The max wind combined guy loads for a 100' tower can be around 4000# downforce on the tower base (plus the tower weight) so something more than 1" delrin will be required between the legs. That amoun
I have four 60 foot 25G towers that have a solid rod of fiberglass in each leg. These towers were in guyed for several years in a pretty harsh environment on top of a mountain. After having grade. 8
Stan, So you use 3/8 fiberglass rod into each leg and the rods go into the concrete? If you have photos, that would be helpful. 73, Gordon, W2TTT 201.314.6964 Sent from Samsung tablet -- Original mes
Pardon me, but this looks like a disaster watching for a place to happen. Bill--W4BSG --Original Message-- From: w2ttt@att.net Sent: Monday, September 01, 2014 11:22 AM To: Stan Stockton ; Grant Savi
Which scenario, Stan's or Gordon's? Gordon didn't understand Stan's (obviously). Stan is shearing grade 8 bolts with fiberglass (leg) rod (c. 1-1/8" or so) in an unguyed situation, which kind of prov
Steve-- I think YOU didn't understand what was said. Gordon, (I think) said: " So you use 3/8 fiberglass rod into each leg and the rods go into the concrete?" (Direct cut-and-paste) That is NOT guyin
Sheesh. I understood it EXACTLY. No one is going to use 3/8" rod for leg insulators, no matter what silly misunderstanding occurred here. -Steve K8LX Steve-- I think YOU didn't understand what was sa
Gordon, No, sorry for misunderstanding. Here is what I said regarding the 3/8 rod... "After seeing the towers bend in about a. 60 mph wind, I used 3/8 fiberglass rod to guy them to small, homemade an
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 02 Sep 2014 02:08:17 -0400
What do thy do to protect the fiberglass from moisture and UV? 73 Roger (K8RI) -- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _____
By "interesting read" I assume you mean Kurt's analysis. I'm not sure there is a simple answer to your question other than for a given tower section strength, a pier pin base has 40 to 50% more wind
Your fiberglass inserts were amazingly strong to hold up 60' of freestanding Rohn 25g! I would not try that using a standard base. Are there different strengths of fiberglass material? John KK9A Gord
John, I have no idea. What I do know is there is not a lot of wind load on a 60 foot tower with no antennas on it and that it would take a tremendous amount of force to break a single four inch long
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 03 Sep 2014 01:30:01 -0400
Fiberglass "lay ups" come in a wide variety of strengths, or it is probably more accurate to say the strength of fiberglass components varies widely, It depends on the density of the weave, the angle
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 03 Sep 2014 03:12:00 -0400
I forgot to say, we often use a synthetic cloth over the last lay up, called "Peel Ply". After the last lay up cures, you simply peel the cloth off and it's ready for the next layer.Also, wiping down