Applies To
	Product(s):	AutoPIPE,
	Version(s):	ALL
	Environment:	N/A
	Area:	Dynamic Analysis
	Original Author:	Bentley Technical Support Group

Problem:

What Analysis Step value should be used on the Time history tab of the Dynamic analysis dialog in AutoPIPE?

Solution:

Suggest using default setting "Automatic", thus letting AutoPIPE to solve the correct time step value needed for the analysis.

Some times the following appears when running an analysis:

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Warning
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W801-58: Smallest timestep for W1C01N .TIH file =.001392998 <.003152382 .
Consider a smaller user defined(non-automatic) analysis timestep.
This may indicate that modal cut-off frequency is not adequate.
---------------------------
OK
---------------------------

 See WIKI here for details on how to resolve this warning message.

See Also

Dynamic "Time History" Analysis

Bentley AutoPIPE