The OpenSees Community

Hi, this is the first time I have problem with materials,program writes "invalid command named Material" Someone could help me to find what's wrong? This is my script: set E 250000 ; # concrete elastic modulus set b0 24 ; # set h0 24 ; # set sh 8 ; # ##set bi 24 ; # set fy 4400 ; # set Es ...

Hi,
if I use this command :

recorder Node -file Eigenvector.out -node $nodes -dof 1 2 3 "eigen 1"

in modal analyze, are the values in the file normalized?
Thanks

Hi,
when I read an external file how Can I assign values of each line of that file to a variable,so that to create lists?
Thanks

What does it mean when it writes :ForceBeamColumn and deformation are not compatible?Is it a transformation problem?If I send you my files about my model without walls could tell me what is wrong?If you have little time

Thanks

in examples 8 of manual if I want to run pushover do I open example about pushover and call within it example that defines model?

Hi, about load command I'd like to know if,when I apply load to element ,I have to consider global or local axis as direction of loading. I mean,if in my model z is the vertical axis in global system and x is that one in local,do I have to put: 1) load 1 0. 0. -$Q 0. 0. 0. ; or 2) load 1 -$Q 0. 0. 0...

I have read in the manual that ,using eleLoad command ,nonlinearBeamColumn might have problems converging .... could it be this that gives me problems in my model?

You are right....it's a pity that nobody near me can't use this program and is able to help!
Thanks the same,really, I believe I must help myself!

I looked at it,maybe it could be a model problem...if you remember I have modeled walls as non linear beam column elements with large section ,at the edge of section I had two nodes ( 0 )that are connected with nothing...someone suggests me to use beam with elastic section to connect them ( 0 ) with...

I need help!
Thanks

That's exactly what I have done!

That's exactly what I have done!

In this specific case we have a wall that could be consider as slender bracket (I don't know if it's the right word) so shear deformations could be neglected and using nonLinear BeamColumn elements we can take into account non linearity of materials!

For pushover I use script of example 8.

Yes I have to do pushover but the problem I get: WARNING BandGenLinLapackSolver::solve() -LAPACK routine returned 178 WARNING NewtonRaphson::solveCurrentStep() -the LinearSysOfEqn failed in solve() StaticAnalysis::analyze() -the algorithm failed at iteration :0 with domain at load factor 0.2 analyze...