(c) Bending-moment diagram
FIGURE 26
cause the required footing would project beyond the property limits. It then becomes nec-
essary to use a combined footing that supports the exterior column and the adjacent interi-
or column, the footing being so proportioned that the soil pressure is approximately uni-
form.
The footing dimensions are shown in Fig. 26a, and the reinforcement is seen in Fig.
- It is convenient to visualize the combined footing as being subjected to an upward
load transmitted by the underlying soil and reactions supplied by the columns. The mem-
(b) Shear diagram
Slope
(a) Plan of footing
