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Tower design

Tower design

Tower design

Is anyone in the forum familiar with ANSI EIA/TIA-222-F/G?  Is this standard only used for the large lattice-type towers or for any structure supporting communication equipment?

My situation is that we are designing a communications system in which we will have cameras and antennae at the top of 40' and 100' poles.  We designed these poles according to the "AASHTO Standard Specification for Highway Signs, Luminaires, and Traffic Signals", thinking that these are fairly similar to a pole with a luminaire at the top.  Someone on the project now says that we need to design according to the ANSI standard, which they said uses higher wind loads.

I don't agree,as I believe the ANSI standard only applies to towers.  I was trying to find out a little more about the ANSI standard, if possible, before forking over the $361 it cost to purchase it.  Any help that you can give me would be appreciated.

RE: Tower design

There's been a few discussions on tower design and/or software in the last few months that may help.  Here's on of them.



RE: Tower design


You might want to go to the c-concepts website and browse through their manual for ERITower.  There's more to look at in the download section including a design manual for monopole bases.  I found it to be pretty interesting.



RE: Tower design

Thanks for the info, MrMikee.  I'll take a look at that site.  Anyone else out there actually have a copy of the ANSI standard?

RE: Tower design

TIA/EIA-222-F states under the Objective:

These standareds apply to steel antenna towers and antenna supporting structures for all classes of communications service, such as AM, CATV, FM, Microwave, Cellular, TV, VHF,etc.

The standard applies to pole type structures as well as lattice towers.

RE: Tower design

Thanks, jmiec.  That's what I was looking for.  Sounds like we should order the document.  Do you know if there is anything in there regarding maximum allowable deflections?  Thanks.

RE: Tower design

Yes, Parabolic Antennas, Passive Reflectors and Periscope system Reflectors have limitations for twist and sway, unless the manufacturer specifies otherwise.

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