12- Place bricks around 4’-0” circle 13- Place bolts within circle
14- Lay concrete within brick circle
15- smoothen concrete surface
16- Remove row of bricks
Fabrication and erection of the skeletal framework
?Fabricate ten (10) curved metal frames out of 1 ½ “ wide x ¼ “ thick mild steel flat as per drawings.
The inside of the curve must be strengthened with ¼” x ¼ “ mild steel rib. The leg of each frame must
be provided with a hole of appropriate diameter in order to fix the frames to the fixed bolts in the base.
The top of each frame must be provided with a suitably sized metal bracket as shown in the drawings.
?Fabricate a metal ring of 3'-0” diameter to be fixed at the mouth of the tank to hold the vertical frames
together.
?Screw down nuts holding the frames at each upturned bolt and tighten them after ensuring that
distances between frames are equal.
?Use coir rope to tie the fabricated metal ring to brackets at the top of the vertical metal frames
?Use wooden poles or strong sticks as props in order to stabilize the metal framework as shown in
illustrations
?Cut several 12” lengths of binding wire for tying circular metal hoops (6 mm) to the vertical framework.
Tie the 6mm metal hoops around the metal frames using binding wire. The metal hoops must be placed
horizontally parallel to each other at approximately 6” centres. The ends of each hoop must overlap and
be tied with binding wire.
17- Fix the metal frames
18- Tighten nuts at frames
19- place ring at top of frames
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