hey,
I want to design a steel structure elements on robot,
however i am getting confused by the member type between simple bar and beam.
Both give different results of ratio and one take into consideration lateral buckling the other no. for example bar 88 see attached dwg.
What should I use usually please can you help me.
http://www.filemail.com/d/kisbwnjvunyglqb
Regards,
George