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I ran the effective site response analysis example with the OpenSeesSp.exe (http://opensees.berkeley.edu/wiki/index.php/Effective_Stress_Site_Response_Analysis_of_a_Layered_Soil_Column) and I get the following error. I think I have installed the “mpiexec.exe” correctly and I have change the solver t...

Dear hsafti, really thank you for your kind reply and your detailed help!! But I still have a problem. Because I need to appy the displacement in different floor level. For example, if we need to apply SP to two nodes, and each node has a different time series. So hwo to modified your above example?...

Dear Sir, I find that the analysis results of the 3D problem is a little different from the 2D problem, also the 3D problem is much difficulty to converge compare to the 2D problem, for the same model. For example, you can perform a push-over analysis of a cantilever column with the “beamwithhinges”...

Thank you very much for your kind reply. And would you please give a short example about how to define this pattern for the SP constrain. For example, if we need to apply the displacement-history in a three storey building. How can we define the load pattern for the floor displacement for the three ...

Dear Sir, I need to use the OpenSees to simulate the “Pseudo-dynamic Analyses”experiments, and I find that it is quite difficult, so I kindly ask if somebody have successfully doing this before and how? In the “Pseudo-dynamic Analyses”experiments, instead of using the shake table, the displacements ...

Dear Sir, I build 6 storey model in OpenSees with the beamwithhiges element. Totally there are 375 elements. Then I try to record the stress-strain relationship of all these elements, because I want to check in any step if there is a plastic hinge in a certain element. For each element I record the ...

Dear Sir, I use the example of a rotational spring that uses Bilin material in the OpenSees website: http://opensees.berkeley.edu/community/viewtopic.php?f=2&t=30954 But no matter how I change the parameter of Bilin material, I can not get any “pinching effect” as describe in the Author of this ...

Thank you very much for your help. In the new version of 2.2.2g there is no problem. Many thnaks!

vesna wrote: > I never tested Bilin material and I'm unable to respond to your question. > > Try contacting Laura Eads who created the example. She should be able to > resolve your problem. > > Are you using the latest version of OpenSees? This material did not work on > earlier versions of OpenSees...

Dear Sir, I try to run a cyclic analysis using the model from the example of the “2-Story Moment Frame” with concentrated plasticity. http://opensees.berkeley.edu/wiki/index.php/Pushover_Analysis_of_2-Story_Moment_Frame The plastic hinge uses the Bilin Material of Modified Ibarra-Krawinkler deterior...

Dear FMK, I analysis a 2D Frame with the beamwithhinges elements and the Fiber Sections. Because I need to see the development of plastic hinges, so I put some additional Fibers into the sections, with very small area, and in the locations of the steel layers. My ideas is to record the stress-strain...

Dear FMK, I download the code of the OpenSees2.2.2, and I build up the OpenSees.exe. I use this exe file to run an example of “Pushover Analysis of 2-Story Moment Frame”, but I have some convergence problem. But if I use the OpenSees.exe download directly from the web, there is no this convergence p...

I try to use the "Source Name.tcl", but the images still disappear in 0.1 second... Also an error occurs: couldn't read file "Name.tcl":No such file or directory.. I think you want to make an error to stop the disappering of the image.. But it just doesn't work... Another problem...

Dear Silvia I'm a user of BuildingTcl 1.9. :D I build a very simple 2D frame with only the “ ElasticBeamColumn” element.I found some problem when I was trying to run the analysis, whenever I clicked on the “Analysis” botton, an error message named "application error" poped up, reading: ---...

Thank you for your help. But the problem is these figures only stay in the screen for 0.1 second and shut down automaticly and disappear....so would you please teach me how to make these figeure stay in the screen ? I mean I have alreay used the command of : recorder display $windowTitle $xLoc $yLoc...