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The document discusses various types of footings used in building foundations. It defines a footing as the lower part of a foundation constructed below ground level on solid ground. The main purposes of footings are to transfer structural loads to the soil over a large area to prevent soil and building movement, and to resist settlement and lateral loads. Common footing types include isolated, strap, strip/continuous, and combined footings. Key data needed for footing design includes soil bearing capacity, structural loads, and column dimensions. The document outlines general design procedures and considerations for spread, combined, strap, and brick footings.
