Plastic analysis will be used. By restraint I mean support. For instance will the bases be of pin type connection? and do I have to put supports at the haunches locations to? I notice doing so will give me next to zero axial force in the columns while the buckling will be great if i put noting.
so I'm rather confused how to obtain the forces required to to check the sections for compressinon, buckling and bending.
Thank you very much for this useful recourse.
I'm now at the stage where I want to determine what forces the haunches must transfer. The method I'm using are finite element software.
The only problem I have is wether I have to put restraint at the haunch connection or not prior to simulating the forces. What kind of restraints should i put there. Ofcourse the connection have to transfer moment and forces.