Anchor bolt placement, Foundations – Grain Systems Tanks PNEG-1095 User Manual
Page 21
5. Foundations
PNEG-1095 FCDL 4.00" Corrugation Externally Stiffened Grain Bin
21
Anchor Bolt Placement
1. Having poured and leveled the concrete, use the center stake and straight 2 x 4 again to find the bolt
circle radius for the outside hold down brackets.
2. Select a starting point and stretch a pre-measured chord (“E” chord distance in
) along the
imaginary circle formed by the bolt circle radius. This will give you the bolt locations on the bolt
circle radius.
3. Take into consideration the placement of these bolts so as not to interfere with the positions of bin
doors and transitions. (Refer to the following anchor bolt chart on
for necessary radius and
chord lengths.) Take the time and work carefully since accuracy is important.
NOTE: The top edge of slab where the bin wall sets must be held to within 1/8" of level.
NOTE: The above anchor bolt radii and dimensions are for the FCDL series only. For NC commercial
tanks, refer to the NC commercial section of the foundation recommendations in PNEG-318.
Figure 5F Anchor Bolt Detail (Typical)
Figure 5G
Anchor Bolt Chart for FCDL Tank
Bin Diameter
“B” Bolt Circle
Radius
# of Anchors
“E” Chord Distance
12'
6' - 3-1/4''
8
4' - 9-5/8''
15'
7' - 9-1/8''
10
4' - 9-9/16''
18'
9' - 3-1/16''
12
4' - 9-1/2''
21'
10' - 8-15/16''
14
4' - 9-3/8''
24'
12' - 2-7/8''
16
4' - 9-5/16''
27'
13' - 8-3/4''
18
4' - 9-3/16''
30'
15' - 2-11/16''
20
4' - 9-3/16''
33'
16' - 8-9/16''
22
4' - 9-1/16''
36'
18' - 2-1/2''
24
4' - 9-1/16''
42'
21' - 2-5/16''
28
4' - 8-15/16''
48'
24' - 2-1/8''
32
4' - 8-7/8''
54'
27' - 1-15/16''
36
4' - 8-13/16''
60'
30' - 1-3/4''
40
4' - 8-3/4''