1. SECOND STAVE IN THIRD RING
2. FIRST DECK SECTION
3. TRUSSED RAFTER
Figure 8-38. Installing third ring staves
Section III. ASSEMBLY AND INSTALLATION OF TANK CENTER SUPPORT ASSEMBLY
8-15. Assembly of Umbrella-Type Deck Support
a. General. The umbrella-type deck support
(2) Insert splice bolts through ring halves and
splice plates in that order. Install and tighten nuts.
consists of two semi-circular rings. Each half ring is
(3) Reverse position of assembled ring so that
fitted on the inside with five gusset plates, two splice
flanged end is up.
plates, ten channel braces, and a gusset collar.
(4) Attach eight pieces of channel brace 12. fig.
8-39) to the ring (1).
(1) Set the ring halves on tank bottom, flanged
end down, with splice ends butted together.