Seismosoft | Earthquake Engineering Solutions

I have validated a BRB element.
When I add it into another model (whole building model, non ductile RC building), the structure deviates more (drift increases).
what considerations should be taken into account while modelling a whole building ?
or is that an acceptable/normal behavior ?

Hey,
I performed a pushover analysis on a building but I have some troubles with the solution.

considering the deformed shape ..... it seems like the first story is only pushed while the other top stories are not.
considering the capacity curve .... the curve I get is so weird as it after goes up ...

When I model a retrofitted (RC) frame with BRB/s, I could get the global response hysteretic results (force vs displacement) for the whole time history/target displacements I enter, on the other hand, I could not get the whole hysteretic results for the truss element (BRB).
so how can I review the ...

I tried both solutions, the rigid offsets and the different nodes.
The rigid offset, didn't work well or give good results, the other solution which was using different nodes was pretty good and gave acceptable results.

How can I add a material type/curve (Popovics and Karsan-Jirsa concrete stress-strain curve model) ?

can I attach a picture here to illustrate what I want to model ?

could you please help me model a concrete frame attached to it steel frame from inside (internal frame),
in other words, I have an existing RC frame and I need to add a steel frame to it ?

After modelling and running the model, as I click on the "Post Processor" tab, a warning message "Axis Maximum Value must be >=Minimum".
how can I solve it ?
(despite the model is run, no results are able to be previewed)

How can I make sure that I have modeled (simulated) a correct BRB model element in SeismoStruct ?

Dear Zoi Gronti
I modeled the BRB use truss element class and the cross section is CSS (Circular solid Section)
is that a correct way for the BRB modelling ?

Also what is the best Stress-Strain curve that best fits the steel material for the BRB ?