Autodesk Robot Structural Analysis

[#1]

Hi,

Could anyone explain me how this is happening?

Also, what does exactly mean this explanation taken from the help?..

"... optimization criterion is selected. If the sections of a profile in the current group belong to one family, there is no difference between the results obtained by means of the DESIGN option and those obtained with the DESIGN WITH OPTIMIZATION OPTIONS. Optimization functions as .."

[#2]

Take a look at sections order

C150x2 then 150x2.5 but then next in database is 170x1.25 which gives such ratio.

[#3]

yes, but then, shouldn't it have a red background??

what about the help explanation? could you please give me an example.

thanks

[#4 · Accepted solution]

Also, what does exactly mean this explanation taken from the help?..

"... optimization criterion is selected. If the sections of a profile in the current group belong to one family, there is no difference between the results obtained by means of the DESIGN option and those obtained with the DESIGN WITH OPTIMIZATION OPTIONS. Optimization functions as .."

---

See below : code group design without optimization and design with optimization without criterion and design with optimization with Weight criterion gives the same results. Weight criterion is used as a default if nothing selected.

[#5 · Accepted solution]

yes, but then, shouldn't it have a red background??

The idea is to show the best section ("OK"), the one previous (by name) not ok = "red", next (by name) with (usually) lower ratio ("green"). Display of red, green icon is assumed as decribed above, not related to real ratio that's why you can observe such effect.