Buckling Analysis - failing members

[Gabriela.Bercot]

Hi,

I am working on a model of a simple steel frame with very little of loads on it. I am getting failing on members selected below (members: 9 12 47 49) for the stability check.
All the beams and simple members are pinned in the structure. I don't understand why these members are failing, it makes me think I missed something when I set up the code parameters for the calculation (not too sure if the buckling was correctly set, it is a bit confused for me on RSA). Could someone help me with this, please?

[stm1A]

hi,

if the problem is buckling, you can set new beam type with correct bucking paramiters for those beams:

you can act on global bucking lenght or on the way robot calculate lateral instability paramiter for beam.

if you not sure you can check on bar verification table.

[Gabriela.Bercot]

Hi @stm1A 

Thanks for your reply. How do I set up in this case? I confess it is a bit confusing for me to set up the buckling on RSA

[stm1A]

hi,

in my opinion the best way to consider lateral buckling for those beams is:

[stm1A]

hi 

in my opinion best way to consider lateral buckling for those beams is:

[Gabriela.Bercot]

Thanks for your help!

I set up as you said for lateral buckling it is ok, however I am getting the failing on uz direction. Do I need to also set up the buckling for Z direction?

[Rafacascudo · Accepted solution]

@Gabriela.Bercot  check this

Build your Robot Structural Analysis IQ - YouTube 

and watch webinar number 3 about Steel design

RSA steel design is probably the best in the structural software market