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

 

Does STAAD.Pro Pushover analysis consider both moment and axial hinges ?

 

STAAD.Pro considers a structure as moment frame by default ( input parameter for that is FRAME 2 ). This implies all members are considered as frame members except those which are declared as truss member. For beam (horizontal member) moment hinge will form (deformation controlled). For column (vertical member) it can be either force-controlled (axial + bending) or deformation controlled (only bending) depending upon the values of axial forces formed in column as per FEMA 356 2000 guidelines.

 

If “FRAME 1” is chosen, STAADPro will consider axial hinges for the braces which are declared as truss members. Axial hinges will be considered for the beams and column members too.