Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: ACI 318 App D, and wedge anchors

[Subject Prev][Subject Next][Thread Prev][Thread Next]
There are more.  I personally like the undercut bolt mechanical post installed bolts.  Hilti has one and so does USP.  Both have the appropriate ESR's for cracked and uncraced concrete. 

Harold Sprague

From: T.W.Allen(--nospam--at)
To: seaint(--nospam--at)
Subject: RE: ACI 318 App D, and wedge anchors
Date: Wed, 30 Jul 2008 09:15:43 -0700

I believe there are only two that are approved. They would be the Simpson Strong Bolt and the Hilti TZ Quik Bolt.


The list has indeed shrunk.


The manufacturers are not standing by. It’s expensive and time consuming to do the cracked concrete test in an outside lab for all the various conditions according to the current ICC acceptance criteria.


T. William (Bill) Allen, S.E.


Consulting Structural Engineers
V (949) 248-8588 F(949) 209-2509

-----Original Message-----
From: Mark D. Baker [mailto:shake4bake(--nospam--at)]
Sent: Wednesday, July 30, 2008 9:00 AM
Subject: ACI 318 App D, and wedge anchors


I admittedly have not dug that far into appendix D and am seeking a quick answer from those who have.


An architect told me last week that on a project where anchoring equipment to a concrete slab the plan checker advised that wedge anchors were no longer allowed by ACI 318……….can this be possible?


I can’t imagine the manufacturers of mechanical anchors ($$$$$$$$) standing by while something like this got written into code.


Mark D. Baker

Baker Engineering






With Windows Live for mobile, your contacts travel with you. Connect on the go.