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Anchors & Enercalc

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ACI 318 D is bad enough.  Then, for the epoxy anchors, it is ICC ESR 2322.  Then, IBC/CBC added additional factor of 0.75 to ALL anchors in SDC C-F.  Imagine the result...
ACI 02 and 05 versions of App. D appear about the same, but the some formulae appear renumbered, so I had to go through that.
PCA Strength Design of Anchorage to Concrete seems to be the basis for all of these, so I used it as a reference.  Don't toss it out yet... 
Now, here is a BIG question (I am 50-to-100% lost in all that):
It seems that I saw it somewhere that for the purposes of anchorage, ALL concrete in SDC D is supposed to be assumed cracked.  I cannot find it now, but I think I saw it.  Can anybody straighten me out?
By the way, I got my Enercalc yesterday night. I did not have a chance to play with it long enough.
V6 appears to be very nice in terms of graphics and improved interface.
However, V6 is more limited in scope than V5.8. For example, not there:
  • beam on elastic foundation;
  • combined footing;
  • retaining wall design - completely out (it is suggested to by RetainPro for $149). 
Apparently, some modules (but not retaining walls) will be added eventually.
Finally, it looks like I cannot install V6 on both my desktop and laptop. This would be a serious limitation to me.  
V. Steve Gordin, SE
Irvine CA
----- Original Message -----
From: Bill Allen
Sent: Thursday, January 17, 2008 09:56
Subject: RE: Anchors

Steve ?


I feel your pain.


However, I think we need to correctly identify the culprit. Is it IBC2006; is it ACI 318 Appendix D or is it AC193 (and its cousin AC308)?


BTW, are there any differences between ACI 318-02 Appendix D and ACI 318-05 Appendix D? I?ve already realized I can toss out my Strength Design of Anchorage to Concrete (PCA) book.


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


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

-----Original Message-----
Steve Gordin [mailto:sgordin(--nospam--at)]
Sent: Wednesday, January 16, 2008 2:09 PM
Subject: Re: Anchors




May be some of the people who actually came up with these changes will make their reasoning known to the engineering community?






V. Steve Gordin, SE
Irvine CA