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Re: QUESTION: Effective Length For Angle In Tension AND Compression

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What happens if it fails in compression?  It will simply become a
tension only member.  It may have a lower level of the "feel good"
factor, but it will still work.

Jake Watson, E.I.T.
Salt Lake City, UT

Bill Polhemus wrote:
> 
> Another of my quirky questions:
> 
> If you have an angle acting as a shear collector for a roof diaphragm, and which
> is attached to a masonry (or concrete) shearwall at intervals, theoretically the
> internal force in length of angle between the connectors goes from tension to
> compression as you go from one connector to the next.
> 
> What is the effective length of the angle for computing compression then? Is it
> the full length from connector to connector, or is it the length from the point
> of zero internal force to the "compression side" connector (Effectively,
> one-half of the length)?
> 
> I know this should seem obvious, but my mind is balking at it. To me, this might
> be analogous to saying that a uniformly loaded beam continuous over supports can
> be considered laterally-braced at the point(s) of inflection.
> 

-- 
Jake Watson, E.I.T.
Salt Lake City, UT