09-01-2009, 09:10 AM
Hi,
The particular error may be due to the type of the model you are working with(Space/Plane). Suppose if you are working in a single plane and the model is Space, then this instability will be there.
And suppose if you are working in a Space model and there are certain horizontal forces applied, you need to see that the loads are transferred to the bases. If your base supports are say pinned then you may need bracings/moment connections, likewise...
I hope this might answer some of your problem if not all.
Regards,
# Upload your model/file if you are facing problem other than the above.
The particular error may be due to the type of the model you are working with(Space/Plane). Suppose if you are working in a single plane and the model is Space, then this instability will be there.
And suppose if you are working in a Space model and there are certain horizontal forces applied, you need to see that the loads are transferred to the bases. If your base supports are say pinned then you may need bracings/moment connections, likewise...
I hope this might answer some of your problem if not all.
Regards,
# Upload your model/file if you are facing problem other than the above.
"Be like a postage stamp. Stick to one thing until you get there."