BOTTOM FLOOR OF ABOVE-WATER PLATFORM OF MULTIHULLED VESSEL Russian patent published in 2001 - IPC

FIELD: shipbuilding; modification of bottom floors of above-water platforms of various multihulled vessels. SUBSTANCE: bottom floor has plating and beams strengthening it which are provided with webs and knees. Height of beams is no less than 0.2 of distance between plating and waterline. Beams are laid longitudinal under plating. Beams are provided with webs whose width is no less than 0.15 of distance between beams. Knees are located under plating and are connected with transverse bulkheads or deep frames. EFFECT: reduction of external impact loads; reduced mass and consumption of labor required for manufacture of bottom floor; enhanced reliability. 3 dwg