Non load-bearing masonry

[slickdeals]

What is your standard detail when it comes to non load-bearing masonry around the building envelope transferring wind/seismic loads to the diaphragm.

In my old firm, for post-tensioned slabs, the detail involved sleeves through which reinforcing was passed through and grouted. IMO, this is not truly non load-bearing, but because this wall did not continue on through to the foundation, it acted as a "deep beam" for bending. Each slab (cantilever or not) picked up its share of this load. I don't believe we had any issues with this detail.

However, if the masonry did go through to the foundation, I am certain this would have picked up loads incrementally and possibly caused problems.

A proper detail would be to use a compressible filler in between, and maybe rebar in sleeves (not grouted) for shear transfer. However, with the gap, the rebar would be substantial (shear + bending).

Appreciate your inputs.

 

[charliealphabravo]

I'm having trouble visualizing. It would help if I could see a sketch of the configuration you are detailing?

 

[hokie66]

A typical detail for interior non-loadbearing masonry is to provide angles each side, connected to the slab above but allowing vertical differential movement. Some details provide the connection on one side only, with bolts in the wall and slotted holes in the steel.

 

[IsaacStructural]

I agree with Hokie66's detail, this is what I've used in the past. Be sure to provide a clearance dimension between top of wall and bottom of slab.

M.S. Structural Engineering
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)

 

[asixth]

I just use cerra ties for the head restraint.

 

[msquared48]

I, too, have used a detail similar to what Hokie described.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[slickdeals]

Hokie, I agree with your detail for interior walls and I have used similar details in the past. However, my question was specific to exterior walls where connection can be done only on one side.

 

[hokie66]

Yes, I did read it that way. I suggested using a vertically slotted arrangement in the brackets on one side. I have seen a version of the sleeved detail used, with smooth dowels in a slightly oversize sleeve and not grouted.