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Re: SEAOC Design Manual Vol 3 Example 4 design question:

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John,

Please define "yield mode" ...

jim
sci
----- Original Message -----
From: "Jon Brody" <brodyjon(--nospam--at)hotmail.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Thursday, November 16, 2000 4:33 PM
Subject: Re: SEAOC Design Manual Vol 3 Example 4 design question:


> The code check is written for comparison with the "nominal shear
strength",
> which is the definition of "Vn" as defined in the UBC.  I think the point
of
> the provision is to prevent brittle failure caused by failure of the
> concrete in compression (the compression "strut"); it's a yield mode
issue,
> so the phi factor isn't considered.  It's limiting the amount of shear
> strength that can be added due to shear steel, not the allowable overall
> shear stress value.
>
> Jon Brody, C.E.
> Principal
> Jon Brody Consulting Engineers
> 1045 Sansome Street, Suite 200
> San Francisco, CA  94111
> (415) 296-9494
> (415) 296-9499 fax
>
>
> >From: "Rodriguez, Marlou" <mrodriguez(--nospam--at)BiggsCardosa.com>
> >Reply-To: seaint(--nospam--at)seaint.org
> >To: 'SEAINT Newslist' <seaint(--nospam--at)seaint.org>
> >Subject: SEAOC Design Manual Vol 3 Example 4 design question:
> >Date: Thu, 16 Nov 2000 08:50:16 -0800
> >
> >Turning to Page 229 of the Seaoc Design Manual Vol 3, Example 4
"Reinforced
> >Concrete Wall".
> >
> >When comparing phi*Vn with the max per UBC 1921.6.5.6  8*Acv*sqrt(f`c),
Phi
> >was not applied to the Max allowed.
> >
> >Can someone explain why phi was not applied,
> >
> >Thanks
> >
> >*************************************************************
> >Marlou B. Rodriguez
> >Biggs Cardossa Associates Inc.
> >Structural Engineers
> >1871 The Alameda, Suite 200
> >San Jose, California 95126
> >408-296-5515 Fax 408-296-8114
> >
> >Note:  The opinions that I write are my opinions and
> >are not necessarily the opinions of BCA.
> >*************************************************************
> >
> >
>
>
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