ERECTION INSTRUCTIONS FOR
THE 1000-BARREL CAPACITY TANK
Section I. ASSEMBLY AND INSTALLATION OF TANK BOTTOM
6-1. Center Support Base
(2) Place strip gasket (5) around the bolt circle
a. General. The center support base consists of a
of the center support base. Where a break occurs in the
gasket, overlap the joint two boltholes. Make a cut
short, tubular, support column mounted on a circular,
squarely across the second bolt hole in the gasket. This
flat, steel plate. The column is held in position on the
will insure a smooth joint where the gasket overlaps.
steel plate by radially mounted and welded gussets.
(3) Insert five 1/2 by 1/2 inch bolts (6) in the 5-
Bottom plates of the tank are bolted to the center
bolt hole channel (7).
support base plate.
(1) Position center support base (1, fig. 6-1)
over the center grade stake.
To prevent damage to the gasket, do not use
a sharp-edged tool or pipe to force gasket
over bolts. Use a rounded, smooth-mouth
(4) Insert bolts (6) to channel assembly through
center support plate (3) and gasket (5).
(5) Place bolt retaining boards under center
support plate as the channel assemblies are installed.
Remove boards as bottom plates are installed.
6-2. Assembly of Bottom Plates
a. General. The tank bottom consists of twenty
tapered, flat, steel plates. All plates are plain and
interchangeable. They are bolted to the center column
base plate. When completely assembled, the bottom
plate pattern resembles a spoke wheel.
b. Layout of Plates. For convenience in installation,
each plate should be placed in its relative position
around the outside of the tank foundation.
1. CENTER SUPPORT BASE
c. Assembly First Bottom Plate. The first bottom
2. SUPPORT COLUMN
plate (1, fig. 6-2) has two bolt channels (2 and 4) placed
3. BASE PLATE
under each radial lap seam. Strip gasket is placed
4. STEEL GUSSETS
along each seam. Seams are identified as right and left,
5. STRIP GASKET
facing the large end.
7. FIVE-BOLTHOLE CHANNEL
Figure 6-1. Center support base with channels, bolts,
and gasket installed.