Applies To
	Product(s):	STAAD.Pro
	Version(s):	22.07.00.160 and Up
	Environment:	ALL
	Area:	Analysis Solutions
	Subarea:	Direct Analysis
	Original Author:	Sye Chakraborty, Bentley Technical Support Group

 

I am getting the following warning message when opening my model which has Direct Analysis commands in it ? What does it mean ?

 

Starting from STAAD.Pro 22.07.00.160, the FYLD parameter has been taken out from the DIRECT ANALYSIS definition. This was done as it seemed like a redundant input because FY is already included as part of the material definition. As far as DIRECT ANALYSIS goes, the software would now be reading FLYD directly from the material definition itself. So just make sure that the FY is specified correctly within the material definition as shown next

In case no FY is defined as part of the material definition, a default value of 36 ksi (5184 Kip/ft2) will be used when carrying out the Direct Analysis.

A warning message like the one shown below has now been added to the analysis output file to make the user aware of this.   

 

Although not directly related to the topic, here is an important note regarding specifying FY and FU as part of the material definition. For the steel design, for some codes like AISC 360-16, the FYLD is read from the material definition, if no FYLD or FU is explicitly specified within the design parameters. However since that is not the case for all design codes, as a matter of good practice, it is recommended that you add the FYLD (and FU) parameters as part of the design parameter list, to correctly account for these during the design phase.