Masonry Anchor Strength Design Guide 2024
Face of CMU — Vertical Groups
Figure 3 — Examples of Nearest Adjacent Head Joint for Vertical Groups
Figure 4 — Examples of Breakout Cones for Vertical Groups ( Continued )
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 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 .
Figure 4 — Examples of Breakout Cones for Vertical Groups
Masonry Fastening Technical Guide Edition 24 Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458
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