SUPPORT STRUCTURE OF LIQUEFIED GAS TANK

PROBLEM TO BE SOLVED: To make the external peripheral face of a heat insulating liner at a tank side and the internal face of a saddle top face material maintain butting states (or approaching states) over the whole length even if a tank outside diameter (and an outside diameter of the heat insulating liner) is reduced due to a change of a temperature.SOLUTION: The heat insulating liner 2 formed by arranging each divided liner material 21 which is divided into a plurality of pieces in the circumferential direction of a tank flank is arranged at the external peripheral face of the tank flank 11, on the other hand, at a saddle top face material 30, each divided receiving material 31 is arranged in a position corresponding to each divided liner material 21 at the tank side, the tip face of each divided liner material 21 at the tank side and the receiving face of each divided receiving material 31 at a saddle side are made to butt each other by inclined faces 22, 32 which are inclined to the side of a direction in which each divided liner material 21 at the tank side is displaced when the tank outside diameter is reduced in a state that a tank is placed on a saddle. Thus, even if the tank outside diameter is reduced, each divided liner material 21 and the inclined faces 22, 32 of each divided receiving material 31 can maintain the butting states (or the approaching states).