Robot SA 2023 - Unistrut Parameters

[ldehora]

Hi, 

I am using Robot 2023 and I am coming across the below issue when using Unistrut. I did not have this issue in previous versions of the software. 

Can someone please advise?

[okapawal]

This is an enhancement implemented in RSA version 2023.

We have added verification for user-defined sections without required data e.g. flange thickness, webs.

You have to add these parameters to your section definition, otherwise the design code might give incorrect results.

[matthewobrn]

Hi Waldemar,

This section is a cold formed channel. (Unistrut) It does not have a web or flange.

Can you please advise on how to add this parameter for a profile such as this?

Thanks

Matthew

[okapawal]

Hi Matthew,

In order to perform steel design you need to save the section with a corresponding section shape type and set the geometry values.

[matthewobrn]

Hi Waldemar,

Thanks for the quick response.

We have many profiles in various configurations such as the P1001A:

Is it possible to run analysis on such a profile?

As this Section Type is not specifically listed.

Or does this just define how it runs the verification on the custom profile?

I assume this means we will need to re-add all the profiles using this method?

This is more restrictive to the sections we have added to the database as the name is limited to 4 characters and uses Dimensions 1-3 in the profile name in our database. Can you please confirm this is now the case?

Thanks

Matthew

[okapawal]

For this kind of section you can use C-shape 

Then the calculations will go as for the C-type profile without taking into account the middle part of the cross-section in the section class determination procedure. The class will be marked imperfectly - a slender web with the height of almost the entire cross-section and the shelves treated as supports - but certainly conservatively. There is likely to be a large reduction in the active field in compression and bending resulting in a conservative reduction of the load capacity.
Stretched, but will allow you to estimate the load capacity.

I'm afraid you need to re-add sections to the user database with these additional data.

[golbertg]

Hi

Where is the Unistrut library in Robot Structural? What´s the library name?

Thank you!

[jgallen56LWU]

Was this ever identified?  Looking at the same issue - need the library for Robot SA specifically

[Neil.Maddy8ZLZ6]

Hi @matthewobrn, 

Is there any chance you could send me a copy of this file for this particular unistrut? I would greatly appreciate it. 

Kind regards, 

Neil