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Re: Steel Modulus and Strength

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Great...

So why do we bother with specifying concrete strength of  3000 psi.....we
could just say 2900 psi....or 3100 psi....or somewhere in between......if it
doesn't make any difference anyway.....

All I'm after is a default value to use a in a design software
program.....(oops....it's one that originated in Europe.....where they still
seem to think about the structural mechanisms)...so if anyone has a logical
suggestion (29msi vs 30msi)....I would certainly appreciate it.....

flippant answers certainly don't add anything.....


jim

A few years ago some "professors" would be upset at the notion of strut and
tie mechanisms......


----- Original Message -----
From: "Scott E Maxwell" <smaxwell(--nospam--at)engin.umich.edu>
To: <seaint(--nospam--at)seaint.org>
Sent: Tuesday, July 25, 2000 8:31 PM
Subject: Re: Steel Modulus and Strength


> Does that mean that you don't calculate your reinforced concrete values to
> the nearest .0000001 k-ft?  ;-)
>
> I can just feel my concrete professor getting annoyed with me for even
> suggesting that in jest!  <grin>
>
> Scott Maxwell, PE, SE
>
>
> On Tue, 25 Jul 2000, Roger Turk wrote:
>
> > It doesn't make any difference.
> >
> > It doesn't make any difference.
> >
> > It doesn't make any difference.
> >
> > A. Roger Turk, P.E.(Structural)
> > Tucson, Arizona
> >
> > Jim Korff wrote:
> >
> > >>Is the correct E Modulus for steel rebar 30,000 ksi  or 29,000 ksi ??
> >
> > Is the correct yield strength of  Grade 60 rebar 60 ksi or 58 ksi ??
> >
> > Is the correct yield strength of  Grade 40 rebar 40 ksi or 38.7 ksi ??<<
> >
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