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

Downloaded From : www.EasyEngineering.net
Forms for Footings 207
FIGURE 8-9 Concrete pressure on footing form.
FIGURE 8-10
Template for anchor bolts
ww.EasyEngineering.n
Additional strength can be obtained by using vertical strongbacks,
as illustrated in Figure 8-6. If strongbacks are used, form ties
should be installed between strongbacks on opposite sides of the
footing, as shown in the top view of this plan.
Forms for Stepped Footings
Figure 8-7 illustrates a set of forms for constructing a stepped footing.
The forms for the lower and upper sections are made in a conventional
manner, with the upper form supported in the proper location
on the lower form, using two pieces of 2 × 4 lumber attached to the
bottom of the upper form, with the 4-in. face vertical. Form ties should
be used if and where they are needed.
Downloaded From : www.EasyEngineering.net