Ice Determination for Antenna Towers

[TowerSE]

Does anyone know if the load due to ice for antenna towers is only applicable to elements that have a vertical projected area, or does it apply to all surfaces. An example would be for a monopole structure. Does one have to assume icing on the entire vertical of the structure, or only on the "cap" of the pole?

 

[Santiagj]

Does anyone know if the load due to ice for antenna towers is only applicable to elements that have a vertical projected area, or does it apply to all surfaces. An example would be for a monopole structure. Does one have to assume icing on the entire vertical of the structure, or only on the "cap" of the pole?

Icing would have to be applied to the entire structure. This includes the equipment (platforms, dishes etc).

 

[Guest]

^^^ Wow .. that sounds like the icing on the cake!

On a serious note, where does this specification/standard come from?

Thanks.

JR

 

[Paul S]

ASCE 7-05, section 10.4.1

"The ice load shall be determined using the weight of glaze ice formed on all exposed surfaces of structural members, guys, components, appurtenances, and cable systems"

 

[McEngr]

ASCE 7-05, section 10.4.1"The ice load shall be determined using the weight of glaze ice formed on all exposed surfaces of structural members, guys, components, appurtenances, and cable systems"

TIA/EIA also has standards on this. To add to the complexity, the ice thickness in rev. G says that it increases with height above 33 feet.