BioMax
+1y
Chain is only designed to be used in tension. Tension is the stress that is created when you pull on something. Most things are very strong in tension, but a bending load (pretty obvious explanation here) or compression (when you try to shorten it, the oposite of tension) becomes a little different. If you were to design a bar that used the chain as a truss, the chain would only be loaded in tension and would work great. But something like what is pictured would see tension and compression loads. Obviously welding the chain liks up would strengthen the chain and aid in compression loads, but in order to be strong enough for continued use, the chain would need to be quite large and would be an engineering disaster.
I know I am going way deeper than one would need to concern themselves with, but the point is that the idea is do-able.