Hello, I am trying to analyze 10" slab that supports 12x12 column with axial load and a moment. I am not sure what is the difference between development length design and anchoring to concrete to design for bar yield is.
The goal is to see how much development #5 bars need and to compare to the embedment we have in the existing slab and see if utilization of the bars is less than their design capacity.
I also am not sure why i am seeing numbers in red in anchor design when they are smaller values that axial bar capacity
Hi Arina,
For information related to how post-installed reinforcement can be designed for tension development using anchoring-to-concrete provisions in ACI 318 Chapter 17 in place of the development provisions in ACI 318 Chapter 25, please see this Ask Hilti article.
When designing for bar yield using anchoring-to-concrete provisions in PROFIS Enginering, some failure modes may appear red when steel failure is not governing or the resulting embedment depth is not less than development length. Failure modes shown in red have a design strength lower than that of the steel.
Regards,
Matthew