I'm as confused as he is.... I suspect you're talking about the amount of stress the tower will put on the guy wire, not the initial tension. The install diagram for a 120FT 45G shows the initial tension at 399# for the 3/16's and 665# for the 1/4. Rounding, you're talking around 1465 lbs of initial tension. Assuming a 1:10 typical ratio, this is probably going to be around 11,465 LBS of pull.
On Sat, Sep 29, 2018 at 9:37 PM Lewis Bergman <[email protected]> wrote: > Read the whole post > > On Sat, Sep 29, 2018, 10:14 PM Craig House <[email protected]> > wrote: > >> Lewis >> What instructions do you have that says 80% of breaking strength? >> Everything I have ever seen says 10% and the 3/16 wire is 4000#. I still >> overtighten to about 20% to make it feel secure and it usually stretches >> and after a few temp changes it ends up being around 15% of the tensile >> strenghth? I have never tightened to 80%. That being said I still would >> have the concerns about the pipe bending. I am going to back anchor the >> pipe and I am going to put some Sonnet tube over it and put concrete up the >> pole as well for at least 1/2 of the height of the pipe. I have used >> beam's before as well but I think this pipe I got is actually more rigid >> than the I beam I used in the past. >> >> ------------------------------ >> *From: *"Lewis Bergman" <[email protected]> >> *To: *"AnimalFarm Microwave Users Group" <[email protected]> >> *Sent: *Saturday, September 29, 2018 8:18:47 PM >> *Subject: *Re: [AFMUG] Anchor holes >> >> >> You are supposed to tension guys at 80% of breaking tensil strength. On >> 120 foot 45g that is likely a 1/4 inch guy on top. Maybe 3/16 on the other >> 3. >> That and probably 5600 pounds on the top guy and 4400 or so on the >> others. That means there will be almost 19,000 pounds of pull on that guy >> point. If you only want the tower for a few years, don't change anything. >> If you want it longer, I would ditch the pipe, but some 12 inch I beam. Cut >> the top at a 60 degree angle punch 4 holes. Leave the top flange long, bend >> it over at 45 degrees and punch 2 holes on it. >> But if course it is your show. If you give Rohn the info and what you >> want to do they will give you an engineered solution in a week for free. >> >> On Sat, Sep 29, 2018, 6:55 PM Craig House <[email protected]> >> wrote: >> >>> Planning on putting a sonnet tube over the outside with rebar and >>> reinforcing at some on the outside as well >>> >>> Sent from my iPhone >>> >>> > On Sep 29, 2018, at 18:49, Seth Mattinen <[email protected]> wrote: >>> > >>> > On 9/29/18 4:29 PM, Craig House wrote: >>> > > It’s 120 foot tall 45G Tower. I’ve already purchased and had the >>> pipe >>> > > welded for planning on putting it in the holes on Monday if I can >>> get >>> > > the holes dug >>> > >>> > >>> > I guess if you're committed to pipe at least fill it with concrete. >>> > >>> > -- >>> > AF mailing list >>> > [email protected] >>> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> -- >>> AF mailing list >>> [email protected] >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- *Forrest Christian* *CEO**, PacketFlux Technologies, Inc.* Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 [email protected] | http://www.packetflux.com <http://www.linkedin.com/in/fwchristian> <http://facebook.com/packetflux> <http://twitter.com/@packetflux>
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