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An athwartship horizontal structural member supporting a flat or deck



Related Terms

TRANSOM BEAM

The aftermost transverse deck beam

MOLDED_DEPTH

The vertical distance from the molded baseline to the top of the freeboard deck beam at side, measured at midlength of the ship

TRIPPING BRACKET

Flat bars or plates fitted at various points on deck girders, stiffeners, or beams as reinforcements to prevent their free flanges from tripping

MAIN BEAM

The main longitudinal deck beam on a ship..

GIRTH

The distance measured on any frame line, from the intersection of the upper deck beam end around the body of the vessel to the corresponding point on the opposite side. The half girth is from the keel centre line to upper deck beam end.

BASELINE

A fore-and-aft reference line at the upper surface of the flat plate keel at the centerline for flush shell plated vessels. Vertical dimensions are measured from a horizontal plane through the baseline, often called the molded baseline.

WEB

Multiple component vertical sections forming a reinforced beam or multiple athwartship sections forming a reinforced frame.

CROSSBEAM

  1. Also known as trave. 2. A horizontal beam. 3. A beam that runs transversely to the center line of a structure.

CONTINUOUS BEAM

  1. A beam resting upon several supports, which may be in the same horizontal plane. 2. A beam having several spans in one straight line; generally has at least three supports.

FLIGHT DECK

The flat deck used for the launch and recovery of aircraft.

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