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thanks for your kindness, pejman!

thanks for your reply, Pejman! I am glad to hear that you focus on this area.

Hi, pejman! I read your script about the Buckling in Useful Scripts. But I want to know that whether your script accounted for the local buckling? Thanks!

Hi, everyone. I want to know more about the Corotational Transformation & the Displacement-Based Beam-Column element. I really appreciate if someone tell me. Thanks!

I have the same question about this. Can anyone help me? Thanks!

Thanks for your suggestion, silvia! But I still have some trouble. I defined the damper with the viscous command, it is the relationship between the stress and the strain-rate(so is the force and the velocity). But with the section Aggregator command, the "$string" has the P, Mz, My, Vz, V...

Thanks, silvia! I tried both of the truss commends. 1. element truss $eleTag $iNode $jNode $A $matTag In this commend, $A affect the result of the analysis, I have no idea how to define it. 2. element truss $eleTag $iNode $jNode $secTag With this commend, I used the Uniaxial section(section Uniaxial...

Hi silvia,
I am doing a 2d portal with a viscous damper brace. and I defined a viscous material, but I am not sure how to define the brace(which section and element to use).

Thanks silvia. I have got it!

Hi everyone! I did a 2D portal nonlinear time history analysis. Comparing to the results of the SAP2000, I found that it just has the elastic behavior. After I enhance the groundmotion input, and it can not converge. Can anyone tell me how I can get the plastic behavior of the model? Is there anythi...

i have the same question about this. i want to know how to define the 4 parameters that i want to set a constant damping ratio of 2%.
thanks!