Masonry Veneer Anchors

[1mauricio]

Howdy,

ACI does not provide much in the way of design for stone veneer anchorage requirements. Is there another standard that is useful in design for these? I am trying to determine anchorage spacing for a 4" split-faced limestone veneer anchored to cmu block wall with one-inch cavity (10-15' tall) using typical steel tie anchors that are grouted into the joints of the block and then the veneer.

Is there a rule of thumb for this? I have seen 16" o.c vertical and 32" o.c. horizontal to help with coarsing of the 8" block, but what stresses are of the most concern?

Thanks a lot.

 

[JedClampett]

Check ACI 530-02 Chapter 6.

 

[UcfSE]

I would design the ties for tension for negative wind pressure and compression for positive pressure.

 

[miecz]

Look at the NCMA-TEK manual. TEK No. 64 provides a rational design. (at least, it used to, my copy is dated 1975.)

 

[JAE]

The building code usually includes a required maximum area per tie for anchored veneer. Check the IBC.