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