This page contains frequently asked questions related to time history analysis.
On this page:
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What value of scale factor should be used for the definition of the time history load case?
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Response: The reactions include the effects of only elastic (or inelastic) forces unless links are connected at the joints in which case the damping forces from links are also included in computing the joint reactions.
What value should I set for output step-size for time history analysis? What step-size should be set for input acceleration record? And what step size should be set for input displacement record?
The output time-step size should be small enough to provide sufficient resolution for the analysis. You can check this by decreasing the time-step size until the step size is small enough that results are not longer affected by it.