[TowerTalk] guy wire tension

[Richard Spindler]

So, what is vortex shedding???

Doc / N9AM

----- Original Message -----
From: <Chanel1096@aol.com>
To: <towertalk@contesting.com>
Sent: Thursday, February 24, 2000 9:51 AM
Subject: Re: [TowerTalk] guy wire tension


>
> The reason for the 10% guy wire tension is to avoid certain side
effects.
> 1) If the tension is too low your guy wire could 'gallop' under
certain wind
> loading.  If the guys tension gets too low it can also go slack and if
the
> wind shift slightly it can go taut again leading to impact loads in
the wire,
> connection and the tower.
> 2) And if the tension is too high you can get Aeolian vibration, where
the
> cable will suffer from vortex shedding which can setup vibrations in
the guy
> wire that can be very detrimental to the tower.
>
> -Bill King
>
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