Not sure if the Eurocode has something analogous to the AISC's direct analysis method, for which you don't need to calculate the k values. All members get assigned a k of 1.
Else I would recommend looking into "Structural Stability of Steel: Concepts and applications for structural engineers"...
Depending on the version of ETABS you have you can run a Buckling Analysis of the whole structure.
See Link for reference.
Simplified steps:
1: Assign multiple load scenarios to your model.
2: Run an elastic Buckling Analisis for each scenario created.
Note: The result of these analysis is...
I'am trying to figure out a way to model an elevator shaft that does not contribute very much to the rigidity of the hole structure as to avoid causing too much eccentricity. Since it's my first time I wondered if anyone had any tips. My structure consists of rigid concrete frames with concrete...
