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2019-08-27

[EN] FAQ 002375 | For wall ends and wall corners, no soil contact stresses are deducted in RF-PUNCH Pro ...

Question:
For wall ends and wall corners, no soil contact stresses are deducted in RF-PUNCH Pro, even though the type "Foundation" has been set. It is also nowhere possible to define that the soil contact stresses should be deducted. Why is that?

Answer:
If you perform a punching shear design for a wall corner or a wall end at a floor slab or foundation plate, this entry is not necessary.

Since the punching load is determined at a wall corner or a wall end from the shear forces in the control perimeter when performing the punching shear design, the ratio of the surface load is missing anyway within the control perimeter (up to the load application). Therefore, this entry is also not necessary in Window 1.5.

If you, however, perform the punching shear design for a single column at a foundation plate with the punching load from the normal force of this column, you can enter the "Deductible Surface Load" at the end of Window "1.5 Nodes of Punching Shear - Node of Punching Shear - Details," which allows you to determine ΔV-Ed.