Chuck:
Per Rohn, the HDBX-48 will need the BXB8 stub section to go into the concrete.
For the BXB8 section, the hole dimensions are:
5'-9" square X 3'-6" deep taking 4.9 yds of concrete. (Note that 6'" of the
concrete stick up above the ground level for a total concrete depth of 4 ft.)
The rebar is placed 3" below the top surface of the concrete and 3" above the
bottom surface of the concrete. The Rohn book states: "No. 3 bars 12" O.C.
each way top and bottom or a welded wire fabric of equivalent steel area."
Suggest you invest in a Rohn spec book -- handy to have around to show a
building inspector, etc. --
GL
Val
W5PUT
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|