Anchor Bolt Embedment
Anchor Bolt Embedment
(OP)
I am trying to find the calculation to figure out the minimum embedment needed. A project of ours has had the foundations poured and the GC noticed that all the Anchorbolts are extending anywhere from 5-1/2" to 8-1/2" above finished grade when only 3" was specified. All Bolts were suppose to be 1'10" embedment and know they are not. How do I go about figureing out if the 1'10" was the minimum depth needed. I normally dont deal with the anchor bolts but the guy that does is on vacation.
If you have any information I would appreciate it.
Thanks
If you have any information I would appreciate it.
Thanks






RE: Anchor Bolt Embedment
Another thought, with the bolts that high, how will you tighten the bolts to the steel or wood plate? Usually anchor bolts are not threaded the full lentgth unless they are threaded rod.
Mike McCann
MMC Engineering
RE: Anchor Bolt Embedment
RE: Anchor Bolt Embedment
RE: Anchor Bolt Embedment
Mike McCann
MMC Engineering
RE: Anchor Bolt Embedment
RE: Anchor Bolt Embedment
Dik
RE: Anchor Bolt Embedment
RE: Anchor Bolt Embedment
They are J bolts and in some areas have uplifts of of 35 kips. The main area I am concerned with has a 30 ton crane as well as a 15 ton crane next to it. In these areas the base plate distance from center to center is only 18". There is also anywhere from 1/2" to 1" bolts throughout the building.
Does anyone have a "easy button" just lying around.
RE: Anchor Bolt Embedment
Like the good advise given before; you'll have to check with the contractor on the overall lengths of the bolts ordered and calc you embedment strength based on ACI 318-Appx D. Also you may want to verify the grade of anchor bolt used and check it against your up lift requirements. The contractor should be able to tell you what grade of anchor bolt was installed.
I lent out my "easy button" and it wasn't returned.
RE: Anchor Bolt Embedment