Figure 4. Examples of breakout cones for vertical groups
Anchors C through F in Figure 3 represent a four-anchor configuration. They illustrate which head joints would be considered the nearest adjacent head joint edges when installed in different vertically and horizontally adjacent CMU blocks. All head joints will extend vertically( dashed lines) and be treated as assumed head joint edges. Cone CDEF in Figure 4 illustrates the tension breakout cone for Anchors C through F considering the influence of the nearest adjacent head joint edges.
Bed joint installation
Figure 5. Examples of nearest adjacent head joint for bed joint installation
Anchors A and B in Figure 5 represent single anchor installations. They illustrate which head joint would be considered the nearest adjacent head joint edge( c hj) for the respective anchor.
Anchors C and D in Figure 5 represent a two-anchor configuration. They illustrate which head joint would be considered the nearest adjacent head joint edge when installed in the bed joint between two head joints.
Anchors A and B in Figure 3 represent a two-anchor configuration. They illustrate which head joints would be considered the nearest adjacent head joint edges when installed in different vertically adjacent CMU blocks. Both head joints will extend vertically( dashed lines) and be treated as assumed head joint edges. Cone AB in Figure 4 illustrates the tension breakout cone for Anchors A and B considering the influence of the nearest adjacent head joint edges.
Anchors E and F in Figure 5 represent a two-anchor configuration. They illustrate which head joint would be considered the nearest adjacent head joint edge when installed in the bed joint with a head joint between them.
Anchors G and H in Figure 5 represent a two-anchor configuration. They illustrate which head joints would be considered the nearest adjacent head joint edges when installed in different horizontally adjacent CMU blocks.
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