CMU Wall inside Preengineered MB - Brace or Cantilever
CMU Wall inside Preengineered MB - Brace or Cantilever
(OP)
Interior non bearing walls inside pre engineered metal buildings.
Realitvely tall - 20 feet.
Is it better to design as free standing cantilever for seismic loads or
brace the top of wall with slotted connections for vertical loads and design for all in plane and out of plane loads?
Thank you.
Realitvely tall - 20 feet.
Is it better to design as free standing cantilever for seismic loads or
brace the top of wall with slotted connections for vertical loads and design for all in plane and out of plane loads?
Thank you.






RE: CMU Wall inside Preengineered MB - Brace or Cantilever
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
I have searched the codes - am I missing this?
No one here to talk with.
Thank you.
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
L/600 is what I've always used for deflection of masonry. I use it b/c I was told to a long time ago, to avoid cracking, and have heard it multiple times from multiple people since.
Guess I should investigate further as well.
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
I have been told L/600 in a previous employment as a rule of thumb - but the MBM do not want to cooperate and can usually convince the architects to lessen the requirement.
Again Thank you.
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
Keep in mind that the L/600 is codified for vertical deflections (ACI 530). For out-of-plane deflections I agree that L/600 is a good idea for exterior walls. For interior walls that don't have to remain water resistant, perhaps a lessor out-of-plane deflection can occur with adequate servicability.
L/360 perhaps?
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
The design of the metal building manufacturer must coincide with your design. Coordination is essential here.
Mike McCann
MMC Engineering
RE: CMU Wall inside Preengineered MB - Brace or Cantilever
I had detailed a totally free system with fluorogold bearings (a tip I found at this site) but it just seemed to be too complicated.
Thank you
RE: CMU Wall inside Preengineered MB - Brace or Cantilever