Grain Systems Tanks PNEG-2135 - Manual (Page 54)

9. 2.66" Commercial Tank Roof Instructions
54 PNEG-2135 Construction Manual for 2.66" Corrugation 135' Diameter Tank
Purlin Attachment to Roof Beams
(Refer to Figure 9H on Page 56 and Figure 9I on Page 57 detail B1-K1.)
Location B1
Attach two (2) purlin clips (CRP-6373) to each side of the beam at purlin location B1 using three (3)
1/2" x 1-1/2" bolt (S-3728) and nut (S-3729). Attach purlin (CRP-6370) to purlin clip (CRP-6373) using
four (4) 3/8" x 1-1/2" bolt (S-7928) and flange nut (S-9373).
Location C1
Attach four (4) purlin clips, two (2) CRP-6383 at the lower set of holes and two (2) CRP-6393 at the
upper set of holes using six (6) 5/8" x 2" bolts (S-4329) and nuts (S-4110). Attach purlin (CRP-6384) to
purlin clips (CRP-6383 and CRP-6393) using six (6) 3/4" x 2-3/4" bolts (S-8387), washers (S-866) and
nuts (S-234). NOTE: Upper purlin clip (CRP-6393) painted ochre. 3/4" x 2-3/4" Bolts (S-8387) must be
used for the C1 clip to purlin connection.
NOTE: Purlin (CRP-6384) is etched with “TOP”. Orientate “TOP” up.
Figure 9G C1 Purlin Orientation
Location D1
Attach two (2) purlin clips (CRP-6373) to each side of the beam at purlin location D1 using three (3)
1/2" x 1-1/2" bolt (S-3728) and nut (S-3729). Attach purlin (CRP-6374) to purlin clip (CRP-6373) using
four (4) 3/8" x 1-1/2" bolt (S-7928) and flange nut (S-9373).
Location E1
Attach two (2) purlin clips (CRP-6373) to each side of the beam at purlin location E1 using three (3)
1/2" x 1-1/2" bolt (S-3728) and nut (S-3729). Attach purlin (CRP-6453) to purlin clip (CRP-6373) using
four (4) 3/8" x 1-1/2" bolt (S-7928) and flange nut (S-9373).
Notice orientation of “Top” etching
in purlin.
Top