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Re: fem & caissons

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I recently used RISA 3D (demo) to model an elevator shaft with outriggers.
It seems to work well; the answers appear correct and the behaviour is well
represented.  The learning thereof was also easy.

Thor Tandy  P.Eng  MCSCE
Victoria BC
Canada
vicpeng(--nospam--at)vtcg.com

-----Original Message-----
From: Mark D. Baker <shake4bake(--nospam--at)earthlink.net>
To: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Date: Thursday, May 13, 1999 3:36 PM
Subject: Re: fem & caissons


>
>
>Lanny J. Flynn wrote:
>
>> I haven't used Risa 3d, but piles can be modeled using horiz springs
spaced
>> at say 1ft vertically with the spring stiff based on the the soil mod the
>> geotech gives you (or should give you).
>
>This is what we are trying, I question how we should deal with the curved
>surface of the round pile. Should all the spring stiff. be the same
considering
>the horiz. projected area of the pile or should the spring stiff. be
reduced as
>you travel around the 1/2 circumf. of the pile?
>
>Regards,
>
>Mark
>
>
>