I have a stock of surplus i-beams (aluminum) and am trying to build a structure where they are not always parallel. I understand i-beam is designed to be aligned vertically and optimized for strength in that direction.
What is the strongest way to connect i-beams at that are not parallel?
If you bolt plates onto the sides there is a gap behind the plates and you either need a spacer behind or need really long bolts which may be harder to find. Also you are bolting into the web which seems less strong to me.
Assume you have the option to cnc custom plates / add bolts / or weld... which is best in terms of layout and where to bolt to?