by William Wijaya v1.3
Joints per bay, stack height, total joints and dead weight for each pipe type on each material barge. Pipe lies lengthwise in bays across the beam.
A voyage file holds the pipe properties, quantities, barge sizes and assumptions for one voyage. Save one file per voyage and load it back later. The page cannot open the print dialog, so use Save PDF report to print.
| Name | OD | Unit | Wall thickness (mm) | Corrosion coat (mm) | Concrete coat (mm) | Calculated weight (kg/m) | Override weight (kg/m) | Quantity (joints) |
|---|
Calculated weight is steel, corrosion coating and concrete in air, averaged over the joint after the cut-backs below. Type a value under Override to use your own weight, leave it blank to use the calculated one. Wall thickness and coating thicknesses are examples, replace with your own. Quantity is the number of joints to ship.
| Barge | Length (m) | Width (m) | Clear width for pipe (m) | Max DWT (t) | Bays of pipe |
|---|
Clear width is the deck width available for pipe, and sets the joints in the first layer. Each bay is one lot of pipe joints in line along the deck: 5 bays for the 250 ft barge, 6 for 280 to 330 ft. Lengths and widths are in metres; the barge name keeps the imperial size. Max DWT to load is the share of the DWT you allow on each barge, and it sets how many barges are needed. Clear widths shown are examples, replace with your own.
First layer joints = clear width ÷ loaded pipe diameter, rounded down. Each layer above has one fewer joint. Every bay holds the same pyramid, one 12.2 m joint long.
List the material barges to load, for example PHB#1, PHB#2, PHB#3, and pick a size for each. Pipe fills them in order.
| Barge | Size | Max DWT to load (%) | Max stack height (m) |
|---|
Top view, looking down on the deck
Cross-section of one bay, looking along the barge