PTC Heavy Lifting Barge

PTC Heavy Lifting
Barge
The perfect solution
for heavy lifting
operations where land
and water meet
Worldwide specialists
in heavy lifting and transport

PTC Heavy Lifting Barge
Heavy lifting for marine projects
Heavy lifting operations for harbor and offshore projects are usually carried out using either sheerlegs or
fl oating cranes. Sheerlegs have the advantage of a greater lifting capacity, while fl oating cranes can
revolve (slew) which gives much greater operational fl exibility.
Flexibility
Mammoet has developed its PTC cranes over 15 years and used them for 17,000 heavy lifts. We have
now installed one of these PTCs on a large barge. The key advantage of our design is that the PTC can
operate either with the boom fi xed in sheerlegs mode, for the highest lifting capacity, or in revolving
mode, for much greater fl exibility when picking up and placing the load. The barge has a relatively
shallow draught and can therefore operate close to the shore, even in harbors which have not been fully
dredged.
This multifunctional design can bring great time-savings when constructing large jetties, other harbor
works and offshore structures. The PTC on a barge has many advantages over large sheerlegs, fl oating
cranes and jack-up rigs.
PTC
Mammoet’s PTC cranes, developed in-house, have established a reputation for reliably and safely
handling the heaviest loads. Their A-frame jibs are extremely stable and resist side loads. The crane
installed on the barge has specially upgraded slewing drives so that it can rotate (slew) with a load on
the hook even when the barge has an incline up to three degrees. The ballasting of the barge does not
have to be changed during lifting operations, this makes the work safer, quicker and more effi cient.
Operating modes
In slewing (revolving) mode the whole PTC can rotate a full circle. This movement is relatively quick
(around 15 minutes for a typical movement of half a circle). Compared with using conventional sheerlegs,
the slewing mode greatly helps to simplify lifting operations and save time.
In sheerlegs mode the upper carrier of the PTC is fi xed and the slewing system is not used. Both the
PTC’s ballast and the barge itself act as counterweights. This mode provides the highest crane capacity.
Finally, the tie-down mode is used during sea voyages. In this mode the crane is fully secured for safe
transit.
2 | 3

Key parameters
Net lifting capacity:
Sheerlegs mode 974 tons at 20 meters radius 173 tons at 76 meters radius
Slewing mode 267 tons at 20 meters radius 10 tons at 60 meters radius
The net lifting capacity takes account of the weight of the main and auxiliary hook blocks and wire ropes
and is therefore fully available for lifting loads. The auxiliary hoist has a capacity of 30 tons.
Barge: 100 x 30 meters, draught with maximum load on the hook 4.2 meters
Maximum hook height (main hoist) 64 meters
Operating envelope
The PTC on the barge has a wide operating envelope and can continue lifting up to:
- 12.86 m/s wind speed
- 0.6 m signifi cant wave height
The full lift capacity is available within this envelope, i.e. there is no derating. Certain lifting jobs can be
undertaken at signifi cant wave heights up to 1.3 meters. However, when the operating boundaries are
approached Mammoet personnel on site will assess the situation and decide if the lifting operations may
be continued.

Operational effi ciency
The main hoist operates at a full load speed of 1.8 meters per minute. The 30 ton capacity auxiliary hoist
runs at 18 meters per minute. The slewing (rotation) and luffi ng (boom up/down) speeds are also high
for a crane of this size. The PTC is fi tted with two diesel-powered hydraulic powerpacks. This ensures
that a lift can be fi nished even when one powerpack fails.
The barge with the PTC is towed to the work site by tugs. Once on site it is relocated by warping
winches, while a tug is kept on stand-by for safety reasons.
Applications
• Construction of large jetties
• General harbor construction operations
• Nearshore heavy lifting operations
4 | 5
BARGE E331
PTC IV ON BARGE
TIE DOWN MODE
PTC IV ON BARGE
SHEER LEG MODE
PTC IV ON BARGE
REVOLVING MODE
BARGE E331 BARGE E331
Bow

Crane Geometry:
Indication A: Load Table for Sheerleg Mode
Crane Confi guration SSL Sheerleg Mode
Crane Duty Normal
Head Duty Type Heavy [1600t]
A-frame length [m] 67.2
A-frame Maximum Angle [ø] 81.54
Hsig & Maximum Period T 1m & 6s / 0.6m & 8.5s
Superballast usage Stays Fixed to Deck and Fixed Ballast with a Triangle Spreader
Capacity Deck Stays [t] 900
Fixed Ballast on Ring [t] 380t at 11.83 [m]: 320 [t] lower ballast & 60t tray mass [lower and upper]
Backmast Radius [m] 13.486 [m]
Windspeed 12.86 [m/s]
Max. Pitch [deg] 0.5
Max. Roll [deg] 2
Static Trim [deg] 0.5
Static Heel [deg] 0.5
Fhoist 1.1
Fduty 1.05
Sideload [deg] 2.5
Offl load [deg] 1
Auxiliary Hoist Max. Capacity [t] 30
Reeving [-] 3
Max sidelead [deg] 4
Max offl ead [deg] 7
Load Capacity Table
Radius SWL
Aframe
Angle
Notes
• The mainboom is composed according to sketch (copied from in drawing
A05-66000-14-01A)
• Crane designed according: DIN 15018part1,3, DIN 15019part2, DIN
15020part1 and DIN 1055part4
• Lifting capacity for lifting on barge according to Lloyds Register of
Shipping [code for lifting appliances in a marine environment January
2003]
• Weight of lower blocks, hoisting wire,slings, spreaders, aux. hoist, etc., is
considered as part of the load.
• The lifting capacity is only valid when the main-hoist is reeved according
to the table
• The weight of the ballast trays is counted as ballastweight.
• Interpolation of working loads between radii is allowed.
• Combined lifting of main hoist and auxiliary hoist is not allowed
• The maximum sidelead of 4 degrees for the auxiliary hoist may not be
6 | 7
Height Reeving
Minimum
Required
tugger
capacity
cross
direction of
the crane
Minimum
Required
tugger
capacity
longitudonaldirection
of the
crane
Minimum
Required
resultant
tugger
capacity
[m] [t] [deg] [m] [-] [t] [t] [t]
20 1017 81.54 71.42 22 44.4 17.7 47.8
21 992 80.67 71.25 22 43.3 17.3 46.6
22 969 79.81 71.07 22 42.3 16.9 45.5
23 947 78.94 70.86 22 41.3 16.5 44.5
24 926 78.07 70.65 22 40.4 16.2 43.5
25 906 77.19 70.41 22 39.5 15.8 42.6
26 886 76.31 70.16 22 38.6 15.5 41.6
27 868 75.43 69.89 22 37.9 15.1 40.8
28 850 74.54 69.61 22 37.1 14.8 39.9
29 833 73.65 69.31 22 36.3 14.5 39.1
30 817 72.76 68.99 22 35.6 14.3 38.4
31 801 71.86 68.67 22 34.9 14.0 37.6
32 786 70.95 68.31 22 34.3 13.7 36.9
33 771 70.05 67.94 22 33.6 13.5 36.2
34 758 69.14 67.56 22 33.1 13.2 35.6
35 744 68.21 67.15 22 32.5 13.0 35.0
36 732 67.29 66.72 22 31.9 12.8 34.4
37 719 66.36 66.28 22 31.4 12.5 33.8
38 707 65.42 65.82 22 30.8 12.3 33.2
39 695 64.47 65.33 22 30.3 12.1 32.7
40 684 63.51 64.83 22 29.8 11.9 32.1
41 674 62.55 64.3 22 29.4 11.8 31.7
42 663 61.58 63.75 22 28.9 11.6 31.1
43 652 60.6 63.18 22 28.4 11.4 30.6
44 643 59.61 62.59 22 28.0 11.2 30.2
45 630 58.61 61.97 22 27.5 11.0 29.6
46 612 57.59 61.33 22 26.7 10.7 28.8
47 594 56.57 60.66 22 25.9 10.4 27.9
48 576 55.53 59.97 22 25.1 10.1 27.1
49 560 54.48 59.25 22 24.4 9.8 26.3
50 544 53.42 58.5 22 23.7 9.5 25.6
51 530 52.34 57.72 22 23.1 9.2 24.9
52 516 51.24 56.92 22 22.5 9.0 24.2
53 502 50.12 56.07 22 21.9 8.8 23.6
54 489 49 55.2 22 21.3 8.5 23.0
55 477 47.84 54.28 22 20.8 8.3 22.4
56 465 46.67 53.34 22 20.3 8.1 21.8
57 454 45.46 52.34 22 19.8 7.9 21.3
58 443 44.23 51.31 22 19.3 7.7 20.8
59 432 42.99 50.24 22 18.8 7.5 20.3
60 422 41.7 49.1 22 18.4 7.4 19.8
61 413 40.39 47.93 22 18.0 7.2 19.4
62 404 39.03 46.69 22 17.6 7.1 19.0
63 395 37.63 45.39 22 17.2 6.9 18.6
64 387 36.18 44.01 22 16.9 6.8 18.2
65 378 34.68 42.56 22 16.5 6.6 17.8
66 369 33.13 41.04 22 16.1 6.4 17.3
67 357 31.5 39.42 22 15.6 6.2 16.8
68 343 29.79 37.67 22 15.0 6.0 16.1
69 329 27.98 35.8 22 14.4 5.7 15.5
70 316 26.04 33.76 22 13.8 5.5 14.8
71 302 23.98 31.56 22 13.2 5.3 14.2
72 288 21.69 29.07 22 12.6 5.0 13.5
73 273 19.16 26.27 22 11.9 4.8 12.8
74 258 16.23 22.98 22 11.3 4.5 12.1
75 240 12.63 18.87 22 10.5 4.2 11.3
76 216 7.29 12.69 22 9.4 3.8 10.1
76.43 187 0 4.16 22 8.2 3.3 8.8
exceeded; this will cause the wire to run out of the sheave
• Tugger capacity Fcross is calculated by SWLxsin(2.5) [SWLxsin(heel +
roll)]
• Tugger capacity Flong is calculated by SWLxsin(1) [SWLxsin(trim+ pitch)]
• Tugger capacity to be determined by √((SWLxsin(heel + roll)) 2 +
(SWLxsin(trim + pitch)) 2 )
• The minimum required resultant tugger capacity does NOT include the
tugger angles; the capacity of the tugger should be higher than stated
• The A-bock tackle [einzieh-werk] is to be tensioned to approximately 30t

Crane Geometry:
Indication B: Load Table for Full Revolving Mode
Crane Confi guration SSL Full Revolving Mode
Crane Duty Normal
Head Duty Type Heavy [1600t]
A-frame length [m] 67.2
A-frame Maximum Angle [ø] 81.54
Hsig & Maximum Period T 1m & 6s / 0.6m & 8.5s
Superballast usage Fixed Ballast at 11.83m
Fixed Ballast on Ring [t] 380t at 11.83 [m]: 320 [t] lower ballast & 60t tray mass [lower and upper]
Backmast Radius [m] 11.83 [m]
Windspeed 12.86 [m/s]
Max. Pitch [deg] 0.5
Max. Roll [deg] 2
Static Trim [deg] 0.5
Static Heel [deg] 1
Fhoist 1.1
Fduty 1.1
Sideload [deg] 3 / 1
Offl load [deg] 1 / 3
Auxiliary Hoist Max. Capacity [t] 30
Reeving [-] 3
Max sidelead [deg] 4
Max offl ead [deg] 7
Load Capacity Table
Radius SWL
Aframe
Angle
Height Reeving
Minimum
Required
tugger
capacity
in cross or
longi
tudonal
direction of
the crane
Advice
Minimum
Required
tugger
capacity in
longitudo
nal or cross
direction of
the crane
Minimum
Required
Resultant
tugger
capacity
[m] [t] [deg] [m] [-] [t] [t] [t]
20 310 81.54 71.42 22 16.2 5.4 17.1
21 296 80.67 71.25 22 15.5 5.2 16.3
22 282 79.81 71.07 22 14.8 4.9 15.6
23 268 78.94 70.86 22 14.0 4.7 14.8
24 254 78.07 70.65 22 13.3 4.4 14.0
25 240 77.19 70.41 22 12.6 4.2 13.2
26 230 76.31 70.16 22 12.0 4.0 12.7
27 220 75.43 69.89 22 11.5 3.8 12.1
28 210 74.54 69.61 22 11.0 3.7 11.6
29 200 73.65 69.31 22 10.5 3.5 11.0
30 190 72.76 68.99 22 9.9 3.3 10.5
31 182 71.86 68.67 22 9.5 3.2 10.0
32 174 70.95 68.31 22 9.1 3.0 9.6
33 166 70.05 67.94 22 8.7 2.9 9.2
34 158 69.14 67.56 22 8.3 2.8 8.7
35 150 68.21 67.15 22 7.9 2.6 8.3
36 144 67.29 66.72 22 7.5 2.5 7.9
37 138 66.36 66.28 22 7.2 2.4 7.6
38 132 65.42 65.82 22 6.9 2.3 7.3
39 126 64.47 65.33 22 6.6 2.2 7.0
40 120 63.51 64.83 22 6.3 2.1 6.6
41 116 62.55 64.3 22 6.1 2.0 6.4
42 111 61.58 63.75 22 5.8 1.9 6.1
43 107 60.6 63.18 22 5.6 1.9 5.9
44 102 59.61 62.59 22 5.4 1.8 5.6
45 98 58.61 61.97 22 5.1 1.7 5.4
46 94 57.59 61.33 22 4.9 1.6 5.2
47 91 56.57 60.66 22 4.8 1.6 5.0
48 87 55.53 59.97 22 4.6 1.5 4.8
49 84 54.48 59.25 22 4.4 1.5 4.6
50 80 53.42 58.5 22 4.2 1.4 4.4
51 77 52.34 57.72 22 4.0 1.3 4.2
52 74 51.24 56.92 22 3.9 1.3 4.1
53 71 50.12 56.07 22 3.7 1.2 3.9
54 68 49 55.2 22 3.6 1.2 3.8
55 65 47.84 54.28 22 3.4 1.1 3.6
56 63 46.67 53.34 22 3.3 1.1 3.5
57 60 45.46 52.34 22 3.2 1.1 3.3
58 58 44.23 51.31 22 3.0 1.0 3.2
59 55 42.99 50.24 22 2.9 1.0 3.1
60 53 41.7 49.1 22 2.8 0.9 2.9
61 51 40.39 47.93 22 2.6 0.9 2.8
62 48 39.03 46.69 22 2.5 0.8 2.7
63 46 37.63 45.39 22 2.4 0.8 2.5
64 43 36.18 44.01 22 2.3 0.8 2.4
65 41 34.68 42.56 22 2.1 0.7 2.3
66 - 33.13 41.04 22 - - -
67 - 31.5 39.42 22 - - -
68 - 29.79 37.67 22 - - -
69 - 27.98 35.8 22 - - -
70 - 26.04 33.76 22 - - -
71 - 23.98 31.56 22 - - -
72 - 21.69 29.07 22 - - -
73 - 19.16 26.27 22 - - -
74 - 16.23 22.98 22 - - -
75 - 12.63 18.87 22 - - -
76 - 7.29 12.69 22 - - -
76.43 - 0 4.16 22 - - -
Notes
• When the crane is in perpendicular position with the barge it is not
possible to reach a radius larger than 65m, however when the crane is
positioned parallel with the barge, the boom can reach a maximum radius
of 76.43m, or be laid down in the boomrest.
• The mainboom is composed according to sketch (copied from in drawing
A05-66000-14-01A)
• Crane designed according: DIN 15018part1,3, DIN 15019part2, DIN
15020part1 and DIN 1055part4
• Lifting capacity for lifting on barge according to Lloyds Register of
Shipping [code for lifting appliances in a marine environment January
2003]
• Weight of lower blocks, hoisting wire,slings, spreaders, aux. hoist, etc., is
considered as part of the load.
• The lifting capacity is only valid when the main-hoist is reeved according
to the table
• The weight of the ballast trays is counted as ballastweight.
• Interpolation of working loads between radii is allowed.
• Combined lifting of main hoist and auxiliary hoist is not allowed
• The maximum sidelead of 4 degrees for the auxiliary hoist may not be
exceeded; this will cause the wire to run out of the sheave
• Advised Tugger capacity Fcross or Flong is calculated by SWLxSIN(3)
[SWLxSIN(heel + roll)]
• Advised Tugger capacity Flong or Fcross is calculated by SWLxSIN(1)
[SWLxSIN(trim+ pitch)]
• Advised Tugger capacity to be determined by √((SWLxSIN(heel + roll)) 2 +
(SWLxSIN(trim + pitch)) 2 )
• The minimum required resultant tugger capacity does NOT include the
tugger angles; the capacity of the tugger should be higher than stated
• The A-bock tackle [einzieh-werk] is to be tensioned to approximately 30t

Worldwide specialists
in heavy lifting and transport
www.mammoet.com
Mammoet (S) Pte Ltd
7 Clementi Loop
Singapore 129811
Telephone: +65 6861 1638
Fax: +65 6861 2718