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Setting up time-history analysis involves the following steps:

* Develop the model, including geometry and support conditions.
* Define (via "Define > Functions > Time History") a time-history function or functions that will describe the variation of loads in time.
* Assign loads (via "Assign > Joint Loads (or Frame Loads, etc.) to the model.
* Define the time-history load case via "Define > Load Cases". The time-history type can be either Modal or Direct Integration - please see {new-tab-link:http://www.csiberkeley.com/}CSI{new-tab-link} [_Analysis Reference Manual_|doc:CSI Analysis Reference Manual] for detailed explanation. To apply custom loads, make the following entries to the Load Applied section of the Load Case Data form:
** Load Type column: select option "Load Pattern
** Load Name column: select the desired load pattern name
** Function: select the time function that defines the desired variation of the load pattern in time

h1. See also

* [CSI Analysis Reference Manual|doc:CSI Analysis Reference Manual], chapters Linear Time-History Analysis and Nonlinear Time-History Analysis
* [Verification Examples|doc:Verification examples]
* [Example Problems|doc:Context Help]
* [Multi-support excitation|kb:Manual multi-support excitation]