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RE: High Mast Light Pole Anchor Bolts

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Rich,

 

If the grout has cracked and there is clearance for the washer to slide, then maybe loading has crushed the grout and stretched the bolt. Therefore may not be fit for re-use. If that is the current weakest link, then fixing, may then lead to the HAZ becoming the weakest link, and future cracking of the pole: as indicated in the article. Also if the grout bed is too thin as you suggest, then fixing will probably mean the installed bolts will be too short.

 

Here most of the light poles are bolted flange to flange. A stub column is embedded in the ground, with a flange a top, then the pole flange is bolted to that. Keeps bolts off the ground, above poorly maintained pavements and pooling water, and probably better weather seal for the incoming underground electrical cables. If corrosion does occurs at ground level then only the stub column needs to be replaced. Though probably a limit on the practical diameter for such approach.

 

Regards

Conrad Harrison

B.Tech (mfg & mech), MIIE, gradTIEAust

mailto:sch.tectonic(--nospam--at)bigpond.com

Adelaide

South Australia