Grain Systems PNEG-1510 - Manual (Page 9)

PNEG-1510 Top Dry 24', 30' and 36' Manual Batch 9
3. Foundation Requirements
Foundation Requirements for Top Dry Bins (4.00" Top Dry
Bin Corrugation)
Requirements
The following foundation recommendations are a revision to earlier manuals distributed by the
GSI Group.
NOTE: There are changes in foundation dimensions from past publications. These dimensions are critical
to the proper installation and function of each foundation.
Selecting the Proper Site
The selected site should be level, firm and free from underlying debris. The bin can be installed
satisfactorily on slopes, but as the slope increases, additional labor and materials are required for the
foundation. The concrete foundation surface must be level. If some fill is required, it should be watered
and tamped thoroughly to prevent uneven settling from the weight of the bin. Naturally, the site must allow
convenient access for easy loading and unloading, plus provide additional space for future units. Also
consider the positioning of handling equipment, availability of electricity and the placement of fans, heaters
and gas tanks.
Scribe the Diameter
Having determined the center of the site, drive a small 2 x 4 in the ground to mark the center point of the
foundation. The top of the stake should be the same height as the finished foundation will be. Using one
large spike, nail a straight 2 x 4 (approximately 2' longer than the radius of the bin) to the top of the center
spike. 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 2' longer than
the radius allow the 2 x 4 to also be used as a leveling device and for pulling concrete.)
(See Figure 3A.)
Figure 3A