Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: LGSS - Partition Attachment

[Subject Prev][Subject Next][Thread Prev][Thread Next]
I have designed one or 2 of these in the past.  Basically you have a bent plate on each side of the studs.  Fasten the plates to the purlins and let them slide over the studs.  It becomes a bit more of a challenge if the wall is an area separation wall.  The fire safing must be compressible, and if you assume 50% compressibility then the joint space has to be twice the calculated deflection.  

You might have to reinforce these plates at the purlins.  The 5 psf partition load is not much, but it is a lot when you have a tall wall.

Also don't forget to allow for the lateral drift of the building due to wind.  The end of the interior wall will hold while the building moves from side to side.  The safing issue can be the same here (twice the calculated lateral drift).  Unless you have a tight lateral drift spec. you will be amazed how much the building will move for even a 10 year wind.

One other caveat is to let the building manufacturer know what type of loads and lateral drift you can tolerate for stability and serviceability.  This is more of an issue in seismic areas with masonry walls.

Harold Sprague
Krawinkler, Luth & Assoc.
4412 W. Eisenhower Blvd.
Loveland, CO 80537
Voice: 970 667-2426
Fax: 970 667-2493
Email: hsprague(--nospam--at)

-----Original Message-----
From:	Richard Lewis [SMTP:rlewis(--nospam--at)]
Sent:	Tuesday, March 17, 1998 5:52 PM
To:	seaoc(--nospam--at)
Subject:	LGSS - Partition Attachment

I am detailing an interior partition inside a pre-engineered metal building. 
The partition is metal stud and extends all the way up to the roof.  I have 2
conditions, one where the partition is perpendicular to the roof zee purlins
and the other where the partition is parallel to the zee purlins.  The
partition is very tall, 26 feet unbraced height, due to the span of the
building and the gable roof slope.  It is a non-bearing partition and I would
like to keep it that way.  To do this I need to design a vertical sliding
connection at the top so that the wall is not loaded when the rigid frame or
the roof purlins deflect.  The vertical slide needs to be quite large, in the
order of 2 - 3 inches at the ridge line.  Has anybody developed a good way of
detailing a vertical slide connection for a metal stud wall partition
application such as this?


Richard Lewis, P.E.
Missionary TECH Team

The service mission like-minded Christian organizations
may turn to for technical assistance and know-how.