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[Time-history|kb:Time-history analysis] analysis may be initiated using the process which follows:

# Create the model and assign support conditions to restrained [joints|kb:Joint].
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# Select Define > Functions > Time History to define a time-history function which characterizes load variation over time.
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# Assign load conditions to the model through Assign > Joint Loads _or_ Frame Loads.
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# Define either a [modal|kb:Modal analysis] or direct-integration time-history [load case|kb:Load case] through Define > Load Cases.
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# To customize load application, enter, on the Load Case Data form under Load Applied, the following fields:
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#* *Load Type*. Select the Load Pattern option.
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#* *Load Name*. Select the Load Pattern to be applied.
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#* *Function*. Select the time function which characterizes load variation in time.


h1. See Also

* {new-tab-link:http://www.csiberkeley.com/}CSI{new-tab-link} [_Analysis Reference Manual_|doc:CSI Analysis Reference Manual] (Linear Time-History Analysis, page 353) _and_ (Nonlinear Time-History Analysis, page 403)

* [Verification Examples|doc:Verification examples]

* [Example Problems|doc:Context Help]

* [Multi-support excitation|kb:Manual multi-support excitation] article