Need a book? Engineering books recommendations...
RE: ACI 318-02 Appendix D[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: ACI 318-02 Appendix D
- From: "Garner, Robert /SD" <rgarner(--nospam--at)moffattnichol.com>
- Date: Fri, 19 Nov 2004 14:56:18 -0800
Title: ACI 318-02 Appendix D
From: Bruce Holcomb [mailto:bholcomb(--nospam--at)brpae.com]
Sent: Friday, November 19, 2004 2:52 PM
Subject: ACI 318-02 Appendix D
I have been asked to verify an anchor bolt design based on IBC 2003 which has either the ASD table in section 1912 or the strength design approach of section 1913 which basically just references ACI 318-02 Appendix D. I typically design anchor bolts and base plates in accordance with AISC Design Guides 1 & 7, so I need to get up to speed quickly on Appendix D of ACI 318-02.
My main question is, how does Appendix D account for the vertical reinforcing in a concrete pedestal?
Long story short... I have a reinforced concrete pedestal on an individual column footing for a fixed-base column. My anchor bolts are 1¼" diameter by 30" embedment, which puts the nut at the bottom of the anchor bolt below the bottom of the pedestal and in the footing. I can draw failure planes and explain that I am using the tensile strength of the rebar to transfer the load into the footing, but I am being asked by a plan reviewer to verify by Appendix D.
I remember reading somewhere that 12*AB diameter embedment in 3000 psi concrete provides strength = anchor bolt yield. Of course, this is for the case where the anchor bolt is not near an edge of concrete. I think this was in an AISC publication... can anybody help me find this?
Bruce D. Holcomb, P.E., S.E.
Butler, Rosenbury & Partners
300 S. Jefferson, Suite 505
Springfield, MO 65806
Architecture, Engineering, Interior Design, Planning & Development
Your Vision. Our Focus.
|The information contained in the e-Mail, including any accompanying documents or attachments, is from Moffatt & Nichol and is intended only for the use of the individual or entity named above, and is privileged and confidential. If you are not the intended recipient, be aware that any disclosure, dissemination, distribution, copying or use of the contents of this message is strictly prohibited. If you received this message in error, please notify us.|
- Prev by Subject: ACI 318-02 Appendix D
- Next by Subject: RE: ACI 318-02 Appendix D
- Previous by thread: ACI 318-02 Appendix D
- Next by thread: RE: ACI 318-02 Appendix D