Double-airtight steel-reinforced lightweight concrete full-capacity LNG (Liquefied Natural Gas) storage tank

The utility model discloses a double-airtight steel rib lightweight concrete full-capacity LNG storage tank, and belongs to the technical field of pressure vessel equipment facilities. The double-airtight steel rib lightweight concrete full-capacity LNG storage tank comprises a storage tank bearing platform, a storage tank wall body is arranged on the storage tank bearing platform, a dome is arranged at the top of the storage tank wall body, and the storage tank bearing platform, the storage tank wall body and the dome form the closed LNG storage tank; the storage tank wall comprises a lightweight concrete layer so as to increase the height of segmented pouring, a profile steel framework is arranged in the lightweight concrete layer, and the bottom end of the profile steel framework is anchored to the storage tank bearing platform so as to improve the structural strength. The utility model has good anti-cracking performance, can cancel prestress and wall buttress structures, reduces construction procedures, i