JP2016037214A5 - - Google Patents

Claims (9)

An offshore floating structure that can move to the installation sea area and is moored and fixed in the installation sea area.
The central part in the longitudinal direction has a rectangular parallelepiped shape, the upper part of the rear part provided continuously to the central part has a rectangular shape having a width equivalent to the upper part of the central part, is lower portion to coloration a streamlined that narrowed toward the rear of the waterline at the time of the movement,
The outer surface of the rear portion has an upper region connected to a side wall extending vertically downward from an edge of the upper deck, a lower region connected to the bottom, and an intermediate region formed between the upper region and the lower region. An offshore floating structure characterized in that the inclination angle of the intermediate region is smaller than that of the upper region and the lower region . The offshore floating structure according to claim 1 , wherein the intermediate region is constituted by a ruled surface. The offshore structure according to claim 2 , wherein the intermediate region is configured by a developable surface at a portion close to a rear end portion and a twisted surface at a portion close to the center portion. The offshore floating structure according to claim 1 , further comprising an inclined surface having an inclination angle that decreases as the upper region approaches the rear end. The offshore floating structure according to claim 4 , wherein the upper region is constituted by a ruled surface. The offshore floating structure according to claim 1 , wherein the lower region is composed of a ruled surface except for a bilge portion.   2. The offshore floating structure according to claim 1, wherein a length of the central portion is 50 to 70% of a total length of the offshore floating structure.   The outer surface of the front part provided continuously in the central part is connected to the edge of the upper deck, and an upper area that inclines so as to form an acute angle with respect to the upper deck, and vertically downward from the upper area. 2. The offshore floating structure according to claim 1, further comprising a lower area extending, and the lower area is formed by a developable surface except for a bilge portion. The central portion, the front portion provided continuously to the central portion, and the width of the rear portion are in a range of 49 to 63 m, the length of the front portion is 90 to 110% of the width, and the rear portion The offshore floating structure according to any one of claims 1 to 8 , wherein the length of the portion is 120 to 140% of the width.