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Re: 60,000 psi limit on Reinforceing bars

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What if  I  use 5000 psi or even 7000 psi
concrete?

Alex C. Nacionales, C.E.


Michael Valley wrote:

> On Thu, 18 Jun 1998 04:47:18, Alex C.
> Nacionales wrote:
> > I do not understand the 60,000 psi  yield
> point
> > limit on the concrete  reinforcing bars.
> > Can some please give me a reason for this.
> > Some bars tested on my projects reached more
>
> > than 60,000 psi  before it yielded.
>
> ACI 318-95 allows higher yield reinforcement
> (for non-seismic
> applications) per 3.5.3.2.
>
> The commentary to ACI 318-95 section 21.2.5
> explains why the yield
> stress is limited for seismic applications.
> The concerns center on
> the potential for limit states controlled by
> shear or bond failure.
>
> - - - - - - - - - - - - - - - - - - - - - - -
> - - - - - - - - - - - - - -
> Michael
> Valley
> E-mail: mtv(--nospam--at)skilling.com
> Skilling Ward Magnusson Barkshire
> Inc.                  Tel:(206)292-1200
> 1301 Fifth Ave, #3200,  Seattle  WA
> 98101-2699          Fax:        -1201
>
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