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Round House more wind resistant?

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Round House more wind resistant? Vic Dura 07-17-2005
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Posted by Michael Daly on July 20, 2005, 1:40 am




> And, in a roundhouse those damned locomotives take up so much space!

Ballast - that's why they're wind resistant.

Mike


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Posted by CL (dnoyeB) Gilbert on July 20, 2005, 9:02 am


Vic Dura wrote:
> Here is an article claiming that a 2400 sqft "round" house (approx 28'
> dia.) is more resistant to wind than a rectilinear (square or
> rectangle) house.
>
> http://home.hiwaay.net/~vdura/Images/scan2.jpg
>
> Any comments/opinions on the veracity of the claims?
>

The force due to wind will be proportional to the surface area the wind
passes. Its not the roundness per se that is making the difference.
Its the more efficient use of surface area. Round house does use less
surface area per given volume.

If you take a given surface area, and make it round, its still going to
receive the same amount of force.

So I guess I have to agree. Given a fixed square footage (2400) which
yields a fixed volume, the round house will be affected less by the wind
pressure because it will have less surface area.


--
Respectfully,


CL Gilbert


Posted by SJF on July 20, 2005, 2:42 pm


> Here is an article claiming that a 2400 sqft "round" house (approx 28'
> dia.) is more resistant to wind than a rectilinear (square or
> rectangle) house.
>
> http://home.hiwaay.net/~vdura/Images/scan2.jpg
>
> Any comments/opinions on the veracity of the claims?
>
> --
> To reply to me directly, remove the CLUTTER from my email address.

The cited article is nothing more than a sales pitch -- a simple answer to a
very complex question. A structure, whatever its shape, should be designed
to resist whatever forces may be imposed, windwise or otherwise. The shape
of the structure is only one of many factors to be considered in design,
factors such as esthetics, economy, utility and the desire to have something
unique. Considering these, it is easy to see why circular and dome houses
have not become a standard.

For an indication of how complex innovative design to resist wind stresses
can be --

http://irc.nrc-cnrc.gc.ca/cbd/cbd034e.html

SJF




Posted by Edwin Pawlowski on July 21, 2005, 12:26 am



> The cited article is nothing more than a sales pitch -- a simple answer to
> a
> very complex question. A structure, whatever its shape, should be
> designed
> to resist whatever forces may be imposed, windwise or otherwise. The
> shape
> of the structure is only one of many factors to be considered in design,
> factors such as esthetics, economy, utility and the desire to have
> something
> unique. Considering these, it is easy to see why circular and dome houses
> have not become a standard.

Circular is far from the "best" overall design, but it can be a style to be
admired by some. It has plenty of drawbacks from a practicality point of
view. But if you have the money . . . .

If you want to build for strength, I'd go with concrete. Using insulating
concrete forms is becoming very popular both because of the strength issues
and the energy efficiency. www.integrapec.com www.polysteel.com
www.standardicf.com are just a few of them. I saw pictures of one that
went through a tornado. While there was some damage, the interior was
hardly touched.
--
Ed
http://pages.cthome.net/edhome/




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