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frank this is a the basic parameters I used for the analysis: ###### # Analysis-Sequence 1 # ###################################################### # Start of model generation # ==================================================== #Define Earthquake set Equake ardakull set igscale "0.1 0.2 0.3&...

hi I want to perform a couple of time history analysis using an earthquake with different ground motion factors . for time saving i wanted to do these analysis automatically after each other so at the first of the code I added this: >set igscale "0.1 0.2 0.3 0.4" >foreach gscale $igscale {...

thanks frank this helped but those this trial strain have anything to do with the number of regions defined by the fiber section?
can I fined out how many of these regions reach the ultimate strain?

My constraint handler is Penalty Method but the weird thing is that the horizontal nodes which are constrained have the same displacement values but the nodes which is vertically constrained to another node have a little difference in there displacement.

hi I wanted to determine the ultimate strength of a column so I used a Fatigue material with max strain of 0.014 wrapped around my core concrete, when the program puts"fatigueMaterial..excessive strain" does that mean the column core has reached the max strain?and when this message is show...

hi i want to apply a push over load in directions different than x y z like a 30degree load with respect to the x axis. do i have to factor that load in to two loads in directions of x y ( Fcos(30),Fsin(30) ) and apply it in the load pattern?or is there another way? I'm asking this because when usin...

Hi
I wanted to model a foundation with a rigid element so i used the rigidlink-beam element command but it seems that it doesn't transmit the forces at all!!is there another way to get a rigid element?i don't want to use an elastic element with big Elastic modulus because of convergence problems!

hi
i have a problem,when i perform a pushover analysis on a bridge with
fiber section columns and nonlinearBeamColumn elements and steel02,the
pushover curve keeps increasing even in high load
factors and it wont stop,what's the problem?
is it because of strain hardening and ultimate strain factors?!

hi payman
I have the same problem as you mentioned!as i increase the analysis steps the pushover curve just increases and it seems that it wont come down!! did you manage to fix it?
i tryed the steel02 material but it wont converge even in gravity analysis!

how should we model the spirals of a concrete column with a fiber section?!

yes i used a loop like the one you wrote which was on a pushover example file!

hi I have a problem while performing a pushover analysis on a bridge,I have changed the analysis options several times but still I come forward to convergence problems and the analysis fails!This problem occurs when I perform a pushover analysis after a previous gravity analysis but when i do it wit...

I changed my code with the loop but the result are again the same!! [code] # Analysis: eigenAnalysis # +++++++++++++++++++++++ # Define analysis options # ----------------------- source AnalysisOptn_5.tcl # Define recorder(s) # -------------------- set nModes 3 #Set up recorders for eigen vectors fo...

hi I want to get eigenvalues in each step of the analysis,but in the output file all of the eigenvalues in each step of the analysis are all the same.whats the problem? what should I do? [code] analysis Transient analyze 10 0.0001 [code] result: recorder is one node in one dof: 0.0001 4.75794e-006 0...

hi basir
i want to perform an adaptive modal push over analysis and i dot know how to do it opensees, do you have a matlab-opensees script for it that you could share?