily
loaded ledgers with heavily loaded standards. Other sources of secondary bending include side
bracket loading.
Use the axial load - secondary bending interaction diagrams (Figures 1 & 2) for determining
the effects of secondary bending to the Sure Lock standard. A sample calculation is provided
to illustrate their use.
Use Figure 1 when the maximum Factor of Safety is 4:1 and Figure 2 when the maximum F.S.
is 3:1
The overall factor of safety and allowable axial loading declines as per Figures 1 & 2 with the
introduction of secondary bending.
Volume 2
Section 2.1
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SureLock Systems Scaffolding
Page 5
Sample Calculation
Problem:
Determine the maximum allowable axial loading for the Sure Lock vertical standard and
determine the factor of safety when introducing secondary bending from a side bracket.
Note: Use specifics relevant to your own situation for actual use.
Sample Situation:
Side Bracket
0.65 m intended for exclusive use by workers with their personal tools.
Design Loading:
25 psf (CSA S269. 2-M1980 Sect. 5.21c)
6.5 psf timber deck plus bracket self weights
7 ft bay spacing.
Side Bracket Loading/ft = 7 ft x (25 + 6.5)
= 220 lb/ft width of bracket
= 18.3 lb/in width of bracket
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Page 6
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Volume 2
Section 2.1
RH = 20.4 in x 18.3 lb/in x 13.24 in
19.69 in
= 251 lb
Secondary Bending B.M. = 251 lb x 19.69 in x (59.06in)2 = 3.71 kip.in
1000 x (78.7 in)2
Enter Figure 1 or 2 with a secondary bending of 3.71 kip in.
e.g. for 2 m node spacing, actual F.S. = 2.5:1 overall when secondary bending is
considered.
Volume 2
Section 2.1
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SureLock Systems Scaffolding
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SureLock Systems Scaffold
Page 8
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Volume 2
Section 2.1
Volume 2
Section 2.1
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SureLock Systems Scaffolding
Page 9
Sure Lock Coupling Pin-- Structural Properties
Part No.
213901
Tube
Imperial
Area............................................................................................. 0.51 in2
Outside Diameter........................................................................ 1.59 in
Wall Thickness ........................................................................... 0.110 in
Nominal Weight ......................................................................... 1.74 lb/ft
Moment of Inertia....................................................................... 0.141 in4
Section Modulus......................................................................... 0.177 in3
Radius of Gyration ..................................................................... 0.524 in
Metric
330.0 mm2
40.4 mm
2.79 mm
2.59 kg/m
5.86E4 mm4
2.90E3 mm3
1.33E1 mm
Design Data
Material: Steel ............................................................................ ASTM 513 Type 1 or Type 2
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Outside Diameter........................................................................ 1.625 in
41.28 mm
Wall Thickness ........................................................................... 0.095 in
2.41 mm
Cold drawn to final 1.59 in OD and 0.110 in wall thickness
Finish..............................................................................................Galvanized
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Volume 2
Section 2.1
Sure Lock Rosette-- Structural Properties
Part No.
213905
Design Data
Imperial
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 38 ksi
Material Thickness ..................................................................... 0.375 in
Volume 2
Section 2.1
28MAR97
Metric
400 N/mm2
260 N/mm2
9.53 mm
SureLock Systems Scaffolding
Page 11
Sure Lock Locking Pin -- Structural Properties
Part No.
13014
Design Data
Imperial
Metric
Material:...................................................................................... Steel Wire, cold drawn 2/0 gauge
Outside Diameter........................................................................ 0.321 in
8.15 mm
Finish.......................................................................................... Galvanized
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Volume 2
Section 2.1
Sure Lock Ledger -- Structural Properties
Standard Lengths
Imperial
Metric
2 ft 2 in
0.65 m
3 ft 6 in
1.065 m
3 ft 10 in
1.15 m
5 ft 2 in
1.57 m
5 ft 4 in
1.63 m
7 ft 0 in
2.13 m
10 ft 0 in
3.05 m
Part No.
13007
213200
13006
13044
213098
13005
13018
Tip-to-tip Dimension
Imperial
Metric
2 ft 0¼ in
0.61 m
3 ft 4¼ in
1.025 m
3 ft 8¼ in
1.11 m
5 ft 0¼ in
1.53 m
5 ft 2¼ in
1.59 m
6 ft 10¼ in
2.09 m
9 ft 10¼ in
3.01 m
Custom lengths can be made on request.
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Volume 2
Section 2.1
28MAR97
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 13
Sure Lock Ledger -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
End Castings (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A27, Grade 70-36 Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
Finish.......................................................................................... Galvanized
Allowable Load
Maximum load transferred through end: 2,000 lb [909 kg] each end
Typically at 2 meters in height in both directions.
Maximum Uniformly
Distributed Load
lb/ft
kg/m
1546
2305
576
859
494
737
264
394
247
368
144
215
70
104
Bay Width
feet
meters
2 ft 2 in
0.65
3 ft 6 in
1.07
3 ft 10 in
1.15
5 ft 2 in
1.57
5 ft 4 in
1.63
7 ft 0 in
2.13
10 ft 0 in
3.05
(1) F.S.: 4:1
(2) For 3:1 Safety Factor, multiply by 4/3.
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Volume 2
Section 2.1
Sure Lock Diagonal Brace -- Structural Properties
Standard Lengths
Imperial
Metric
Part No.
3 ft 10 in
5 ft 2 in
5 ft 4 in
7 ft 0 in
10 ft 0 in
13017
13045
213099
13016
13015
1.15 m
1.57 m
1.63 m
2.13 m
3.05 m
Tube
Imperial
Area............................................................................................. 0.476 in2
Outside Diameter........................................................................ 1.69 in
Wall Thickness ........................................................................... 0.095 in
Weight per Foot.......................................................................... 1.62 lb/ft
Moment of Inertia....................................................................... 0.152 in4
Section Modulus......................................................................... 0.180 in3
Radius of Gyration ..................................................................... 0.565 in
Metric
307.12 mm2
42.93 mm
2.41 mm
2.42 kg/m
3.86 mm4
2.95 mm3
14.35 mm
Standard vertical dimension is 2 m.
Volume 2
Section 2.1
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SureLock Systems Scaffolding
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Sure Lock Diagonal Brace -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 72 ksi
495 N/mm2
Tensile Stress (Yield) min....................................................Fy 55 ksi
380 N/mm2
End (Brace Head) Casting [213919 LH, 213920 RH]
Material: Ductile Iron................................................................. ASTM A536, Grade 60-40-18
Tensile Stress (Ultimate) min ..............................................Fu 60 ksi
415 N/mm2
Tensile Stress (Yield) min....................................................Fy 40 ksi
275 N/mm2
Finish.......................................................................................... Galvanized
Bolt [213909]
Description.................................................................................. Special shoulder , self locking
Material....................................................................................... ASTM A325, 1/2 x 1-1/4
Finish........................................................................................... Zinc
Allowable Load
Bay Widths
feet
3 ft 10 in
5 ft 2 in
5 ft 4 in
7 ft 0 in
10 ft 0 in
meter
1.15
1.57
1.63
2.13
3.05
Maximum Allowable Load
(Tension or Compression)
lb
kN
1215
5.40
1000
4.45
980
4.35
765
3.40
480
2.14
(1) Values were calculated from 2.13 m actual test.
(2) Vertical span:
The installed height is two meters for all diagonals.
(3) Application:
Minimum Requirement: Install every 3rd tier vertically and every 4th bay
horizontally for normal scaffolding application.
(4) All F.S.: 4.0:l
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Volume 2
Section 2.1
Sure Lock Double Ledger -- Structural Properties
Standard Lengths
Metric
Imperial
5 ft 2 in
1.57 m
5 ft 4 in
1.63 m
7 ft 0 in
2.13 m
10 ft 0 in
3.05 m
Part No.
13037
13004
Tip-to-Tip Dimension
Imperial
Metric
5 ft 0¼ in
1.53 m
5 ft 2¼ in
1.59 m
6 ft 10¼ in 2.09 m
9 ft 10¼ in 3.01 m
Imperial
Moment of Inertia (at center) Ix .............................................. 5.847 in4
Iy .............................................. 0.282 in4
Section Modulus (at centre) Sx ............................................. 1.864 in3
Sx ............................................. 0.297 in3
Metric
2.43E6 mm4
1.17E5 mm4
3.05E4 mm3
4.87E3 mm3
Tube
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
Volume 2
Section 2.1
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SureLock Systems Scaffolding
Page 17
Sure Lock Double Ledger -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
End Castings (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A27, Grade 70-36 Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
Bar
Material: Steel ............................................................................ ASTM A572
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
Tensile Stress (Yield) min....................................................Fy 50 ksi
Diameter ..................................................................................... 0.75 in
Grade 50
480 N/mm2
345 N/mm2
19.05 mm
Finish.......................................................................................... Galvanized
Allowable Load
Bay Width
feet
5 ft 2 in
5 ft 4 in
7 ft 0 in
10 ft 0 in
meters
1.57
1.63
2.13
3.05
Maximum Uniformly
Distributed Load
lb/ft
kg/m
785
1170
734
1094
428
638
227
338
(1) Maximum load transferred through end: 2000 lb [909 kg] each end.
(2) F.S.: 4:1
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Volume 2
Section 2.1
Sure Lock Heavy Duty Ledger -- Structural Properties
Standard Lengths
Imperial
Metric
5 ft 2 in
1.57 m
5 ft 4 in
1.63 m
7 ft 0 in
2.13 m
Part No
13044
213098
13005
Tip-to-tip Dimension
Imperial
Metric
5 ft 0¼ in
1.53 m
5 ft 2¼ in
1.59 m
6 ft 10¼ in 2.09 m
Imperial
Moment of Inertia (at center) Ix ............................................13.63 in4
Iy ............................................1.36 in4
Section Modulus (at center) Sx ...........................................3.10 in3
Sy ...........................................0.69 in3
Tube
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.12 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.27 in4
Section Modulus......................................................................... 0.28 in3
Radius of Gyration ..................................................................... 0.63 in
Volume 2
Section 2.1
28MAR97
Metric
5.67E6 mm4
5.64E5 mm4
5.08E4 mm3
1.12E4 mm3
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 19
Sure Lock Heavy Duty Ledger -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
End Castings (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A27, Grade 70-36 Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
"T" Section
Description:............................................................................WT 5 x 6 Structural T
Material: Steel........................................................................ASTM A572, Grade 50
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Finish.....................................................................................Galvanized, ASTM A123
Allowable Load
Bay Width
feet
5 ft 2 in
5 ft 4 in
7 ft 0 in
meter
1.57
1.63
2.13
Maximum Uniformly
Distributed Load
lb/ft
kg/m
1560
2326
1450
2162
800
1193
(1) Maximum load transferred through end: 3,000 lb (1365 kg) each end.
(2) Maximum load at any location: 3,000 lb (1365 kg).
(3) Maximum moment must not exceed: 4,200 ft-lb (61.29 kNm).
(4) F.S.: 4:1.
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Volume 2
Section 2.1
Sure Lock U-Transom -- Structural Properties
Standard Lengths
Imperial
Metric
3 ft 10 in
1.15 m
5 ft 0 in
1.5 m
7 ft 0 in
2.13 m
Part No
13032
13043
13054
End-to-end Dimension
Imperial
Metric
4 ft 0-5/8 in 1.218 m
5 ft 2-5/8 in 1.568 m
7 ft 2-5/8 in 2.198 m
Tube
Imperial
Area............................................................................................. 0.697 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.125 in
Nominal Weight ......................................................................... 2.37 lb/ft
Moment of Inertia....................................................................... 0.276 in4
Section Modulus......................................................................... 0.290 in3
Radius of Gyration ..................................................................... 0.692 in
Volume 2
Section 2.1
28MAR97
Metric
17.7 mm2
48.26 mm
3.18 mm
3.54 kg/m
1.15E5 mm4
4.76E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 21
Sure Lock U-Transom -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
"U" Section
Material: Steel........................................................................ASTM A36
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
250 N/mm2
6.35 mm
Finish.....................................................................................Galvanized, ASTM A123
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Volume 2
Section 2.1
Sure Lock Cal-Guardrail -- Structural Properties
Standard Lengths
Imperial
Metric
2 ft 2 in
660 mm
3 ft 10 in
1.15 m
5 ft 4 in
1.62 m
7 ft 0 in
2.13 m
10 ft 0 in
3.05 m
Part No
Tip-to-tip Dimension
Imperial
Metric
2 ft 0¼ in
0.61 m
3 ft 8¼ in
1.11 m
5 ft 2¼ in
1.59 m
6 ft 10¼ in 2.09 m
9 ft 10¼ in 3.01 m
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
Finish.......................................................................................... Galvanized
Volume 2
Section 2.1
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SureLock Systems Scaffolding
Page 23
Sure Lock Lattice Girder -- Structural Properties
Standard Lengths
Imperial
Metric
21 ft
6.39 m
Part No.
13019
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
Finish.......................................................................................... Galvanized
Allowable Load
Designed for 220 lb/ft at 3:1 safety factor.
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Volume 2
Section 2.1
Sure Lock Base Collar -- Structural Properties
Standard Length
Imperial
Metric
9¼ in
234 mm
Part No
13008
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Volume 2
Section 2.1
28MAR97
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 25
Sure Lock Base Collar -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513, Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Rosette [213905]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 38 ksi
Material Thickness ..................................................................... 0.375 in
400 N/mm2
260 N/mm2
9.53 mm
Finish.....................................................................................Galvanized, ASTM A123
SureLock Systems Scaffold
Page 26
28MAR97
Volume 2
Section 2.1
Sure Lock Screwjack -- Structural Properties
Standard Length
Imperial Metric
24 in
0.6 m
Tube
Imperial
Area............................................................................................. 0.804 in2
Outside Diameter........................................................................ 1.50 in
Wall Thickness ........................................................................... 0.197 in
Nominal Weight ......................................................................... 2.736 lb/ft
Moment of Inertia....................................................................... 0.173 in4
Section Modulus......................................................................... 0.232 in3
Radius of Gyration ..................................................................... 0.465 in
Volume 2
Section 2.1
28MAR97
Part No
13010
Metric
518.4 mm2
38.0 mm
5.0 mm
4.08 kg/m
7.22E4 mm4
3.80E3 mm3
1.18E1 mm
SureLock Systems Scaffolding
Page 27
Sure Lock Screwjack -- Design Data
Tube
Imperial
Metric
Material: Steel ............................................................................ High Strength
Tensile Stress (Yield) min....................................................Fy 51 ksi
350 N/mm2
Thread ......................................................................................... Roll Formed Continuous
Pitch ............................................................................................ 0.315 in
8.0 mm
Base Plate
Material:...................................................................................... Cold Formed Steel
Dimensions ................................................................................. 6.0 in square 150 mm square
Material Thickness ..................................................................... 0.197 in
5.0 mm
Handle
Material:...................................................................................... Malleable Cast Iron
Thread ......................................................................................... Precision Cut Coil
Finish.......................................................................................... Hot Dip Galvanized
Allowable Load
Extension
in
6
12
18
(1) F.S.:
SureLock Systems Scaffold
Page 28
mm
150
300
450
Maximum
Concentric Load
lb
kN
14,600
65.0
12,400
55.0
11,800
52.5
4:1.
28MAR97
Volume 2
Section 2.1
Sure Lock Screwjack -- Capacity
Sure Lock Screwjack
Allowable Loading
90
80
70
65.0 kN @ 150 mm
60
55.0 kN @ 300 mm
50
52.5 kN @ 450
F.S. = 4.0:1
40
30
20
10
0
150
300
450
Screwjack Extension -mm
20
18
16
14.6 kips @ 6
14
12.4 kips @ 12 in
12
11.8 kips @ 18
10
F.S. = 4.0:1
8
6
4
2
0
6
12
18
Screwjack Extension - in
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 29
Sure Lock Swivel Base Jack -- Structural Properties
Standard Length
Imperial
Metric
24 in
0.47m
Part No
13011
Safe Working Loads
F.S. = 4:1
lb
2500
F.S. = 3:1
kg
1134
SureLock Systems Scaffold
Page 30
lb
3400
28MAR97
F.S. = 2.5:1
kg
1542
lb
4000
kg
1814
Volume 2
Section 2.1
Sure Lock Side Bracket -- Structural Properties
[One-Board (Stub Ledger)]
Standard lengths
Metric
Imperial
9-5/8 in
245 mm
21 in
533 mm
31-1/8 in
791 mm
Part No.
213111
213009
213113
Also Available
41 in
1.05 m
213104
[One-Board (Stub Ledger)
[Two-Board]
[Three-Board]
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Volume 2
Section 2.1
28MAR97
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 31
Sure Lock Side Bracket -- Design Data
[One-Board (Stub Ledger)]
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513 Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Plate
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
250 N/mm2
6.35 mm
End Casting (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A27 Grade 70-36. Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
Finish.......................................................................................... Galvanized
Allowable Load
Designed for 400 plf (597 kg/m)
SureLock Systems Scaffold
Page 32
28MAR97
Volume 2
Section 2.1
Sure Lock Side Bracket -- Structural Properties
[Two-Board]
Standard lengths
Imperial
Metric
9-5/8 in
245 mm
21 in
533 mm
31-1/8 in
791 mm
Part No.
213111
213009
213113
Also Available
41 in
1.05 m
213104
[One-Board (Stub Ledger)]
[Two-Board]
[Three-Board]
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Volume 2
Section 2.1
28MAR97
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 33
Sure Lock Side Bracket - Design Data
[Two-Board]
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513 Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Coupling Pin [213901]
Material: Steel ............................................................................ ASTM 513 Type 1 or Type 2
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Outside Diameter........................................................................ 1.59 in
40.4 mm
Wall Thickness ........................................................................... 0.110 in
2.79 mm
Cold drawn to final OD and wall thickness from 1.625 in OD and 0.095 in.
End Castings (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A36 Grade 70-36. Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
Finish.......................................................................................... Galvanized
Allowable Load
Designed for 400 plf (597 kg/m)
SureLock Systems Scaffold
Page 34
28MAR97
Volume 2
Section 2.1
Sure Lock Side Bracket -- Structural Properties
[Three-Board]
Standard lengths
Imperial
Metric
9-5/8 in
245 mm
21 in
533 mm
31-1/8 in
791 mm
Part No.
213111
213009
213113
Also Available
41 in
1.05 m
213104
[One-Board (Stub Ledger)]
[Two-Board]
[Three-Board]
Tube
Imperial
Area............................................................................................. 0.67 in2
Outside Diameter........................................................................ 1.90 in
Wall Thickness ........................................................................... 0.120 in
Nominal Weight ......................................................................... 2.28 lb/ft
Moment of Inertia....................................................................... 0.267 in4
Section Modulus......................................................................... 0.281 in3
Radius of Gyration ..................................................................... 0.631 in
Volume 2
Section 2.1
28MAR97
Metric
432.25 mm2
48.26 mm
3.05 mm
3.40 kg/m
1.11E5 mm4
4.60E3 mm3
1.60E1 mm
SureLock Systems Scaffolding
Page 35
Sure Lock Side Bracket -- Design Data
[Three-Board]
Tube
Imperial
Metric
Material: Steel ............................................................................ ASTM A513 Type 1
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Coupling Pin [213901]
Material: Steel ............................................................................ ASTM 513 Type 1 or Type 2
Tensile Stress (Ultimate) min ..............................................Fu 66 ksi
455 N/mm2
Tensile Stress (Yield) min....................................................Fy 50 ksi
345 N/mm2
Outside Diameter........................................................................ 1.59 in
40.4 mm
Wall Thickness ........................................................................... 0.110 in
2.79 mm
Cold drawn to final OD and wall thickness from 1.625 in OD and 0.095 in.
End Castings (Ledger Head) [213906]
Material: Steel ............................................................................ ASTM A36 Grade 70-36. Class 2
Tensile Stress (Ultimate) min ..............................................Fu 70 ksi
480 N/mm2
Tensile Stress (Yield) min....................................................Fy 36 ksi
250 N/mm2
Wedge [213903, rivet 213904]
Material: Steel ............................................................................ ASTM A36
Tensile Stress (Ultimate) min ..............................................Fu 58 ksi
Tensile Stress (Yield) min....................................................Fy 36 ksi
Material Thickness ..................................................................... 0.25 in
400 N/mm2
250 N/mm2
6.35 mm
Finish.......................................................................................... Galvanized
Allowable Load
Designed for 400 plf (597 kg/m)
SureLock Systems Scaffold
Page 36
28MAR97
Volume 2
Section 2.1
Sure Lock Ladders
Standard lengths
Imperial
Metric
Starting Bracket
4 ft-0 in
1.22 m
5 ft-0 in
1.52 m
10 ft-0 in
3.05m
Volume 2
Section 2.1
Part No.
11059
213202
11056
213204
28MAR97
SureLock Systems Scaffolding
Page 37
Sure Lock Adaptors
Standard sizes
Imperial
Metric
2 in x 2 in
48 x 48
2 in x 2 in
48 x 48
2 in x 2 in
48 x 48
2 in x 2 in
48 x 48
SureLock Systems Scaffold
Page 38
Part No.
213100
13012
213101
13013
Style
RAB
RAW
SWB
SWW
28MAR97
Right Angle Bolt
Right Angle Wedge
Swivel bolt
Swivel Wedge
Volume 2
Section 2.1
Sure Lock Base Plate
Part No.
213094
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 39
S
CAFFOLD PLANK
1.0 SCOPE
1.1 This specification applies to all planking furnished for scaffolding to others by Company
employees in loose or erected condition. Refer to the Plank Section of this manual for
further details.
2.0 SPECIFICATION
2.1 All solid sawn wooden scaffold planks shall be "scaffold plank grade" and shall bear the
grade stamp of a grading agency approved by the American Lumber Standards Committee
per ANSI A10.8.
2.2 All wooden scaffold planks, other than solid sawn, shall bear the seal of an independent
nationally recognized inspection agency certifying compliance with ANSI A10.8.
SureLock Systems Scaffold
Page 40
28MAR97
Volume 2
Section 2.1
A
LUMA STEEL PLANK
This system provides a complete solution for all working platform needs. Based upon a
patented high strength/light weight steel profile, the plank system offers unique advantages that
no other wood or steel plank offers
Safer To Use:
” Greater load bearing capacity than any wood plank.
” Patented side rail increases transverse stiffness and provides superior longitudinal
strength.
” Stiffer than wood plank.
” No rot failure concerns as with wood planks.
” Punched surface provides excellent drainage and traction in wet weather without
making the surface excessively abrasive to kneel on.
Ideal for use where wood materials pose a fire risk.
” End hooks provide continuity in work surface over supports.
” Auto retractable wind latch to prevent wind uplifting.
” End hooks incorporate a hole, providing a safer means of hoisting during installation.
Manageable:
” Wood plank is 20% heavier than steel plank.
” Rounded/sloped side rail makes gripping easier and reduces user fatigue.
” Auto retractable wind latch will not be damaged when dropped into place and allows
plank removal by disengaging the wind latch at one end only.
” End hooks are designed so that planks can be dropped in place.
” End hooks incorporate a hole for easier lifting during installation.
Cost Effective:
” Substantial savings over wood due to longer life span.
” Aluminum/zinc heavy commercial coating for an extended corrosion free life that
exceeds equivalent coating of zinc only.
” Better abrasion resistance versus equal zinc coating.
” Nestability facilitates manually handling in pairs and reduces storage and shipping
volume.
” End hooks are hot dipped galvanized as opposed to plated which extends life and good
appearance.
Full Range of Accessories:
” Easy to place keys that lock planks together to create a mat resulting in better sharing
of loads from plank to plank and improved stiffness.
” Unique ramps that fit over the end of the hooks that enable the plank to be safety
lapped without creating a tripping hazard.
” Purposely designed toeboards that provide a safe economical alternative to wood
toeboard planks.
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 41
Aluma Steel Plank
Standard lengths (Dim L)
Imperial
Metric
Part No.
2 ft 2 in
0.65m
3 ft 10 in
1.15 m
13231
5 ft 2 in
1.57 m
5 ft 4 in
1.63 m
7 ft 0 in
2.13 m
10 ft 0 in
3.05 m
13210
SureLock Systems Scaffold
Page 42
Weight
Imperial
13222
17.27 lb
13252
13254
13270
40.00 lb
28MAR97
Metric
11.09 lb
7.85 kg
22.20 lb
22.80 lb
28.00 lb
18.18 kg
5.04 kg
10.09 kg
10.36 kg
12.72 kg
Volume 2
Section 2.1
Aluma Steel Plank -- Wind Latch
The steel plank can be removed from one end by retracting one wind latch. Rotating the plank
about the opposite end releases the other wind latch.
Aluma Steel Plank -- Allowable Loading
Effective Length
Dimension "L"
13222
13231
13252
13254
13270
13210
Volume 2
Section 2.1
Imperial
2 ft 2 in
3 ft 10 in
5 ft 2 in
5 ft 4 in
7 ft 0 in
10 ft 0 in
Metric
0.65 m
1.15 m
1.57 m
1.63 m
2.13 m
3.05 m
Load Sheet
Allowable
Allowable Load
Concentrated Load
per linear
over 6 in (150 mm)
foot/meter
Imperial Metric Imperial Metric
350 lb
159 kg
79 lb
118 kg
350 lb
159 kg
79 lb
118 kg
350 lb
159 kg
79 lb
118 kg
350 lb
159 kg
79 lb
118 kg
350 lb
159 kg
79 lb
118 kg
250 lb
114 kg
39.5 lb
118 kg
28MAR97
Equivalent Platform
Load
lb/ft2 (kg/m2)
Imperial
Metric
100
489
100
489
100
489
100
489
100
489
50
245
SureLock Systems Scaffolding
Page 43
Aluma Steel Plank -- Ramp
Standard lengths (Dim L)
Metric
Part No.
Imperial
2 ft 2 in
0.65 m
13212
3 ft 10 in
1.15 m
13213
SureLock Systems Scaffold
Page 44
Weight
Imperial
3.61 lb
4.80 lb
28MAR97
Metric
1.6 kg
2.2 kg
Tabs
2
3
Volume 2
Section 2.1
Aluma Steel Plank -- Key Lock System
A unique key system provides a convenient way to tie any number of planks together giving
the following benefits.
” Loads are shared between a number of planks improving safety and stiffness.
” Improved resistance to lateral movement or wind uplift.
Each size of plank incorporates special diamond-shaped holes in the side rails for the locking
key clamps.
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 45
Aluma Steel Plank -- Lapping Clamp
Aluma Steel Plank -- Plank Coverage
Nominal Ledger Length
Imperial
2 ft 2 in
3 ft 10 in
5 ft 2 in
5 ft 4 in
7 ft 0 in
SureLock Systems Scaffold
Page 46
Metric
0.65 m
1.15 m
1.57 m
1.63 m
2.13 m
Number
of Planks
2
4
6
6
8
28MAR97
Distance Center of Standard
to Edge of Plank
Imperial
Metric
3.5 in
89 mm
3.625 in
92 mm
2.625 in
67 mm
3.5 in
89 mm
3.875 in
98 mm
Volume 2
Section 2.1
10 ft 0 in
Volume 2
Section 2.1
3.05 m
12
28MAR97
2.75 in
70 mm
SureLock Systems Scaffolding
Page 47
Sure Lock Stairway -- Structural Properties
Part No. 213215
2.13 m Stairway
St i
Swivel link allows one style
of stringer to be used in
either left hand or right hand
applications.
Part No. 213303
Stair Tread
SureLock Systems Scaffold
Page 48
28MAR97
Volume 2
Section 2.1
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 49
Q
65' 0"
10 Lifts
58' 6"
9 Lifts
52' 0"
8 Lifts
45' 6"
7 Lifts
39' 0"
6 Lifts
32' 6"
5 Lifts
26' 0"
4 Lifts
19' 6"
3 Lifts
13' 0"
2 Lifts
6' 6"
1 Lift
UANTITY ESTIMATOR
3 BAYS
8
48
8 66 44
8 10 10
4
4 44
8 60 40
8
9
9
8
40
8 54 36
8
8
8
8 32
8 48 32
8
7
7
4
4 28
8 42 28
8
6
6
8
24
8 36 24
8
5
5
8 16
8 30 20
8
4
4
12
8
8 24 16
8
3
3
4
8
4
8 18 12
8
2
2
8
8 12
8
8
1
1
3 BAYS
4 BAYS
10
60
10 88 55
10 10 10
4
4 56
10 80 50
10
9
9
10
50
10 72 45
10
8
8
10 40
10 64 40
10
7
7
4
4 36
10 56 35
10
6
6
10
30
10 48 30
10
5
5
10 20
10 40 25
10
4
4
12 12
10 32 20
10
3
3
6
8
6
10 24 15
10
2
2
10
10 16 10
10
1
1
4 BAYS
5 BAYS
12
72
12 110 66
12
20 20
6
6 66
12 100 60
12
18 18
12
60
12
90 54
12
16 16
12 48
12
80 48
12
14 14
6
6 42
12
70 42
12
12 12
12
36
12
60 36
12
10 10
12 24
12
50 30
12
8
8
18 12
12
40 24
12
6
6
6
12
6
12
30 18
12
4
4
12
12
20 12
12
2
2
5 BAYS
6 BAYS
14
84
14 132 77
14
20 20
6
6 78
14 120 70
14
18 18
14
70
14 108 63
14
16 16
14 56
14
96 56
14
14 14
6
6 50
14
84 49
14
12 12
14
42
14
72 42
14
10 10
14 28
14
60 35
14
8
8
18 16
14
48 28
14
6
6
8
12
8
14
36 21
14
4
4
14
14
24 14
14
2
2
6 BAYS
1 m [3 ft 3 in]
Standard
2 m [6 ft 6 in]
Standard
3 m [9 ft 10 in]
Standard
Base Collar
Ledger
Ledger
A
B
Bay Brace
Bay Brace
C
D
Screwjack
SureLock Systems Scaffold
Page 50
28MAR97
7 BAYS
16
16
16
8
16
16
16
16
16
16
16
8
16
16
16
16
16
8 BAYS
96
88
30
88
80
27
80
72
24
64
64
21
56
56
18
48
48
15
32
40
12
16
32
9
8
24
6
154
30
8
140
27
126
24
16
112
21
8
98
18
84
15
16
16
70
16
12
24
16
56
16
9
8
16
16
42
16
6
16
16
28
16
16
3
3
7 BAYS
18
18
18
8
18
18
18
18
18
18
18
8
18
18
18
18
18
176
30
8
160
27
144
24
18
128
21
8
112
18
108
99
30
100
90
27
90
81
24
72
72
21
64
63
18
54
54
15
36
45
12
20
36
9
10
27
6
96
15
18
18
80
18
12
24
18
64
18
9
10
16
18
48
18
6
18
18
32
18
18
3
3
8 BAYS
9 BAYS
20
120
20 198 110
20
30
30
10
10 110
20 180 100
20
27
27
20
100
20 162
90
20
24
24
20
80
20 144
80
20
21
21
10
10
70
20 126
70
20
18
18
20
60
20 108
60
20
15
15
20
40
20
90
50
20
12
12
30
20
20
72
40
20
9
9
10
20
10
20
54
30
20
6
6
20
20
36
20
20
3
3
9 BAYS
Volume 2
Section 2.1
Sure Lock Quantity Estimator
10 BAYS
22
132
22 220 121
22
30
30
10
10 122
22 200 110
22
27
27
22
110
22 180
99
22
24
24
22
88
22 160
88
22
21
21
10
10
78
22 140
77
22
18
18
22
66
22 120
66
22
15
15
22
44
22 100
55
22
12
12
30
24
22
80
44
22
9
9
12
20
12
22
60
30
22
6
6
22
22
40
22
22
3
3
10 BAYS
11 BAYS
24
144
24 242 132
24
30
30
12
12 132
24 220 120
24
27
27
24
120
24 198 108
24
24
24
24
96
24 176
96
24
21
21
12
12
84
24 154
84
24
18
18
24
72
24 132
72
24
15
15
24
48
24 110
60
24
12
12
36
24
24
88
48
24
9
9
12
24
12
24
66
33
24
6
6
24
24
44
24
24
3
3
11 BAYS
12 BAYS
26
156
26 264 143
26
40
40
12
12 154
26 240 130
26
36
36
26
130
26 216 117
26
32
32
26 104
26 192 104
26
28
28
12
12
92
26 168
91
26
24
24
26
78
26 144
78
26
20
20
26
52
26 120
65
26
16
16
36
28
26
96
52
26
12
12
14
24
14
26
72
36
25
8
8
26
26
48
26
26
4
4
12 BAYS
13 BAYS
28
168
28 286 154
28
40
40
14
14 164
28 260 140
28
36
36
28
140
28 234 126
28
32
32
28 112
28 208 112
28
28
28
14
14
98
28 182
98
28
24
24
28
84
28 156
84
28
20
20
28
56
28 130
70
28
16
16
42
28
28 104
56
28
12
12
14
28
14
28
78
39
28
8
8
28
28
52
28
28
4
4
13 BAYS
14 BAYS
30
180
30 308 165
30
40
40
14
14 176
30 280 150
30
36
36
30
150
30 252 135
30
32
32
30 120
30 224 120
30
28
28
14
14 106
30 196 105
30
24
24
30
90
30 168
90
30
20
20
30
60
30 140
75
30
16
16
42
32
30 112
60
30
12
12
16
28
16
30
84
42
30
8
8
30
30
56
30
30
4
4
14 BAYS
15 BAYS
32
192
32 330 176
32
40
40
16
16 186
32 300 160
32
36
36
32
160
32 270 144
32
32
32
32 128
32 240 128
32
28
28
16
16 112
32 210 112
32
24
24
32
96
32 180
96
32
20
20
32
64
32 150
80
32
16
16
48
32
32 120
64
32
12
12
16
32
16
32
90
45
32
8
8
32
32
60
32
32
4
4
15 BAYS
65' 0"
10 Lifts
58' 6"
9 Lifts
52' 0"
8 Lifts
45' 6"
7 Lifts
39' 0"
6 Lifts
32' 6"
5 Lifts
26' 0"
4 Lifts
19' 6"
3 Lifts
13' 0"
2 Lifts
6' 6"
1 Lift
Note:
Quantities of Guardrail and Midrail
required at all work levels in use
are not included.
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 51
C
ANTILEVER SCAFFOLD
1.0 SCOPE
1.1 This specification applies to all cantilevered scaffolds, or members that are
cantilevered from a scaffold, that are furnished to others by Company employees in
loose or erected condition when the Company has suggested a layout and/or assembled
a configuration.
2.0 SPECIFICATION
2.1 All cantilever applications must have a drawing and assembly and dismantling
instructions provided with them, that were completed by a Company Engineer and
approved by a Company Professional Engineer.
2.2 The next three pages are drawings of System Scaffold with cantilevered work
platforms that may be used for standard applications without engineering approval,
provided that their load and dimensional limitations are adhered to.
SureLock Systems Scaffold
Page 52
28MAR97
Volume 2
Section 2.1
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 53
SureLock Systems Scaffold
Page 54
28MAR97
Volume 2
Section 2.1
Volume 2
Section 2.1
28MAR97
SureLock Systems Scaffolding
Page 55