Slip Detail for Interior Non-Load Brg Partitions
Slip Detail for Interior Non-Load Brg Partitions
(OP)
I've got a large wood framed (one story) building that is framed with load-bearing wood stud walls and shearwalls that support combinations of wood trusses (pre-engineered) and steel beams.
In most cases, the steel wide flange beams support the wood trusses.
At issue is what to do with a multitude of interior non-load bearing wood stud walls that want to frame up to the bottom of the wood trusses. We are trying to establish our design criteria for the steel beams where we want to keep the vertical deflection under control.
We are using L/360 for the roof snow load as one limit to never exceed.
We also are using 1/2" as an absolute limit for steel beam deflection to ensure that we don't damage partitions below. This is resulting in some very large beams controlled by this deflection.
But we are thinking that maybe we could go higher than 1/2" if we provide some kind of slip connection at the juncture of the partition to the bottom of the truss. Metal studs have those slip tracks that can be used...but in wood - are there any details out there that address this. The partitions sit on the concrete slab below so there is no give should the truss try to bear on the partition.
In most cases, the steel wide flange beams support the wood trusses.
At issue is what to do with a multitude of interior non-load bearing wood stud walls that want to frame up to the bottom of the wood trusses. We are trying to establish our design criteria for the steel beams where we want to keep the vertical deflection under control.
We are using L/360 for the roof snow load as one limit to never exceed.
We also are using 1/2" as an absolute limit for steel beam deflection to ensure that we don't damage partitions below. This is resulting in some very large beams controlled by this deflection.
But we are thinking that maybe we could go higher than 1/2" if we provide some kind of slip connection at the juncture of the partition to the bottom of the truss. Metal studs have those slip tracks that can be used...but in wood - are there any details out there that address this. The partitions sit on the concrete slab below so there is no give should the truss try to bear on the partition.





RE: Slip Detail for Interior Non-Load Brg Partitions
http://www.steelnetwork.com/steel_framing_products...
Some can probably be adapted pretty easily for use with wood wall instead of metal framing.
RE: Slip Detail for Interior Non-Load Brg Partitions
RE: Slip Detail for Interior Non-Load Brg Partitions
That's where I would start with it.
RE: Slip Detail for Interior Non-Load Brg Partitions
thanks again.
RE: Slip Detail for Interior Non-Load Brg Partitions
RE: Slip Detail for Interior Non-Load Brg Partitions
I've read through the thread very quickly so my solution may not be the one you are looking for...
If you are looking for a deflection controlled slip connection between your wood truss bottom to your interior wood partition, Simpson makes Roof Truss Clips for this purpose. Model numbers are STC, STCT and DTC. They do come with vertical slots UcfSE is talking about. Note that the "gap" recommended is 1/4" which is not a whole lot.
RE: Slip Detail for Interior Non-Load Brg Partitions
RE: Slip Detail for Interior Non-Load Brg Partitions
I've seen a detail using steel angles each side of a masonry wall. You could adapt it for wood stud walls using either clip angles at trusses perpendicular to the wall or continous angles directly under the truss. I also think you could use heavy gage metal angle rather than a rolled steel section. The wall would have lateral support without being attached to the deflecting truss and you could pick the amount of movement allowed. Movement of 1/4" seems too little to me, I'm thinking more like 1/2" depending on truss span of course.
Just another thought!