Search found 19 matches

by GianmarcoManzo
Sun Jan 19, 2020 5:31 pm
Forum: Property
Topic: Difference between modelling quad fiber or tri fiber
Replies: 2
Views: 316

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
1.PNG
1.PNG (22.81 KiB) Viewed 303 times
by GianmarcoManzo
Sun Jan 19, 2020 10:33 am
Forum: Property
Topic: Difference between modelling quad fiber or tri fiber
Replies: 2
Views: 316

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...
by GianmarcoManzo
Tue Jan 14, 2020 5:18 pm
Forum: Property
Topic: Geometric nonlinearity
Replies: 1
Views: 497

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.
by GianmarcoManzo
Tue Jan 14, 2020 12:55 pm
Forum: Property
Topic: corotTruss element
Replies: 3
Views: 715

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
by GianmarcoManzo
Sat Dec 14, 2019 12:26 pm
Forum: Property
Topic: corotTruss element
Replies: 3
Views: 715

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...
by GianmarcoManzo
Thu Dec 12, 2019 2:08 pm
Forum: .tcl files
Topic: opensees runs the STKO code
Replies: 3
Views: 613

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...
by GianmarcoManzo
Thu Dec 05, 2019 6:18 pm
Forum: Analysis
Topic: Error Analysis command
Replies: 2
Views: 404

Re: Error Analysis command

OK yes. That's the problem. I have modified the accents and the analysis run. Thx much
by GianmarcoManzo
Thu Dec 05, 2019 4:23 pm
Forum: Analysis
Topic: Error Analysis command
Replies: 2
Views: 404

Error Analysis command

Hi,
I have used custom command to run a pushover analysis but STKO give me this error:
error.PNG
error.PNG (32.16 KiB) Viewed 404 times
How can I fix it? thx
by GianmarcoManzo
Mon Dec 02, 2019 6:17 pm
Forum: Post processing and data visualization
Topic: Shear Visualization
Replies: 3
Views: 263

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...
by GianmarcoManzo
Sun Dec 01, 2019 6:21 pm
Forum: Property
Topic: Convention of bending moment signs
Replies: 3
Views: 717

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...