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Re: Warping Constant

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Cw for a single angle is:

((Vleg - 0.5tf)^3 + (Hleg - 0.5tf)^3) * tf^3 / 36

Cw for a double angle is 2 times that value.

Allen Adams
RAM International

At 12:00 AM 10/24/98 -0700, you wrote:
>From: "DAVID N. MARTIN, P.E" <dnmme6622(--nospam--at)>
>To: Seaoc <seaoc(--nospam--at)>
>Subject: Warping Constant
>Can anyone tell me or direct me to a reference so I may calculate the
>warping constant (Cw) for double angles. I am trying to verify some
>computer results, for LRFD specification. I can duplicate the values
>tabulated in LRFD 1st edition, but not the second edition. For some
>reason the values are differant for short members. This occurs where
>flexural torsional buckling is checked.