Hi Seth, Karl,
I'm having a slight issue with the punching shear check for a tricky slab arrangement with many different Top Of Concrete levels and thicknesses. 1000 x 400 RC column with V* = 800 kN and Mv* = 200 kNm each direction. N40 concrete. AS3600 code.
Essentially the problem I'm having is the punching check isn't considering the larger thicknesses in the audit sections by only taking the smallest thickness of 160 (200 - 40mm cover). The program should be attempting to average out the different thickness in proportion to how much each thickness contributes to the shear perimeter?
One potential reason why the program may be having difficulty is that each slab segment and the column centroid share a common FEM node. But I moved the column slightly off this node and re-positioned and rechecked the punching shear calc yet the same issued occurred.
I've gone through the calc manually by hand and can see it's on the verge of not working, however it would be good if I can get the program to confirm this.
Thanks in advance for the help. Cheers
