Grain Systems Tanks PNEG-1095 - Manual (Page 16)

16 PNEG-1095 FCDL 4.00" Corrugation Externally Stiffened Grain Bin
5. Foundations
Foundation Recommendations
These are general foundation recommendations. Site conditions, system requirements and other factors
may create foundation construction requirements not covered by this manual.
Selecting the Proper Site Location
1. The selected site should be level, firm and free from underlying debris. The soil bearing capacity
should be equal to or greater than required by the footing specifications.
2. The concrete foundation surface must be level. If fill is required, it should be watered and tamped
thoroughly to prevent uneven settling from the weight of the bin.
3. The site should allow easy access for easy loading and unloading, as well as provide additional space
for future units.
4. When selecting a bin site, also consider the positioning of handling equipment, availability of
electricity and the placement of fans, heaters and gas tanks.
Scribe the Diameter
1. Determine the center of the foundation site and drive a small 2 x 4 in the ground to mark it. Drive
stake into the ground so that it is the same height as the finished foundation will be.
2. Using one large spike, nail a straight 2 x 4 to the top of the center spike. This 2 x 4 should be
approximately two feet (2') longer than the radius of the bin. The swiveling 2 x 4 will act as a compass,
enabling you to scribe the correct diameter of the foundation and later locate the anchor and stiffener
bolt locations.
NOTE: Making the 2 x 4 two feet (2') longer than the radius, allow the 2 x 4 to also be used as a leveling
device and for pulling concrete.
Figure 5A Scribe the Diameter