LNG Containment System and Method of Assembling LNG Containment System

A method for assembling an LNG full containment system, comprising the steps of:

• pouring a floor slab fabricated at least in part from concrete;
• erecting a plurality of vertical walls on the floor slab by adjoining a plurality of prefabricated wall panels in side-to-side fashion, with each of the prefabricated wall panels being formed from a combination of steel and concrete such that the prefabricated wall panel comprises a concrete plate and at least one steel beam attached to an outer surface of the concrete plate, but leaving an opening so that the plurality of vertical walls is not enclosed;
• constructing a roof structure that covers the plurality of vertical walls to provide a roof for a secondary container, the roof structure being assembled by adjoining a plurality of prefabricated roof panels in side-to-side fashion, with each of the prefabricated roof panels being fabricated from a steel truss structure, and at least one concrete plate above the steel truss structure;
• moving a substantially assembled primary container into the secondary container using the opening between the plurality of vertical walls as a means of access into the secondary container;
• and
• erecting at least one final vertical wall on the floor slab so as to form a polygon having at least four sides and so as to enclose the primary container within the secondary container.