johnnyray
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Argle-Bargle, Jiggery-Pokery, and Applesauce
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Post by johnnyray on Oct 9, 2015 6:10:14 GMT -8
"Suspension Bridge Snaps, Sending Hikers Plummeting Into River" huff.to/1jT3l28
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Deleted
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Post by Deleted on Oct 9, 2015 6:28:34 GMT -8
It looks like there were four hikers with heavy packs all together. Say roughly a 700-pound load or more concentrated within around 20-30 feet along the bridge. Must have exceeded the load limit.  |
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desert dweller
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Post by desert dweller on Oct 9, 2015 6:53:09 GMT -8
Looking at that metal bridge with all the supports, I would have trusted it.
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amaruq
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Call me Little Spoon
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Post by amaruq on Oct 9, 2015 7:08:52 GMT -8
Some engineer is in trouble...
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Deleted
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Post by Deleted on Oct 9, 2015 7:13:04 GMT -8
The article says, "An investigation found that the failure was due to a rare manufacturing defect in a link of the cable."
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amaruq
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Post by amaruq on Oct 9, 2015 7:32:45 GMT -8
A quench crack as it were. If it was in the wire rope, that'd be incredibly rare given that wire rope wires are primarily cold drawn. The steel fittings, however, are typically quenched.
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rebeccad
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Post by rebeccad on Oct 9, 2015 8:01:17 GMT -8
Great. I was already uncomfortable enough crossing suspension bridges high over nasty water. At least that was a slow-moving stream (with enough water to cushion the fall). I think about some of the bridges I've crossed...oy.
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sarbar
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Post by sarbar on Oct 9, 2015 11:12:37 GMT -8
All the suspension bridges here have signs on them of "one person at a time". I'd say that is a good policy. If I am right, the bridge turned and dumped them?
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geosp
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Post by geosp on Oct 9, 2015 13:54:10 GMT -8
The bridge was apparently rated for 10 persons, so it would have been expected to be well within its limit.
Very lucky indeed that there were no injuries.
(The lake covers an area of 54sq kms and the 3-4 day track they were on traverses about half its circumference)
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sarbar
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Post by sarbar on Oct 10, 2015 11:37:27 GMT -8
Still, no one needs to cross that closely together  |
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Post by starwalker on Oct 10, 2015 14:47:49 GMT -8
They seemed to be walking "in step." That could have set up a harmonic situation the military tries to avoid by having the soldiers march "out of step.":
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Image Credit / Coolkat
