STAVE JOINT CHANNEL
OPEN BOLT HOLE
Figure 8-23. Assembling gaskets, channels, and bolts.
(2) Insert ½-by-1 ¼ inch bolts (3) through stave
joint channels (1), stave (5) and gasket (2) in that order.
Omit one bolt in each row, about 8 inches from the
bottom of the stave and other bolts at about 2-foot
intervals, so that drift pins can be inserted to aline
staves with one another before bolting them together.
d. Preparing Outer Edge of Tank Bottom. Since
channels are not used with bolts inserted through the
chime (outer edge) of the bottom, it must be raised to
provide clearance to insert and tighten the bolts
following installation of the first ring staves.
(1) Raise the chime and block it with short lengths
of 3-by 3-or-4- by 4-inch lumber (1, fig. 8-24) under
each bottom section. about 6 inches in from the outer
Figure 8-24. Raising and preparing outer edge of tank bottom