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is much easier if you post the script

and for the transverse rebars?

you made my day

hei, i am reading the article "http://www.luxinzheng.net/publication6/Shell_wall_element_OpenSees_FEAD_2015.htm", where the model is described. I still don't get how to combine the thickness with the area of the rebars? is it the total area of the rebars or what? #middle region # material ...

hei,
i have a similar problem. Can you explain me how do you define the asbolute thickness of the rebars in the section layeredShell?

thanks

Hei, I am trying to use the same model, but I couldn't understand how the section layer is implemented. Especially, the absolute thickness of the reinforcement (rebars). Is it the diameter of the rebar or what? I would appreciate for any suggestion. section LayeredShell 2 8 4 0.0125 11 0.0002403 10 ...

Never mind I found the solution by using:
set lambda [eigen -fullGenLapack $numModes];

The error message is: ArpackSolver::Error with_saupd info = -9999 Could not build an Arnoldi Factorization.IPARAM<5> the size of the current Arnoldi factorization: is 4factorization. The user is advised to check that enough workspace and array storage has been allocated. WARNING StaticAnalysis::eige...

hei, I am trying to find the first 4 modes of the model below. If I set the number of modes equal to 2, the script runs and i get results. But if I change the number of modes to 4 or more , the opensees window disappear and the output file is empty. Can someone tell me what is wrong with this script...

Hei, I am a new user in Opensees. The structure consist of a shear wall and column. The analysis that will be computed are: -Modal Analysis - Pushover Analysis - Non-Linear Time-History Analysis The questions that raise up are: - It is better to model it in 2D or 3D - If 2D, which element type and s...