The beams you see above the pipe work are actually a lifting frame for suspending propane gas lines for the upgrade of the pipe supports . We can only use the main structure to hang off this why we use the friction clamps.
Why did you need to use the friction clamps when you hung from the top beams to carry the bottom, thus you have a steel beam running the opposite direction next to your friction clamp,is that not also taking the weight?
I’m not questioning your work, looks a tidy job, just never used nor seen a friction clamp
So the Friction Clamps are a kind of Block n Tackle thing?
Also, how did you drop down onto the right hand side Dropper?? Did you use Goalposts/Trapeze and take it out after??
Looks like you might have built it off boat/barge under neath... if i could have done it that way, id have done it that way - materials all on the barge... life soooooo much easier, lol.