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I´m having similar problems with my model, have you found out whats wrong?
however why are you adding torsion to a model where your rotation dof are not restrained..

I am doing a simple nonlinear analysis with opensees on a simply supported beams witch I have already broken in the laboratory. In the lab it was observed that the failure mechanism was pure bending. The beam is 1150 mm long with cross section 150x150 mm and has 2K6 bars (2 x 6 mm) bars at d= 135 mm...

Hi I am trying to model a series off classical RC beam test as a part of masters thesis, seemingly I am using correct material parameters recorded from the test series, however in every single Opensees simulation the beams deflections at midspan vs. Load are off by a considereable ammount (25-30%-is...

Ok simple mistake, the boundary condition at node 1 is not as it should be, don´t get how I missed that

Hi. I´m having some problems with my simply supported beam. Setup is basic see below. I´m monitoring deflections at node 2. When I apply these boundary conditions I get deflections that are too small (very small) however when I remove the roller and node 3 is free then I start getting "correct-ish" ...

Hi and thx four previous reply. I am having convergence problems when doing my pushover analysis at certain higher loads, when I run the the input file, opensees spits out all sorts of ...error Does anyone know why? plz help? I am using concrete07 material with some recommended parameters from the w...

Found the problem:
# element connectivity:
# cannot handle > 10 integration points + odd
# so:
set numIntgrPts 10;

Does someone know why this is?

My model is a simply supported beam of reinforced concrete. I modeled it as a nonlinear element. I want to do a static pushover analysis by applying the load at the middle of the beam. I am using Example 2. 2D cantilever column, static pushover as a reference. Now I have defined three nodes (at the ...