Thanks Guys,
Let's keep it simple, my main concern now how to select the proper pole
DIAMETER with those inputs.
Can anyone provide me with a spreadhseet to calculate the same.
> Date: Tue, 25 Aug 2009 06:59:31 -0700
> From: jimlux@earthlink.net
> To: sam_owe@hotmail.com
> CC: towertalk@contesting.com
> Subject: Re: [TowerTalk] Rooftop Poles Diameter Design
>
> Eng. Osama Ewaida wrote:
> >
> >
> >
> >
> >
> > Hi
> >
> > What the key parameters affect the pole diameter in addition to Equipment
> > load, Wind Load, and Wind speed ( both operational and survival)
> >
> > The subject poles can be fallen under different mounting scenario such as :
> > 3 meters wall mount, 6M Non-penetrating poles
> >
> > Is there a tool / formula can calculate and recommend the pole diameter
> > with what sort of inputs required?
> >
> > Many thanks for your kind support and quick answer in advance.
> >
> >
>
> There are a variety of spreadsheets out there that can calculate bending
> loads, and the failure loads for various tubing materials and tubing size.
>
> For calculating the actual wind loads, it's a bit trickier, because the
> aerodynamics are nontrivial. A decent approximation is to assume that
> the antenna is the same as a flat plate with area equal to the projected
> area of the antenna parts (that is, a 5cm diameter tube 3 meters long
> has an equivalent flat plate area of 3*.05 = .15 m^2) You then
> calculate the aerodynamic load by 1/2*rho*v^2*area in the usual way.
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