PROFIS ENGINEERING
• PROFIS Engineering will only consider shear concrete breakout for up to three rows / columns.
• PROFIS Engineering assumes the resultant shear load acts on an anchor row or column instead of the shear load component acting in either the x or y direction.
• When calculating the nominal concrete breakout strength in shear( V cb( g)), PROFIS Engineering includes a parameter designated( ψ parallel, V) to identify whether shear load towards a fixed edge is being assumed or shear load parallel to a fixed edge. This parameter is also shown in the design example calculations.
• If shear load towards a fixed edge is being assumed, ψ parallel, V = 1.0 is shown in the V cb( g) calculations.
• If shear load parallel to a fixed edge is being assumed, ψ parallel, V = 2.0 is shown in the V cb( g) calculations.
• The“ band width” approach is a design concept exclusive to PROFIS Engineering that permits consideration of an equivalent shear concrete breakout body for irregular anchor layouts.
• Examples of irregular anchor layouts include circular configurations and configurations where no two anchors are aligned to form a row or column.
One
Fixed Edge – V ua towards Edge – Case 1 / Case 2
Anchor |
Design |
Loads |
HIT RE 500 V3 |
ACI 318-19 Chapter 17 |
Tension: N ua = 10,000 lb |
ESR-3814( 03 / 2023 – 01 / 2025) |
non-seismic |
Shear: V ua, y =-50,000 lb |
7 / 8” A36 threaded rod: |
|
|
carbon steel: f ult = 58,000 psi f y = 36,000 psi
Sustained Tension: N ua = 6,000 lb h ef = 12.0 in
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