place, and remind crew members to keep their feet from
under the ends of the arches. You must never attempt
to lift sets of panels in winds exceeding 20 mph.
Place the first set of panels on the attaching angle
of the foundation and position them so there will be
room for the end-wall panels. After the first set of
panels are positioned, clamp them to the angle, plumb
with guide ropes, and secure the ropes to previously
anchored stakes. Detach the spreader bar and continue
to place the panel sets. Seam each set to the standing
panels before detaching the spreader bar.
After about 15 panels (three sets) are in place,
measure the building length at both ends (just above
forms) and at the center of the arch. This measure-
ment will seldom be exactly 1 foot per panel (usually
slightly more), but should be equal for each panel.
Adjust the ends to equal the center measure. Panels are
flexible enough to adjust slightly. Check these
measurements periodically during building
construction. Since exact building lengths are difficult
to predict, the end wall attaching angle on the finishing
end of the building should not be put in place until all
panels are set.
After the arches are in place, set the longest
end-wall panel in the form, then plumb and clamp it in
place. Work from the longest panel outward and be
careful to maintain plumb.
When all the building panels are welded to the
attaching angle (fig. 9-16) at 12 inches on center, you
are ready to place the concrete. When the concrete is
placed, remember it is extremely important that it is
well-vibrated. This helps eliminate voids under all
embedded items. As the concrete begins to set, slope
the top exterior portion of the concrete cap about
Figure 9-16.Building foundation concept.