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Re: Alguem fala português ou Espanhol

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Olá rui!
Sou Engenheiro Brasileiro, Estou ao seu dispor.


Eng. Silenio Marciano de Paulo
-----Mensagem original-----
De: rui cunha <ruiacunha(--nospam--at)hotmail.com>
Para: seaint(--nospam--at)seaint.org <seaint(--nospam--at)seaint.org>
Data: Quarta-feira, 4 de Outubro de 2000 19:48
Assunto: Alguem fala português ou Espanhol


>
>
>
>>From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
>>Reply-To: seaint(--nospam--at)seaint.org
>>To: seaint(--nospam--at)seaint.org
>>Subject: RE: Reinforcing for a Metal Building System Slab-on-Grade
>>Date: Tue, 3 Oct 2000 11:05:53 -0500
>>
>>Dave,
>>
>>There was a guideline that was developed for Butler Manufacturing called
>>"Foundation Design and Construction Manual".  It was developed by the
>>people
>>at Computerized Structural Design, Inc. They developed a methodology that
>>given a thrust magnitude calculates the length of hairpin required for a
>>given mesh.  You have to transfer the forces from the hairpins into the
>>mesh.  The mesh then either uses the slab in friction to resist the thrust
>>or ties the 3 hinged arch together.
>>
>>The UBC 1907.12 values are for slab shrinkage only, and have nothing to do
>>with the applied lateral thrust.
>>
>>There is no real code guidance here.  You will just have to use first
>>principles.  You will have to develop the reinforcing required based on
>>acceptable performance (crack acceptability), and calculate the flexural
>>reinforcing, the temperature / shrinkage reinforcing, and the reinforcing
>>required to develop the thrust in the hairpins.
>>
>>Engineering unencumbered by the whims of code moguls.
>>
>>Regards,
>>Harold Sprague
>>
>>
>> -----Original Message-----
>> From: Dave Adams [SMTP:davea(--nospam--at)laneengineers.com]
>> Sent: Friday, September 29, 2000 5:55 PM
>> To: seaint(--nospam--at)seaint.org
>> Subject: Reinforcing for a Metal Building System
>>Slab-on-Grade
>>
>> Hello all,
>>
>> I apologize if this is a discussion that has been brought up before.
>>
>>
>> What minimum amount of reinforcing meets Code requirements when
>>hairpins are
>> present in a slab-on-grade with, perhaps, fork lift traffic but no
>>heavy
>> storage rack leg loads? It seems that it would be appropriate to at
>>least
>> provide enough steel required to transfer the hairpin forces and tie
>> everything together (possible unequal distribution of support for
>>forklift
>> loads, etc.), but is there a need to consider the minimums per
>>Section
>> 1907.12 as applicable?
>>
>> This may be one of those "bonehead" questions, but I'd like to know
>>what the
>> consensus is (if there is one).
>>
>>
>> TIA,
>> Dave K. Adams, S.E.
>> Lane Engineers, Inc.
>>
>>
>~
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