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3-5. ARCH INSTALLATION
Keeping all joints completely slip-fitted together, stand an assembled
arch and set an arch end on an arch stub (Figure 3-9).
Holding the arch firmly, spring the other arch end onto the
corresponding arch stub. Repeat procedure for remaining arches.
Wear personal protective equipment (PPE) as
required by the site safety coordinator while lifting
arches and installing purlins and other frame
components overhead.
When using a ladder, one installer should hold the
ladder steady while the other installer climbs.
Beware of spring tension on frame members.
WARNING
WARNING
Use caution while standing arches. Follow all safety
requirements during this procedure.
Fully insert all arch sections into arch stubs before
proceeding to purlin installation.
CAUTION
CAUTION
Install purlins during arch installation. Refer to section
3-6. Purlin Installation.
NOTE
NOTE
Figure 3-9. Arch Installation
ARCH
ARCH
STUB
ARCH
ARCH
STUB