ABSTRACT
There are variations in the structural details from those described above. For example, in some applications, the roofs are flat instead of domes and are supported on columns (Figure 3). The concrete is thicker for these structures. There are
containments of smaller storage capacities (e.g., 300,000 to 50,000 gallons). Some of the inner containments are free-standing in that they are separated from, and not anchored to, the concrete roof. Some enclosing structures are octagonal rather than cylindrical, and are made of precast slabs. Some containments that store granular calcined wastes are long cylinders clustered together and enclosed by concrete walls.
