Search found 19 matches
- Sun Jan 19, 2020 5:31 pm
- Forum: Property
- Topic: Difference between modelling quad fiber or tri fiber
- Replies: 2
- Views: 2284
Re: Difference between modelling quad fiber or tri fiber
problem solved. the sections were rotated differently in the two models. following the instructions in the link posted in the previous message I solved it. in fact, by showing the fiber plot you can see the orientation of the section. now the difference is very little
- Sun Jan 19, 2020 10:33 am
- Forum: Property
- Topic: Difference between modelling quad fiber or tri fiber
- Replies: 2
- Views: 2284
Difference between modelling quad fiber or tri fiber
Hello, I modeled a structure using triangular fiber discretization with STKO. Later I modified the section.tcl file inserting a quad fiber discretization. Unfortunately, the results of the two analyzes do not converge. Can you tell me how do I spot the error? Or if is it correct this difference? I t...
- Tue Jan 14, 2020 5:18 pm
- Forum: OpenSees Sequential
- Topic: Geometric nonlinearity
- Replies: 1
- Views: 2540
Geometric nonlinearity
Hi, can you tell me if using the corotational formulation implemented in stko when I define a forcebeamcolumn element I can grasp both the large p-delta effects and the small p-delta effects? Thank you.
- Tue Jan 14, 2020 12:55 pm
- Forum: OpenSees Sequential
- Topic: corotTruss element
- Replies: 3
- Views: 3735
Re: corotTruss element
OK, but with corottruss elements is it possible to grasp the geometric and material nonlinear behavior with OpenSees without using the STKO postprocessor? Thank you
- Sat Dec 14, 2019 12:26 pm
- Forum: OpenSees Sequential
- Topic: corotTruss element
- Replies: 3
- Views: 3735
corotTruss element
Hi everyone, I'm trying to use the corotTruss element and I wanted to know if the procedure I follow is correct because in the analysis I have an error. After building the model, I generated FIBER sections and assigned them to the elements. Then I created the element truss_corot_elements and assigne...
- Thu Dec 12, 2019 2:08 pm
- Forum: OpenSees Sequential
- Topic: opensees runs the STKO code
- Replies: 3
- Views: 3598
Re: opensees runs the STKO code
Probably because in the analysis_steps.tcl file you have left the MPCO recorder instructions. If you want to start opensees manually by doing 'source main.tcl' you have to change the recorder instructions in the analysis_Steps.tcl file and use the opensees own ones: https://opensees.berkeley.edu/wik...
- Thu Dec 05, 2019 6:18 pm
- Forum: Analysis
- Topic: Error Analysis command
- Replies: 2
- Views: 2148
Re: Error Analysis command
OK yes. That's the problem. I have modified the accents and the analysis run. Thx much
- Thu Dec 05, 2019 4:23 pm
- Forum: Analysis
- Topic: Error Analysis command
- Replies: 2
- Views: 2148
Error Analysis command
Hi,
I have used custom command to run a pushover analysis but STKO give me this error:
How can I fix it? thx
I have used custom command to run a pushover analysis but STKO give me this error:
How can I fix it? thx
- Mon Dec 02, 2019 6:17 pm
- Forum: Post processing and data visualization
- Topic: Shear Visualization
- Replies: 3
- Views: 2346
Re: Shear Visualization
OK. I have tried tu use section integrator. I have created in order: - material - fiber section - section aggregator - special purpose.beam.section.proprety in witch I have set the section aggregator tag I have assigned to the element and at last I have created force.beam.column element. Is it corre...
- Sun Dec 01, 2019 6:21 pm
- Forum: Property
- Topic: Convention of bending moment signs
- Replies: 3
- Views: 3096
Re: Convention of bending moment signs
Place some photos showing both the orientation of the local axis of the element and the global axis (in both software). The diagram of the moment in STKO is visible with the colors while from seismo there is the diagram in 3D and I also reported the 2D one with the values. The values are perfectly...