Originally posted by Kevin Brennan
Actually, the loop's structure was steel and therefore some of the most dependable on the ride. Sure, it pulled the most forces, but you didn't have to worry about snapping truss beams. The issue was the trains, which were pretty hefty and put too much stress on other parts of the track.
As for "would it fall down," I'm going to have to say no. I remember the track spine being pretty darn thick, and I really doubt those trains (even with their weight) could have caused the structure to fold.
Just the fact that it was a clothoid circle means it would be pretty strong reguardless. All the force would be transfered down both sides and into those hefty supports. But as said, the spine was freakin large anyways. I bet it could sit there all day and night without any stressing out.