Formwork for Concrete Structures by R.L.Peurifoy and G.D- By EasyEngineering.net

370 Chapter Twelve
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FIGURE 12-8 Installation using Ceco Steeldomes. (Source: Ceco Concrete
Construction)
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Figure 12-8 illustrates a method of supporting the domes—a
plywood decking supported in a conventional manner providing a
drop-panel adjustment to a concrete column. The sizes and spans of
soffit boards and stringers should be determined by using the
method discussed in Chapter 11. The domes are removed by introducing
compressed air through a hole in each dome into the space
above the dome.
Ceco Fiberglassdomes
These domes are available for forming two-way concrete joist floor
systems. The two standard size widths available are 41- by 41-in.
sizes for use in a 4 ft design modules and 52- by 52-in. for use in 5-ft
design modules. Both sizes of modules are available in 14-, 16-, 20-,
and 24-in. depths.
Ceco Longdomes
These domes are made of one-piece reinforced fiberglass in total
width, including the flanges, equal to 36 in., and in lengths of 3, 5, 6,
and 7 ft. The available depths are 12, 14, 16, and 20 in. The domes are
used to form one-way joist concrete structures.
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