18
198823 R11
Note
Before commencing assembly of the form, one option is to lay polyethylene and compact the
second layer of gravel without the form in the way.
6. Rotate the forms so that the grain bin door will be centered on full length form sheet.
7. Thread one nut onto each arm of the form bracket so that one half inch of thread is protruding.
a. Insert the brackets into the forms as shown in
Figure 4 on page 18
and fasten the outside nuts.
b. Make sure the outside nut is flush with the end of the arm when tightened.
Figure 4.
Mounting the form brackets
Page 2
10M REBAR 200 MPa
(30 ksi) YIELD
4" FOOTING
GRAVEL
POLY
GRAVEL
SOIL
20" REBAR
CENTER PEG
2" MINIMUM
CONCRETE OVER
REBAR
13" DEEP
FOOTING
CONCRETE 2500 psi
(17 MPa) MINIMUM
SCREEDER
GRAIN BIN
WALL SHEET
FORM BRACKET
20"
RE-BAR
PEG
CONCRETE FORM
30°
B
A
COMPACTED
GRAVEL
POLYETHYLENE
SUBSURFACE SOIL
(BEARING CAPACITY:
2500 lbs?ft MIN)
5.
To assemble form, insert punches in the top and bottom vertical seam joint holes of sheets and pull them to one side so
that the finished form will be the smallest diameter. Install and tighten 3/8” x 1” bolts in all seams and remove punches.
Install and tighten bottom bolts. NOTE: Before commencing assembly of form, one option is to lay polyethylene and
compact the second layer of gravel without the form in the way.
6.
Rotate forms so that grain bin door will be centered on full length form sheet.
7.
Thread one nut onto each arm of form bracket so that one half
inch of thread is protruding. Insert brackets into forms as shown
in Figure 2 and fasten outside nuts. Outside nut should be flush
with end of arm when tightened.
8.
Position form so screeder can rotate freely around entire form.
Drive a 20” piece of 10M rebar through a bracket, level form and
tighten set screw (rebar should not extend more than ¼” above
bracket). Using the same method, level form at approximately
quarter points or third points around circumference. Repeat
procedure for remaining brackets.
9.
Once the form is levelled, pack gravel in any spaces under form.
Lay polyethylene over gravel base and under form. Place and
compact gravel on the poly as per Figure 3 and Table 4. Place
a ring of 10M rebar on top of bottom leg of brackets and wire tie
it to the corner of the bracket, as shown in Figure 3. Tie a
second ring under top arm of brackets, with joints staggered
from those of bottom ring. Lay floor rebar grid above top rebar ring as shown in Figure 3 and Figure 4 and tie into place.
Support grid at numerous intersections with small pieces of concrete, ensuring that there will be at least two inches of
poured concrete above grid.
3
8
"
NUTS
3
8
" X 1"
BOLT
TUBULAR
STEEL
FORM
BRACKET
20"
RE-BAR
PEG
8. Position the form so the screeder can rotate freely around the entire form.
a. Drive a 20” piece of 10M rebar through a bracket, level the form and tighten the set screw (rebar should
not extend more than ¼” above bracket).
b. Using the same method, level the form at approximately quarter points or third points around the
circumference.
c. Repeat the procedure for the remaining brackets.
9. Once the form is levelled, pack gravel in any spaces under the form.
a. Lay polyethylene over the gravel base and under the form.
b. Place and compact the gravel on the poly as per
Figure 5 on page 19
and
Table 3 on page 20
.
c. Place a ring of 10M rebar on top of the bottom leg of the brackets and wire tie it to the corner of the
bracket, as shown in
Figure 5 on page 19
.
d. Tie a second ring under the top arm of the brackets, with the joints staggered from those of the bottom
ring.
e. Lay floor rebar grid above the top rebar ring as shown in
Figure 5 on page 19
and
Figure 6 on page 20
and tie into place.
f. Support the grid at numerous intersections with small pieces of concrete, ensuring that there will be at
least two inches of poured concrete above the grid.
Note
On 14' models, the re-bar straddles centerlines of bin.
On 19' models, the re-bar crosses at the center point.
5. ASSEMBLY
SEALFORM CONCRETE FORM – GRAIN BIN
