Translations:AY Honors/Masonry/Answer Key/103/en

Figure 25: Typical footing form.

Figure 26: Methods of bracing bearing wall footing forms and placing a keyway.

A footing is a concrete structure upon which a wall is built. Figure 25 shows a typical footing formwork for a bearing wall, and figure 26 shows bracing methods for a bearing footing. A bearing wall, also called a load-bearing wall, is an exterior wall that serves as an enclosure and also transmits structural loads to the foundation. The form sides are 2-inch lumber whose width equals the footing depth. Stakes hold the sides in place while spreaders maintain the correct distance between them. The short braces at each stake hold the form in line. A keyway is made in the wet concrete by placing a 2-by-2-inch board along the center of the wall footing form. After the concrete is dry, the board is removed. This leaves an indentation, or key, in the concrete. When you pour the foundation wall, the key provides a tie between the footing and wall.