GSA structural analysis problem

hello everyone,

I m trying to make a structural analysis of a structure that I created in grasshopper. But, when I run it, the GSA gives an error as 'separate structures found in model'. I have checked what I defined wrongly, but I couldn't find what it is. Is there anyone who can help me??? I ve enclosed the file.

doubly%20ruled%20hypar.gh

thx,,

Attachments:

doubly ruled hypar.gh, 26 KB

Replies to This Discussion

Permalink Reply by Jon Mirtschin on October 11, 2012 at 5:20am

Gsa won't automatically detect intersections and split elements, so there's no connectivity with members at any points other than extreme corners.

I've provided a component in structdrawrhino that can help with this. Refer attached.

I assume the z restraint at every node is intentional?

Hope this helps,

Jon

Attachments:

doublyruledhypar.gh, 26 KB

Permalink Reply by Fery on October 11, 2012 at 7:41am

thanks Jon, but i couldn't open the file because of grasshopper IO error. do you know how to solve it????

Permalink Reply by Jon Mirtschin on October 11, 2012 at 9:14am

If I'm using a newer version of GH, might be the cause.

But simply add this component, make sure you flatten the curves input.

Permalink Reply by Fery on October 12, 2012 at 3:17am

I added that component and flatten the curves input as you said, but GSA does not open the file this time. you may see the attached file.

Attachments:

doublyruledhypar.gh, 23 KB

Permalink Reply by Jon Mirtschin on October 16, 2012 at 12:08pm

Hi Feray,

Sorry, I didn't see your reply. What is the error message you get now? I've opened your attached file and it works fine for me. I'm happy to assist further.

Pete, thanks for reminding me of how to achieve the same result using native GSA, I'd forgotten about that operation.

Cheers,

Jon

Permalink Reply by Peter Debney on October 16, 2012 at 10:49am

Once the model is in GSA you can select all the elements and run the Sculpt > 1D Element Operations > Connect 1D Elements... command.

If you still cannot get it down to one structure, open the graphical wizard (double click on the graphical window) you can select Highlight Edges, which will show you where structures stop and thus give you a clue where the problem remains

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