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Hi everybody,
I want to model a building considering the nonlinear behavior of RC slab (Detailed- rebars in both directions) and therefore need to do a 3D modeling. Would you please advise how I can do model the slab?

Kind Regards,
FH

Thanks Frank but what do you reckon for solving this issue and restricting strain during thermal action?

Hi Frank,

Would you please help me with this issue?

Regards,

Hi brag006 wipe; model BasicBuilder -ndm 2 -ndf 3; set dataDir Data; file mkdir $dataDir; proc Wsection { secID matID d bf tf tw nfdw nftw nfbf nftf} { set dw [expr $d - 2 * $tf] set y1 [expr -$d/2] set y2 [expr -$dw/2] set y3 [expr $dw/2] set y4 [expr $d/2] set z1 [expr -$bf/2] set z2 [expr -$tw/2]...

I have checked everything. when I use just the following material definition it works uniaxialMaterial Steel02Thermal 1 2.75e8 2.1e11 0.01; But when I change it to this: uniaxialMaterial Steel02Thermal 2 2.75e8 2.1e11 0.01; uniaxialMaterial MinMax 1 2 -min -0.01864 -max 0.01864 it gives the error I ...

Hi I tried the new version (2.4.3 rev 5621) and although I didn't get the previous error I got the new one and analysis failed. WARNING BandGenLinLapackSolver::solve() -LAPACK routine returned 28 WARNING NewtonRaphson::solveCurrentStep() - the LinearSysOfEqn failed in solve() DirectIntegrationAnalys...

fmk wrote: > i have made a change to the MinMax material to fix that error. it will be in any > release >= 5597 of the code. Dear Frank I use the latest version of OpenSees (2.4.2 Rev 5540) but I have the same problem. When do you think it will be released? For another thing when I want to record st...

fmk wrote: > why can't you use the MinMax mateial > http://opensees.berkeley.edu/wiki/index.php/MinMax_Material. Other that > this the option option is to write some code or use the eleResponse command > to monitorr your strains and do something if they get too big. Dear Frank Thanks for your reply ...

Hi I want to perform thermal analysis of steel structures but can not restrict strain of material by using Steel01Thermal and Fatigue material or Max Min material.Therefore it is not possible to detect structural element failure while conducting such analysis. So It's highly appreciated if you can h...

Dear Vesna; In another approach I tried using zerolengh element for rotational DOFs. But now I have another problem analyzing my 3D model. I got the message: ''Ran out of memory for A size'' I wanted to ask if there is any limit for the number of elements or others in Opensees. It should be said tha...

Hi I wanted to ask about any probable problem using equalDOF for modeling pinned connection (beams or braces) in 3D modeling. I asked it because I was trying to run a simple 3D modeling. I was successful when the connections were all rigid, but while adding braces and using "equalDOF 1 21 1 2 3...

Hi I wanted to model a pinned connetion (beam to column connection). I used Equal Dof and Zerolength section and gave it the beam section used in the model but now as analysis result I got the moment of 24ton.m at both ends which seems wrong. I wanted to know if my modeling process is correct. if no...

Dear fmk thank you very much and here is the built model. wipe; model BasicBuilder -ndm 3 -ndf 6; set dataDir Data; file mkdir $dataDir; source Bsection.tcl; set LCol 300; set LBeam 300; set LGird 300; set NStory 1; set NBay 1; set NBayZ 1; node 1 0 0 0 node 2 300 0 0 node 3 0 300 0 node 4 300 300 0...

Hi I built a three dimensional one - story one - bay steel braced structure and analyzed it for first set ( transient), but after that when I was to remove some braces and continue analysis, OS stopped without any warnings and errors and came out of process. In this analysis the load pattern is not ...