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Sir, as you said in previous reply, "Probably a modeling issue. You have to provide more details" , that's why I used standard Opensees wiki examples and shared the screenshots of the part I added. So that I can be helped because most of the peoples who are working in Opensees knows those ...

First screenshot shows the part I added for shear aggregation in Opensees wiki example, "OpenSees Example 7. 3D Frame, 3-story 3-bayX 3-bayZ, Reinforced-Concrete Section" . Second screenshot shows the part I added for shear aggregation in Opensees wiki example, "OpenSees Example 2c. N...

Sure Sir

Hello Sir, As per your suggestion I tried cantilever problem and 3-D frame problem, " OpenSees Example 2c. Nonlinear Cantilever Column: Inelastic Uniaxial Materials in Fiber Section " and " OpenSees Example 7. 3D Frame, 3-story 3-bayX 3-bayZ, Reinforced-Concrete Section ". I am g...

And, Something more Sir. I am getting 2-3% difference in eigen values as obtained from Opensees and SAP2000. Gravity Analysis is giving me base reaction equal to the applied vertical load. Moreover, pushover curves are matching with SAP2000. The only difference I am unable to figure out is that why ...

https://drive.google.com/file/d/1Xj_O8CkR4mXVrzjBWNxGVJ41-2ACgrHe/view?usp=drive_link Sir I have defined 3D force based elements, Beams and columns, Linear transformation. ops.section('Fiber', SecID,'-GJ',SomeLargeValue) . . . . ops.uniaxialMaterial('Elastic',matTag,Gc*ShearArea) . . . . And then a...

I have modeled a 3 storey 3-D fame model using force based elements having 5 integration points and considering rigid diaphragm. I performed nonlinear static pushover pushover analysis for a drift of 4%. The concern is that I am getting the same pushover curves for frame without aggregating shear in...