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1. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Tue, 03 Sep 2002 23:23:02 -0500; Howdy all, I am shortly going to be putting up my first real tower - 5 sections of Rohn 25. I plan on guying the tower with two sets of guys per Rohn specs. My question is about anchoring them. I hav; /archives//html/Towertalk/2002-09/msg00126.html (8,217 bytes)
2. [Towertalk] Guy Anchor Question (score: 1): Author: mjwetzel@comcast.net (Mike Wetzel); Date: Tue, 03 Sep 2002 23:39:07 -0500; Jon, I have a couple Rohn 25 towers, one of 110' and one of 160' and both are guyed with hand installed screw anchors. The taller tower has 2 sets. The anchors I used have a screw of about 4" in diam; /archives//html/Towertalk/2002-09/msg00127.html (10,116 bytes)
3. [Towertalk] Guy Anchor Question (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Wed, 4 Sep 2002 00:57:21 EDT; holding screw I I go No, they're not sufficient. Yes, do the extra work. Fifty-feet of 25G has 2 sets of guys; the maximum guywire strength at the anchor before failure is 8,000 pounds. This is SIGNI; /archives//html/Towertalk/2002-09/msg00129.html (9,626 bytes)
4. [Towertalk] Guy Anchor Question (score: 1): Author: n4kg@juno.com (n4kg@juno.com); Date: Wed, 4 Sep 2002 04:47:23 -0600; While the GUY WIRE 'capability' of a 50 ft (to 70 ft) R25 tower guyed with 3/16 inch EHS may exceed the rating of a screw anchor, the actual LOAD is quite a bit LESS. A 12 sq ft antenna in a 30 psf w; /archives//html/Towertalk/2002-09/msg00132.html (12,892 bytes)
5. [Towertalk] Guy Anchor Question (score: 1): Author: n2rd@arrl.net (Rajiv Dewan, N2RD); Date: Wed, 4 Sep 2002 08:11:52 -0400; Ya gotta think of the soil. My guess is that Mike, with 4" screw anchors holding up the 160' beast has good strong compacted clay. These anchors would hardly suffice if you have essentially dune sand; /archives//html/Towertalk/2002-09/msg00135.html (11,995 bytes)
6. [Towertalk] Guy Anchor Question (score: 1): Author: kk9a@arrl.net (kk9a@arrl.net); Date: Wed, 4 Sep 2002 07:47:07 -0500; I think that there's a lot of clay in your area and the screw in anchors probably will work fine. I know of a 60' Rohn 25 tower locally that only used the screw in anchors and it stood for years unti; /archives//html/Towertalk/2002-09/msg00137.html (10,216 bytes)
7. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Wed, 04 Sep 2002 13:21:03 -0500; Where did you get the 8000 pound number? The specs on 3/16" guy wire from Rohn are 3990 pound breaking strength. 1/4" guy wire has 6650 pound strength and 5/16 guy wire has 11,200 pounds strength. So; /archives//html/Towertalk/2002-09/msg00145.html (9,980 bytes)
8. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Wed, 04 Sep 2002 13:41:57 -0500; I just looked at the Rohn website and saw a couple of things: 1.) I answered my question of guy tension: 400 pounds 2.) For 110 MPH winds on a 50 foot tower, you have forces on the anchor of 1480 pou; /archives//html/Towertalk/2002-09/msg00146.html (11,067 bytes)
9. [Towertalk] Guy Anchor Question (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Wed, 4 Sep 2002 14:42:43 EDT; the creep to Yes. Unfortunately I'm not an engineer so had the exact situation a little wrong but at least I erred on the conservative side of things. The recommended tension for guys is approximatel; /archives//html/Towertalk/2002-09/msg00147.html (10,331 bytes)
10. [Towertalk] Guy Anchor Question (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Wed, 4 Sep 2002 14:49:22 EDT; For ONE guywire per anchor; your tower has 2 sets of guys. Cheers, Steve K7LXC TOWER TECH; /archives//html/Towertalk/2002-09/msg00148.html (8,735 bytes)
11. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Wed, 04 Sep 2002 14:04:56 -0500; I don't think that's right. The Rohn drawing indicates 2 sets of guys tied at the same point and the forces shown are for what is on the guy rod itself. Now when you get to the larger towers, of over; /archives//html/Towertalk/2002-09/msg00151.html (9,301 bytes)
12. [Towertalk] Guy Anchor Question (score: 1): Author: Cqtestk4xs@aol.com (Cqtestk4xs@aol.com); Date: Wed, 4 Sep 2002 16:09:01 EDT; << Now when you get to the larger towers, of over 90 feet, then you have problems with screw anchors. >> Not always the case..suppose you are in an area whose perchedwater table rises and falls and o; /archives//html/Towertalk/2002-09/msg00152.html (8,675 bytes)
13. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Wed, 04 Sep 2002 15:18:06 -0500; In that case, I'd agree with you. However, I know where my water table is where I am going to be putting the anchors. In some parts of my back yard, my water table is literally about 2.5 feet from th; /archives//html/Towertalk/2002-09/msg00153.html (9,755 bytes)
14. [Towertalk] Guy Anchor Question (score: 1): Author: ve4xt@mb.sympatico.ca (ve4xt@mb.sympatico.ca); Date: Wed, 4 Sep 2002 16:01:00 -0500 (CDT); Jon, It seems as though this question could be bandied about here ad infinitum. There are a LOT of knowledgeable people on this reflector, and I don't wish to speak ill about any of them, but with so; /archives//html/Towertalk/2002-09/msg00156.html (8,408 bytes)
15. [Towertalk] Guy Anchor Question (score: 1): Author: rrossi@btv.ibm.com (Ron D. Rossi); Date: Wed, 04 Sep 2002 17:17:44 -0400; This has been mentioned here before, but not in quite a while. AB Chance markets a rather varied line of earth anchors and provides substantial documentation on their web site. Holding strength per s; /archives//html/Towertalk/2002-09/msg00157.html (9,203 bytes)
16. [Towertalk] Guy Anchor Question (score: 1): Author: k3bz@arrl.net (Jerry Keller); Date: Wed, 04 Sep 2002 17:32:14 -0400; Mike... your mention of wooden bases interests me greatly... could you describe them more fully? Jerry K3BZ Jon, I have a couple Rohn 25 towers, one of 110' and one of 160' and both are guyed with ha; /archives//html/Towertalk/2002-09/msg00158.html (11,248 bytes)
17. [Towertalk] Guy Anchor Question (score: 1): Author: mjwetzel@comcast.net (Mike Wetzel); Date: Wed, 04 Sep 2002 20:20:33 -0500; Jerry, My wood bases are comprised of 2- 6" x 6" x 4' long treated pieces of wood covered with asphalt roofing compound. The pieces are laid horizontally together, a Rohn base plate is attached to th; /archives//html/Towertalk/2002-09/msg00166.html (14,023 bytes)
18. [Towertalk] Guy Anchor Question (score: 1): Author: k4oj@tampabay.rr.com (Jim White); Date: Wed, 04 Sep 2002 21:47:52 -0400; these are the ones we use - but we set them in concrete...AB Chance stuff has great galvanizing and as mentioned look at what the utilities are using for telephone poles, that's the quality you are g; /archives//html/Towertalk/2002-09/msg00170.html (9,392 bytes)
19. [Towertalk] Guy Anchor Question (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Wed, 04 Sep 2002 21:33:11 -0500; Mike, An interesting setup for sure. To be honest, with a guyed setup, you shouldn't need much of a base if you are on solid ground. I have been convinced by numerous people to use a pier pin assembl; /archives//html/Towertalk/2002-09/msg00172.html (10,161 bytes)
20. [Towertalk] Guy Anchor Question (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 04 Sep 2002 22:33:08 -0400; When I was planning my tower one of the MEs on the reflector gave me a tutorial on how all guy anchors work. The bottom line was that the weight of a concrete anchor is helpful, but the big factor is; /archives//html/Towertalk/2002-09/msg00173.html (8,638 bytes)

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