![PUNCHING SHEAR to BS8110:1997 1 PUNCHING SHEAR](https://excel.civilmdc.com/wp-content/uploads/2021/10/PUNCHING-SHEAR.png)
Punching shear is a phenomenon where a concentrated force on a slab causes a shear failure cone that “punches” through. Punching shear calculations require a demand value and a capacity value.
Many hand calculations will consider a punching shear force against a punching shear capacity force.