[TowerTalk] Guy Anchor

[Mark Robinson]

I am looking at the guy anchors for my Rohn 45 tower. The Rohn catlaog calls 
out an AB2 hole which is  a 6 foot long by 4 foot by 4 foot hole. The Rebar 
cage is made up from 10  #6 rebar rods held together with 5 rods on the 
lower lever and 5 on the higher level. These rods run the length of the 
hole. The levels are 1 1/2 feet above each othert and held together by #3 
stirrups. My question is how far should the rebar cage be kept away from the 
edge of the hole. I believe that rebar too close to the edge of the concrete 
block will corrode and crack the concrete. Is this true?

So if the hole is 6 feet long then should the #6 rebar be 5 foot 8 inches 
long to allow 4 inches either side of the end of the hole.


73 Mark N1UK