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RE: concrete embedments interaction equation

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Just got back into the office from this morning.  “Notes on ACI 318-02 Building Code Requirements for Structural Concrete”, which is put out by the PCA.  The section relating to Anchoring to Concrete is in the back, Chapter 34.



Joseph R. Grill, P.E. (Structural)

Shephard - Wesnitzer, Inc.

Civil Engineering and Surveying

P.O. Box 3924

Sedona, AZ  86340

PHONE (928) 282-1061

FAX (928) 282-2058



-----Original Message-----
From: Nels Roselund [mailto:njineer(--nospam--at)]
Sent: Wednesday, March 29, 2006 10:02 AM
To: seaint(--nospam--at)
Subject: RE: concrete embedments interaction equation




Where do you find the notes on ACI318-02 that you refer to?


Nels Roselund, SE

South San Gabriel, CA


From: Joseph Grill [mailto:jrgrill(--nospam--at)]
Sent: Tuesday, March 28, 2006 6:06 PM
To: seaint(--nospam--at)
Subject: concrete embedments interaction equation


I'm a little confused (as I am most ot the time :-) ).  ACI 318 section D.7 contains some criteria for interaction equations for anchors or groups of anchors subject to both shear and axial loads.  Notes on ACI 318-02 don't use the interaction equations if the tension on the anchors is due to tension from say a moment at the base of a connected part.  It appears the equations are only used if the tension is a result of a direct axial tension load from the connected part.  Am I seeing this correctly?


Joseph R.Grill