| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil tank structure which can suppress corrosion generated locally in an oil tank of a tanker having a double hull structure.SOLUTION: An oil tank of an oil tanker is formed by a bottom plate 11 and side plates and divided into a plurality of tanks by partition walls 30. The oil tank is equipped with a plurality of stiffeners 40 which extend in the horizontal direction and are vertically arranged on at least one of the inner surface of the side plate and the surface of the partition wall at intervals from each other. Each of the stiffeners 40 is equipped with a flat plate part and drain holes 42a formed so as to penetrate the flat plate part, and the drain holes 40 provided in each of the stiffeners 40 are arranged so as to overlap with another member in a plan view from above in the vertical direction. |
