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Figure 4-11
4.2.2.4 Raised Floor Earthquake Bracing
This section describes how to install earthquake bracing to a raised floor installation. Bracing
is required in earthquake zones 3 and 4 when installing a frame onto a raised floor with a
spacing of 1.5 feet or more between the raised floor and the subfloor.
Assemble the Earthquake Brace by securing the 45 degree bar steel pieces to the flat 90
1.
degree bar.
Use the Earthquake Brace Kit P/N 982-0065-R01.
Raised Floor Installation With Unistrut
warning:
Finger tighten nuts on threaded rods inside the frames above the raised floor
before tightening the nuts below the raised floor.
Chapter 4
Floor Preparation
4-13
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