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Re: Steel base plate thickness???

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For an LRFD approach to base plate design, there is an article by Drake and
Elkin in the 1st Quarter 1999 Engineering Journal  (AISC).  It is basically
Blodgett's method with a rectangular stress block limit state approach.

Rick Drake, SE
Fluor Daniel, Aliso Viejo


"Lloyd Pack" <packman(--nospam--at)> on 11/01/99 09:15:47 PM

Please respond to seaint(--nospam--at)

To:   seaint(--nospam--at)
cc:    (bcc: Rick Drake/AV/FD/FluorCorp)

Subject:  Steel base plate thickness???

I'm wanting to get opinions on calculating base plate thicknesses
on moment resisting frames and braced frames.  When in school
I used the text "Steel structures" by Gaylord, Gaylord and
Stalmayer, (I believe).  Anyway, that book has some examples of
base plate design where the plate must transfer moment.  Recently I
was working on a rigid frame in a house, and used the method in
the book to size my base plate. I got a base plate thickness of 2",
which seems rather large.

Which methods do any of you use to calculate the thickness of
your base plates?

When I looked through the AISC ASD Manual I found little help
on the subject?

Are these plates really supposed to be this thick?

Any suggestions and guidance would be appreciated.
Thank you,
Lloyd Pack