Effective length in anchor bolts embedded in concrete.
Effective length in anchor bolts embedded in concrete.
(OP)
I am dealing with a bolt-ring consisting of 24 bolts. The bolts are D=30mm and about 1 meter long and embedded in concrete and are welded fast at the bottom end (the concrete is clamped between two bolt-rings). I need to pretension the bolts and I am wondering what the effective length of the bolts would be. The reason I need the effective length is because I am thinking of pretensioning the bolts by measuring the elongation when the nut is tightened.
The bolts have no threads on the part that is embedded in concrete.
If anyone have been in a similar problem and can give me some advise it would be greatly appreciated.
I picture of the bolts embedded in concrete can be seen here
ht tp://img59 .imageshac k.us/img59 /7892/pict urezb5.jpg
The bolts have no threads on the part that is embedded in concrete.
If anyone have been in a similar problem and can give me some advise it would be greatly appreciated.
I picture of the bolts embedded in concrete can be seen here
ht





RE: Effective length in anchor bolts embedded in concrete.
RE: Effective length in anchor bolts embedded in concrete.
RE: Effective length in anchor bolts embedded in concrete.
I have seen this is some standards. If so it would be
as civilperson suggests except one bolt length would be
added to the length.
RE: Effective length in anchor bolts embedded in concrete.
RE: Effective length in anchor bolts embedded in concrete.
or plus 30mm in your case. This assumes the
effective length penetrates into the head 15mm
and into the concrete 15mm.