CMU wall base connection to slab
CMU wall base connection to slab
(OP)
I have a large pre-fab metal building on a post-tensioned slab, and I am designing masonry walls inside to divide up the space and to supprt a wood-framed 2nd floor. (In other words, there are a combination of CMU bearing walls and CMU non-strucutral partitions on this large PT slab.) All of the walls are away from the edge of the slab because the slab extends out away from the metal building below a covered patio. The project is in a southern location where frost should not be an issue.
What is standard practice for anchoring the base of the wall to the slab? An embed plate every so often with a few headed anchor studs sticking up into a grouted cell? The lateral loads are not high, and wind controls.
Also, since I do not have extensive experience with CMU design, how are CMU walls typically anchored to a slab, or do they rely on the bond between the lowest mortar bed and the slab?
Thanks!
What is standard practice for anchoring the base of the wall to the slab? An embed plate every so often with a few headed anchor studs sticking up into a grouted cell? The lateral loads are not high, and wind controls.
Also, since I do not have extensive experience with CMU design, how are CMU walls typically anchored to a slab, or do they rely on the bond between the lowest mortar bed and the slab?
Thanks!






RE: CMU wall base connection to slab
RE: CMU wall base connection to slab
Thanks!
RE: CMU wall base connection to slab
RE: CMU wall base connection to slab
RE: CMU wall base connection to slab
Would I treat the CMU-to-slab bed joint the same way as unreinforced masonry, and just check stress across the joint (per ACI 530-05 section 3.2.4)? the interface between concrete and masonry does not seem to be addressed per se in the MSJC codes.
RE: CMU wall base connection to slab
RE: CMU wall base connection to slab
How high are the interior walls and is there any forklift (or similar) traffic inside? If you have high walls, you may need bracing or restraint at the top because of the potential to pick up some load (due to the 5 psi or casual loading).
Dick
RE: CMU wall base connection to slab
Jike, as you pointed out, there are also additional requirements for any seismic category, so they must always be considered. (1.14.3 through 1.14.7)
Thank you all for the help. Pretty basic stuff, but I wanted a better feel for what is standard construction practice in addition to the engineering requirements. I believe the designs I've seen where there were no mechanical connections to the slab were erroneous.