Importance

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Abstract

A gravity-based structure (GBS) includes central and protruding parts having a common base slab. For the central part, outer and inner walls and a top slab are cast in concrete so that the GBS forms a rectangular prism. As casting of individual outer wall sections is completed, a reinforcement cage is assembled, formwork is installed, and protruding part outer and inner walls are cast, the outer walls being formed along the base slab perimeter with a height lower than the central part outer wall height. As separate protruding part wall sections are cast, a reinforcing cage is assembled, formwork is installed for a protruding part top slab, and then cast. Post-tensioning of central part base and top slabs and central and protruding part outer and inner walls is done as central and protruding part top slab casting is completed and the concrete is cured, increasing buoyancy and reducing submersion.

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First Claim