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I am sending you the main file and source files used in the analysis. I think it will be hard to read, I can send you the tcl files, and the resulting graphs, if possible. Thank you very much for your kind interest. ------ MAIN FILE -------------------------------------------------------------------...

There are two integrators defined, the same as in the example. in the main part,( http://opensees.berkeley.edu/OpenSees/manuals/usermanual/1178.htm ) a load control integrator is defined. And in the cyclic loading part, ( http://opensees.berkeley.edu/OpenSees/manuals/usermanual/1180.htm ) the integr...

"system ProfileSPD constraints Plain integrator LoadControl 0 1 0 0 test NormDispIncr 1e-8 150 algorithm Newton numberer RCM analysis Static" above are the details of my solver system. Cyclic loading procedure takes the peak points of displacements as input and performs static analysis, (u...

Hello everyone... I am modeling a beam to column connection and defining the moment-rotation characteristics of beams, columns and connection using 2D rotational springs made of pinching4 material; 4 performance points. Loading is cyclic. the joint spring has 4 phases, pre-yield (increasing strength...

I understand. Thank you very much for your help and also for the fast reply.

Best regards...

thank you for the reply and the examples Vesna. I want to define using Hysteretic material, to be able to control the total rotation mechanism of the beams and columns. I assign the predefined Hysteretic material to hinge sections of Beamwithhinges element. Does this change the situation since if I ...

I studied the manual and want to ask a question, the relation to be defined in section is Moment-Curvature, not Moment-Rotation, isn't it? (I am trying to add Mz relation to my section)

Thank you vesna, i understand...

thank you felipe. i will go through it.

Hello, Is there anyway to define the moment-rotation relationship for beams and columns. I tried placing 2D rotational springs at the connection points of beams and columns with the joint and assigning the hysteretic material but the damage coefficients complicates the definition and the result is n...

Hello everyone, I am trying to find out the moment curvature results of a beam element after a cyclic analysis but the results file is a bit confusing. More clearly, when I set the recorder as "recorder Element -file ele3Rotat.txt -ele 3 plasticRotation", it works and gives a file with 3 c...

Vesna and Felipe, thank you for your help. In fact, I was in a kind of hurry and to be sure, I changed all my section definitions to "patch quad" after I read the first comment but anyway, it confirmed your last comments about the "patch rect" command.

does 'patch rect' command works in the code or is it omitted, since manual or any other help file do not mention about it ?

vesna wrote: > When defining a 3D section it is expected from a user to define a torsion > in the section. In case the user does not do it, Opensees assigns GJ/L to > torsional degree of freedom when creating stiffness matrix of an element. I understand. Thank you very much for your interest, it hel...

Hi everyone, When I run an analysis on a 3D model, I get a warning such as 'no torsion detected in sections, continuing with element torsional stiffness GJ/L". Anyhow, finishes the analysis with seemingly good results. Can anyone help me about the reason and/or meaning of the warning about tors...