A prefabricated frame structure model does not converge

Post Reply
dadadahe
Posts: 7
Joined: Thu Mar 02, 2023 2:11 am

A prefabricated frame structure model does not converge

Post by dadadahe » Mon Jun 05, 2023 3:59 pm

Dear STKO team,

I am performing a seismic time history analysis of a prefabricated frame structure.However, the model does not converge. I have been searching for a long time but haven't found the problem. If you could help me modify the model, I would greatly appreciate it.

I attach the model in case you need it. Thank you in advance for your support!

ValentinaSB
Posts: 61
Joined: Thu Dec 09, 2021 10:53 am

Re: A prefabricated frame structure model does not converge

Post by ValentinaSB » Mon Jun 12, 2023 8:55 am

Hi dadadahe,

You didn't apply physical and element properties to a part of your model.
Screenshot 2023-06-12 104515.jpg
Screenshot 2023-06-12 104515.jpg (108.76 KiB) Viewed 2302 times
Screenshot 2023-06-12 104548.jpg
Screenshot 2023-06-12 104548.jpg (91.25 KiB) Viewed 2302 times
Then you applied EDOF only to two interactions, this is the reason for non-convergence.
Screenshot 2023-06-12 104604.jpg
Screenshot 2023-06-12 104604.jpg (136.52 KiB) Viewed 2302 times
Now it runs but stops at some point. Try to analyze your post processor and see why.

Let us know if you have trouble.

Best,
Valentina
Attachments
6-1 -copy_corr.rar
(149.87 KiB) Downloaded 166 times

dadadahe
Posts: 7
Joined: Thu Mar 02, 2023 2:11 am

Re: A prefabricated frame structure model does not converge

Post by dadadahe » Mon Jun 12, 2023 12:33 pm

Dear Valentina,

After your modification, my model can run normally, but the license of my computer expired today, and then I tried to open this model on another computer, but I met the problem as shown in the picture, may I ask how to solve this error?

Thank you very much for your help and wish you happy every day.

Best,
dadadahe

ValentinaSB
Posts: 61
Joined: Thu Dec 09, 2021 10:53 am

Re: A prefabricated frame structure model does not converge

Post by ValentinaSB » Tue Jun 13, 2023 9:13 am

This error of using fibers is related to a limited version of STKO after license expiration. If on another computer you have an active license it should work fine.

Best,
Valentina

Post Reply