UFC 3-220-01N
15 AUGUST 2005
Table 12-1 Mass Ratio, Damping Ratio, and Spring Constant for Rigid Circular
Footing on the Semi-Infinite Elastic Body
Figure 12-5 Equivalent Damping Ratio for Oscillation of Rigid Circular Footing on
Elastic Half-Space
12-1.3.2
Effects of Shape Foundation. The theoretical solutions described above
treated a rigid foundation with a circular contact surface bearing against the elastic half-
space. However, foundations are usually rectangular in plan. Rectangular footings may
12-6
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