Applies To
	Product(s):	STAAD.Pro
	Version(s):	ALL
	Environment:	ALL
	Area:	Analysis
	Subarea:	Dynamic Analysis
	Original Author:	Sye Chakraborty, Bentley Technical Support Group

 

I am getting a warning in my analysis output as shown next

 

 *WARNING* CONTROL/DEPENDENT EQUATIONS ARE NOT PROPERLY CONSIDERED IN A TIME/STEADY SOLUTION.

 

What does that mean ?

 

This warning is reported whenever a model contains a time history or steady state analysis, and also utilizes control/dependent equations in some way, for example by including the Control/Dependent specification shown below:

 

 

Or, by including Floor Diaphragms:

Such instances can produce dynamic results that are incorrect, and typically result in the following being reported to warn to notify the user:

*** WARNING:
Partial Results for Eigenvalue Analysis Found

As such, whenever a model contains a time history or steady state analysis, any control/dependent or floor diaphragm commands must be deleted.