The OpenSees Community

You are the best! Thanks again.

So damping is not included even for LocalForces, right?

Thanks Frank I am guessing that by "forces" you refer to the newer 2.2.0 commands and it corresponds to "globalforces". In that case, does "localforces" work in the same way? Finally, how about the older versions (pre 2.0.0)? I am postprocessing some results derived with such a version and some of t...

In the following post, there has been some discussion on this issue and it seems that the answer may be element-type-dependent. (opensees.berkeley.edu/community/viewtopic.php?t=16477) So, if possible (Frank?) could you tell me what is included by an ElementRecorder for a force-based beam-column elem...

It seems that the -INFO command line argument has been abandoned in the newer versions of OpenSEES. Has it been replaced by another mechanism, or are there any ideas to bring it back? It was mighty useful.

Many thanks!

Does anybody know what are the columns in the output of an element Plasticrotation recorder for 3D nonlinear beam-columns?

There are 7 columns, the only obvious one being the first (time).

Cathy: Sorry for taking so long to answer, I just saw the message! In general, in the older versions of opensees, including the -load or -time command will also place in the output the load that corresponds to the element in question. In my case this was an axial load for the uniaxial material. Depe...

oops, correction:

>> ! opensees inputfile.tcl

simply go to the directory where opensees and inputfile.tcl reside and then run opensees as a system command from Matlab:

For example, within Matlab, if your files are in c:\opensees,

>> cd c:\opensees
>> opensees inputfile.tcl

I hope this helps.

I am not sure if this is a bug or not but it seems that upgrading from Opensees 1.6.1 to 1.7.1 and above totally destroys any script that uses the Joint element. What happens is that the script produces a straight black screen once an "analyze" command is issued and enters what seems to be an endles...

There are more issues when modeling fiber beams with a rigid diaphragm. The problem is that there actually exists an axial DOF for the fiber beam. If you completely constrain this axial DOF then you get immediately large prestressing forces that can increase your strength for the fiber sections. If ...

Thanks Nero, that is exactly what I mean. In this way you can send a script to your collegues and they will immediately receive the proper error (incorrect version of openSEES) rather than a cryptic error about a material model not being present.

It may prove useful to have a function available in the Tcl interface that would report what version of openSEES is currently running. It will probably help to ensure that any structural model is running on an up-to-date version of OpenSEES, at least as up-to-date as it needs! This should be incredi...

Silvia, this is not my script, I just got if from the openSEES manual entry for the pinching4 uniaxialmaterial model. I modified it to show how it can fail in Displacement Control analysis. Note that this is an obvious overkill. I could have just use a single Displacement Control pushover in one dir...