The OpenSees Community

wuhaoshrek,

Since I am not an OpenSees developer, this feature should be taken as a concept. However, as Frank explains above, a workaround with eleResponse command may solve the problem.

Dear Frank McKenna and OpenSees Developers, First of all, thank you very much for providing us with this amazing interpreter for studying the dynamic response of structures under the action of earthquakes and other dynamic loads! The following is just a remainder :) This request has been asked sever...

Dear Frank/Vesna,

What does mean xL in here:
http://opensees.berkeley.edu/wiki/index ... ad_Command

And would you please add its definition to the documentation for future references.

Thank you!

Dear Frank McKenna, Thank you very much to stay tuned in this subject. Should I assume you are working in the implementation of this feature currently? As of your request, there is not such a link. The example I propose here for this feature is explained above (first post). The another example that ...

Dear Vesna,

I would like to know if the quadratic eigenvalue problem can be solved in OpenSees? If so, what command should be used?

Thank you.

Dear Vesna, When you say that curved cable can be modeled using several truss elements, this means the beam must be modeled with a bundle of shell-elements (ShellMITC4 perhaps?) or aproximating the beam with a strut-and-tie model? If neither is the case, how can we connect these truss elements (curv...

Sorry, I misunderstood you. Yes, you are right. The base shear of the bridge is computed as the summation of all transverse reactions recorded _at every time step_ throughout the simulation. This is the same no matter if you are performing a pushover analysis or a seismic simulation. I thought you w...

Would you tell me what kind of information derived from your dynamic analysis are you inputting in the analysis of pushover (I presume you are performing a static-pushover analysis). In other words, are you performing a seismic simulation with a representative set of earthquakes to get an intermedia...

As far I know, the base shear coefficient is computed just as described… dividing the base shear of the structure with its weight. However, according to your post, it sounds like you are dividing the maximum base shear (calculated by means of a static-pushover analysis) with the weight of the bridge...

Hi Frank. Thank you very much for this new release. It is greatly appreciated. I was wondering if by this: "API_Dummy code added for C++ developers wishing to write their own main that does not use Tcl." you mean that developers are now ready to port OpenSees in other languages, such as Ruby/Matlab/...

Hi Vesna. In OpenSees, the curvature is calculated with respect to the neutral axis, and the moment with respect to the centroidal axis, isn't it? Thank you very much.

No, it does not work for me. It looks like there is a bug for the mac platform. Can I ask you one more thing? Could you run this script, please? The difference with yours is that at the end I define again the timeSeries I just deleted: -------------------------------------------------------- timeSer...

Hi Vesna. I downloaded again OpenSees version 2.3.0 (for the mac platform; at the moment I do not have access to a windows machine to test my script) from the download page and ran again the simulation. However, as before I am getting the same error. Please, would you send me via e-mail the model yo...

Vesna, thank you very much for the reply. Maybe such command was added on a later time. I looked at the source code again and found this in commands.cpp: ------------------------------ int removeObject(ClientData clientData, Tcl_Interp *interp, int argc, TCL_Char **argv) { // make sure at least one ...

Hi Frank. I wonder if in the new version of OpenSees (2.3.0) is possible to remove timeSeries objects. Taking a look at the source code, this feature seems to have added within this release but I think is not working. Thanks.