BALLAST STRUCTURE OF COMMON VESSEL HULL AND MILITARY VESSEL HULL, STEEL PLATE FOR DIFFERENT THICKNESS HOLLOW STRUCTURE OF SINGLE ITEM, STRUCTURE OF COMMON VESSEL HULL AND MILITARY VESSEL HULL CONSTITUTING MILITARY VESSEL HULL OUTER SKIN USING STEEL PLATE, STRUCTURE OF MULTILAYER STEEL SKELETON BUILDING USING STEEL PIPE FOR JOINTLESS INNER FACE MULTI-SPLIT UNEVEN WALL THICKNESS STRUCTURE OF SINGLE ITEM

摘要

PROBLEM TO BE SOLVED: To utilize a new material for the outer skin of a marine vessel hull and that of a military vessel hull as well as for the structure of an under water urban architecture and building and that of a shelter.SOLUTION: A steel plate for a hollow structure of a single item, which has a plurality of hollow parts penetrating the inner full length of a thick steel plate for a structure by utilizing a steel plate for a hollow structure of a single item of a new industrial material and a steel pipe for jointless inner face multi-split unevenness wall thickness structure of a single item, constitutes a partial or the whole common vessel hull outer skin and military vessel outer skin of a different thickness hollow structure steel plate of a single item having different thicknesses on the front side and the rear side.SELECTED DRAWING: Figure 1