Guy tensions

[reddd]

300' all weld tower. (question),
spec tension for 7/16" galv. guy strand.
elevation-180'
rad.-63m
temp.20 degrees celsius

 

The initial tension for guy wires for guyed towers is normally 10 percent of the breaking load of the tendon, with upper and lower limits of 15% and 8%. This is based on the TIA/EIA-222-F "Structural Standards for Steel Antenna Towers and Antenna Supporting Structures". Assuming that your 7/16 in. guy is EHS 7-wire strand (extra high strength), the breaking load would be 20,800 lbs, so the preload would be 2080 lbs.

 

[ergon]

Could someone explain the acronym TIA/EIA-222-F "Structural Standards for Steel Antenna Towers and Antenna Supporting Structures" and where I can obtain a copy. It is not available from Amazon.com. I am interested in their calculation of guy tension using a tangential line of sight from the base of the guy to the mast.

 

[IRstuff]

TIA - Telecommunications Industry Association
EIA - Electronic Industries Associations

The document should be available from IHS Global

TTFN