Fp is not required to be taken as greater than:
CHAPTER 10
NONSTRUCTURAL SYSTEMS
FP = 1.6S DS I pW p
(10-2)
AND COMPONENTS
nor less than
10-1.
General.
FP = 0.3S DS I pW p
(10-3)
a.
Component Force Transfer. Components
shall be supported or braced such that the component
forces are transferred to the structure of the building.
where:
Component seismic attachment shall be bolted,
welded, or otherwise positively fastened without
FP = Seismic design force centered at the
consideration of frictional resistance produced by the
component' center of gravity and distributed
s
effects of gravity.
The design documents shall
relative to component' mass distribution.
s
include sufficient information relating to the
attachments
to
verify
compliance
with
the
ap = Component amplification factor that
requirements of this chapter.
For buildings in
varies from 1.0 to 2.50 (Select appropriate value
Seismic Design Categories D, E, and F, if the
from Table 10-1 or Table 10-2.
supported weight of the nonstructural systems and
components with flexible dynamic characteristics
exceeds 25 percent of the weight of the building, the
determined from Chapter 3.
building
shall
be
designed
considering
the
interaction effects between the building and the
Wp = Component operating weight.
supported items.
Rp =
Component response modification
b.
Seismic Forces.
Seismic design of
factor that varies from 1.0 to 5.0 (select appropriate
nonstructural components shall be in accordance
value from Table 10-1 or Table10-2.
with Chapter 6 of FEMA 302, and shall include the
following considerations:
Ip = Component importance factor that is
either 1.0 or 1.5 (See Paragraph 10-1d).
(1) Seismic forces (Fp) shall be determined in
accordance with:
z = Height in structure of highest point of
attachment of component. For items at or below
0.4a p S DSW p
z
grade, the base, z, shall be taken as 0.
1 + 2 (10-1)
FP =
R p /I p
h
10 1
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