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

In a DIRECT ANALYSIS, are the beam deflections for serviceability checks computed using the unreduced E and I values?

By default STAAD uses the reduced E and I for carrying out the beam deflection checks. However in the section 5.37.5 of the Technical Reference Manual ( titled Direct Analysis ), you will find mention of a parameter named REDUCEDEI which can be set to a value of 0, for the full E and I to be considered for computing section displacements.