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

462 Chapter Seventeen
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(a) Lifting a flying form table
(b) Landing a flying form table
(c) Flying form table in place
(d) Removing flying form table
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FIGURE 17-16 Operations for lifting and positioning a flying form table. (Source:
Patent Construction Systems)
The allowable working load capacity of trusses, individually or joined, is
2,000 lb per lin ft. Lightweight aluminum joists make up the basic platform
of the flying table. Each joist has a wide top flange with a standard
2 × 3 wood nailer that is flush with the top surface, as illustrated in
Figure 7-15(b). A range of joist lengths is available to fit a particular job.
Generally, a table can be stripped, flown, and reset in about 15 to
20 minutes, depending on the job conditions. Preassembled truss modules
are delivered to the job site. Flying tables are placed into position
and set to grade by adjustment of the extension legs and screw jacks.
Fillers are placed in the column strips to complete the deck form. The
concrete is poured, and once the slab has attained adequate strength,
the table is stripped and lowered onto rollout units. The table is slowly
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