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No, no, no. It isn't a displacement increment test. I was just playing around with the model :wink: . However, the load was correctly applied. By this I mean that I could see how the model was moving step by step. In the real test (load control integrator) the load isn't applied the way I want to ye...

Just for "fun" I've tried a displacement controlled integrator and the load has been applied correctly in the number of steps I write, so the problem isn't the eleload command and nonlinearbeamcolumn elements. The only thing I found strange is that the time column in the recorder has negat...

Still the same... Any other ideas?
I have been racking my brains for a few days but I can't find what's wrong. Does the problem with the eleload command and the nonlinearbeamcolumn elements persist? Could this be the problem? If so, how can I mend it? Again, thanks a lot.

Not any more. I had convergence problems when the fiber section was smaller, but I changed it to a bigger one and now everything works correctly. It takes 5 iterations to reach the tolerance in the first step but all the others only take 1. I know the data output is correct since I have tested the m...

I have been looking through plenty of examples and I have compared them with my script. I just can't find what is wrong. The nodes, constraints, material, fiber section, elements and load pattern are correctly defined. The analysis parameters too (I've checked them again and again comparing them to ...

Could somebody tell me why in my model the load is applied in 1 single step? I write "analyze 10" to perform the analysis but in the 10 steps is written the same response in the recorders. Thank you. SCRIPT model basic -ndm 2 -ndf 3 # nodes node 1 0.0 0.0 node 2 0.0 400.0 node 3 300.0 550....

Thank you very much for your help. I finaly got the local and global coordinates. I knew what they where and the difference but I wasn't able to see it correctly in this case. Anyway, as you suggested I did a moment-curvature analysis of the fiber section after realizing it was not perfectly defined...

Yep, elements 2 and 3 are at an angle. But why should this change the output? Only because one is in local and the other one in global coordinates? Or because they are in slope? Which one is the "correct", print ele or recorder element? Now, please, take a look to the recorder output in li...

Thank you for your answer, but now I have some other problems... I will do the moment-curvature analysis later but, how would this help with my problem? I've already done the example for this, but I don't understand it that much. What I have done is the elastic section in a nonlinear beamcolumn elem...

Hello everybody. I need your help. I am doing this problem first with elasticBeamColumn elements and then with nonlinearBeamColumn. In the elastic case everything is right, but when I use the nonlinear elements something happens. First of all, the display recorder does something strange and doesn't ...