ACI Appendix D, Abrg

[ARLORD]

In ACI 318-05 Appendix D, Sections D.5.3.4 and D.5.4.1 the term Abrg is mentioned, but I don't see it defined other than in Chapter 2. Am I missing something. What is the equation for Abrg?

 

[JStephen]

I'm thinking ALL the variables are defined over in the front of ACI-318, which can make it a little awkward, sometimes. I assume Abrg would be the bearing area on a headed anchor bolt.

 

[JAE]

Yes, it is the net bearing area of the head - discounting of course the shaft of the bolt.

 

[Lion06]

It could also be the bearing area of the plate if you need to use something larger than the nut or head of a headed rod.