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RE: Q: COMPRESSION Force On Anchor Bolts/Rods

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FWIW, I do not think that ACI 318, Section 12.3 really applies. Note that it
mentions specifically "development of deformed bars in compression." A
smooth anchor rod is NOT the "deformed bar" by any stretch, IMO.

Typically the "development length" of an anchor rod is not relevant in the
same way that ACI 318 defines development length. The smooth bar is
considered to have no significant contribution to the pullout capacity of
the anchorage.

William L. Polhemus, Jr. P.E.
Polhemus Engineering Company
Katy, TX, USA
Phone (281) 492-2251
FAX (281) 492-8203
email bill(--nospam--at)

-----Original Message-----
From: Padmanabhan Rajendran [mailto:rakamaka(--nospam--at)]
Sent: Wednesday, December 12, 2001 8:36 AM
To: seaint(--nospam--at)
Subject: Re: Q: COMPRESSION Force On Anchor Bolts/Rods

Bill et al,

This is what I do, when it comes to designing
anchorages in compression. Calculate the cevelopment
length required to transfer compressive forces per ACI
318, Section 12.3. I am comfortable with this approach

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