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

258 Chapter Nine
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8'-0" 8'-0"
15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 15 1 / 4 " 2 1 / 4 "
2 1 / 4 " 2 1 / 4 "
Strongback 4'-0" C.C.
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Drill 13/16" holes
4" × 4" at
joint
2 1 / 4 "
12" 24" 12"
4'-0"
(c) Hight wall forming
FIGURE 9-24(C) Suggested forming details for high walls. (Source: Ellis
Construction Specialties, Ltd.)
The sequence of erection of this forming system is illustrated in
Figure 9-25. The first step is predrilling the stacked sheets of plywood
with holes to receive the snap ties.
After the holes have been drilled for form ties, a 2 × 4 plate is
attached to the concrete footing with concrete nails. The first vertical
sheet of plywood is erected and secured by using the quick-lock
bracket upside down on the bottom plate, or by tacking it to the 2 × 4
plate. The first sheet of plywood is braced with a diagonal length of
lumber.
Plywood panels are assembled for one side of a wall, the ties are
installed, and wood wales are attached and held in place with quicklock
brackets. After one side of the wall panels has been installed,
aligned, and plumbed, the loop end ties are slipped into the predrilled
panels. The quick-lock brackets are then attached on the quick-lock
ties to allow installation of the horizontal wood wales.
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