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Infinitely strong cantilever 2

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"will be supported by steel beams ". So contact your local steel warehouse/ fabricator.

The shadow appears to show cross braces between the inner and outer walls. My guess is the beams would be much deeper than shown in the rendering. No reason they couldn't put big knee braces below it if they so desired.

The article mentions 72,000,000 lbs capacity. I suspect this should be 72,000 lbs.

So be studying up on those curved beam equations...(see that thread in the FEA forum).
 
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120 people, lets say 50,000 lbs
uniformly distributed on a ring, 70' radius
centroid is about 50'
so the bending moment at the cliff is 2.5Mft.lbs
supported by two I-beams (of very large size) ...

how about cable trusses above the platform ?
 
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quote:
The project is still seeking an insurer, said architect David Jin, who said he came up with the skywalk idea while visiting the canyon in 1996.

do we need to add anything more?

 
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Thought that might bring a chuckle to a few informed people.

Just when you think one of your designs may be a bit hokey... this will always serve as a baseline of hokeyness... lol

DRW
 
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It's a bit of a challenge... but if you make the guardrails composite with the concrete and beef them up a tad... just a matter of doing the sums... You don't, however, want to use diagonal struts... they would have a tendency to cause the track to pull out from the cliff face... <G>

Dik
 
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Environmentally speaking - it is an outrage. Visual pollution. If you want thrills, try base jumping. Maybe the Hualapi nation should try building a casino, out of site of the canyon. I always regarded Native Americans as respecting the Earth, but that idea is idiotic.
 
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Isn't the solution obvious? They just need to place a couple of skyhooks at the end!

One of my mentors always used to say if it doesn't 'look right' then it probably isn't, and the proposed structure, as pictured, just doesn't look right to me.

The knee-braced solution may spoil the view through the 'glass' bottom, so I expect they'll end up with a cable-stayed structure, which will look good anyway.
 
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Uh...sacrebleu...every building ever built is visual pollution when you really get down to it...Dallas actually looked a whole lot better when it was all pasture, I'll bet...
 
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All these skyhooks sound like a novel solution... but one would need a hell of a skyhook to support the 72 million pounds... it would have to be one of the strongest skyhooks ever made... it may even warrant upgrading to a moonhook.

they must like safety fators out there, because it would be in the order of 3000 or so.

I would pay 25 bucks in a heartbeat to see how they can support 72 million pounds with a cantilever 70 feet long.
 
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From a different website, I find an extra paragraph inserted in the story, to read:

"Las Vegas-based architect David Jin came up with the idea for the skywalk in 1996 during a trip to the Canyon.

He teamed up with Lochsa Engineering, also from Las Vegas, whose portfolio includes Mandalay Bay Hotel and Hard Rock Hotel."

IE, those of you wishing to get involved on the project are too late!

Personally, I think they should omit the glass walls, and in fact, not even put up a handrail. Just a 5' wide sidewalk out into space. That would be cool.
 
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SMCADMAN...
The concrete would have to be transparent... not transluscent... else we would see it!

DRW75... that would be an SG0714 sky hook... the 713 is about 8% shy...

Dik (quibbling, again)
 
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