Figure 2. Examples of breakout cones for single anchor and horizontal groups
Face of CMU— Vertical groups
Figure 3. Examples of nearest adjacent head joint for vertical groups
Anchors
A and B in Figure 1 represent single anchor installations. They illustrate which head joint would be considered the nearest adjacent head joint edge( C hj) for the respective anchor. Cone A in Figure 2 illustrates the tension breakout cone for Anchor A considering the influence of the nearest adjacent head joint edge as well as the top of wall edge.
Anchors C and D in Figure 1 represent a two-anchor configuration. They illustrate which head joint would be considered the nearest adjacent head joint edge when installed in the same CMU block. Cone CD in Figure 2 illustrates the tension breakout cone for Anchors C and D considering the influence of the nearest adjacent head joint edge.
Anchors E and F in Figure 1 represent a two-anchor configuration. They illustrate which head joint would be considered the nearest adjacent head joint edge when two anchors are installed in different horizontally adjacent CMU blocks and do not share the nearest adjacent head joint edge.
Anchors G and H in Anchors E and F in Figure 1 represent a two-anchor configuration. They illustrate which head joint would be considered the nearest adjacent head joint edge when two anchors are installed in different horizontally adjacent CMU blocks and do not share the nearest adjacent head joint edge. Cone GH in Figure 2 illustrates the tension breakout cone for Anchors G and H considering the influence of the nearest adjacent head joint edge as well as the bottom of wall edge.
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