[TowerTalk] Tower Questions

[Tower2sell@aol.com]

Actually, ASCE-7-1995 and the EIA-222 are not the same. The EIA-222 covers Steel Communication towers and ASCE-7-95 covers just about every other type of structure. You are correct in that The EIA-222 is referenced in most of the major building codes. The main problem is that some of the permit reviewers do not have experiance with the EIA-222 because towers are a rarity for them. In these cases I have to "teach" them thier code. I have even had one request that I furnish a copy of the EIA-222 to them. You would think that they should have copy of all their code references -right? Had to tell them where to buy it for $80.

Their is a movement towards the ASCE-7-95 type winds loads, and Florida seams to be leading the pack with Califorinia always doing the unexpected. This is why the EIA-222 is being revised, so that it can be accepted as an accepted standard. Until revision G arrives, the two codes are very different. With the main difference being the fastest mile verses the 3 second gust.

Tower2sell@aol.com

>The EIA/TIA is actually a standard of practice for an industry to define the minimum level of design and methods of design for the manufacture of the towers for environmental loads. Actually the EIA/TIA uses the ASCE-7 standard for minimum loads for structural design. This ASCE-7 standard also happens to be the basis for much of the wind loading requirements of the above mentioned national building codes.
>

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm