3 ms·
I wonder whats going on with the cable when it fails. It seems to be snapping/frays at first, but then it seems like it was pulled out of its base
by NikolaeVarius 6y ago
I wonder whats going on with the cable when it fails.
It seems to be snapping/frays at first, but then it seems like it was pulled out of its base
- jeffbee 6y agoWhy not both? At first a few strands of one cable are snapping. Then the remaining strands break altogether. Then the remaining cables also break. Finally, one of the towers fails because it's designed to take a vertical load and suddenly it is supporting a net horizontal load.
- sp332 6y agoThe anchor is made by unraveling the strands, covering them in concrete, and wedging the solid block in a cone-shaped opening so it can't pull out. One of the other cables also failed at its anchor, which is really not supposed to happen, so maybe something similar happened here. One or two strands managed to pull out of the block individually, leaving enough room for the rest to pull out in one piece?
- dylan604 6y agoThere is a lot LOT LOT of tension on these cables. So if something seemingly small snaps, then the strength of the rest of the cable is compromised. Each of the strands in the cable is rated for a specific amount of weight/tension. I'm sure there was some tolerance/over-engineering in the amount the cables could support, but as the individual strands started to pop, it was only a matter of time. >seems like it was pulled out of its base That's pretty much what happened. All of that weight on the cable pulled it away from its support structure on that tower. Gravity did the rest.