Profis Engineering: ACI design

Hi Nam,

Thanks for posting your query.
For post-installed and cast-in-place anchors, supplementary reinforcement will not transfer the load to the concrete member but will help to restrain concrete breakout, per the ACI 318-14 Anchoring-to-Concrete provisions.


Condition A applies where supplementary reinforcement is present except for pullout and pry out strengths.

Condition B applies where supplementary reinforcement is not present, and for pullout or pry out strength.


If utilizing this feature, Condition A and Condition B can be chosen for Tension and Shear, which will modify the f-factor and ycp,N (or ycp,Na) used in the concrete breakout calculation.

If supplementary reinforcement is present (Condition A), greater deformation capacity is provided than in the case where such supplementary reinforcement is not present (Condition B).”

Hope this clarifies.

Regards,
Team Ask Hilti SEA