COLD STORAGE TANK ANCHOR

PROBLEM TO BE SOLVED: To eliminate the influence of stresses on an anchor and a secondary barrier at the time of an inner tank being damaged regarding an anchor for a cold storage tank for LNG, LPG, liquefied ethylene, or the like. SOLUTION: A cold storage tank has a secondary metal barrier 3 at the lower part of a lower part cold insulator 2 of an inner tank 1, and is composed of a cold resistance relaxing material 4, airtight material 5, its anchor 11, a side part cold insulator 9 and an outer tank 6 made of concrete. A foundation embedded metal member 10 is embedded in the outer tank 6, and the secondary barrier 3 and relaxing material 4 are provided with cutout parts. An upper flange 8a is provided at the upper part of a fitting 8 and fixed to the secondary barrier 3, and a lower flange 8b is fitted to the lower part of the fitting 8. Upward force of an inner tank anchor 7 is transmitted to the foundation embedded metal member 10 through the upper flange 8a, the fitting 8 and the lower flange 8b, and even with radial contraction of the secondary barrier 3, the inner tank anchor 7 and the embedded metal member 10 remain in the original positions without being restricted.