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Beam assembly – Anchor ANCHORSPAN AA 30FT-60FT User Manual

Page 13

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Beam Assembly:

Note: Beams are shipped from the factory with splices pre-installed in base columns and rafters. It
is intended that the horizontal bolts securing the splices be left in place. The ends with the splice
are the male ends, and in all “AA” spans the male ends point toward the apex of the structure.
Consult the Hardware Pattern on the previous (facing) page for correct hardware configuration. Bolt
Assembly “O” is used on all overhead joint locations except on the first beam to be raised. Bolt
Assembly “X” is used on overhead joint locations on the end beam that will be raised first and at the
eave purlin locations of cross-cabled bays. These take the place of the fixed end of the SpanLatch™
purlin to secure purlins at locations where they do not overlap.

At the eaves of any beam that will support a gabled end frame, add a wing eave bracket at the bolt
head at the underside of the beam (see locations on hardware chart where the “X” is enclosed within
a square).

Bolt Assembly “B” is used only to hold end uprights (at the non-joint locations) of any beam that will
be equipped with a gabled end frame. At those locations, pop out the hole plug installed at the fac-
tory and insert the Upright Bracket bolt assembly.

Briefly, the 40’, 50’ and 60’ spans with (2) cross-cabled bays will use (12) “X” Bolt Assemblies, and all
other joint bolt locations will be “O” Bolt Assemblies. The 30’ span has only (10) “X” Bolt Assemblies.

The rafter pattern shown above is for the 60’ span. ( See appendix page X-9 for correct rafter pat-
tern for 30’, 40’, and 50’, spans.) Begin assembling the first beam by pinning the female end of one
base column to a baseplate and proceeding toward the opposite side according to the numbered
order shown. The angled end of the baseplate pin goes to the outside of the structure. In assem-
bling a beam, do not start at both sides and work toward the middle.

The purlin bolt is installed with the head to the bottom (or inside) of the beam and the threads to
the upper (or outside). Be sure the purlin bolt at each joint has been installed before proceeding
to the next joint. At this time, leave the nut loose at the end of the bolt (for later purlin installation).
Continue installing female to male ends at each joint until the opposite side baseplate is reached.
Swing the beam wide of its baseplate (as shown) while the final base column/rafter joint is being
assembled. Then swing the beam back into place and pin the female end of the final base column
into it’s baseplate. Continue assembling beams until all are finished flat on the ground.

Internal splices pre-installed on male ends.
Not visible after installation.

Base
Column

Short
Rafter

Long
Rafter

Apex

At each joint, male ends point toward the apex.

Swing wide to assemble then reposition and pin
to baseplate

Pin to baseplate, using 9” bent arm pin (bent
arm to outside)

BEAM ASSEMBLY