When a control joint is located on just one side of a pilaster in a concrete masonry wall, how will the lateral loads be transferred from the wall into the pilaster?
Control joints are commonly located along one or both sides of a pilaster, as shown in Figure 1.
The material used within the control joint must be capable of transferring loads without being too flexible. There are many hard rubber control-joint materials available that can transfer lateral loads across them. There also are a variety of other control joint configurations that are equally effective in transferring lateral loads across a control joint. Many of these are illustrated in National Concrete Masonry Association's
NCMA TEK 10-2 Control of Wall Movement With Concrete Masonry, as shown in Figure 2.