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Thank you very much..
Everything is clear now!

# Units: N,m node 1 0.00 3.00 0.00 ; node 2 0.00 7.10 0.00 ; set fc [expr -18000000.]; # CONCRETE Compressive Strength for B225 (+Tension, -Compression) set Ec [expr 11000000000.*pow([expr -$fc/1000000],0.3)]; # Concrete Elastic Modulus set nu 0.2; set Gc [expr $Ec/2./[expr 1+$nu]]; # Torsional stif...

Can I choose the time step for the results from the command you proposed or it only has to do with where you place it in your script??? By writing "puts [eleResponse 2110 localForces] puts [eleResponse 2110 globalForces]" after the dynamic analysis, I get: 390454.57 1362.49 2073.84 126.33 ...

I'm recording forces at the ends of a column. Firstly, I use "localForce" and then "globalForce". Both cases give me the same values for Fx,Fy,Fz. I mean that I have: Fx=FY, Fy=FX and Fz=-FZ. But when I look at the moments (Mx,My,Mz) I see that the values are different. Why is th...

Thanks for your reply..

I was confused because I assumed the local y-axis upwards...

Everything is clear now..

I'm studing example 7 and I'm a little bit confused about vectxz for girders. Let's say we have the element 1321 with nodeI --> 121 and nodeJ--> 221, so local x-axis has the same direction and sign with global Z-axis. Assuming that local y-axis is vertical, the local z-axis should have the same dire...

Is there any way I can have shear+flexure+axial interaction in a 3D building with displacement-based elements??

Thank you!

During a pushover analysis and after a number of steps, the message below appears:

"R is negative for ReinforcingSteel::Set MP"

Do you know what does this mean??

Thank you!

I have a 3D model with fiber sections and displacement-based elements. The static analysis for gravity loads as well as the dynamic analysis using a particular accelogram have no problem at all. But when I try a pushover analysis for my model the message below appears: UMD2FA: matrix is singular. On...

Thank you very much...
I'll check again nodes and member connectivity!!

One more question, can I source my tcl files (Model Build, Analysis) with BuildingTcl Release 1.9 and watch my results graphically?? Do you have any manual for this???

Thanks again!!!

yes as it is suggested in example 8..

About the constraints, all the base nodes are fixed and there is a rigid diaphragm for all the nodes at each floor (including the nodes at the ends of all the three parts each beam is seperated). Now, the nodes from the division of the columns are not constrained at all.... Do you think there might ...

If I try an eigen analysis the message is:

BandArpackSolver::Error in dgbtrf_
Warning FrequencyAlgo::solveCurrentStep() - the EigenSOE failed in solve().
EigenAnalysis::analyze() - algorithm failed
missing function argument at _@_
in expression "pow(_@_,0.5)"
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Hello! I run a static analysis for gravity loads for a 3-story 3-bayx 4-bayz building. I have 3 elements per beam and 2 elements per column. Because of that I use "dispBeamColumn" elements with fiber sections. For the analysis I have the script below: # Gravity-analysis parameters -- load-...

Thanks!