Method for fabricating a gravity-based structure (gbs) at a specialized fabrication site

1:

• A method for fabricating a gravity-based structure (GBS), comprising
• assembling a reinforcement cage for a rectangular base slab,
• installing base slab formwork and then concreting the base slab,
• assembling, as separate sections of the base slab are concreted, reinforcement cages for inner and outer walls and concreting the inner and outer walls by slipforming,
• assembling, as separate wall sections are concreted, a reinforcement cage for a top slab,
• installing a top slab formwork and then concreting the top slab, and
• post-tensioning with reinforcement strands the top slab and base slab, as well as inner and outer walls, wherein the GBS is fabricated including a central part and protruding part that have the common base slab, besides the inner and outer walls as well as the top slab are concreted for the central part of GBS, that takes form of a rectangular prism, as separate sections of the outer walls of the central part are concreted, a reinforcement cage is assembled, formwork is installed and concreting is performed for inner and outer walls of the GBS protruding part, the outer walls of which are made along the perimeter of the base slab, and at the same time the height of the outer walls of the protruding part is lower than the height of the outer walls of the central part, as separate wall sections of the protruding part are concreted, a reinforcement cage is assembled and formwork is installed for a top slab of the protruding part and then concreted, and the base and top slabs of the central part, as well as the inner and outer walls of the central part and protruding part are post-tensioned as the top slabs of the central part and protruding part are concreted and the concrete of the post-tensioned structures is cured.