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Re: 8x8 & 4x8

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Gordon:
If there are more than one beam try to put them closer.
Another solution is to nail a steel sheet on the 4x8 beam. so yo will not
see the difference.
 you should work out with its thickness as a transformed section to
determine it.

After all, if you feel that a 4x12 wood beam is the best solution try not
with bolts but with some split ring connections.

FABIO ZARATE
ZYZ CONSULTORES
fzarate(--nospam--at)zyzconsultores.com


----- Original Message -----
From: "Samir Ghosn" <sghosn(--nospam--at)harris-assoc.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Tuesday, February 26, 2002 3:52 PM
Subject: RE: 8x8 & 4x8


> This seems really dumb.  You solve one problem to create another.  How
much
> labor will be involved to laminate the beams correctly, how much money you
> save the contractor, why doesn't the contractor build it like the plan.
> Why should any contractor respect any engineer when they know they can
> change the whole desitn and have the engineer approve a fix that was not a
> part of the initial design.  Try to change an architect design and he will
> walk off the job in protest.  Engineers on the other hand will dive head
> first to save the day.  Frankly, If the contractor made his bid to build
> 4x12 beams, I think he should build a 4x12 beam.  Forget this hand
holding,
> crazy notion that we design, then have the contractor build some thing
that
> was not a part of the plan, have us engineers bend backward to fix what
> they screwed up on to find out they are more than likely to screw it up
> agian since the design now calls for more craftsman ship and details than
> the contractor really care to do.
> that my 0,02 cents on it.
> Samir Ghosn, P.E.
> Harris & associates
> At 12:42 PM 2/26/2002 -0600, you wrote:
> >Gordon,
> >
> >Unlike steel, this shear force can become VERY difficult to transfer
within
> >wood members.  Make sure you run all the numbers before agreeing to
> >anything.
> >
> >Dave Nuttall, P.E.
> >Green Bay, WI
> >
> >-----Original Message-----
> >From: Ed Najjarine [mailto:enajjarine(--nospam--at)permasteelisausa.com]
> >Sent: Tuesday, February 26, 2002 12:01 PM
> >To: seaint(--nospam--at)seaint.org
> >Subject: RE: 8x8 & 4x8
> >
> >
> >You can add two beams together as long as you check the horizontal shear
> >between them and connect them accordingly.
> >
> >Ed najjarine, P.E.
> >
> >-----Original Message-----
> >From: Enas, Gordon [mailto:enas(--nospam--at)water.ca.gov]
> >Sent: Tuesday, February 26, 2002 9:43 AM
> >To: seaint(--nospam--at)seaint.org
> >Subject:
> >
> >
> >Hi
> >
> >I am trying to assist a contractor who purchased 8x8 beams instead of the
> >8x12 beam called for in the design.  Is it possible to add a 4x8 to the
top
> >of the 8x8 by gluing and bolting the two members together?  Should the
> >allowable flexural strength be reduced?  Thanks for your help.
> >
> >Gordon
> >
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