3.6
Methods of Anchoring the Trestle Monorail
Trestle Monorail Ceiling Brace
Use this method when the Trestle Monorail will be installed on an intermediate
floor of a building with a rigid structural ceiling above. After the Trestle Monorail
is assembled and placed in the desired location, a jack is bolted to the top of the
inboard (rear) end of the Trestle Monorail. The jack is extended until it makes firm
contact with the ceiling. This locks the Trestle Monorail between the ceiling and
the floor and stabilizes the system.
Floor Tie-Down Clamps
For a more permanent application, anchor bolts are secured to the floor near the
base of the inboard (rear) end of the Trestle Monorail uprights. Either Beta Max
floor tie-down clamps, a heavy chain, or equivalent is used to connect the clamps
to the anchor bolts.
Ballast
A counterbalance (or ballast) system uses two rigid metal containers, each with a
capacity of 9.5 cubic feet, (269 liters) bolted to the inboard (rear) Trestle Monorail
leg. The weight of the material in the containers counterbalances the combined
weight of the work load and the hoist at the outboard end of the Trestle Monorail.
Ballast material must conform to certain requirements. Suggested materials to use
for ballast are: bricks, solid concrete blocks, stone, or other high-density nonflow
material. Liquids cannot be used and loose sand, in some installations, may not be
a suitable choice. Each container should be filled to the maximum capacity for
maximum stability.
Counterweight
This method uses flat, steel counterweights, common to roof outriggers,
s t a c k e d o n a n u p r i g h t 2 7 - i n c h ( 6 8 . 6 - c e n t i m e t e r ) p o s t . C l a m p s a n d
mounting hardware securely attach the upright to the inboard Trestle
Monorail legs. Standard 50-pound (22.7-kilogram) counterweights slide
down over the upright and counterbalance the system.
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3-19