Slide 1

Report
Twin 40 Dockside Cranes and
Associated Terminal Operations
AAPA Facilities Engineering Seminar - 2007
Arun K. Bhimani, S.E.
President
Liftech Consultants Inc.
www.liftech.net
Robert Johansen, P.E.
Planning Director
DMJM HARRIS – AECOM
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Presentation Outline
Twin 40 Dockside Cranes – Arun Bhimani
Terminal Operations – Bob Johansen
Summary
Comments – Q & A
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Outline - Twin 40 Dockside Cranes
General Information
Head Blocks and Coupling
Head Block Stowage
Operational Issues
Design Considerations
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General Information
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Typical Dimensions
Rail Gauge
Outreach
Backreach
Lift Height
Overall Width
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100 ft typical, some 115 ft
200 – 225 ft
50 – 75 ft
136 ft
88.5 ft
80 t Total
Metric Tons
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80 t Total
30 t
30 t
30 t
30 t
Up to 40 t
30 t
30 t
Up to 40 t
Up to 60 t
Lift Capacity – Under Spreader
120 t Total
Speeds
Main Hoist
60 t Single Lift
40 t Single Lift
80 t Tandem Lift
fpm
Empty
Trolley
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245 - 295 fpm
310 fpm
245 - 310
500 fpm
800 fpm
Crane Weights – Metric Tons
Single Hoist
61 t
Dead Load
Trolley
HB + Spreader
Total
1455 t
27 t
1500 t
DHT40
80 t
1860 t
50 t
18 t
1950 t
Rope Towed Trolley Crane in Typhoon Area
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Increase
40 t
30%
Operating Wheel Loads – Seaside
Type
Service
Factored
(ASCE)
Single Hoist
DHT40
80 t
42 k/ft
60 k/ft
56 k/ft
81 k/ft
- Rope Towed Trolley Crane in Hurricane
Area - 8 Wheels per Corner
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Increase
33.3%
37.5%
Single Hoist
Dual Hoist
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Bromma
Single Hoist Twin 40
Advantages
Use with single hoist cranes
Multiple spreader suppliers
Disadvantages
Remove twin 20 spreader
Spread sheaves on trolley
Add twin 40 spreaders
Store on ground when
through
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Source: Bromma Presentation
Dual Hoist Twin 40 (DHT40) - Shanghai
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Number of DHT40 Cranes – ZPMC
Delivered
On Order
Capacity
PRC Other* Total
37
10
47
31
49
80
80 t
100 – 120 t
90%
10%
* Primarily Dubai, Singapore
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DHT40 Machinery
WS Hoist
Two Main Hoists
One Extended Trolley
Complex Dual Head Blocks
Special Operator Controls
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LS Hoist
Extended Trolley
Waterside
Sheaves
Two HB
Power
Cable
Reels
Landside
Sheaves
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DHT 40 Head Blocks
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Operator’s Controls
Left Console
Console
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8 Foot Switches
Right
DHT Head Blocks
Landside
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Waterside
Waterside Headblock
Separating Cylinder
Pitch Cylinder
Yaw Cylinder
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Landside Headblock
Ball clamp extended
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Ball clamp retracted
Headblock Relative Motion
Translation
Vertical offset
500 mm
Separation and Relative Skew
Control
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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Head Block Stowage
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DHT40 – Headblock Stowage
For single hoist operation, unused
headblock and spreader “two blocked” to
trolley
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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DHT40 Challenges
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DHT Operations
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Ship Side
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Landside
Ideal Ship Stow
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Ideal Land Side Operations
Bomb carts in position
Extra bomb carts in line
behind
Evenly stacked deck
containers
Same height containers
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Not an Ideal World
Efficient headblock uncoupling and re-coupling is required
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Bomb cart landing
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Simultaneous Entry
Entry
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Staggered
Head Block Coupling
Spreaders
closecylinder
together
Hydraulic
andused
levelto
while
handling
accommodate
two containers
of the same
container geometry
and
size space
and working
within
the spreaders
cell guides
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Spreaders spread apart
Spreaders
repositioned
and not
level while handling
while
handling
two containers of differing
two containers
of differing
size and spotting
containers
size
onto yard chassis
Productivity Potential
DHT40 is expected to be at least 50%
more productive than a single lift
crane.
Crane Type
Single-Lift
Dual-Hoist
FEU Potential
25 – 30
35 – 45
FEU – Forty-foot Equivalent Container
Moves per Hour; Single Cycle
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Productivity Challenge
1.
2.
3.
4.
Efficient Head Block Coupling
Operator’s controls
Operator training
Terminal infrastructure
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Design Considerations
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Fatigue Design Criteria – Single
Hoist
Lift Capacity 61 t
Fatigue Load 38 t
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Fatigue Design Criteria – DHT40
Lift Capacity
60 t – Landside
40 t – Seaside
Fatigue Load
38 t – 4 x 106 Cycles; Landside
or
50 t – 2 x106 Cycles; Total
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Fatigue Spectrum
Single Cycles
Waterside
Double Cycles
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Snag Load
Head block and empty
spreader traveling at
high speed striking the
cell guide
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Summary – DHT Cranes
Predominantly 80 t Capacity
Landside 60 t, Seaside 40 t
Premium Over Single Hoist
Weight
30%
Wheel Loads
30% – 40%
Potential Productivity Increase50%
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What is Next?
Triple 40
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Triple 40
100 t Total
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Triple 40
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Terminal Operations
Circa 1960
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Summary
Twin 40 Cranes are Here
Primarily Used for Trans-shipment Hubs
Twin 40 Content Average 20%
Increase over Single Hoist Crane
Weight – 30%
Wheel Loads – 35%
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Summary
DHT40 Crane Design still Evolving
Productivity Potential 50%
Operator Training
Infrastructure Planning
Is the DHT40 Crane For
You?
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Your Comments
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Acknowledgements
Engineering and Operations Personnel
Hutchison Port Holdings
Yantian Int’l Container Terminals
Modern Terminals Limited
Dachan Bay Container Terminals
ZPMC
McKay International Engineers
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Thank You
This presentation is
available for download
on our website:
www.liftech.net
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Liftech Consultants Inc. file data:
N:\Papers & Presentations\!Working\2007_AAPA_T40/AB tandem.ppt
Copyright 2007 by Liftech Consultants Inc. All rights reserved.
This material may not be duplicated without the written consent of Liftech Consultants Inc., except in the form
of excerpts or quotations for the purposes of review.
The information included in this presentation may not be altered, copied, or used for any other project without
written authorization from Liftech Consultants Inc. Anyone making use of the information assumes all liability
arising from such use.
Quality Assurance Review:
Author: Arun Bhimani
Editor: Teresa Ferguson
Principal: Arun Bhimani
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