Cracking of an Existing Concrete Wall by drilling Anchors in it
Cracking of an Existing Concrete Wall by drilling Anchors in it
(OP)
I need some help. We are analyzing an existing tank wall from 1973. It is 16" wide and 21' tall. It is part of a wastewater tank. We are designing a shoring system to add a wall on the other side of the wall. We have to drill 1 3/4" diameter holes, 10" deep in it for 1 1/4" anchors. The reviewing engineer believes this will cause the wall to crack. There is enough shrinkage and temperature steel in the wall.
Has anyone ever heard of a wall cracking because someone drilled some holes in it and added anchors to it?
Has anyone ever heard of a wall cracking because someone drilled some holes in it and added anchors to it?






RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
www.PeirceEngineering.com
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
It sounds like the engineer may be categorically disapproving the use of the anchors for some reason.
One in the hand is worth two in the bush.
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
"Talk to Hilti Tech Support."
Call them.
I deal with Hilti all the time and they normally give good answers. All depends if you want to use their anchors (say you do).
2)
"Has anyone ever heard of a wall cracking because someone drilled some holes in it and added anchors to it?"
I've had this happen.
Need to get in contact with the EOR. If you cant, you need to assume worst case scenario I'd assume.
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
Seems much too large a gap for epoxy-bonding (which WON'T put an additional tension stress into the wall), and too loose for a regular expansion-bolt anchor.
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
Dik
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
www.PeirceEngineering.com
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
Maybe pitch through bolting for sport.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it
Mike McCann, PE, SE (WA)
RE: Cracking of an Existing Concrete Wall by drilling Anchors in it