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Dear vesna,Thank you very much.I do a pushover analysis with changed elastic modulus for every one time step, the code is as follows: wipe; model BasicBuilder -ndm 2 -ndf 3; set dataDir Data; file mkdir $dataDir/; set mm 1; set kN 1; set s 1; set LunitTXT "mm"; set FunitTXT "kN";...

Thank you, I do a pushover analysis with changed elastic modulus for every one time step, the code is as follows: wipe; model BasicBuilder -ndm 2 -ndf 3; set dataDir Data; file mkdir $dataDir/; set mm 1; set kN 1; set s 1; set LunitTXT "mm"; set FunitTXT "kN"; set TunitTXT "...

Dear vesna, Thank you very much. These days I carefully read the example you provided and wrote a program about cantilever column under cyclic load with changed elastic modulus for every one time step, here damage equation is the function of the concrete strain, and defined as: dd=0, when 0≤ε≤εf ; d...

Dear vesna,
Thank you very much.These days.I have tried to do it as you said,but i don't successfully do it.Do you mean that i should make a new material every one time step inside an analysis loop? Can you set an example for me ?Thank you very much.

Best regards

Hello! Everyone, I want to simulate the changed elastic modulus and changed constitutive relation of concrete for every one time step. Here damage factor is the function of the concrete strain, and Ecxiu=(1-$dd)*$Ec, where Ecxiu is the elastic modulus after the concrete is damaged, dd is damage fact...

Hello vesna, thank you very much for your reply,this problem is solved according to your suggestion.

Best regards.
cicilixiaoran

Hello vesna, thank you very much for your reply,this problem is solved because of your answer of my next problem"About changed damping ratio for every one time step".Thank you very much!

Hello! Everyone, If I regression the formulation of the η=a*pow(σ,b) , where , η is hysteresis damping coefficient, σ is the maximum stress of the section of column bottom , and δ=η/2 ,where δ is damping ratio, I want to extraction the section strain of every one time step, and multiplied by elastic...

Hello, everyone, Now I have some problem about recorder in the circulation, for example: recorder Node -file $dataDir/DFree.out -time -node 2 -dof 1 2 3 disp; foreach Dmax $iDmax { set iDstep [GeneratePeaks $Dmax $Dincr $CycleType $Fact]; for {set i 1} {$i <= $Ncycles} {incr i 1} { set zeroD 0 set D...

Hello, does the below code indicate that betaKcomm will be updated in every time step? Is it that if the Kcurrent is choosed, then the tangent stiffness is used and both Kcurrent and coefficient are changed in every time step, if the KlastCommitt is choosed, then the stiffness of the last committed ...

Dear vesna, Thank you very much for your reply. Yes, after 2.48 sec the value(displacement) is constant. And the dynamic time-history curve(displacement-time) is a straight line parallel to time axis from 2.48 sec to 10 sec. I don't know how to upload pictures of dynamic time-history curve. Thank you!

Hello everybody!
when I conduct dynamic time-history of cantilever column, the maximum analysis time is defined 10 second，but when the time is 2.48 second, the dynamic time-history curve calculated is a straight line parallel to X axis up to the tenth seconds. Why is this? Thank you!

Dear vesna,

I successfully do it according to your suggestion.Thank you very much!

Best regards
cicilixiaoran

Dear vesna,

I successfully do it according to your suggestion.Thank you very much!

Best regards
cicilixiaoran

Dear vesna, Thank you for your help. set outFileID [open filetoread.out "r"] set b [read $outFileID] close $outFileID set a [lindex $b 1] puts "a is $a" Through the above command, I can get the second data "a" in the first lode step. That puts "a is $a" is put...