On Tue, Sep 23, 2008 at 7:50 AM, David C. Kerber <
[EMAIL PROTECTED]> wrote:

>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of evan foss
> > Sent: Monday, September 22, 2008 11:55 PM
> > To: gEDA user mailing list
> > Subject: Re: gEDA-user: [OT] MIT Flea
> >
>
> ...
>
> > >  >> On behalf of the Bostonians on the list let me say
> > thanks for your
> > > >> contribution  >> to the Big Pig er.. I mean Big Dig ;-)
> > >  > Good
> > > one.
> > >  > I still want to know who looks at a multi ton concrete
> > panel with a
> > > > bolt and thinks lets glue this.
> > >
> > >
> > >    A contractor looking to increase his profit margin.
> >
> > Yea nuts are expensive. The other day I needed as stainless
> > steel one that cost a whole dollar. So much more than a life
> > or lawsuit are worth.
>
> Keep in mind that embedding the nuts in the concrete tunnel wall so that
> they were in the correct spot to hang the panels from would be VERY
> labor-intensive.  What I really don't understand is why the suspended panels
> needed to be concrete at all?  Wouldn't something much lighter like
> fiberglass work just as well?


IIRC these were originally specified as aluminum panels but were changed to
concrete  for cost savings.

(* jcl *)


-- 
http://www.luciani.org

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