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I found the commands in OpeSees source code: damageModel ParkAng tag? deltaU? beat? FU? recorder ElementDamage eleID? <-time> <-file fileName?> <-section secID1? secID2? ...> <-dof dofID?> <-damage dmgID?> I followed the above commands and created a damage recorder. But, OpenSees.exe can't work. Tha...

Is there anybody answer my question?

I read the example: Infill Wall Model and Element Removal (http://opensees.berkeley.edu/wiki/index.php Infill_Wall_Model_and_Element_Removal#Implementation_of_Infill_Wall_Removal_in_OpenSees). Please take care of the following paragraph: A progressive collapse algorithm is developed [4-6], the diffe...

hellow everyone:
RemoveRecorder class developed by M.Talaat and S.Gunay is a recorder for element removal, but how can I use it during the analysis ?

I created a structure model with truss element. Right now I want to replace one of the truss element with a damper whose force-displacement relationship has been given. Is there any proper elements for the damper? Considering OpenSees doesn't has this kind of element, my idea is imposing the damper'...

Thank you very much!

I think I've gotten some misunderstanding or made some mistake, so I wasn't able to solve my problem. Would you like to give me a example and show me much more details about the loop.
Thank you very much!

bravejbc DUT

vesna wrote: > Do the analysis in the loop and inside of the loop define condition under > which you want to change your model. Under this condition define all > changes of your model that you want to see. Dear vesna， I've learned about that the analysis will stop either the analysis is finished or ...

Dear vesna, Thanks for your reply. Followed your advice, I modified the Basic_Truss_Example (http://opensees.berkeley.edu/wiki/index ... ss_Example), and did the analysis in the while loop as follows: # Remove existing model wipe # Create ModelBuilder (with two-dimensions and 2 DOF/node) model Basic...

Dear vesna, Thanks for your reply. Followed your advice, I modified the Basic_Truss_Example (http://opensees.berkeley.edu/wiki/index.php/Basic_Truss_Example), and did the analysis in the while loop as follows: # Remove existing model wipe # Create ModelBuilder (with two-dimensions and 2 DOF/node) mo...

Dear all,
How could I stop the analysis, modify the model and then restart the analysis? In other words how can I control analysis process of the program ?
Thanks!

bravejbc DUT

Dear Silvia, There are many posts mentioned how to spit mass,stiffness and damping Matrix out. At present neither mass or modal participation factors can not be recorded with OpenSees. Although We can go to the source code, find it and spit it out, it is very difficult for us. Would you please do so...

vesna wrote: > Neither mass or modal participation factors can not be recorded with > OpenSees. However if you know C++, you can go to the source code, find it > and spit it out. > >Dear vesna， I am reading the source code. Would you please give me much more details about finding and spitting out ma...