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I'm using concrete02 material, and I've changed R0 to 5. But still the problem persist and my loop for IDA only works for one scale factor.

Still the same error, if i changed algorithm to Linear (means without iteration) then it gives results. But the problem is my loop for ground motion intensity scale factor doesn't work. program only runs for one Scale factor.

Thank you.
its concrete 2D frame with 4 bays and 3 storys.
I'll change and let you know.

Mohsenshani thanks for your response. below are my analysis parameters for transient analysis. constraints Transformation; numberer RCM; system UmfPack; test EnergyIncr 1.0e-3 400; integrator Newmark 0.5 0.25; algorithm KrylovNewton analysis Transient; ########While loop for convergence issue#######...

Hi, I am performing IDA analysis on a 2D frame joint is modeled using beam column joint element available in opensees manual. i'm getting the following message. WARNING: CTestEnergyIncr ::test<> - failed to converge after: 200 iteratipns AccelratedNewton::solveCurrentSteps<> -The convergenceTest obj...

Kindly suggest something...

Jeena here is my model.... #4 story model #Distributed plasticity model #Joint details wipe #units SI, kN, mm, MPa #Making file model basic -ndm 2 -ndf 3 source procMKPC.tcl puts "a" source proUniaxialPinching.tcl puts "b" set Strfactor 145; set Lenfactor [expr 1/25.4] set colY 3...

Hi Jeena, I am sorry which example?

Hello I'm doing eigen analysis of 2D, 4 story 3 bay building with beam column joint model which is already available in opensees manual. I've tried every solver for eigen -genBandArpack, -symmBandLapack, -fullGenPack, and time period i get first is very high value and second is infinity. please sugg...