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RE: 30,000 foot Skyscraper.. .......!!!!!!

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10 km high (ballpark)
stress due to self-weight of steel column that high - 77. 0 kN/m3 x 10,000 m
= 770 MPa.
So, for a building with 50% net column area at ground floor, (yeah right...)
you need a steel yield strength of about 1700 MPa.

We're talking 4340 steel, heat treated and everything, and 50% coverage at
ground level.

Any other thoughts?  anti-gravity machine?

Subject: Re: 30,000 foot Skyscraper.. .......!!!!!!



chances are, it may collapse under its own weight.

errm, well it is getting late *yawn*.

Regards,
  Andrew
On Mon, 10 May 1999 Rbengrguy(--nospam--at)aol.com wrote:
> Attention fellow Structural Engineers.
> 
> This message is just in from the WORLD's Tallest Building website manager.
> 
> Maybe you have some thoughts on trying to build a 30,000 foot skyscraper!!