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Dear STKO Team,

Thank you very much for your response. I read through the forum thread you shared, but I’m still unsure about the exact steps needed to extract story shear data.

Currently, I tried enabling section.force in the recorder and intended to extract the shear forces of columns by ...

Dear STKO Team,

Thank you for your response — I was able to successfully plot the hysteresis loops for the joints!

I apologize for reaching out again, but I am currently trying to extract the story shear forces for each floor of my model and have been encountering difficulty identifying which ...

Dear STKO Team,

Thank you very much for your help! Thanks to your guidance, I successfully conducted the simulation using fiber elements with rcJoint3D joints.

However, when I tried to analyze the failure modes of the joints on each floor, I realized that I am unsure how to select the appropriate ...

Dear STKO Team,

After completing the joint simulation tests, I proceeded with modeling a 10-story RC structure using the same approach. The beam and column elements are modeled with fiber sections, and the joints are implemented using rcJoint3D. However, upon completing the modeling and performing ...

Dear STKO Team,

I hope this message finds you well.

I am currently attempting to simulate the E-defense shaking table test using a fiber section model for a ten-story structure with a fixed base. However, after completing the fiber model and running a modal analysis, I noticed a significant ...

Dear STKO Team,

Thank you very much for your prompt response!

Following your suggestions, I have attempted to adjust the seeds and set the element to rebuild a quad mesh.
However, despite these efforts, the elements still appear as triangular meshes (as shown in Figure 1), and I am unsure how to ...

Dear STKO Team,
I also encountered the same problem.
I have checked the element properties that I assigned, it seemed to be right.
As for the geometry, I am not sure if there is something wrong.
Could you please help me to find the mistakes I made?
There are the error screenshot and my model file ...

Thank you so much for taking the time to assist me with my problem!
While the stiffness value still differs slightly from the experimental results (it now appears to be somewhat higher than the experimental value), your guidance has greatly improved the situation compared to before. Truly ...

Dear STKO Team,

Thank you for your response! This has resolved my previous issue.

However, I now face a different problem. I am conducting a simulation of an external joint with a height of 3.7 m and a length of 4.1 m, applying both axial force and displacement control at the column base (as shown ...

Dear STKO Team,

Hi, I am a beginner for both OPENSEES and STKO. Recently, I am currently attempting to use rcjoint3D to simulate the experimental results of a beam-column joint. However, I have encountered an issue where I cannot apply displacement control to both beams simultaneously at their ends ...