The OpenSees Community

Thanks for your reply. However, the problem is still unsolved. I am continuing to use NEEShub for my model because on my PC I have incomplete recorder files.
For example recorders for columns work perfect but for beams I have problem.

I have exactly the same problem. When I run my model in the NEEShub Opensees lab the model works perfect. However, on my laptop I saw a lot of empty output files and some of the expected output files even do not exist in the result folder. I used "wipe" and "remove recorders" at ...

Hi,
Is there any way to define the rotational components of ground motion without using the multi-support excitation feature?
I have difficulty to input the roll, pitch and yaw component of the shaking table into my Opensees model.

Yes, that was the problem. Thanks for your help.

The coordinates of the nodes are fine. However, it seems that 0.4 m is considered zero by Opensees. When I change the length unit from m to cm or mm everything works fine. My intention is to subdivide a 4m beam to 10 elements.

Hi, I have tried to model a single beam having a 4 m length with 9 equal length elements using the Corotational transformation. I got the following error and Interpreter windows was closed immediately. However, it works fine with 4 elements. Any suggestion? CorotCrdTransf3d computeEleLengthAndOrien:...

Hi,
Could you please let me know the reference for 3D corotational formulation implemented in OpenSees?
The chapter 6 of Bozorgnia's Handbook describes only 2D formulation. I do not have any idea how OpenSees deals which nodal rotations in a 3D space.
Mostafa Masoudi

the model converged by increasing number of iterations to undertake to satisfy element compatibility.
Is it a proper way to achieve convergence?

I changed several parameters in order to achieve convergence. However, I found the earthquake records should be scaled down to converge. The earthquake loading is bidirectional (El-centro motion 1940 downloaded from peer database) and the unit of my model is kN, m. Could you please help me on this i...

When I use rigidDiaphragm for my model, I received the following error message. Please advise me on this issue. "constraint matrix not identity, ignoring constraint for node ..." Here is my model: wipe; # clear memory of all past model definitions model BasicBuilder -ndm 3 -ndf 6; # Define...

When I use the 'timeSeries' command the following error appears:
Invalid command name "timeSeries"
I was not able to run this example: Ex1a.Canti2D.EQ.m.tcl

Hi,
What is forcebeamcolumn which it is used in openseesnavigator? I have not found this element in user guide.
Based on which version of OpenSees the OSN works?