Horizontally Spanning CMU and vert control joints 1

[chrislsnider]

I searched the forums and nothing came up, so I apologize if this has been asked.

I have a tall CMU wall that spans horizontally 12' to pilasters. Wall lengths are in the neighborhood of 116' each. The wall works spanning horizontally and the pilasters work vertically. My question is about the vertical control joints. Since my wall relies on the horizontal continuity of the bond beams, can I use greased bars or something similar to transfer the shear across the joint? Is this a standard practice? Do these dowels need to fully lap with the horizontal bars?

Thanks for your time and input.

 

[hokie66]

Can't at the moment, but the only differences are that the "joint filler" is replaced with mortar, and instead of a backer rod, use bond breaking tape. And of course, the "brick" in your case is block. Then just show the bars going through, and you have a detail which has worked fine on many projects.

 

[johndeng]

concretemasonry,
for your wall, how do you reinforce them? horizontal bars between pilasters?

"Most are industrial/commercial office warehouse buildings using 12" CMUs and are 16 to 24' high with pilasters at about 20-24' O.C. and control joints at one side of each pilaster. The pilasters are 16-24" deep and are turned to project inward or outward"

 

[BAretired]

In my area, it would be more usual to use 8" blocks spanning both horizontally and vertically with pilasters at about 16' centers. Ten or twelve inch blocks are rarely used.

BA