OSHPD Seismic Anchoring/Mounting
For seismic stability of the unit, additional anchoring and
mounting procedures are required . The anchoring options and
corresponding spectral response acceleration are given in
Table 6
. Holes in the Vision/Skyline base frame are to be field
drilled. Any mounting hardware is to be field supplied.
Table 6: OSHPD Mounting
Attachment Method
SDS
Attachment System (by Others)
Spacing
System
Bolted attachment to
steel (
Figure 39
)
1 .93
48
5/8" DIA SAE Grade 5
Welded attachment
to steel (
Figure 40
)
1 .84
48
3/16" Weld Leg and
4" welded length
Bolted attachment to
Concrete (
Figure 41
)
1 .68
24
Hilti HAD-P M16 × 190/40
with 4-3/4" embedment
Figure 39: Unit with Base Frame Mounted on Steel
Figure 40: Unit with Base Frame Welded
Figure 41: Unit with Base Frame Mounted on Concrete
IM 672-11 • VISION AIR HANDLING UNIT 26
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