Applies To
	Product(s):	STAAD.Pro
	Version(s):	All
	Environment:	N/A
	Area:	Postprocessing workflow
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

I have modeled a T beam using quad plates. I am trying to find out the bending stress in the flange. How can I get that?

STAAD.Pro reports the bending moments for plates and not bending stresses. However one can find the bending stress without much effort from the data available. First one has to pick a plate close to where the stress is required. Mx (or My ) moments are reported as part of the Plate Center Stress table within the Plate page in the Postprocessing mode. The moment is reported per unit width. One may calculate the Section modulus S ( = 1/6x w x t2 , where w = width of flange plate over which moment is reported, t = thickness of flange plate ). The bending stress would then be M/S.

Alternately STAAD.Pro does report the combined stress for plates. This is available within the Combined Stress tab inside the Plate Center stress table. For the selected plate, note the Top combined stress ( Comb Sx or Comb Sy as appropriate ). The combined stress is the P/A + M/S value. From within the Shear Membrane and Bending tab of the same table, note the SX or the SY which would be the P/A component. One can then find the M/S component by taking out the P/A part from the combined stress.