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The Sky's the Limit

Posted September 07, 2009 8:13 AM

Practicality takes a second seat when the race is on to be the tallest. But, the bragging that began with the tallest skyscrapers now includes a supremacy scuffle in Ferris Wheels, with a new tallest of "observation" structures, the Great Wheel of China, due for completion later this year. Are these really fantastic feats, or colossal calamities waiting to happen? Should we discourage each big reach, or view the works as testaments of engineering know how?

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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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Re: The Sky's the Limit

09/08/2009 12:00 AM

Just do the design properly. In the case of Ferris wheels, wind and seismic loads will be crucial, perhaps especially for "dust-devil" vortices that could push in opposite directions on either half of the wheel. I once saw a dust-devil flip over an inflated- castle amusement-park structure. Fortunately, no one was in it at the time. I have also flown in a helicopter over a tent that was not staked down. It rolled ass-over-teakettle down the hill.

Please do not be a philistine who would "discourage each big reach." Do it right, that's all. Read Salvadori's books on why buildings stay up or fall down, and for inspiration, check out Santiago Calatrava.

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