SUPPORTS (DSLS-DSLD)
PLATE AND WALL SUPPORT
Ventilated Anchor Plate (APV)
Anchor Supports are designed to provide support to vertical sections
and provide fixed-point support for horizontal sections. See
Figure 47
NOTE:
Rings installed at 90° to plates.
Figure 47: - Ventilated Anchor Plate for Combustible material
The Plate Support must be attached to the building structure or supported
with rigid structural members. See
Table 6
for maximum supported
height.
For maximum support, the entire perimeter of the Plate Support must
be attached to structural framing. Structural members are supplied by
the installer. See
Figure 48a and 48b
Figure 48a: - Ventilated Anchor Plate on a Framework
Figure 48b: Detail of the Ventilated Anchor Plate on a Framework.
Supported duct sections in a vertical position must be braced with
diagonal members or gussets to prevent deflection of the supported joint
as shown in
Figure 49.
”X” is a minimum of 30°.
Plate Supports are usually located adjacent to fittings, such as tees or
elbows, to protect fitting from expansion stresses.
Table 17
shows Plate
Support, bracing and framework requirements for duct size ranges.
NOTE:
If bracing is used, minimum “X” angle is 30°. If there is no
bracing, the framework must be attached to structural members
to provide equivalent rigidity.
Figure 49: - Anchor Plate Horizontal Bracing
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