| Author |
Message |
    
Airplane1
Member
Username: Airplane1
Post Number: 92
Registered: 5-2004
| | Posted on Thursday, August 19, 2004 - 4:36 pm: | 
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I was going to put my tower up but just had an idea, I`t is the old tv antenna tower that people used years ago before cable tv.
Now it is 47 ft and I really dont want to guy it so what if I take metal rod and put it in the spaces going up the tower and weld it in on angles.
That would make triangles in all the spaces in the tower, This I would think would strengthen it cosiderably and the It would be ok if bracketed at 14ft.
What does everyone think? Good idea or not?
Thanks, Roger |
Dindin
Intermediate Member
Username: Dindin
Post Number: 335
Registered: 2-2004
| | Posted on Thursday, August 19, 2004 - 6:30 pm: |
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Roger,I dont think I would go to that trouble.If you put the first 3 feet in concrete and braced at 14feet the maco wouldnt be too much wind load for that setup.adding the diagnals would be adding more weight to handle when erecting it plus increasing the windload of the tower itself. |
409
Member
Username: 409
Post Number: 78
Registered: 3-2002
| | Posted on Sunday, August 22, 2004 - 3:17 am: |
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My 50ft tower was originally a tv setup. I don't use any guy-wires on it. I built a hinge assembly with a steel plate across the bottom section of the tower with a large 1 inch pin welded across the plate. The pin goes through half-inch thick steel plates anchored in cement and set about two feet or so in the ground. The third leg of the tower is free to be bolted to the third anchor plat also cemented . All i have to do is loosen and remove two bolts and lower the tower and antenna to the ground for service . It has been up with my Antron on top for over five years with no problem. Those things need a paint job every now and then! |
Bullet
Intermediate Member
Username: Bullet
Post Number: 361
Registered: 7-2003
| | Posted on Sunday, August 22, 2004 - 5:02 am: |
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yes it would stiffen it up,(like rohn 25G) but like Dindin said at 47ft and braced at 14ft i dont think it really needs it. |
Kirk
Intermediate Member
Username: Kirk
Post Number: 240
Registered: 6-2002
| | Posted on Monday, August 23, 2004 - 5:17 pm: |
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Airplane, what are you wanting to put on it? There was a mention of a Maco but I didn't see that in the post from you. Like the others have said it will strengthen the tower, more so for the twisting action you would get from something like a beam. I have a 40ft American Steel type that has 3 bags of quick crete at the footing and is anchored at about 15 feet to my garage. I only have a IMAX 2000 and a small 5 element Cushcraft 2m/440 antenna on it. Had no problems at all, but I'd never climb past the anchor point. If you plan on putting it up and maybe making changes in the future (as in climbling it rather than hinge it back down) then I would certain guy it. Good luck and 73-- |
Lowpowerhal
Intermediate Member
Username: Lowpowerhal
Post Number: 310
Registered: 7-2003
| | Posted on Monday, August 23, 2004 - 7:22 pm: |
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airplane 1 Ok first ? Is it the kind of tower that has flat sheet metal about 1" 3/4 wide about every 10" or so? Ok next ? Its is a galvanized tower Correct? Next ? any rust at all on it? Now If im right about what tower you have ,doint do any welding at all on it.It will only weaking it.Plus if im correct on which tower you have they are made from thin wall tubing, not pipe as the newer ones are.Guy wire it. Hopes this help |
Airplane1
Member
Username: Airplane1
Post Number: 97
Registered: 5-2004
| | Posted on Monday, August 23, 2004 - 8:38 pm: |
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I am putting a maco v 5/8 on it, In time I will repace it with a maco 103 beam.
I would like to hinge it but not sure how to do it.
and I dont climb anything any more, to scared at my old age of 43years.
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I know what you mean Airplane by not wanting to climb anymore. I'm 56 now and limit myself to hights of about only 60ft. LOL. Anything beyond that makes me nervous.
I find it amazing that the older we get, the bigger sissys we become. And you young guys can laugh all you want...your day is coming too.
Jeff
Tech548
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Airplane1
Member
Username: Airplane1
Post Number: 98
Registered: 5-2004
| | Posted on Monday, August 23, 2004 - 8:45 pm: |
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The tower is made of all tube even the parts that are horizontal and are about 22 inches apart.
it is galvanized but not rusted except the top 8ft.
I dont know the brand just know its from the 60s. |
409
Member
Username: 409
Post Number: 80
Registered: 3-2002
| | Posted on Tuesday, August 24, 2004 - 3:58 am: |
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Airplane...i'll try to send you a pic of the hinge assembly ASAP !! |
Airplane1
Intermediate Member
Username: Airplane1
Post Number: 101
Registered: 5-2004
| | Posted on Tuesday, August 24, 2004 - 11:21 am: |
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Thanks 409,
I appreciate it. |
