Grain Systems PNEG-1276 - Manual (Page 15)

3. Foundation Requirements
PNEG-1276 Top Dry Autoflow Construction Manual 24', 30' and 36' 15
Frost Free Pad (Top Dry Bins)
NOTES:
1. Foundation site should be well drained and free of vegetation or debris.
2. Foundation design is based on a minimum soil bearing capacity of 3000 PSI. If soil bearing capacity
is in doubt, contact a local soil testing engineer.
3. Concrete shall have a minimum compressive strength of 3000 PSI at 28 days.
4. Requirements for reinforcement do not include overlap.
5. Lap all circumferential bars 35 bar diameters and stagger all laps in plan 3'-0".
6. All material used for backfill inside the ring wall should be clean, well graded, crushed stone of
sand-gravel mixture. Backfill should be placed at 6" lifts and well compacted.
7. The optional #4 rebar grid can be substituted for the wire mesh in most cases. Place the #4 bars in
the pad in an 18" x 18" grid.
Figure 3G
* Contact GSI Engineering for heights greater than 6".