I am designing a bolted structural steel framework using C-sections (Channels) and Angles for radition shielding enclosures (weldments cannot be used). I want to analyze how the vertical pillars (see attachments) respond to loading but I'm not sure about the 'fixtures'.
Do all the bolt holes need to be fixed? (Image1)
What should be the fixtures? (Entire framework is grounded using Anchor Bolts)
Do I actually need to use bolts in the assembly for the sake of simulation?
A force of 10kN acts uniformly over the roof angles and channels.