The OpenSees Community

parasismique wrote: ↑

Mon Oct 29, 2018 7:10 am

anitha, please.
Can you share the IDA script. I had the same problem?

I appriciate your help.

Hayet BOUAZZA.

Did you get it ? it is my problem too.

equalDOF? The adjacent beam and centerline of the wall are 4 meters apart. Does equalDOF work? The purpose of the stiff beam is 1) to consider the length of the wall and 2) to impose rotations of the wall to adjacent beams. equalDOF, in this case, imposes the rotations of the centerline of wall to ...

gst wrote: ↑

Mon Sep 11, 2017 12:35 pm

Thank you very much to all of you, I've solved the problem!!

How did you solve it ?

selimgunay wrote: ↑

Sun Aug 19, 2018 3:16 am

Could you contact Dr. Kristijan Kolozvari in CSU Fullerton?

Can I model the Shear wall in the bay of frame with SFI method ?

I have read the report "Shear-Flexure Interaction Modeling for Reinforced Concrete Structural Walls and Columns under Reversed Cyclic Loading". In this report, it is mentioned that analytical models of column specimens were generated in OpenSees using the SFI-MVLEM model elements. Three of the four...

Hi everyone, I am trying to model a shear wall with SFI-MVLEM. I used Menegotto&Pinto constitutive model for steel and Chang&Mander for concrete. I calculated all the concrete parameters following Chang&Mander formulas, except the values of xcrnu and xcrnc (see the code later). The model seems to w...

Hi, I currently am working on a research on the validation of SFI-MVLEM analytical modelling on a variety of shear wall specimens, including non rectangular (barbel and flange-shaped) ones. I am using the example file Example1. SFI_MVLEM (http://opensees.berkeley.edu/wiki/index ... r_RC_Walls) as m...

these materials cause problems .. i have some newer materials for modeling walls .. you might even try forgetting the beam elements with these .. here is some code copied from an example put together by Dr. Petrone # Concrete # Parameters for the new concrete model set E [expr 36900e6*$Pa] ;#elasti...

selimgunay wrote: ↑

Mon Jun 22, 2020 7:39 pm

The quickest way of debugging your tcl file is to add puts commands in several lines to see until which point it proceeds fine. Also it is needed to run opensees from the command prompt to avoid sudden closing of the window

Can I model the Shear wall in the bay of frame with SFI element ?

TPdct wrote: > Also, I advise you to use OpenSeesMP with Mumps solver to make computation > fast enough Thanks for your reply; this error was due to modeling; and it removed when i examined and correct the model; i would like to thank you for your reply; it would be useful for me. How did you fix y...

Yes you need to use transformation, penalty or Lagrange multipliers for mulit-dof constraints (i.e. constraints that related different DOF to each other) Thanks for your time but I faced with a Problem when I run my model , It did not give me a results, my results of elements and nodes will be zero...

YamanoKazuki wrote: ↑

Mon Sep 10, 2018 12:03 am

Dear all

I want to use "rigid link" command considering beam attached to wall. However, opensees say that "constraint matrix not identity" and I could't get the analysis. Please teach me how to solve the problem or another way to analyze.

I have same problem did you fix it ?

MohsenShani wrote: ↑

Sun Jan 03, 2016 3:39 am

i see your model.
the model is not correct. some problem in your model.
if you see the node displacement , You will find

I have the problem in WARNING: CTestNormDispIncr::test() - failed to converge
will be thankful if you could help me

wengmini wrote: ↑

Tue Sep 18, 2018 10:41 am

Hi,

I have the same problem with my model. It will not converge, I was wondering what was the problem with your model, maybe I can have a look at mine as well.

Thanks,

I have same problem did you fix your problem ?

I have the rigidlink beam and equalDOF command in my model and i tried all of the constrained but non of the them worked except the "Constrain transformation " can i use it ?