Anchor Base Plate Capacity with Irregular Concrete Base Shape

[Pororo]

How do you evaluate the capacity of this base plate connection? I am quite familiar with the process stated in ACI 318, Chapter 17 (Anchoring to Concrete) but do not know how to correctly apply the principles. I am thinking of getting the individual component forces on each anchor and checking the capacity of concrete per anchor. However, Table 17.5.2 of ACI 318-19 calculates concrete breakout and pryout as a group.

How do you deal with this type of base plate connection? Do you have any software suggestions for this?

Thank you very much.

Notes: Gray is concrete base and blue arrow represents shear load.

 

[271828]

Does the column have uplift or moment also?

If not, then attribute the shear to the two anchors at the south. That should simplify the problem considerably.

 

[dik]

Best to start to see if the base plate can sustain the load applied, not determine the capacity. Check it for axial load and moment to see if you have enough bearing area and anchor uplift, check to see if the base plate is thick enough to develop these moments. If all is good then check the anchor rods for shear and tension. Done like a dinner.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik