Sapata

Sapata is a term used in civil engineering and construction to denote a shallow foundation element that transfers loads from a structural member, such as a column or wall, to the supporting soil. In Portuguese-speaking contexts, sapata is synonymous with footing and typically consists of a reinforced concrete pad with a broader base to distribute the load.

Sapata types include isolated sapata (sapata isolada), strip or continuous sapata (sapata corrida), and combined sapata (sapata combinada), each designed to support one or more columns or walls. A sapata may be reinforced with steel bars arranged in a cage and anchored to the column base with bolts or embedded connections.

The dimensions are determined by soil bearing capacity, structural loads, and required safety margins; the depth depends on frost protection, soil conditions, and resistance to settlement and punching shear around columns. Construction and design rely on geotechnical investigations and local codes; improper design can cause differential settlement or bearing capacity failure.

In many regions, sapata is used interchangeably with footing or shallow foundation, and similar foundations may be described as pad footings or raft foundations (radier) when covering larger areas.