Figure 7-25. - Column assembly.

Figure 7-26. - Method of holding column steel in plain in formwork.

Figure 7-27. - Steel in place in a footing.

Figure 7-28. - Steel in place on a wall form

Steel in place in a wall is shown in figure 7-28. The wood block is removed when the form has been filled up to the level of the block For high walls, ties in between the top and bottom should be used.

Steel is placed in footings very much as it is placed in floor slabs. Stones, rather than steel supports, may be used to support the steel at the proper distance above the subgrade. Steel mats in small footings are generally preassembled and placed after the forms have been set. A typical arrangement is shown in figure 7-27. Steel mats in large footings are constructed in place.