I regret to say that my description was not 100% accurate.
The tower legs and bracing are _not_ made of angle elements.
I went out to the site today and took some pictures.
The tower consists of 5 sections, presumably 20 ft each.
It is freestanding. And the top section is of a small
diameter solid rod (as I have seen up close), about 1/2"
in diameter. The legs of that section are 14" apart.
On the bottom two sections the legs are circular with welded on
tabs for the cross bracing. The bracing is bolted
to the tabs but the braces are circular and may
well be solid rod. I don't know if the bottom legs
are solid or hollow.
On the upper five sections the cross bracing is welded
to the legs.
I am posting some pictures of the overall tower
and of the top. One is a "selfie" giving some
scale of the elements of the top section.
http://w0ep.us/locoarc_tower
On 1/8/2016 8:03 AM, Chris Howard w0ep wrote:
>
> Hi,
>
> I'm a member of the Lowndes County ARC in Columbus, MS.
>
> I'm helping do some work on a tower of which we have taken possession.
> We want to put up a Ham-4 style rotator and a small tri-band beam
> but we seek guidance on the rotator plate.
>
> The tower is free standing.
> It is approximately 100' tall.
> It has three legs.
>
> The bottom is made of bolt-together pieces of
> galvanized steel angle.
>
> The upper sections are galvanized solid rod.
> I am uncertain about the section lengths.
>
> The sections are joined by small steel plates
> welded perpendicular to the ends of each of the solid rod
> legs and the plates are bolted together with four bolts.
>
> At the top there is a pyramid of solid rod holding up a piece
> of pipe in the center of the tower as a mast/guide.
>
> The top tower section is 1/2" solid rod with zig-zag bracing
> of 3/8(?) rod. The leg rods are 14" on center.
>
> Driving around the area, it seems like towers of this type
> are fairly common in the public service arena.
>
> Our goal is a rotator plate. Is there a "factory" plate
> for this tower? Is it something we need to fabricate?
>
> Thanks!
>
> Chris Howard
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|