[CAUT] killer shanks

[Chris Solliday]

Thanks for clearing that up Ron, but they do sound good.
Chris Solliday
----- Original Message ----- 
From: "Ron Nossaman" <rnossaman at cox.net>
To: "College and University Technicians" <caut at ptg.org>
Sent: Saturday, May 19, 2007 1:35 PM
Subject: Re: [CAUT] killer shanks


> > Yes I taper/channel the whole set and sort by weight. I am told that the
> > stiffening is akin to I-beam construction but I am not an engineer so
> > consider that hearsay.
>
> Heresy, actually. There's no way you will stiffen a beam by
> removing material, unless you replace the removed material on
> a different part of the beam. It will always become more
> flexible. I beams are not as stiff, much less stiffer than
> solid beams of the same outside dimensions. I beams are a
> means of getting a high degree of stiffness with a minimum of
> material - a higher stiffness to weight ratio, sure, but not
> increased stiffness. It keeps the material cost and weight as
> low as is practical for tall building construction. Tubing is
> probably better, but tougher to assemble in building structure.
>
> Ron N
>
>