Maybe I should clarify my question. My question is what grade steel is
normally required for anchor bolts? And what diameter should anchor
bolts for a tower designed for 100 MPH winds be?
Also, the pier/winch bolts I'm looking for are 1/2" diameter, 13-inch
thread and 6 inches long. Same question with the bolts. What grade
steel should I be looking for? The wording in my original post referring
to anchor bolts as ground rods was incorrect.
From: Wendell Wyly - W5FL [mailto:firstname.lastname@example.org]
Sent: Saturday, June 12, 2004 1:11 PM
Subject: RE: [TowerTalk] Galv Steel Anchor Rods and pier/winch bolts
The terminology is not quite right. Ground Rods would be for your
grounding of the tower and normally are 5/8 x 8 ft or 10 ft. Depending
on your soil, they are copper clad or galvanized. Anchor bolts are sold
by any supply house catering to concrete pouring. Most anchor bolts are
sold in black steel finish and come with the washers and nuts. 1/2 inch
is a tiny anchor bolt and is the size used on house foundations to hold
down the base 2x4 for the walls. If your nomenclature means you need a
1/2 inch x 6 inch length anchor bolt it will be bent into a L for a few
inches at the end. If you mean a 1/2 inch x 13 inch with a 6 inch
elbow, that is a longer anchor bolt, but still available as a stock item
from most steel supply places. This size anchor bolt is not designed to
hold very much and simply keeps the bottom of the tower from sliding off
the concrete base. The guys are the main stabilizing forces for the
tower. Aluminum towers are inherently very weak and easy to bend so be
very careful with the tower. Follow all directions for dis-similar
metals so you don't cause corrosion. Inspect the tower very carefully
for corrosion, and don't use it if you find enough to weaken the tower.
[mailto:email@example.com] On Behalf Of Noel
Sent: Saturday, June 12, 2004 1:20 PM
Subject: [TowerTalk] Galv Steel Anchor Rods and pier/winch bolts
I need to buy 4 anchor rods and some 1/2" X 13 X 6" steel bolts for a
60' tower I plan to install. I'd rather exhaust my local sources before
I order from distant places. But while I have the installation manual
for the tower, it doesn't tell me what grade steel I should be looking
for. Anyone know what grade steel is suitable to use for anchor rods,
and pier/winch bolts. I know I want hot-dipped galvanized steel and I
know the size bolts but that's it. I'm also curious about the diameter
the ground rods should be? Anyone have knowledge of this sort of thing
I'd appreciate any info that might make my search easier.
Some background on the tower. The tower is a 60' aluminum guyed tower
and was made to support a rotatable log period antenna called the LPH-1
sold by Antenna Products out of Mineral Wells, Texas. I'm not putting as
large an array on the tower, as it was designed for, but I'm trying to
install the tower to the same specs, so if I decide to upgrade to a
larger antenna later, I don't have to worry. I've called and email
Antenna Products to try and buy the hardware from them, but so far
they're slow to respond. Anyway I have almost everything I need to put
this tower up except the ground rods and anchor/winch bolts which all
get incased in concrete.
Thanks in advance.
West Haven, UT
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
any questions and ask for Sherman, W2FLA.
TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
TowerTalk mailing list