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# RE: Cold-Formed Joist Lap Splice Question...One more time

• To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
• Subject: RE: Cold-Formed Joist Lap Splice Question...One more time
• From: "Ritter, Mike" <mritter(--nospam--at)lgt.lg.com>
• Date: Tue, 17 Aug 1999 16:10:11 -0500

```Right!  I agree with this, and I agree with Bill Allen's response.

Thanks for all who responded!  It sure helps to have other professionals

Michael Ritter, PE

> -----Original Message-----
> From:	Jeffery Seegert (x 485) [SMTP:jbseegert(--nospam--at)matrixti.com]
> Sent:	Tuesday, August 17, 1999 3:57 PM
> To:	'seaint(--nospam--at)seaint.org'
> Subject:	RE: Cold-Formed Joist Lap Splice Question...One more
> time
>
> This would not be the same condition because the hinge is not
> developed.
>  In order to design the connection with a hinge the left beam would
> have
> to stop at the left hinge point and the right beam would have to stop
> at
> the right hinge point.  Instead the left beam cantilevers to the right
> hinge and the right beam cantilevers to the left hinge.  The reaction
> input into the continuous beam by the connection bolt from the
> cantilever will impart a moment on the continuous beam.  the same is
> true on the other side.  The area of the beam is doubled over the
> support so each section resists half of the negative moment.
>
> ___________________P1               P2____________________
> ^            b1             ^                                    ^
>    b2               ^
>
> _____________P2_____P1____________
> ^             b1                ^             b2            ^
>
>
> b1 resists the point load from P2 in bending and b2 resists the point
> load from P1 in bending.
> P1 and P2 equals the negative moment over the middle common support
> divided by the distance from the support to the connection.  This is a
> shear connection designed to resist the  force that creates a moment
> and
> thus a continuous beam.  It is not a moment connection but it is
> designed to transfer the moment through the splice.
>
> .
> -----Original Message-----
> From: William Keil [mailto:WJK(--nospam--at)brph.com]
> Sent: Tuesday, August 17, 1999 3:37 PM
> To: 'seaint(--nospam--at)seaint.org'
> Subject: RE: Cold-Formed Joist Lap Splice Question...One more time
>
>
> YES!  And the design for this condition would support the analysis
> diagram
> below:
>
> >       hinge       hinge
> > -------o----------o----------
> > ^            ^              ^
> > Support    Support         Support
> >
> > William J. Keil, P.E.
>
>

```