Hello!
I was trying to run the example posted by Dr. Laura Eads (Pushover Analysis of 2-Story Moment Frame). I am getting this error when I run it on OpenSees v.3.2.1 : ProfileSPDLinDirectSolver::solve() - aii < 0 (i, aii): (9, 0)
How can I remove this error? Do I need to use the older version of OpenSees for it to run without any error?
Thank you!
Problem with the "Pushover Analysis of 2-Story Moment Frame Example"
Moderators: silvia, selimgunay, Moderators
-
- Posts: 916
- Joined: Mon Sep 09, 2013 8:50 pm
- Location: University of California, Berkeley
Re: Problem with the "Pushover Analysis of 2-Story Moment Frame Example"
You can try a different linear system of equations solver and see if it works
Re: Problem with the "Pushover Analysis of 2-Story Moment Frame Example"
Thank you for your reply.
The error occurs in the Modal Analysis when using the "eigen" command.
Apparently, it is something related to the stiffness of the leaning column
The error disappeared when I changed the zero-stiffness elastic rotational spring of the leaning column to 10^-7 instead of 10^-9
The error occurs in the Modal Analysis when using the "eigen" command.
Apparently, it is something related to the stiffness of the leaning column
The error disappeared when I changed the zero-stiffness elastic rotational spring of the leaning column to 10^-7 instead of 10^-9
-
- Posts: 916
- Joined: Mon Sep 09, 2013 8:50 pm
- Location: University of California, Berkeley
Re: Problem with the "Pushover Analysis of 2-Story Moment Frame Example"
Okay, sounds good. Now I remember other people experienced this problem also and that was the solution