CSA S16 Angle Effective area for class 4 sections

[gerhARD.BOTHMA]

The hand calculated value for class 4 section effective area is greater than Robot Effective area for AEP150x150x10:

Please advise how this is calculated.

[okapawal]

Hi @gerhARD.BOTHMA 

I've checked your calculations for fy=350 MPa.  They seem reasonable.

I will ask development team for checking how it is calculated.

[Romanich]

Hi @okapawal ,

Sorry for the off-topic, but is it possible to keep the class description in line with the CSA S16:19? For example. like in the picture above, it should be Class 4 instead of Slender.

[okapawal · Accepted solution]

@gerhARD.BOTHMA 

There is a difference in using limited slenderness for angles legs "bel/t".
According CAN/CSA S16:19 it should be used limit bel/t = 250/sqrt(Fy) while RSA uses more conservative values bel/t = 200/sqrt(Fy).

It has been registered for correction.