Shell expansion plan details ?

146
FOLLOW

Illustrate both the side and bottom plating as a continuous whole and shows the numbering of plates and lettering of plate strakes for reference purposes.
These plans are essential for describing the locations of damage to the ship’s shell and connections to the shell. This plan shows the boundaries of the shell plates and thickness of each plate in millimeters.Recent bulk carriers built to IACS common structural rules show net scantlings, on which strength calculations are based, as well as gross scantlings which include corrosion addition plus owner’s addition, when applicable. In other words a minimum and maximum is shown for each plate thickness.The frames, floors, girders, longitudnals, bilge keels and stringers which make contact with shell plates are also shown.The locations of other features such as sea chests and anchor pods are also shown.Frame numbering appears at the bottom and top of the plan, counting forward and aft, from zero at after perpendicular(at the rudder stock) The limits of each cargo hold are also shown at the top of the plan.Generally a convention is adopted for  naming or numbering the strakes of the platings, with A, B, C etc starboard or port from the midships(where the greatest number of strakes are found) and A being the keel plate